Microsoft KB Archive/104789

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DOC: WM_TIMER Case on Page 94 of Guide to Programming

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Q104789

3.10 WINDOWS kbprg kbdocerr

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The information in this article applies to:


 * Microsoft Windows Software Development Kit (SDK) 3.1

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SUMMARY
Section 4.2.13, page 94, of the Windows SDK "Guide to Programming" manual shows how to add WM_TIMER processing to a window procedure. The code in the book is actually WM_LBUTTONDBLCLK. This is an error.

Chapter 4 of the "Guide to Programming" manual builds a sample program called input. The correct WM_TIMER case is found within INPUT.C, which is in the \GUIDE\INPUT directory of the Windows SDK directory. If this is a Visual C++ installation, INPUT.C will be in the \SAMPLES\INPUT directory.

The correct code is listed below:

  case WM_TIMER:

wsprintf(TimerText, "WM_TIMER: %d seconds", nTimerCount += 5); InvalidateRect(hWnd, &rectTimer, TRUE); break; Additional query words: 3.10

Keywords : kbdocfix kb16bitonly kbSDKPlatform kbWndw kbWndwMsg

Issue type :

Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310