PrintDlgEx

_Superman_

Hi, I'm working on Windows 2000 and VC++ 6.0. I need to show the new print property sheet available in windows 2000 onwards. I found a class called CPrintDialogEx that could display it but unfortunately it is available only in VC 7.0. So I did the following to get the property sheet - I created a dialog based application. The following is in the .h file of the dialog class

typedef struct tagPRINTPAGERANGE {
DWORD nFromPage;
DWORD nToPage;
} PRINTPAGERANGE, *LPPRINTPAGERANGE;

typedef struct tagPDEX {
DWORD lStructSize;
HWND hwndOwner;
HGLOBAL hDevMode;
HGLOBAL hDevNames;
HDC hDC;
DWORD Flags;
DWORD Flags2;
DWORD ExclusionFlags;
DWORD nPageRanges;
DWORD nMaxPageRanges;
LPPRINTPAGERANGE lpPageRanges;
DWORD nMinPage;
DWORD nMaxPage;
DWORD nCopies;
HINSTANCE hInstance;
LPCTSTR lpPrintTemplateName;
LPUNKNOWN lpCallback;
DWORD nPropertyPages;
HPROPSHEETPAGE *lphPropertyPages;
DWORD nStartPage;
DWORD dwResultAction;
} PRINTDLGEX, *LPPRINTDLGEX;

In a button click handler the following code is done -

typedef HRESULT (\*Print)(LPPRINTDLGEX lppd);

HMODULE hMod = LoadLibrary("C:\\\\WINNT\\\\system32\\\\comdlg32.dll");
Print prn = (Print)GetProcAddress(hMod, "PrintDlgExA");

PRINTDLGEX stprn;
memset(&stprn, 0, sizeof PRINTDLGEX);

stprn.lStructSize = sizeof PRINTDLGEX;
stprn.hwndOwner = m\_hWnd;
stprn.nCopies = 1;
stprn.Flags = PD\_ALLPAGES|PD\_USEDEVMODECOPIES|PD\_HIDEPRINTTOFILE|PD\_NOPAGENUMS|PD\_NOSELECTION|0x00800000;
stprn.Flags &= ~PD\_RETURNIC;
stprn.nStartPage = -1;
stprn.dwResultAction = 0;

prn(&stprn);

Now the dialog is displayed but on closing the dialog it breaks. I suspect it to be the wrong parameter used as the callback routine in the stprn.lpCallback parameter of the structure. I tried giving many other parameters for the callback function, but in vain Has anybody done this or does anybody have an idea as to what I must do, please reply. Regards Santosh « Superman »