VB编写程序,用牛顿切线法求方程f(x)＝ x^2-x-8＝0（其中^表示 幂运算）在区间[3,4]上的近似实根r,迭代
VB编写程序,用牛顿切线法求方程f(x)＝ x^2-x-8＝0（其中^表示 幂运算）在区间[3,4]上的近似实根r,迭代加50编写程序,用牛顿切线法求方程f(x)＝ x^2-x-8＝0（其中^表示幂运算）在区间[3,4]上的近似实根r,迭代初值自选,精确到0.0001.〔提示:计算公式为x＝x-f(x)/fˊ(x)〕
与《VB编写程序,用牛顿切线法求方程f(x)＝ x^2-x-8＝0（其中^表示 幂运算）在区间[3,4]上的近似实根r,迭代》相关的作业问题
用VBA编的,应该和VB差不多吧.如果有用请采纳. o(∩_∩)o Sub CalcFuncResult()Dim Fx, dFx, x1, x2x1 = 0: x2 = 1While Abs(x1 - x2) > 0.0001 x1 = x2 Fx = x1 + Log(x1) - 1.7 dFx = 1 + 1 /
是这个题目吧编写程序,用Newton迭代法求方程f(x)=2x+cosx-2.6=0在区间[0,4]上的近似实根r,迭代初值自选,精确到0.0001.牛顿切线法的计算公式为x=x-f(x)/f’(x)#include #include main(){\x05float x,x0,f,f1;\x05x=2; /*迭代初值
f15z 再问： 在？
#include #include float f(float x) { y=x*x*x+2*x+10; return(y); } float f1(float x) { y=3*x*x+2; return(y); } void main() { float x0=-1.0,x1;
'程序可以继续完善的：'1、如果指定区间无解,怎么办'2、迭代过程跳出了指定区间,怎么办'3、如何使用界面直接输入方程式Private Sub Command1_Click() Dim 上限 As Single, 下限 As Single, 误差 As Single, 自变量 As Single, k As Singl
#include#includevoid main(){void function1();//搜索法void function2();//二分法 void function4();//牛顿法printf("请选择求解的方法:\n\t1.搜索法\n\t2.二分法\n\t3.牛顿法\n:");swit
程序;clearclcsyms xf=(x+log(x)-1.7).^2;eps=1;x0=1;df=diff(f,x);dff=diff(df,x);while abs(eps)>1e-4df1=subs(df,x,x0);dff2=subs(dff,x,x0);if dff2==0breakelsexx=x0-(1
Private Sub Form_Load()Me.AutoRedraw = TrueDim x#x = 1.5Do Until Abs(f(x)) < 0.0001x = x - f(x) / df(x)LoopPrint Format(x, "0.0000")Print Format(f(x), "0.0000")
世界上有鬼的证据 （1）在美国科学家们做过一个实验.他们找来一个人,将他催眠,他竟能说出自己的前生的情况和今生死时的模样 （2）我的一个朋友就这么不幸死去.她有一次在家无聊地用自己家电话拨通自己家电话,很多次后终于拨通了,她听到一个空洞洞的声音,好象一个回音谷并且还有水滴的声音.第二天她失踪了,三天后警察在一个回音谷的
我的c语言运行结果是2.7419,不同版本可能会有差异,但不影响正确性#include#includevoid main(){float x0,x1;x0=2.5;x1=x0-(x0+log10(x0)-3.18)/(1+1/(x0*log(10)));do{x0=x1;x1=x0-(x0+log10
牛顿迭代法的思想是这样的:x和x0不断的迭代.令f(x)=5*x^5-8x^3+10x^2-7*x+25则f'(x)=25x^4-24x^2+20x-7有:x=x0-f(x)/f'(x)收敛于:|x-x0|1e-6);printf("%f\n",x);}
#include#includevoid main(){void function1();//搜索法void function2();//二分法 void function4();//牛顿法printf("请选择求解的方法:\n\t1.搜索法\n\t2.二分法\n\t3.牛顿法\n:");swit
#includevoid main(){double a=0.0001,b=1.5;while(b+ -1.7==0) {b=b+a;}printf("%f",b); }/* b＋这里因为用手机打不出来 我也新手 希望对你有所帮助*/
syms xx0=2;f=x^3-3*x-1;eps=1e-6;maxcnt=1000;fx=diff(f,x);x1=x0;cnt=1;while cnt
参阅 http://zhidao.baidu.com/question/.html?fr=qrl&cid=983&index=5&fr2=query
牛顿切线法的迭代公式是：Xn+1=Xn-f(Xn)/f'(Xn),f(x)=x^5+5x+1,f'(x)为其导数,f'(x)=5x^4+5,X0可以取0,X1=-0.2.直到|Xn+1-Xn|
#include#include#define F(x) 2*x*x*x-4*x*x+3*x-7//The function#define K(x) 6*x*x-8*x+3//The pitchvoid main(){double x,xx,f,k;x=2.5;f=F(x);//Get the valuek=K(x);
#include#include#define eps 1e-8void main(){double a=1,b=2;double t,t0,f0,f00,m,n;t0=(a+b)/2;m=pow(t0,5);n=pow(t0,4);f0=6*m-1;f00=30*n;t=t0-f0/f00;whil> 问题详情
（22）设有如下程序段：Dim a（10)...For Each x In aPNext x在上面的程序段中，变量x必须是A）
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（22）设有如下程序段：Dim a(10)...For Each x In aPNext x在上面的程序段中，变量x必须是A）整型变量B）变体型变量C)动态数组D)静态数组请帮忙给出正确答案和分析，谢谢！
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1（23）设有以下函数过程Private Function Fun(a() As Integer, b As String) As Integer...End Function若已有变量声明：Dim x(5）As Integer, n As Integer, ch As String则下面正确的过程调用语句是A）x(o)＝Fun(x, "ch")&&&&&&&&&&&&&&&&&B）n＝Fun(n, chC）Call Fun x, "ch"&&&&&&&&&&&&&&&&&&&&D）n＝Fun(x(5), ch)2(24）假定用下面的语句打开文件：Open"File l .txt"For Input As＃1则不能正确读文件的语句是A）Input # 1, ch$&&&&&&&&&&&&&&&&&&&&&&&&B）Line Input # 1, ch$C）ch$＝Input$(5, # 1)&&&&&&&&&&&&&&&&&&&D）Read # 1, ch$
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Trying to print a PDF File from VB
I'm trying to print an ADOBE PDF file to a network printer. The application
I am writing needs to continuously keep changing it's default printer. I
tried using the ShellExecute API Call, but that didn't help since the Default
Printer in the system was not the default printer of the application.
Can anyone please point me in the right direction?
Re: Trying to print a PDF File from VB
Each time you need to use set default printer using:...
