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(
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hwnd |
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); |
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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