Can capture properties be changed programly?

Hi,
I'v written a test app to do the screen recording. The capture frame rate was set by IltmmCapture::put_FrameRate to 10 fps ( This one seems don't affect the final file header setting)

I found that when doing a playback with the video I just captured, it alway plays faster than expected speed(say recording for 10 secs, but playback only takes about 3 or 4 secs, the frame rate is roughly about 30 fps). Also in the cpp demo "capture" go with the SDK, the frame rate can be set by a capture properties dialog( by calling IltmmCapture::ShowDialog with ltmmCapture_Dlg_Capture) and seems this is proper way to set the playback speed. So, I just wonder is there any way to change the capture properties(like framerate and cursor settings) programly instead of popup a setting dialog?

Any hints would be appreciated!


SDK version: LEADTOOLS Multimedia EVAL 15
OS: Windows XP with SP2
Video Device: LEAD Screen Capture (2.0)
Video Compressor: XviD MPEG-4 Codec


Yinghao

You can access the filter's interface programmatically.

 

Open the LEADTOOLS Multimedia
API help file and study the code from the 2 help topics named
"Programmatically Inserting a Processor Filter" and "Access the
Interface of Filters". However, instead of the mosaic filter, which is a
processor filter, use the Screen Capture filter, which is a video source filter.

 

The programming interface of the LEAD Screen Capture filter, ILMScrCap, is documented in the LEADTOOLS Multimedia Filters Help file.