INFO: Windows WM_SYSTIMER Message Is an Undocumented Message |
Q108938
The information in this article applies to:
- Microsoft Win32 Software Development Kit (SDK)
- Microsoft Windows Software Development Kit (SDK) 3.1
SUMMARY
The WM_SYSTIMER message in Windows is an undocumented system message; it should not be trapped or relied on by an application. This message can occasionally be viewed in Spy or in CodeView while debugging.
Windows uses the WM_SYSTIMER message internally to control the scroll rate of highlighted text (text selected by the user) in edit controls, or highlighted items in list boxes.
NOTE: The WM_SYSTIMER message is for Windows's internal use only and can be changed without prior notice.
Additional query words:
Keywords : kbOSWinNT kbGrpDSUser kbOSWin kbWndw kbWndwMsg
Issue type : kbinfo
Technology : kbWin32SDKSearch kbAudDeveloper kbWin3xSearch kbSDKSearch kbWin32sSearch kbWinSDKSearch kbWinSDK310
Last Reviewed: December 10, 1999 |
