public uint GetZoomPropDesc(uint cameraHandle, out ZoomPropDesc propDesc)
{
uint response = 0;
uint size = (uint)this.BUFFER_SIZE;
IntPtr pSpace = Marshal.AllocHGlobal(this.BUFFER_SIZE);
response = PR_GetDevicePropDesc(cameraHandle, (ushort)DevicePropCode.prPTP_DEV_PROP_ZOOM_POS, ref size, pSpace);
if (response == 0)
{
propDesc = (ZoomPropDesc)Marshal.PtrToStructure(pSpace, typeof(ZoomPropDesc));
}
else
{
propDesc = null;
}
return(response);
}
public uint GetZoomPropValue(uint cameraHandle, out ZoomPropDesc propDesc)
{
uint response = 0;
uint size = (uint)this.BUFFER_SIZE;
IntPtr pPropDesc = Marshal.AllocHGlobal(this.BUFFER_SIZE);
response = PR_GetDevicePropValue(cameraHandle, (ushort)DevicePropCode.prPTP_DEV_PROP_ZOOM_POS, ref size, pPropDesc);
if (response == 0)
{
var upropDesc = (ushort)Marshal.PtrToStructure(pPropDesc, typeof(ushort));
propDesc = null;
}
else
{
propDesc = null;
}
return response;
}
