public override IntPtr GetHBitmap(string filePath, double position)
{
IntPtr result = IntPtr.Zero;
if (_mfileObj != null)
{
try
{
_mfileObj.FileNameSet(filePath, string.Empty);
_mfileObj.ObjectStart(null);
try
{
result = GetHBitmapCore(position);
}
finally
{
_mfileObj.ObjectClose();
}
}
catch
{
result = IntPtr.Zero;
}
}
return(result);
}
private IntPtr GetMediaFileInfoInternal(string filePath, out double dblDuration)
{
IntPtr hBitmap = IntPtr.Zero;
dblDuration = 0;
if (_mfileObj != null)
{
try
{
_mfileObj.FileNameSet(filePath, string.Empty);
_mfileObj.ObjectStart(null);
double dblIn, dblOut;
try
{
_mfileObj.FileInOutGet(out dblIn, out dblOut, out dblDuration);
if (dblDuration > 0)
{
MFrame mFrame = null;
_mfileObj.FileFrameGet(dblDuration / 2.0, 0.0, out mFrame);
long value = 0L;
mFrame.FrameVideoGetHbitmap(out value);
Marshal.ReleaseComObject(mFrame);
mFrame = null;
hBitmap = new System.IntPtr(value);
}
}
finally
{
_mfileObj.ObjectClose();
}
}
catch
{
hBitmap = IntPtr.Zero;
}
}
return(hBitmap);
}
public override TimeSpan GetDuration(string filePath)
{
double dblDuration = 0;
if (_mfileObj != null)
{
_mfileObj.FileNameSet(filePath, string.Empty);
_mfileObj.ObjectStart(null);
double dblIn, dblOut;
try
{
_mfileObj.FileInOutGet(out dblIn, out dblOut, out dblDuration);
}
finally
{
_mfileObj.ObjectClose();
}
}
return(TimeSpan.FromSeconds(dblDuration));
}