'// Common Dialogs Module
'// Description:
'// Provides wrapper functions into the various Windows OS common dialog
'// ***************************************************************
Go to Dragon's VB Code Corner for more useful sourcecode:
'// ***************************************************************
'// Author of this module: Unknown
Option Explicit
'// Structures
Private Type OPENFILENAME
lStructSize As Long
hWnd As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
Flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
Private Type COLORSTRUC
lStructSize As Long
hWnd As Long
hInstance As Long
rgbResult As Long
lpCustColors As String
Flags As Long
lCustData As Long
lpfnHook As Long
lpTemplateName As String
Private Const LF_FACESIZE = 32
Private Type LOGFONT
lfHeight As Long
lfWidth As Long
lfEscapement As Long
lfOrientation As Long
lfWeight As Long
lfItalic As Byte
lfUnderline As Byte
lfStrikeOut As Byte
lfCharSet As Byte
lfOutPrecision As Byte
lfClipPrecision As Byte
lfQuality As Byte
lfPitchAndFamily As Byte
lfFaceName(LF_FACESIZE) As Byte
Private Type FONTSTRUC
lStructSize As Long
hWnd As Long
hDC As Long
lpLogFont As Long
iPointSize As Long
Flags As Long
rgbColors As Long
lCustData As Long
lpfnHook As Long
lpTemplateName As String
hInstance As Long
lpszStyle As String
nFontType As Integer
MISSING_ALIGNMENT As Integer
nSizeMin As Long
nSizeMax As Long
Public Type DEVMODE
dmDeviceName As String * 32
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * 32
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFreq As Long
Private Type PRINTDLGSTRUC
lStructSize As Long
hWnd As Long
hDevMode As Long
hDevNames As Long
hDC As Long
Flags As Long
nFromPage As Integer
nToPage As Integer
nMinPage As Integer
nMaxPage As Integer
nCopies As Integer
hInstance As Long
lCustData As Long
lpfnPrintHook As Long
lpfnSetupHook As Long
lpPrintTemplateName As String
lpSetupTemplateName As String
hPrintTemplate As Long
hSetupTemplate As Long
Public Type PRINTPROPS
Cancel As Boolean
Device As String
Copies As Integer
Collate As Boolean
File As Boolean
All As Boolean
Pages As Boolean
Selection As Boolean
FromPage As Integer
ToPage As Integer
DM As DEVMODE
Private Type SHITEMID
cb As Long
abID As Byte
Private Type ITEMIDLIST
mkid As SHITEMID
Private Type BROWSEINFO
hOwner As Long
pidlRoot As Long
pszDisplayName As String
lpszTitle As String
ulFlags As Long
lpfn As Long
lParam As Long
iImage As Long
'// Win32s (Private Functions for Wrappers Below)
Private Declare Function GetOpenFileName Lib &comdlg32.dll& Alias &GetOpenFileNameA&
(pOpenfilename As OPENFILENAME) As Long
Private Declare Function GetSaveFileName Lib &comdlg32.dll& Alias &GetSaveFileNameA&
(pOpenfilename As OPENFILENAME) As Long
Private Declare Function PrintDlg Lib &comdlg32.dll& Alias &PrintDlgA& (pPrintdlg
As PRINTDLGSTRUC) As Long
Private Declare Function ChooseColor Lib &comdlg32.dll& Alias &ChooseColorA&
(pChoosecolor As COLORSTRUC) As Long
Private Declare Function ChooseFont Lib &comdlg32.dll& Alias &ChooseFontA&
(pChoosefont As FONTSTRUC) As Long
Private Declare Function GlobalAlloc Lib &Kernel32& (ByVal wFlags As Long,
ByVal dwBytes As Long) As Long
Private Declare Function GlobalFree Lib &Kernel32& (ByVal hMem As Long) As
Private Declare Function GlobalLock Lib &Kernel32& (ByVal hMem As Long) As
Private Declare Function GlobalUnlock Lib &Kernel32& (ByVal hMem As Long)
Private Declare Sub CopyMemory Lib &Kernel32& Alias &RtlMoveMemory& (hpvDest
As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Declare Function SHGetPathFromIDList Lib &SHELL32.DLL& Alias &SHGetPathFromIDListA&
(ByVal pidl As Long, ByVal pszPath As String) As Long
Private Declare Function SHGetSpecialFolderLocation Lib &SHELL32.DLL& (ByVal
hwndOwner As Long, ByVal nFolder As Long, pidl As ITEMIDLIST) As Long
Private Declare Function SHBrowseForFolder Lib &SHELL32.DLL& Alias &SHBrowseForFolderA&
(lpBrowseInfo As BROWSEINFO) As Long 'ITEMIDLIST
Private Declare Function WriteProfileString Lib &Kernel32& Alias &WriteProfileStringA&
(ByVal lpszSection As String, ByVal lpszKeyName As String, ByVal lpszString
As String) As Long
Private Declare Function GetProfileString Lib &Kernel32& Alias &GetProfileStringA&
(ByVal lpAppName As String, ByVal lpKeyName As String, ByVal lpDefault As
String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long
Private Declare Function SendMessageByString Lib &user32& Alias &SendMessageA&
(ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam
As String) As Long
'// Win32s (Public)
Declare Function WinHelp Lib &user32& Alias &WinHelpA& (ByVal hWnd As Long,
ByVal lpHelpFile As String, ByVal wCommand As Long, ByVal dwData As Any)
Declare Function HTMLHelp Lib &hhctrl.ocx& Alias &HtmlHelpA& (ByVal hWnd
As Long, ByVal szFilename As String, ByVal dwCommand As Long, ByVal dwData
As Any) As Long
'// Constants (Public for Print Dialog Box)
Public Const PD_NOSELECTION = &H4
Public Const PD_DISABLEPRINTTOFILE = &H80000
Public Const PD_PRINTTOFILE = &H20
Public Const PD_RETURNDC = &H100
Public Const PD_RETURNDEFAULT = &H400
Public Const PD_RETURNIC = &H200
Public Const PD_SELECTION = &H1
Public Const PD_SHOWHELP = &H800
Public Const PD_NOPAGENUMS = &H8
Public Const PD_PAGENUMS = &H2
Public Const PD_ALLPAGES = &H0
Public Const PD_COLLATE = &H10
Public Const PD_HIDEPRINTTOFILE = &H100000
'// Constants (Public for WinHelp)
Public Const HELP_COMMAND = &H102&
Public Const HELP_CONTENTS = &H3&
Public Const HELP_CONTEXT = &H1
Public Const HELP_CONTEXTPOPUP = &H8&
Public Const HELP_FORCEFILE = &H9&
Public Const HELP_HELPONHELP = &H4
Public Const HELP_INDEX = &H3
Public Const HELP_KEY = &H101
Public Const HELP_MULTIKEY = &H201&
Public Const HELP_PARTIALKEY = &H105&
Public Const HELP_QUIT = &H2
Public Const HELP_SETCONTENTS = &H5&
Public Const HELP_SETINDEX = &H5
Public Const HELP_SETWINPOS = &H203&
'// Constants (Public for HTMLHelp)
Public Const HH_DISPLAY_TOPIC = &H0&
Public Const HH_HELP_FINDER = &H0&
Public Const HH_DISPLAY_TOC = &H1&
'// Currently Not Implemented
Public Const HH_DISPLAY_INDEX = &H2&
'// Currently Not Implemented
Public Const HH_DISPLAY_SEARCH = &H3& '// Currently Not Implemented
Public Const HH_SET_WIN_TYPE = &H4&
Public Const HH_GET_WIN_TYPE = &H5&
Public Const HH_GET_WIN_HANDLE = &H6&
Public Const HH_ENUM_INFO_TYPE = &H7&
Public Const HH_SET_INFO_TYPE = &H8&
Public Const HH_SYNC = &H9&
Public Const HH_ADD_NAV_UI = &H10&
'// Currently Not Implemented
Public Const HH_ADD_BUTTON = &H11&
'// Currently Not Implemented
Public Const HH_GETBROWSER_APP = &H12& '// Currently Not Implemented
Public Const HH_KEYWORD_LOOKUP = &H13&
Public Const HH_DISPLAY_TEXT_POPUP = &H14&
Public Const HH_HELP_CONTEXT = &H15&
Public Const HH_TP_HELP_CONTEXTMENU = &H16&
Public Const HH_TP_HELP_WM_HELP = &H17&
Public Const HH_CLOSE_ALL = &H18&
Public Const HH_ALINK_LOOKUP = &H19&
Public Const HH_GET_LAST_ERROR = &H20&
'// Currently Not Implemented
Public Const HH_ENUM_CATEGORY = &H21&
Public Const HH_ENUM_CATEGORY_IT = &H22&
