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RE: Windows version of Unix lpr program doesn't work?
- To: gnu-win32 at cygnus dot com
- Subject: RE: Windows version of Unix lpr program doesn't work?
- From: vtailor at gte dot net
- Date: Tue, 2 Jun 1998 18:56:50 -0500 (CDT)
- Cc: vtailor at gte dot net
> Colin Peters (firstname.lastname@example.org)
> Tue, 2 Jun 1998 19:51:18 +0900
>>The reason that the PrintDlg() call fails under __WIN32__ is that
>>sizeof(PRINTDLG) == 68, but the operating system gives an error
>>message unless you set the pd.lStructSize member to 66. This, of
>>course, doesn't happen in the 16-bit Windows 3.x version. Once
>>you get the PrintDlg() call to work, you then discover that all
>>succeeding calls to Escape and TextOut succeed, but the program
>>still fails to print. Oh yes, Borland C++ Builder for Windows 95
>>gives similar results, and substituting more modern calls doesn't
>>seem to make any difference.
>The sizeof(PRINTDLG) will give 66 if you modify the Win32 headers to make
>the PRINTDLG structure
>packed. I did this by changing the line of Windows32/Structures.h
>} PRINTDLG, *LPPRINTDLG;
>typedef struct tagPD PRINTDLG, *LPPRINTDLG;
>Where I had earlier defined PACKED to be __attribute__((packed)) in
>Perhaps this will fix the problem?
I tried what you suggested, and the call to PrintDlg() succeeded. Then,
all subsequent calls to TextOut and Escape also succeeded, but 32-bit
printing failed. That brings MINGW32 up to par with Borland Builder C++.
Somewhere in the Microsoft Windows 32 helpfile, there is a statement about
compiling these printer calls for Windows 95 with sizeof(int) == 2. That
may be the key to the problem, since the 16-bit code works like a charm.
How exactly does one go about setting sizeof(int) == 2 in a Windows 95
compiler, I wonder?
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