capSetCallbackOnError

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The capSetCallbackOnError macro sets an error callback function in the client application. AVICap calls this procedure when errors occur. You can use this macro or explicitly call the WM_CAP_SET_CALLBACK_ERROR message.

BOOL capSetCallbackOnError(

hwnd,
fpProc
);

Parameters
hwnd

Handle of a capture window.

fpProc

Address of the error callback function. Specify NULL for this parameter to disable a previously installed error callback function.

Return Values
Returns TRUE if successful or FALSE if streaming capture or a single-frame capture session is in progress.

Remarks
Applications can optionally set an error callback function. If set, AVICap calls the error procedure in the following situations:

The disk is full.
A capture window cannot be connected with a capture driver.
A waveform-audio device cannot be opened.
The number of frames dropped during capture exceeds the specified percentage.
The frames cannot be captured due to vertical synchronization interrupt problems.

See Also
WM_CAP_SET_CALLBACK_ERROR

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