Public Const HH_RESET_IT_FILTER = &H23&
Public Const HH_SET_INCLUSIVE_FILTER = &H24&
Public Const HH_SET_EXCLUSIVE_FILTER = &H25&
Public Const HH_SET_GUID = &H26&
Public Const HH_INTERNAL = &H255&
'// Constants (Private)
Private Const FW_BOLD = 700
Private Const GMEM_MOVEABLE = &H2
Private Const GMEM_ZEROINIT = &H40
Private Const GHND = (GMEM_MOVEABLE Or GMEM_ZEROINIT)
Private Const OFN_ALLOWMULTISELECT = &H200
Private Const OFN_CREATEPROMPT = &H2000
Private Const OFN_ENABLEHOOK = &H20
Private Const OFN_ENABLETEMPLATE = &H40
Private Const OFN_ENABLETEMPLATEHANDLE = &H80
Private Const OFN_EXPLORER = &H80000
Private Const OFN_EXTENSIONDIFFERENT = &H400
Private Const OFN_FILEMUSTEXIST = &H1000
Private Const OFN_HIDEREADONLY = &H4
Private Const OFN_LONGNAMES = &H200000
Private Const OFN_NOCHANGEDIR = &H8
Private Const OFN_NODEREFERENCELINKS = &H100000
Private Const OFN_NOLONGNAMES = &H40000
Private Const OFN_NONETWORKBUTTON = &H20000
Private Const OFN_NOREADONLYRETURN = &H8000
Private Const OFN_NOTESTFILECREATE = &H10000
Private Const OFN_NOVALIDATE = &H100
Private Const OFN_OVERWRITEPROMPT = &H2
Private Const OFN_PATHMUSTEXIST = &H800
Private Const OFN_READONLY = &H1
Private Const OFN_SHAREAWARE = &H4000
Private Const OFN_SHAREFALLTHROUGH = 2
Private Const OFN_SHARENOWARN = 1
Private Const OFN_SHAREWARN = 0
Private Const OFN_SHOWHELP = &H10
Private Const PD_ENABLEPRINTHOOK = &H1000
Private Const PD_ENABLEPRINTTEMPLATE = &H4000
Private Const PD_ENABLEPRINTTEMPLATEHANDLE = &H10000
Private Const PD_ENABLESETUPHOOK = &H2000
Private Const PD_ENABLESETUPTEMPLATE = &H8000
Private Const PD_ENABLESETUPTEMPLATEHANDLE = &H20000
Private Const PD_NONETWORKBUTTON = &H200000
Private Const PD_PRINTSETUP = &H40
Private Const PD_USEDEVMODECOPIES = &H40000
Private Const PD_USEDEVMODECOPIESANDCOLLATE = &H40000
Private Const PD_NOWARNING = &H80
Private Const CF_ANSIONLY = &H400&
Private Const CF_APPLY = &H200&
Private Const CF_BITMAP = 2
Private Const CF_PRINTERFONTS = &H2
Private Const CF_PRIVATEFIRST = &H200
Private Const CF_PRIVATELAST = &H2FF
Private Const CF_RIFF = 11
Private Const CF_SCALABLEONLY = &H20000
Private Const CF_SCREENFONTS = &H1
Private Const CF_BOTH = (CF_SCREENFONTS Or CF_PRINTERFONTS)
Private Const CF_DIB = 8
Private Const CF_DIF = 5
Private Const CF_DSPBITMAP = &H82
Private Const CF_DSPENHMETAFILE = &H8E
Private Const CF_DSPMETAFILEPICT = &H83
Private Const CF_DSPTEXT = &H81
Private Const CF_EFFECTS = &H100&
Private Const CF_ENABLEHOOK = &H8&
Private Const CF_ENABLETEMPLATE = &H10&
Private Const CF_ENABLETEMPLATEHANDLE = &H20&
Private Const CF_ENHMETAFILE = 14
Private Const CF_FIXEDPITCHONLY = &H4000&
Private Const CF_FORCEFONTEXIST = &H10000
Private Const CF_GDIOBJFIRST = &H300
Private Const CF_GDIOBJLAST = &H3FF
Private Const CF_INITTOLOGFONTSTRUCT = &H40&
Private Const CF_LIMITSIZE = &H2000&
Private Const CF_METAFILEPICT = 3
Private Const CF_NOFACESEL = &H80000
Private Const CF_NOVERTFONTS = &H1000000
Private Const CF_NOVECTORFONTS = &H800&
Private Const CF_NOOEMFONTS = CF_NOVECTORFONTS
Private Const CF_NOSCRIPTSEL = &H800000
Private Const CF_NOSIMULATIONS = &H1000&
Private Const CF_NOSIZESEL = &H200000
Private Const CF_NOSTYLESEL = &H100000
Private Const CF_OEMTEXT = 7
Private Const CF_OWNERDISPLAY = &H80
Private Const CF_PALETTE = 9
Private Const CF_PENDATA = 10
Private Const CF_SCRIPTSONLY = CF_ANSIONLY
Private Const CF_SELECTSCRIPT = &H400000
Private Const CF_SHOWHELP = &H4&
Private Const CF_SYLK = 4
Private Const CF_TEXT = 1
Private Const CF_TIFF = 6
Private Const CF_TTONLY = &H40000
Private Const CF_UNICODETEXT = 13
Private Const CF_USESTYLE = &H80&
Private Const CF_WAVE = 12
Private Const CF_WYSIWYG = &H8000
Private Const CFERR_CHOOSEFONTCODES = &H2000
Private Const CFERR_MAXLESSTHANMIN = &H2002
Private Const CFERR_NOFONTS = &H2001
Private Const CC_ANYCOLOR = &H100
Private Const CC_CHORD = 4
Private Const CC_CIRCLES = 1
Private Const CC_ELLIPSES = 8
Private Const CC_ENABLEHOOK = &H10
Private Const CC_ENABLETEMPLATE = &H20
Private Const CC_ENABLETEMPLATEHANDLE = &H40
Private Const CC_FULLOPEN = &H2
Private Const CC_INTERIORS = 128
Private Const CC_NONE = 0
Private Const CC_PIE = 2
Private Const CC_PREVENTFULLOPEN = &H4
Private Const CC_RGBINIT = &H1
Private Const CC_ROUNDRECT = 256 '
Private Const CC_SHOWHELP = &H8
Private Const CC_SOLIDCOLOR = &H80
Private Const CC_STYLED = 32
Private Const CC_WIDE = 16
Private Const CC_WIDESTYLED = 64
Private Const CCERR_CHOOSECOLORCODES = &H5000
Private Const LOGPIXELSY = 90
Private Const CCHDEVICENAME = 32
Private Const CCHFORMNAME = 32
Private Const SIMULATED_FONTTYPE = &H8000
Private Const PRINTER_FONTTYPE = &H4000
Private Const SCREEN_FONTTYPE = &H2000
Private Const BOLD_FONTTYPE = &H100
Private Const ITALIC_FONTTYPE = &H200
Private Const REGULAR_FONTTYPE = &H400
Private Const WM_CHOOSEFONT_GETLOGFONT = (&H400 + 1)
Private Const LBSELCHSTRING = &commdlg_LBSelChangedNotify&
Private Const SHAREVISTRING = &commdlg_ShareViolation&
Private Const FILEOKSTRING = &commdlg_FileNameOK&
Private Const COLOROKSTRING = &commdlg_ColorOK&
Private Const SETRGBSTRING = &commdlg_SetRGBColor&
Private Const FINDMSGSTRING = &commdlg_FindReplace&
Private Const HELPMSGSTRING = &commdlg_help&
Private Const CD_LBSELNOITEMS = -1
Private Const CD_LBSELCHANGE = 0
Private Const CD_LBSELSUB = 1
Private Const CD_LBSELADD = 2
Private Const NOERROR = 0
Private Const CSIDL_DESKTOP = &H0
Private Const CSIDL_PROGRAMS = &H2
Private Const CSIDL_CONTROLS = &H3
Private Const CSIDL_PRINTERS = &H4
Private Const CSIDL_PERSONAL = &H5
Private Const CSIDL_FAVORITES = &H6
Private Const CSIDL_STARTUP = &H7
Private Const CSIDL_RECENT = &H8
Private Const CSIDL_SENDTO = &H9
Private Const CSIDL_BITBUCKET = &HA
Private Const CSIDL_STARTMENU = &HB
Private Const CSIDL_DESKTOPDIRECTORY = &H10
Private Const CSIDL_DRIVES = &H11
Private Const CSIDL_NETWORK = &H12
Private Const CSIDL_NETHOOD = &H13
Private Const CSIDL_FONTS = &H14
Private Const CSIDL_TEMPLATES = &H15
Private Const BIF_RETURNONLYFSDIRS = &H1
Private Const BIF_DONTGOBELOWDOMAIN = &H2
Private Const BIF_STATUSTEXT = &H4
Private Const BIF_RETURNFSANCESTORS = &H8
Private Const BIF_BROWSEFORCOMPUTER = &H1000
Private Const BIF_BROWSEFORPRINTER = &H2000
Private Const HWND_BROADCAST = &HFFFF&
Private Const WM_WININICHANGE = &H1A
'// SetDefaultPrinter Function
'// Description:
'// Sets the user's default printer to the printer represented by the passed
printer object.
'// Syntax:
'// BOOL = SetDefaultPrinter(object)
'// Example:
'// Dim objNewPrinter As Printer
'// Set objNewPrinter = Printers(2)
'// SetDefaultPrinter objNewPrinter
Public Function SetDefaultPrinter(objPrn As Printer) As Boolean
Dim x As Long, szTmp As String
szTmp = objPrn.DeviceName & &,& & objPrn.DriverName & &,& & objPrn.Port
x = WriteProfileString(&windows&, &device&, szTmp)
x = SendMessageByString(HWND_BROADCAST, WM_WININICHANGE, 0&, &windows&)
End Function
'// GetDefaultPrinter Function
'// Description:
'// Retuns the device name of the default printer.
