Microsoft KB Archive/182809

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FIX: BroadcastSystemMessageA Not Found in User32.dll on Win 95

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Q182809

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The information in this article applies to:


 * Microsoft Win32 Software Development Kit (SDK), used with:
 * Microsoft Windows 95

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SYMPTOMS
When an application running under Windows 95 calls BroadcastSystemMessage, the application fails with the following error:

BroadcastSystemMessageA not found in User32.dll.

CAUSE
The WINUSER.H header file contains the following code:

  #ifdef UNICODE #define BroadcastSystemMessage BroadcastSystemMessageW #else #define BroadcastSystemMessage BroadcastSystemMessageA #endif The error occurs under Windows 95 because BroadcastSystemMessageA is not exported by USER32.DLL. The same code works as expected under Windows 98 and Windows NT since both BroadcastSystemMessage and BroadcastSystemMessageA are exported by USER32.DLL.

RESOLUTION
Use the following code to call BroadcastSystemMessage instead of BroadcastSystemMessageA:

  #include 

#ifdef BroadcastSystemMessage #undef BroadcastSystemMessage #define BroadcastSystemMessage BroadcastSystemMessage #endif

STATUS
This bug was corrected in Windows 98 and later by exporting both BroadcastSystemMessage and BroadcastSystemMessageA from USER32.DLL.

Additional query words: User32.dll

Keywords : kbOSWin2000fix kbSDKWin32 kbGrpDSUser kbOSWin95 kbOSWin98fix kbWndwMsg kbshell

Issue type : kbbug

Technology : kbWin32SDKSearch kbAudDeveloper kbSDKSearch kbWin32sSearch