From: vtailor AT gte DOT net
Subject: RE: Windows version of Unix lpr program doesn't work?
4 Jun 1998 13:53:43 -0700
Message-ID: <199806040225.VAA00825.cygnus.gnu-win32@smtp1.mailsrvcs.net>
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To: gnu-win32 AT cygnus DOT com
Cc: vtailor AT gte DOT net

>   vtailor AT gte DOT net
>   Tue, 2 Jun 1998 18:56:50 -0500 (CDT)
>   
>>   Colin Peters (colin AT fu DOT is DOT saga-u DOT ac DOT jp)
>>   Tue, 2 Jun 1998 19:51:18 +0900
>>
>>vtailor AT gte DOT net  wrote:
>>>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;
>>
>>To
>>
>>} PACKED;
>>
>>typedef struct tagPD PRINTDLG, *LPPRINTDLG;
>>
>>Where I had earlier defined PACKED to be __attribute__((packed)) in
>>Windows32/Defines.h
>>
>>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++.
>
I have another piece of the puzzle.  If you initialize the PRINTDLG
structure sent to the PrintDlg() call as follows

 pd.Flags = (DWORD)(PD_RETURNDC | PD_PAGENUMS);

the 16-bit program gives you a dialog box in which the `Pages' button
is checked, while the 32-bit MINGW32 version gives you a dialog box in
which `All' is checked, and `Pages' is disabled.

There seems to be a slip 'twixt the cup and the lip somewhere.

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