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capSetCallbackOnError

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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