PeekMessage in AbortProc |
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Win32Fan
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hello !
I am reading <Programming Windows >(Charles Petzold). :Chapter 13 _Using the Printer. BOOL CALLBACK AbortProc (HDC hdcPrn, int iCode) { MSG msg ; while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE)) { TranslateMessage (&msg) ; DispatchMessage (&msg) ; } return TRUE ; } The MSDN(6.0) said : “If the iError parameter is SP_OUTOFDISK, the application need not cancel the print job. If it does not cancel the job, it must yield to Print Manager by calling the PeekMessage or GetMessage function.” I want to ask :
Why is the PeekMessage or GetMessage necessary ? What is its use in this function? //Note: I live in the '.cn' . I worried the 'GB2312' font is supported not here. But you can answer me using your font .
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Win32Fan |
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