private void pCapture()
{
int bufSize = 0;
IntPtr imgData;
pSampleGrabber.GetCurrentBuffer(ref bufSize, IntPtr.Zero);
if (bufSize < 1)
{
textBox1.Text = "Get(bufSize) Error";
//return ;
}
imgData = Marshal.AllocCoTaskMem(bufSize);
pSampleGrabber.GetCurrentBuffer(ref bufSize, imgData);
saveToJpg(imgData, bufSize, Video_Height, Video_Width);
Marshal.FreeCoTaskMem(imgData);
}
// Grab a snapshot of the most recent image played.
// Returns A pointer to the raw pixel data. Caller must release this memory with
// Marshal.FreeCoTaskMem when it is no longer needed.
public IntPtr GetBitmap()
{
int hr;
IntPtr ip = IntPtr.Zero;
int iBuffSize = 0;
// Read the buffer size
hr = m_sampGrabber.GetCurrentBuffer(ref iBuffSize, ip);
//DsError.ThrowExceptionForHR( hr );
//Debug.Assert(iBuffSize == m_ImageSize, "Unexpected buffer size");
// Allocate the buffer and read it
ip = Marshal.AllocCoTaskMem(iBuffSize);
hr = m_sampGrabber.GetCurrentBuffer(ref iBuffSize, ip);
DsError.ThrowExceptionForHR(hr);
return(ip);
}