WM_QUEUESYNC message
Sent by a computer-based training (CBT) application to separate user-input messages from other messages sent through the WH_JOURNALPLAYBACK procedure.
#define WM_QUEUESYNC 0x0023
Parameters
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wParam
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This parameter is not used.
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lParam
-
This parameter is not used.
Return value
Type: void
A CBT application should return zero if it processes this message.
Remarks
Whenever a CBT application uses the WH_JOURNALPLAYBACK procedure, the first and last messages are WM_QUEUESYNC. This allows the CBT application to intercept and examine user-initiated messages without doing so for events that it sends.
If an application specifies a NULL window handle, the message is posted to the message queue of the active window.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
See also
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Reference
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Conceptual