Buffer C#

Hi,

Im coding in the C# language and i'm unsure of how the IntPtr works.

I've set my buffer size, IntPtr and tried to get the video data:

int bufferSize = 1936 * 1096;


IntPtr pBuffer = new IntPtr(0);

ASICameraDll.GetVideoData(0,pBuffer,bufferSize,1);

Can someone please guide me on the buffer part and how to go about doing a live view.

Thanks in advance!

...

ASICameraDll2.ASIGetROIFormat(CameraID, out width, out height, out bin, out ImageType);

IntPtr ImageBuf;//== IntPtr.Zero

int size = width * height;

if (ImageType == ASICameraDll2.ASI_IMG_TYPE.ASI_IMG_RAW16)

size *= 2;

ImageBuf = Marshal.AllocCoTaskMem(size);

if (ASICameraDll2.ASIGetVideoData(CameraID, ImageBuf, size, 0) == ASICameraDll2.ASI_ERROR_CODE.ASI_SUCCESS)

{

byte dataByte=null;

if (ImageType == ASICameraDll2.ASI_IMG_TYPE.ASI_IMG_RAW16)

size *= 2;

dataByte = new byte;

Marshal.Copy(ImageBuf, dataByte, 0, size);

...

}

...

Marshal.FreeCoTaskMem(ImageBuf);