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WIN3PRT.ASC
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1992-01-24
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49 lines
_PRINTING FROM WINDOWS 3_
by Michael J. Young
[Example 1]
BOOL FAR PASCAL AbortProc (HDC HPrnDC,short Code)
{
MSG Msg;
while (!UserAbort && PeekMessage (&Msg,NULL,0,0,PM_REMOVE))
{
TranslateMessage (&Msg);
DispatchMessage (&Msg);
}
return (!UserAbort);
} // end AbortProc
[Example 2]
HWND HAbortButton;
HANDLE HInst;
HDC HPrnDC;
BOOL InPrintJob = FALSE;
FARPROC PtrAbortProc;
BOOL UserAbort;
.
.
.
if (InPrintJob)
return (NULL);
HPrnDC = GetPrnDC ();
ShowWindow (HAbortButton,SW_SHOW);
UserAbort = FALSE;
InPrintJob = TRUE;
PtrAbortProc = MakeProcInstance (AbortProc,HInst);
Escape (HPrnDC,SETABORTPROC,0,(LPSTR)PtrAbortProc,NULL);
Escape (HPrnDC,STARTDOC,10,(LPSTR)"Print Demo",0L);
// Calls to GDI output functions, such as TextOut and Ellipse go here.
Escape (HPrnDC,NEWFRAME,0,0L,0L);
Escape (HPrnDC,ENDDOC,0,0L,0L);
FreeProcInstance (PtrAbortProc);
InPrintJob = FALSE;
ShowWindow (HAbortButton,SW_HIDE);
DeleteDC (HPrnDC);