private void ShowDisplay(Rectangle rect)
{
StringBuilder buf = new StringBuilder(1000);
int err = 0;
MCI_OVLY_RECT_PARMS dwParam2 = new MCI_OVLY_RECT_PARMS();
dwParam2.rect = rect;
if (deviceID > 0 && (devCaps & DevCaps.CanShowVideo) == DevCaps.CanShowVideo)
{
err = mciSendCommandA(deviceID, MCI_PUT, MCI_WAIT | MCI_ANIM_RECT | MCI_ANIM_PUT_DESTINATION, ref dwParam2);
if (err != 0)
{
mciGetErrorStringA(err, buf, 1000);
//throw new ApplicationException("播放显示出错，" + buf.ToString());
}
}
}
private Rectangle GetDisplayRect()
{
int err;
StringBuilder buf = new StringBuilder(1000);
Rectangle rectTmp = new Rectangle();
rectTmp = rect;
if (deviceID > 0 && (devCaps & DevCaps.CanShowVideo) == DevCaps.CanShowVideo)
{
MCI_OVLY_RECT_PARMS rectp = new MCI_OVLY_RECT_PARMS();
err = mciSendCommandA(deviceID, MCI_WHERE, MCI_WAIT | MCI_OVLY_WHERE_DESTINATION, ref rectp);
if (err != 0)
{
mciGetErrorStringA(err, buf, 1000);
//throw new ApplicationException("获取视频位置和大小出错，" + buf.ToString());
}
else
{
rectTmp = rectp.rect;
}
}
return rectTmp;
}
private Size GetVideoSize()
{
int err;
StringBuilder buf = new StringBuilder(1000);
Size size = new Size(0, 0);
if (deviceID > 0 && (devCaps & DevCaps.CanShowVideo) == DevCaps.CanShowVideo)
{
MCI_OVLY_RECT_PARMS rect = new MCI_OVLY_RECT_PARMS();
err = mciSendCommandA(deviceID, MCI_WHERE, MCI_WAIT | MCI_OVLY_WHERE_SOURCE, ref rect);
if (err != 0)
{
mciGetErrorStringA(err, buf, 1000);
//throw new ApplicationException("获取视频大小出错，" + buf.ToString());
}
else
{
size = rect.rect.Size;
}
}
return size;
}
private static extern int mciSendCommandA(
Int32 wDeviceID,
UInt32 uMessage,
Int32 dwParam,
ref MCI_OVLY_RECT_PARMS Any);
