Hey all,
So I've written a simple video player using directshow/COM in VC++,
and I'm in the process of translating it to python. For example, when
the avi starts playing, I have a call media_control.Run() , etc.
I'm wondering how I should go about updating my gtk.Hscale widget as a
trackbar for the avi player.
In C++, I have the following callbacks that update the scrollbar and
video position with a timer.
void CvideoDlg::OnNMReleasedcaptureSlider1(NMHDR *pNMHDR, LRESULT
*pResult)
{ //Slider event handler
LONGLONG lPos = 0;
LONGLONG lDuration = 0;
KillTimer(101);
g_pSeek->GetDuration(&lDuration);
g_pSeek->GetCurrentPosition(&lPos);
Videopos= m_slider.GetPos(); //Sets new video position to that of
the slider, which user inputs
lPos = ((long)Videopos * (lDuration/num_of_frames));
g_pSeek->SetPositions(&lPos, AM_SEEKING_AbsolutePositioning,NULL,
AM_SEEKING_NoPositioning);
*pResult = 0;
}
void CvideoDlg::OnTimer(UINT nIDEvent)
{ //Timer event handler.
LONGLONG lPos = 0;
LONGLONG lDuration = 0;
g_pSeek->GetDuration(&lDuration);
g_pSeek->GetCurrentPosition(&lPos);
Videopos = (int)(lPos * num_of_frames/ lDuration);
m_slider.SetPos(Videopos);
if (Videopos==(int)(last_frame)) //If we get to the end of the
selection, the video pauses
pause();
else{
UpdateData(); //Updates the slider controller and position
CDialog::OnTimer(nIDEvent);}
}
I'm wondering how I would implement similar callbacks in Python for a
gtk.Hscale, and some sort of time [I'm not familiar with Pythons
timers/threading at all].
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