'// Syntax:
'// StrVar = GetDefaultPrinter()
'// Example:
'// szDefPrinter = GetDefaultPrinter
Public Function GetDefaultPrinter() As String
Dim x As Long, szTmp As String, dwBuf As Long
dwBuf = 1024
szTmp = Space(dwBuf + 1)
x = GetProfileString(&windows&, &device&, &&, szTmp, dwBuf)
GetDefaultPrinter = Trim(Left(szTmp, x))
End Function
'// ResetDefaultPrinter Function
'// Description:
'// Resets the default printer to the passed device name.
'// Syntax:
'// BOOL = ResetDefaultPrinter(StrVar)
'// Example:
'// szDefPrinter = GetDefaultPrinter()
'// If Not ResetDefaultPrinter(szDefPrinter) Then
MsgBox &Could not reset default printer.&, vbExclamation
'// End If
Public Function ResetDefaultPrinter(szBuf As String) As Boolean
Dim x As Long
x = WriteProfileString(&windows&, &device&, szBuf)
x = SendMessageByString(HWND_BROADCAST, WM_WININICHANGE, 0&, &windows&)
End Function
'// BrowseFolder Function
'// Description:
'// Allows the user to interactively browse and select a folder found in
the file system.
'// Syntax:
'// StrVar = BrowseFolder(hWnd, StrVar)
'// Example:
'// szFilename = BrowseFolder(Me.hWnd, &Browse for application folder:&)
Public Function BrowseFolder(hWnd As Long, szDialogTitle As String) As String
Dim x As Long, BI As BROWSEINFO, dwIList As Long, szPath As String, wPos
As Integer
BI.hOwner = hWnd
BI.lpszTitle = szDialogTitle
BI.ulFlags = BIF_RETURNONLYFSDIRS
dwIList = SHBrowseForFolder(BI)
szPath = Space$(512)
x = SHGetPathFromIDList(ByVal dwIList, ByVal szPath)
wPos = InStr(szPath, Chr(0))
BrowseFolder = Left$(szPath, wPos - 1)
BrowseFolder = &&
End Function
'// DialogConnectToPrinter Function
'// Description:
'// Allows users to interactively selection and connect to local and network
'// Syntax:
'// DialogConnectToPrinter
'// Example:
'// DialogConnectToPrinter
Public Function DialogConnectToPrinter() As Boolean
Shell &rundll32.exe shell32.dll,SHHelpShortcuts_RunDLL AddPrinter&, vbNormalFocus
End Function
'// ByteToString Function
'// Description:
'// Converts an array of bytes into a string
'// Syntax:
'// StrVar = ByteToString(ARRAY)
'// Example:
'// szBuf = BytesToString(aChars(10))
Private Function ByteToString(aBytes() As Byte) As String
Dim dwBytePoint As Long, dwByteVal As Long, szOut As String
dwBytePoint = LBound(aBytes)
While dwBytePoint &= UBound(aBytes)
dwByteVal = aBytes(dwBytePoint)
If dwByteVal = 0 Then
ByteToString = szOut
Exit Function
szOut = szOut & Chr$(dwByteVal)
dwBytePoint = dwBytePoint + 1
ByteToString = szOut
End Function
'// DialogColor Function
'// Description:
'// Displays the Color common dialog box and sets a passed controls foreground
'// Syntax:
'// BOOL = DialogColor(hWnd, CONTROL)
'// Example:
'// Dim yn as Boolean
'// yn = DialogColor(Me.hWnd, txtEditor)
Public Function DialogColor(hWnd As Long, c As Control) As Boolean
Dim x As Long, CS As COLORSTRUC, CustColor(16) As Long
CS.lStructSize = Len(CS)
CS.hWnd = hWnd
CS.hInstance = App.hInstance
CS.Flags = CC_SOLIDCOLOR
CS.lpCustColors = String$(16 * 4, 0)
x = ChooseColor(CS)
If x = 0 Then
DialogColor = False
DialogColor = True
c.ForeColor = CS.rgbResult
End Function
'// DialogFile Function
'// Description:
'// Displays the File Open/Save As common dialog boxes.
'// Syntax:
'// StrVar = DialogFile(hWnd, IntVar, StrVar, StrVar, StrVar, StrVar, StrVar)
'// Example:
'// szFilename = DialogFile(Me.hWnd, 1, &Open&, &MyFileName.doc&, &Documents&
& Chr(0) & &*.doc& & Chr(0) & &All files& & Chr(0) & &*.*&, App.Path, &doc&)
'// Please note that the szFilter var works a bit differently
'// from the filter property associated with the common dialog
'// control. Instead of separating the differents parts of the
'// string with pipe chars, |, you should use null chars, Chr(0),
'// as separators.
Public Function DialogFile(hWnd As Long, wMode As Integer, szDialogTitle
As String, szFilename As String, szFilter As String, szDefDir As String,
szDefExt As String) As String
Dim x As Long, OFN As OPENFILENAME, szFile As String, szFileTitle As
OFN.lStructSize = Len(OFN)
OFN.hWnd = hWnd
OFN.lpstrTitle = szDialogTitle
OFN.lpstrFile = szFilename & String$(250 - Len(szFilename), 0)
OFN.nMaxFile = 255
OFN.lpstrFileTitle = String$(255, 0)
OFN.nMaxFileTitle = 255
OFN.lpstrFilter = szFilter
OFN.nFilterIndex = 1
OFN.lpstrInitialDir = szDefDir
OFN.lpstrDefExt = szDefExt
If wMode = 1 Then
OFN.Flags = OFN_HIDEREADONLY Or OFN_PATHMUSTEXIST Or OFN_FILEMUSTEXIST
x = GetOpenFileName(OFN)
OFN.Flags = OFN_HIDEREADONLY Or OFN_OVERWRITEPROMPT Or OFN_PATHMUSTEXIST
x = GetSaveFileName(OFN)
If x && 0 Then
'// If InStr(OFN.lpstrFileTitle, Chr$(0)) & 0 Then
szFileTitle = Left$(OFN.lpstrFileTitle, InStr(OFN.lpstrFileTitle,
Chr$(0)) - 1)
'// End If
If InStr(OFN.lpstrFile, Chr$(0)) & 0 Then
szFile = Left$(OFN.lpstrFile, InStr(OFN.lpstrFile, Chr$(0)) -
'// OFN.nFileOffset is the number of characters from the beginning
'// full path to the start of the file name
'// OFN.nFileExtension is the number of characters from the beginning
'// full path to the file's extention, including the (.)
'// MsgBox &File Name is & & szFileTitle & Chr$(13) & Chr$(10) &
&Full path and file is & & szFile, , &Open&
'// DialogFile = szFile & &|& & szFileTitle
DialogFile = szFile
DialogFile = &&
End Function
'// DialogFont Function
'// Description:
'// Displays the Font common dialog box and sets a passed controls font properties.
'// Syntax:
'// BOOL = DialogFont(hWnd, CONTROL)
'// Example:
'// Dim yn as Boolean
'// yn = DialogFont(Me.hWnd, txtEditor)
Public Function DialogFont(hWnd As Long, c As Control) As Boolean
Dim LF As LOGFONT, FS As FONTSTRUC
Dim lLogFontAddress As Long, lMemHandle As Long
If c.Font.Bold Then LF.lfWeight = FW_BOLD
If c.Font.Italic = True Then LF.lfItalic = 1
If c.Font.Underline = True Then LF.lfUnderline = 1
FS.lStructSize = Len(FS)
lMemHandle = GlobalAlloc(GHND, Len(LF))
If lMemHandle = 0 Then
DialogFont = False
Exit Function
lLogFontAddress = GlobalLock(lMemHandle)
If lLogFontAddress = 0 Then
DialogFont = False
Exit Function
CopyMemory ByVal lLogFontAddress, LF, Len(LF)
FS.lpLogFont = lLogFontAddress
FS.iPointSize = c.Font.Size * 10
FS.Flags = CF_SCREENFONTS Or CF_EFFECTS
If ChooseFont(FS) = 1 Then
CopyMemory LF, ByVal lLogFontAddress, Len(LF)
If LF.lfWeight &= FW_BOLD Then
c.Font.Bold = True
c.Font.Bold = False
If LF.lfItalic = 1 Then
c.Font.Italic = True
c.Font.Italic = False
If LF.lfUnderline = 1 Then
c.Font.Underline = True
c.Font.Underline = False
c.Font.Name = ByteToString(LF.lfFaceName())
c.Font.Size = CLng(FS.iPointSize / 10)
DialogFont = True
DialogFont = False
End Function
'// DialogPrint Function
'// Description:
'// Displays the Print common dialog box and returns a structure containing
user entered
'// information from the common dialog box.
