capCaptureSequenceNoFile - Win32 Multimedia Programmer's Reference

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capCaptureSequenceNoFile

The capCaptureSequenceNoFile macro initiates streaming video capture without writing data to a file. You can use this macro or explicitly send the WM_CAP_SEQUENCE_NOFILE message.

BOOL capCaptureSequenceNoFile(

hwnd
);

Parameters
hwnd

Handle of a capture window.

Return Values
Returns TRUE if successful or FALSE otherwise.

Remarks
This message is useful in conjunction with video stream or waveform-audio stream callback functions that let your application use the video and audio data directly.

If you want to alter the parameters controlling streaming capture, use the capCaptureSetSetup macro prior to starting the capture.

By default, the capture window does not allow other applications to continue running during capture. To override this, either set the fYield member of the CAPTUREPARMS structure to TRUE, or install a yield callback function.

During streaming capture, the capture window can optionally issue notifications to your application of specific types of conditions. To install callback procedures for these notifications, use the following macros:

capSetCallbackOnError
capSetCallbackOnStatus
capSetCallbackOnVideoStream
capSetCallbackOnWaveStream
capSetCallbackOnYield
See Also
capCaptureSetSetup, capSetCallbackOnError, capSetCallbackOnStatus, capSetCallbackOnVideoStream, capSetCallbackOnWaveStream, capSetCallbackOnYield, CAPTUREPARMS, WM_CAP_SEQUENCE_NOFILE

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