/* 开始捕获预览视频 */
void CMainFrame::OnVfwPreviewvideo()
{
// TODO: 在此添加命令处理程序代码
CAPTUREPARMS CapParms;
bPreview =! bPreview;
if(bPreview){
capCaptureGetSetup(m_hWndCap,&CapParms,sizeof(CAPTUREPARMS));
CapParms.dwIndexSize=324000;
CapParms.fMakeUserHitOKToCapture=!CapParms.fMCIControl;
CapParms.wPercentDropForError=100;
CapParms.wNumVideoRequested=5;
CapParms.wChunkGranularity=0;
CapParms.fYield=TRUE;
CapParms.fCaptureAudio=FALSE;
CapParms.vKeyAbort=0;
CapParms.fAbortLeftMouse=CapParms.fAbortRightMouse=FALSE;
CapParms.dwRequestMicroSecPerFrame=1000000/25;
capSetCallbackOnYield(m_hWndCap,NULL);
capCaptureSetSetup(m_hWndCap,&CapParms,sizeof(CAPTUREPARMS));
capCaptureSequenceNoFile(m_hWndCap);
m_vfwState = PREVIEW;
}else{
capCaptureAbort(m_hWndCap);
}
}
// Standard AVIcap window message
// macro: capSetCallbackOnYield
// NB:?? I've never used this callback
// It's useless command under the WIN32!
BOOL CAviCap::SetYiedCallBack(LPVOID cb)
{
CHECKWIN();
CHECKCNCT();
return capSetCallbackOnYield(GetSafeHwnd(), cb);
}