'// Syntax:
'// PRINTPROPS = DialogPrint(hWnd, BOOL, DWORD)
'// Example:
'// Dim PP As PRINTPROPS
'// PP = DialogPrint(Me.hWnd, True, PD_PAGENUMS or PD_SELECTION or PD_SHOWHELP)
Public Function DialogPrint(hWnd As Long, bPages As Boolean, Flags As Long)
As PRINTPROPS
Dim DM As DEVMODE, PD As PRINTDLGSTRUC
Dim lpDM As Long, wNull As Integer, szDevName As String
PD.lStructSize = Len(PD)
PD.hWnd = hWnd
PD.hDevMode = 0
PD.hDevNames = 0
PD.hDC = 0
PD.Flags = Flags
PD.nFromPage = 0
PD.nToPage = 0
PD.nMinPage = 0
If bPages Then PD.nMaxPage = bPages - 1
PD.nCopies = 0
DialogPrint.Cancel = True
If PrintDlg(PD) Then
lpDM = GlobalLock(PD.hDevMode)
CopyMemory DM, ByVal lpDM, Len(DM)
lpDM = GlobalUnlock(PD.hDevMode)
DialogPrint.Cancel = False
DialogPrint.Device = Left$(DM.dmDeviceName, InStr(DM.dmDeviceName,
Chr(0)) - 1)
DialogPrint.FromPage = 0
DialogPrint.ToPage = 0
DialogPrint.All = True
If PD.Flags And PD_PRINTTOFILE Then DialogPrint.File = True Else
DialogPrint.File = False
If PD.Flags And PD_COLLATE Then DialogPrint.Collate = True Else DialogPrint.Collate
If PD.Flags And PD_PAGENUMS Then
DialogPrint.Pages = True
DialogPrint.All = False
DialogPrint.FromPage = PD.nFromPage
DialogPrint.ToPage = PD.nToPage
DialogPrint.Pages = False
If PD.Flags And PD_SELECTION Then
DialogPrint.Selection = True
DialogPrint.All = False
DialogPrint.Pages = False
If PD.nCopies = 1 Then
DialogPrint.Copies = DM.dmCopies
DialogPrint.DM = DM
End Function
'// DialogPrintSetup Function
'// Description:
'// Displays the Print Setup common dialog box.
'// Syntax:
'// BOOL = DialogPrintSetup(hWnd)
'// Example:
'// If DialogPrintSetup(Me.hWnd) Then
'// End If
Public Function DialogPrintSetup(hWnd As Long) As Boolean
Dim x As Long, PD As PRINTDLGSTRUC
PD.lStructSize = Len(PD)
PD.hWnd = hWnd
PD.Flags = PD_PRINTSETUP
x = PrintDlg(PD)
End Function
&Kunal Sharma& && wrote:
&I'm trying to print an ADOBE PDF file to a network printer. The application
&I am writing needs to continuously keep changing it's default printer. I
&tried using the ShellExecute API Call, but that didn't help since the Default
&Printer in the system was not the default printer of the application.
&Can anyone please point me in the right direction?
Re: Trying to print a PDF File from VB
Each time you need to use set default printer using:...
'// Common Dialogs Module
'// Description:
'// Provides wrapper functions into the various Windows OS common dialog
'// ***************************************************************
Go to Dragon's VB Code Corner for more useful sourcecode:
'// ***************************************************************
'// Author of this module: Unknown
Option Explicit
'// Structures
Private Type OPENFILENAME
lStructSize As Long
hWnd As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
Flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
Private Type COLORSTRUC
lStructSize As Long
hWnd As Long
hInstance As Long
rgbResult As Long
lpCustColors As String
Flags As Long
lCustData As Long
lpfnHook As Long
lpTemplateName As String
Private Const LF_FACESIZE = 32
Private Type LOGFONT
lfHeight As Long
lfWidth As Long
lfEscapement As Long
lfOrientation As Long
lfWeight As Long
lfItalic As Byte
lfUnderline As Byte
lfStrikeOut As Byte
lfCharSet As Byte
lfOutPrecision As Byte
lfClipPrecision As Byte
lfQuality As Byte
lfPitchAndFamily As Byte
lfFaceName(LF_FACESIZE) As Byte
Private Type FONTSTRUC
lStructSize As Long
hWnd As Long
hDC As Long
lpLogFont As Long
iPointSize As Long
Flags As Long
rgbColors As Long
lCustData As Long
lpfnHook As Long
lpTemplateName As String
hInstance As Long
lpszStyle As String
nFontType As Integer
MISSING_ALIGNMENT As Integer
nSizeMin As Long
nSizeMax As Long
Public Type DEVMODE
dmDeviceName As String * 32
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * 32
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFreq As Long
Private Type PRINTDLGSTRUC
lStructSize As Long
hWnd As Long
hDevMode As Long
hDevNames As Long
hDC As Long
Flags As Long
nFromPage As Integer
nToPage As Integer
nMinPage As Integer
nMaxPage As Integer
nCopies As Integer
hInstance As Long
lCustData As Long
lpfnPrintHook As Long
lpfnSetupHook As Long
lpPrintTemplateName As String
lpSetupTemplateName As String
hPrintTemplate As Long
hSetupTemplate As Long
Public Type PRINTPROPS
Cancel As Boolean
Device As String
Copies As Integer
Collate As Boolean
File As Boolean
All As Boolean
Pages As Boolean
Selection As Boolean
FromPage As Integer
ToPage As Integer
DM As DEVMODE
Private Type SHITEMID
cb As Long
abID As Byte
Private Type ITEMIDLIST
mkid As SHITEMID
Private Type BROWSEINFO
hOwner As Long
pidlRoot As Long
pszDisplayName As String
lpszTitle As String
ulFlags As Long
lpfn As Long
lParam As Long
iImage As Long
'// Win32s (Private Functions for Wrappers Below)
Private Declare Function GetOpenFileName Lib &comdlg32.dll& Alias &GetOpenFileNameA&
(pOpenfilename As OPENFILENAME) As Long
Private Declare Function GetSaveFileName Lib &comdlg32.dll& Alias &GetSaveFileNameA&
(pOpenfilename As OPENFILENAME) As Long
Private Declare Function PrintDlg Lib &comdlg32.dll& Alias &PrintDlgA& (pPrintdlg
As PRINTDLGSTRUC) As Long
Private Declare Function ChooseColor Lib &comdlg32.dll& Alias &ChooseColorA&
(pChoosecolor As COLORSTRUC) As Long
Private Declare Function ChooseFont Lib &comdlg32.dll& Alias &ChooseFontA&
(pChoosefont As FONTSTRUC) As Long
Private Declare Function GlobalAlloc Lib &Kernel32& (ByVal wFlags As Long,
ByVal dwBytes As Long) As Long
Private Declare Function GlobalFree Lib &Kernel32& (ByVal hMem As Long) As
Private Declare Function GlobalLock Lib &Kernel32& (ByVal hMem As Long) As
Private Declare Function GlobalUnlock Lib &Kernel32& (ByVal hMem As Long)
Private Declare Sub CopyMemory Lib &Kernel32& Alias &RtlMoveMemory& (hpvDest
As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Declare Function SHGetPathFromIDList Lib &SHELL32.DLL& Alias &SHGetPathFromIDListA&
(ByVal pidl As Long, ByVal pszPath As String) As Long
Private Declare Function SHGetSpecialFolderLocation Lib &SHELL32.DLL& (ByVal
hwndOwner As Long, ByVal nFolder As Long, pidl As ITEMIDLIST) As Long
Private Declare Function SHBrowseForFolder Lib &SHELL32.DLL& Alias &SHBrowseForFolderA&
(lpBrowseInfo As BROWSEINFO) As Long 'ITEMIDLIST
Private Declare Function WriteProfileString Lib &Kernel32& Alias &WriteProfileStringA&
(ByVal lpszSection As String, ByVal lpszKeyName As String, ByVal lpszString
As String) As Long
Private Declare Function GetProfileString Lib &Kernel32& Alias &GetProfileStringA&
(ByVal lpAppName As String, ByVal lpKeyName As String, ByVal lpDefault As
String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long
Private Declare Function SendMessageByString Lib &user32& Alias &SendMessageA&
(ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam
As String) As Long
'// Win32s (Public)
Declare Function WinHelp Lib &user32& Alias &WinHelpA& (ByVal hWnd As Long,
ByVal lpHelpFile As String, ByVal wCommand As Long, ByVal dwData As Any)
Declare Function HTMLHelp Lib &hhctrl.ocx& Alias &HtmlHelpA& (ByVal hWnd
As Long, ByVal szFilename As String, ByVal dwCommand As Long, ByVal dwData
As Any) As Long
'// Constants (Public for Print Dialog Box)
Public Const PD_NOSELECTION = &H4
Public Const PD_DISABLEPRINTTOFILE = &H80000
Public Const PD_PRINTTOFILE = &H20
Public Const PD_RETURNDC = &H100
Public Const PD_RETURNDEFAULT = &H400
Public Const PD_RETURNIC = &H200
Public Const PD_SELECTION = &H1
Public Const PD_SHOWHELP = &H800
Public Const PD_NOPAGENUMS = &H8
Public Const PD_PAGENUMS = &H2
Public Const PD_ALLPAGES = &H0
Public Const PD_COLLATE = &H10
Public Const PD_HIDEPRINTTOFILE = &H100000
'// Constants (Public for WinHelp)
Public Const HELP_COMMAND = &H102&
Public Const HELP_CONTENTS = &H3&
Public Const HELP_CONTEXT = &H1
Public Const HELP_CONTEXTPOPUP = &H8&
Public Const HELP_FORCEFILE = &H9&
Public Const HELP_HELPONHELP = &H4
Public Const HELP_INDEX = &H3
Public Const HELP_KEY = &H101
Public Const HELP_MULTIKEY = &H201&
Public Const HELP_PARTIALKEY = &H105&
Public Const HELP_QUIT = &H2
Public Const HELP_SETCONTENTS = &H5&
Public Const HELP_SETINDEX = &H5
Public Const HELP_SETWINPOS = &H203&
'// Constants (Public for HTMLHelp)
Public Const HH_DISPLAY_TOPIC = &H0&
Public Const HH_HELP_FINDER = &H0&
Public Const HH_DISPLAY_TOC = &H1&
'// Currently Not Implemented
Public Const HH_DISPLAY_INDEX = &H2&
'// Currently Not Implemented
Public Const HH_DISPLAY_SEARCH = &H3& '// Currently Not Implemented
Public Const HH_SET_WIN_TYPE = &H4&
Public Const HH_GET_WIN_TYPE = &H5&
Public Const HH_GET_WIN_HANDLE = &H6&
Public Const HH_ENUM_INFO_TYPE = &H7&
Public Const HH_SET_INFO_TYPE = &H8&
Public Const HH_SYNC = &H9&
Public Const HH_ADD_NAV_UI = &H10&
'// Currently Not Implemented
Public Const HH_ADD_BUTTON = &H11&
'// Currently Not Implemented
Public Const HH_GETBROWSER_APP = &H12& '// Currently Not Implemented
Public Const HH_KEYWORD_LOOKUP = &H13&
Public Const HH_DISPLAY_TEXT_POPUP = &H14&
Public Const HH_HELP_CONTEXT = &H15&
Public Const HH_TP_HELP_CONTEXTMENU = &H16&
Public Const HH_TP_HELP_WM_HELP = &H17&
Public Const HH_CLOSE_ALL = &H18&
Public Const HH_ALINK_LOOKUP = &H19&
Public Const HH_GET_LAST_ERROR = &H20&
'// Currently Not Implemented
Public Const HH_ENUM_CATEGORY = &H21&
Public Const HH_ENUM_CATEGORY_IT = &H22&
Public Const HH_RESET_IT_FILTER = &H23&
Public Const HH_SET_INCLUSIVE_FILTER = &H24&
Public Const HH_SET_EXCLUSIVE_FILTER = &H25&
Public Const HH_SET_GUID = &H26&
Public Const HH_INTERNAL = &H255&
'// Constants (Private)
Private Const FW_BOLD = 700
Private Const GMEM_MOVEABLE = &H2
Private Const GMEM_ZEROINIT = &H40
Private Const GHND = (GMEM_MOVEABLE Or GMEM_ZEROINIT)
Private Const OFN_ALLOWMULTISELECT = &H200
Private Const OFN_CREATEPROMPT = &H2000
Private Const OFN_ENABLEHOOK = &H20
Private Const OFN_ENABLETEMPLATE = &H40
Private Const OFN_ENABLETEMPLATEHANDLE = &H80
Private Const OFN_EXPLORER = &H80000
Private Const OFN_EXTENSIONDIFFERENT = &H400
Private Const OFN_FILEMUSTEXIST = &H1000
Private Const OFN_HIDEREADONLY = &H4
Private Const OFN_LONGNAMES = &H200000
Private Const OFN_NOCHANGEDIR = &H8
Private Const OFN_NODEREFERENCELINKS = &H100000
Private Const OFN_NOLONGNAMES = &H40000
Private Const OFN_NONETWORKBUTTON = &H20000
Private Const OFN_NOREADONLYRETURN = &H8000
Private Const OFN_NOTESTFILECREATE = &H10000
Private Const OFN_NOVALIDATE = &H100
Private Const OFN_OVERWRITEPROMPT = &H2
Private Const OFN_PATHMUSTEXIST = &H800
Private Const OFN_READONLY = &H1
Private Const OFN_SHAREAWARE = &H4000
Private Const OFN_SHAREFALLTHROUGH = 2
Private Const OFN_SHARENOWARN = 1
Private Const OFN_SHAREWARN = 0
Private Const OFN_SHOWHELP = &H10
Private Const PD_ENABLEPRINTHOOK = &H1000
Private Const PD_ENABLEPRINTTEMPLATE = &H4000
Private Const PD_ENABLEPRINTTEMPLATEHANDLE = &H10000
Private Const PD_ENABLESETUPHOOK = &H2000
Private Const PD_ENABLESETUPTEMPLATE = &H8000
Private Const PD_ENABLESETUPTEMPLATEHANDLE = &H20000
Private Const PD_NONETWORKBUTTON = &H200000
Private Const PD_PRINTSETUP = &H40
Private Const PD_USEDEVMODECOPIES = &H40000
Private Const PD_USEDEVMODECOPIESANDCOLLATE = &H40000
Private Const PD_NOWARNING = &H80
Private Const CF_ANSIONLY = &H400&
Private Const CF_APPLY = &H200&
Private Const CF_BITMAP = 2
Private Const CF_PRINTERFONTS = &H2
Private Const CF_PRIVATEFIRST = &H200
Private Const CF_PRIVATELAST = &H2FF
Private Const CF_RIFF = 11
Private Const CF_SCALABLEONLY = &H20000
Private Const CF_SCREENFONTS = &H1
Private Const CF_BOTH = (CF_SCREENFONTS Or CF_PRINTERFONTS)
Private Const CF_DIB = 8
Private Const CF_DIF = 5
Private Const CF_DSPBITMAP = &H82
Private Const CF_DSPENHMETAFILE = &H8E
Private Const CF_DSPMETAFILEPICT = &H83
Private Const CF_DSPTEXT = &H81
Private Const CF_EFFECTS = &H100&
Private Const CF_ENABLEHOOK = &H8&
Private Const CF_ENABLETEMPLATE = &H10&
Private Const CF_ENABLETEMPLATEHANDLE = &H20&
Private Const CF_ENHMETAFILE = 14
Private Const CF_FIXEDPITCHONLY = &H4000&
Private Const CF_FORCEFONTEXIST = &H10000
Private Const CF_GDIOBJFIRST = &H300
Private Const CF_GDIOBJLAST = &H3FF
Private Const CF_INITTOLOGFONTSTRUCT = &H40&
Private Const CF_LIMITSIZE = &H2000&
Private Const CF_METAFILEPICT = 3
Private Const CF_NOFACESEL = &H80000
Private Const CF_NOVERTFONTS = &H1000000
Private Const CF_NOVECTORFONTS = &H800&
Private Const CF_NOOEMFONTS = CF_NOVECTORFONTS
Private Const CF_NOSCRIPTSEL = &H800000
Private Const CF_NOSIMULATIONS = &H1000&
Private Const CF_NOSIZESEL = &H200000
Private Const CF_NOSTYLESEL = &H100000
Private Const CF_OEMTEXT = 7
Private Const CF_OWNERDISPLAY = &H80
Private Const CF_PALETTE = 9
Private Const CF_PENDATA = 10
Private Const CF_SCRIPTSONLY = CF_ANSIONLY
Private Const CF_SELECTSCRIPT = &H400000
Private Const CF_SHOWHELP = &H4&
Private Const CF_SYLK = 4
Private Const CF_TEXT = 1
Private Const CF_TIFF = 6
Private Const CF_TTONLY = &H40000
Private Const CF_UNICODETEXT = 13
Private Const CF_USESTYLE = &H80&
Private Const CF_WAVE = 12
Private Const CF_WYSIWYG = &H8000
Private Const CFERR_CHOOSEFONTCODES = &H2000
Private Const CFERR_MAXLESSTHANMIN = &H2002
Private Const CFERR_NOFONTS = &H2001
Private Const CC_ANYCOLOR = &H100
Private Const CC_CHORD = 4
Private Const CC_CIRCLES = 1
Private Const CC_ELLIPSES = 8
Private Const CC_ENABLEHOOK = &H10
Private Const CC_ENABLETEMPLATE = &H20
Private Const CC_ENABLETEMPLATEHANDLE = &H40
Private Const CC_FULLOPEN = &H2
Private Const CC_INTERIORS = 128
Private Const CC_NONE = 0
Private Const CC_PIE = 2
Private Const CC_PREVENTFULLOPEN = &H4
Private Const CC_RGBINIT = &H1
Private Const CC_ROUNDRECT = 256 '
Private Const CC_SHOWHELP = &H8
Private Const CC_SOLIDCOLOR = &H80
Private Const CC_STYLED = 32
Private Const CC_WIDE = 16
Private Const CC_WIDESTYLED = 64
Private Const CCERR_CHOOSECOLORCODES = &H5000
Private Const LOGPIXELSY = 90
Private Const CCHDEVICENAME = 32
Private Const CCHFORMNAME = 32
Private Const SIMULATED_FONTTYPE = &H8000
Private Const PRINTER_FONTTYPE = &H4000
Private Const SCREEN_FONTTYPE = &H2000
Private Const BOLD_FONTTYPE = &H100
Private Const ITALIC_FONTTYPE = &H200
Private Const REGULAR_FONTTYPE = &H400
Private Const WM_CHOOSEFONT_GETLOGFONT = (&H400 + 1)
Private Const LBSELCHSTRING = &commdlg_LBSelChangedNotify&
Private Const SHAREVISTRING = &commdlg_ShareViolation&
Private Const FILEOKSTRING = &commdlg_FileNameOK&
Private Const COLOROKSTRING = &commdlg_ColorOK&
Private Const SETRGBSTRING = &commdlg_SetRGBColor&
Private Const FINDMSGSTRING = &commdlg_FindReplace&
Private Const HELPMSGSTRING = &commdlg_help&
Private Const CD_LBSELNOITEMS = -1
Private Const CD_LBSELCHANGE = 0
Private Const CD_LBSELSUB = 1
Private Const CD_LBSELADD = 2
Private Const NOERROR = 0
Private Const CSIDL_DESKTOP = &H0
Private Const CSIDL_PROGRAMS = &H2
Private Const CSIDL_CONTROLS = &H3
Private Const CSIDL_PRINTERS = &H4
Private Const CSIDL_PERSONAL = &H5
Private Const CSIDL_FAVORITES = &H6
Private Const CSIDL_STARTUP = &H7
Private Const CSIDL_RECENT = &H8
Private Const CSIDL_SENDTO = &H9
Private Const CSIDL_BITBUCKET = &HA
Private Const CSIDL_STARTMENU = &HB
Private Const CSIDL_DESKTOPDIRECTORY = &H10
Private Const CSIDL_DRIVES = &H11
Private Const CSIDL_NETWORK = &H12
Private Const CSIDL_NETHOOD = &H13
Private Const CSIDL_FONTS = &H14
Private Const CSIDL_TEMPLATES = &H15
Private Const BIF_RETURNONLYFSDIRS = &H1
Private Const BIF_DONTGOBELOWDOMAIN = &H2
Private Const BIF_STATUSTEXT = &H4
Private Const BIF_RETURNFSANCESTORS = &H8
Private Const BIF_BROWSEFORCOMPUTER = &H1000
Private Const BIF_BROWSEFORPRINTER = &H2000
Private Const HWND_BROADCAST = &HFFFF&
Private Const WM_WININICHANGE = &H1A
'// SetDefaultPrinter Function
'// Description:
'// Sets the user's default printer to the printer represented by the passed
printer object.
'// Syntax:
'// BOOL = SetDefaultPrinter(object)
'// Example:
'// Dim objNewPrinter As Printer
'// Set objNewPrinter = Printers(2)
'// SetDefaultPrinter objNewPrinter
Public Function SetDefaultPrinter(objPrn As Printer) As Boolean
Dim x As Long, szTmp As String
szTmp = objPrn.DeviceName & &,& & objPrn.DriverName & &,& & objPrn.Port
x = WriteProfileString(&windows&, &device&, szTmp)
x = SendMessageByString(HWND_BROADCAST, WM_WININICHANGE, 0&, &windows&)
End Function
'// GetDefaultPrinter Function
'// Description:
'// Retuns the device name of the default printer.
'// Syntax:
'// StrVar = GetDefaultPrinter()
'// Example:
'// szDefPrinter = GetDefaultPrinter
Public Function GetDefaultPrinter() As String
Dim x As Long, szTmp As String, dwBuf As Long
dwBuf = 1024
szTmp = Space(dwBuf + 1)
x = GetProfileString(&windows&, &device&, &&, szTmp, dwBuf)
GetDefaultPrinter = Trim(Left(szTmp, x))
End Function
'// ResetDefaultPrinter Function
'// Description:
'// Resets the default printer to the passed device name.
'// Syntax:
'// BOOL = ResetDefaultPrinter(StrVar)
'// Example:
'// szDefPrinter = GetDefaultPrinter()
'// If Not ResetDefaultPrinter(szDefPrinter) Then
MsgBox &Could not reset default printer.&, vbExclamation
'// End If
Public Function ResetDefaultPrinter(szBuf As String) As Boolean
Dim x As Long
x = WriteProfileString(&windows&, &device&, szBuf)
x = SendMessageByString(HWND_BROADCAST, WM_WININICHANGE, 0&, &windows&)
End Function
'// BrowseFolder Function
'// Description:
'// Allows the user to interactively browse and select a folder found in
the file system.
'// Syntax:
'// StrVar = BrowseFolder(hWnd, StrVar)
'// Example:
'// szFilename = BrowseFolder(Me.hWnd, &Browse for application folder:&)
Public Function BrowseFolder(hWnd As Long, szDialogTitle As String) As String
Dim x As Long, BI As BROWSEINFO, dwIList As Long, szPath As String, wPos
As Integer
BI.hOwner = hWnd
BI.lpszTitle = szDialogTitle
BI.ulFlags = BIF_RETURNONLYFSDIRS
dwIList = SHBrowseForFolder(BI)
szPath = Space$(512)
x = SHGetPathFromIDList(ByVal dwIList, ByVal szPath)
wPos = InStr(szPath, Chr(0))
BrowseFolder = Left$(szPath, wPos - 1)
BrowseFolder = &&
End Function
'// DialogConnectToPrinter Function
'// Description:
'// Allows users to interactively selection and connect to local and network
'// Syntax:
'// DialogConnectToPrinter
'// Example:
'// DialogConnectToPrinter
Public Function DialogConnectToPrinter() As Boolean
Shell &rundll32.exe shell32.dll,SHHelpShortcuts_RunDLL AddPrinter&, vbNormalFocus
End Function
'// ByteToString Function
'// Description:
'// Converts an array of bytes into a string
'// Syntax:
'// StrVar = ByteToString(ARRAY)
'// Example:
'// szBuf = BytesToString(aChars(10))
Private Function ByteToString(aBytes() As Byte) As String
Dim dwBytePoint As Long, dwByteVal As Long, szOut As String
dwBytePoint = LBound(aBytes)
While dwBytePoint &= UBound(aBytes)
dwByteVal = aBytes(dwBytePoint)
If dwByteVal = 0 Then
ByteToString = szOut
Exit Function
szOut = szOut & Chr$(dwByteVal)
dwBytePoint = dwBytePoint + 1
ByteToString = szOut
End Function
'// DialogColor Function
'// Description:
'// Displays the Color common dialog box and sets a passed controls foreground
'// Syntax:
'// BOOL = DialogColor(hWnd, CONTROL)
'// Example:
'// Dim yn as Boolean
'// yn = DialogColor(Me.hWnd, txtEditor)
Public Function DialogColor(hWnd As Long, c As Control) As Boolean
Dim x As Long, CS As COLORSTRUC, CustColor(16) As Long
CS.lStructSize = Len(CS)
CS.hWnd = hWnd
CS.hInstance = App.hInstance
CS.Flags = CC_SOLIDCOLOR
CS.lpCustColors = String$(16 * 4, 0)
x = ChooseColor(CS)
If x = 0 Then
DialogColor = False
DialogColor = True
c.ForeColor = CS.rgbResult
End Function
'// DialogFile Function
'// Description:
'// Displays the File Open/Save As common dialog boxes.
'// Syntax:
'// StrVar = DialogFile(hWnd, IntVar, StrVar, StrVar, StrVar, StrVar, StrVar)
'// Example:
'// szFilename = DialogFile(Me.hWnd, 1, &Open&, &MyFileName.doc&, &Documents&
& Chr(0) & &*.doc& & Chr(0) & &All files& & Chr(0) & &*.*&, App.Path, &doc&)
'// Please note that the szFilter var works a bit differently
'// from the filter property associated with the common dialog
'// control. Instead of separating the differents parts of the
'// string with pipe chars, |, you should use null chars, Chr(0),
'// as separators.
Public Function DialogFile(hWnd As Long, wMode As Integer, szDialogTitle
As String, szFilename As String, szFilter As String, szDefDir As String,
szDefExt As String) As String
Dim x As Long, OFN As OPENFILENAME, szFile As String, szFileTitle As
OFN.lStructSize = Len(OFN)
OFN.hWnd = hWnd
OFN.lpstrTitle = szDialogTitle
OFN.lpstrFile = szFilename & String$(250 - Len(szFilename), 0)
OFN.nMaxFile = 255
OFN.lpstrFileTitle = String$(255, 0)
OFN.nMaxFileTitle = 255
OFN.lpstrFilter = szFilter
OFN.nFilterIndex = 1
OFN.lpstrInitialDir = szDefDir
OFN.lpstrDefExt = szDefExt
If wMode = 1 Then
OFN.Flags = OFN_HIDEREADONLY Or OFN_PATHMUSTEXIST Or OFN_FILEMUSTEXIST
x = GetOpenFileName(OFN)
OFN.Flags = OFN_HIDEREADONLY Or OFN_OVERWRITEPROMPT Or OFN_PATHMUSTEXIST
x = GetSaveFileName(OFN)
If x && 0 Then
'// If InStr(OFN.lpstrFileTitle, Chr$(0)) & 0 Then
szFileTitle = Left$(OFN.lpstrFileTitle, InStr(OFN.lpstrFileTitle,
Chr$(0)) - 1)
'// End If
If InStr(OFN.lpstrFile, Chr$(0)) & 0 Then
szFile = Left$(OFN.lpstrFile, InStr(OFN.lpstrFile, Chr$(0)) -
'// OFN.nFileOffset is the number of characters from the beginning
'// full path to the start of the file name
'// OFN.nFileExtension is the number of characters from the beginning
'// full path to the file's extention, including the (.)
'// MsgBox &File Name is & & szFileTitle & Chr$(13) & Chr$(10) &
&Full path and file is & & szFile, , &Open&
'// DialogFile = szFile & &|& & szFileTitle
DialogFile = szFile
DialogFile = &&
End Function
'// DialogFont Function
'// Description:
'// Displays the Font common dialog box and sets a passed controls font properties.
'// Syntax:
'// BOOL = DialogFont(hWnd, CONTROL)
'// Example:
'// Dim yn as Boolean
'// yn = DialogFont(Me.hWnd, txtEditor)
Public Function DialogFont(hWnd As Long, c As Control) As Boolean
Dim LF As LOGFONT, FS As FONTSTRUC
Dim lLogFontAddress As Long, lMemHandle As Long
If c.Font.Bold Then LF.lfWeight = FW_BOLD
If c.Font.Italic = True Then LF.lfItalic = 1
If c.Font.Underline = True Then LF.lfUnderline = 1
FS.lStructSize = Len(FS)
lMemHandle = GlobalAlloc(GHND, Len(LF))
If lMemHandle = 0 Then
DialogFont = False
Exit Function
lLogFontAddress = GlobalLock(lMemHandle)
If lLogFontAddress = 0 Then
DialogFont = False
Exit Function
CopyMemory ByVal lLogFontAddress, LF, Len(LF)
FS.lpLogFont = lLogFontAddress
FS.iPointSize = c.Font.Size * 10
FS.Flags = CF_SCREENFONTS Or CF_EFFECTS
If ChooseFont(FS) = 1 Then
CopyMemory LF, ByVal lLogFontAddress, Len(LF)
If LF.lfWeight &= FW_BOLD Then
c.Font.Bold = True
c.Font.Bold = False
If LF.lfItalic = 1 Then
c.Font.Italic = True
c.Font.Italic = False
If LF.lfUnderline = 1 Then
c.Font.Underline = True
c.Font.Underline = False
c.Font.Name = ByteToString(LF.lfFaceName())
c.Font.Size = CLng(FS.iPointSize / 10)
DialogFont = True
DialogFont = False
End Function
'// DialogPrint Function
'// Description:
'// Displays the Print common dialog box and returns a structure containing
user entered
'// information from the common dialog box.
'// Syntax:
'// PRINTPROPS = DialogPrint(hWnd, BOOL, DWORD)
'// Example:
'// Dim PP As PRINTPROPS
'// PP = DialogPrint(Me.hWnd, True, PD_PAGENUMS or PD_SELECTION or PD_SHOWHELP)
Public Function DialogPrint(hWnd As Long, bPages As Boolean, Flags As Long)
As PRINTPROPS
Dim DM As DEVMODE, PD As PRINTDLGSTRUC
Dim lpDM As Long, wNull As Integer, szDevName As String
PD.lStructSize = Len(PD)
PD.hWnd = hWnd
PD.hDevMode = 0
PD.hDevNames = 0
PD.hDC = 0
PD.Flags = Flags
PD.nFromPage = 0
PD.nToPage = 0
PD.nMinPage = 0
If bPages Then PD.nMaxPage = bPages - 1
PD.nCopies = 0
DialogPrint.Cancel = True
If PrintDlg(PD) Then
lpDM = GlobalLock(PD.hDevMode)
CopyMemory DM, ByVal lpDM, Len(DM)
lpDM = GlobalUnlock(PD.hDevMode)
DialogPrint.Cancel = False
DialogPrint.Device = Left$(DM.dmDeviceName, InStr(DM.dmDeviceName,
Chr(0)) - 1)
DialogPrint.FromPage = 0
DialogPrint.ToPage = 0
DialogPrint.All = True
If PD.Flags And PD_PRINTTOFILE Then DialogPrint.File = True Else
DialogPrint.File = False
If PD.Flags And PD_COLLATE Then DialogPrint.Collate = True Else DialogPrint.Collate
If PD.Flags And PD_PAGENUMS Then
DialogPrint.Pages = True
DialogPrint.All = False
DialogPrint.FromPage = PD.nFromPage
DialogPrint.ToPage = PD.nToPage
DialogPrint.Pages = False
If PD.Flags And PD_SELECTION Then
DialogPrint.Selection = True
DialogPrint.All = False
DialogPrint.Pages = False
If PD.nCopies = 1 Then
DialogPrint.Copies = DM.dmCopies
DialogPrint.DM = DM
End Function
'// DialogPrintSetup Function
'// Description:
'// Displays the Print Setup common dialog box.
'// Syntax:
'// BOOL = DialogPrintSetup(hWnd)
'// Example:
'// If DialogPrintSetup(Me.hWnd) Then
'// End If
Public Function DialogPrintSetup(hWnd As Long) As Boolean
Dim x As Long, PD As PRINTDLGSTRUC
PD.lStructSize = Len(PD)
PD.hWnd = hWnd
PD.Flags = PD_PRINTSETUP
x = PrintDlg(PD)
End Function
&Kunal Sharma& && wrote:
&I'm trying to print an ADOBE PDF file to a network printer. The application
&I am writing needs to continuously keep changing it's default printer. I
&tried using the ShellExecute API Call, but that didn't help since the Default
&Printer in the system was not the default printer of the application.
&Can anyone please point me in the right direction?
Questions?
&&&Development Centers