/**
* @brief Unlock the previously acquired buffer.
* @param[in] data The sample data storage previously acquired.
* @return PXCM_STATUS_NO_ERROR Successful execution.
*/
public pxcmStatus ReleaseAccess(ImageData data)
{
ImageDataNative dataNative = data as ImageDataNative;
if (dataNative == null)
{
return(pxcmStatus.PXCM_STATUS_HANDLE_INVALID);
}
if (dataNative.native == IntPtr.Zero)
{
return(pxcmStatus.PXCM_STATUS_HANDLE_INVALID);
}
pxcmStatus sts = PXCMImage_ReleaseAccess(instance, dataNative.native);
Marshal.FreeHGlobal(dataNative.native);
dataNative.native = IntPtr.Zero;
return(sts);
}
/**
* @brief Lock to access the internal storage of a specified format. The function will perform format conversion if unmatched.
* @param[in] access The access mode.
* @param[in] format The requested smaple format.
* @param[in] options The option flags.
* @param[out] data The sample data storage, to be returned.
* @return PXCM_STATUS_NO_ERROR Successful execution.
*/
public pxcmStatus AcquireAccess(Access access, PixelFormat format, Option options, out ImageData data)
{
ImageDataNative dataNative = new ImageDataNative();
dataNative.native = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(ImageDataNative)));
data = dataNative;
pxcmStatus sts = PXCMImage_AcquireAccess(instance, access, format, options, dataNative.native);
if (sts >= pxcmStatus.PXCM_STATUS_NO_ERROR)
{
IntPtr native = dataNative.native;
Marshal.PtrToStructure(dataNative.native, dataNative);
dataNative.native = native;
}
else
{
Marshal.FreeHGlobal(dataNative.native);
dataNative.native = IntPtr.Zero;
}
return(sts);
}
/**
@brief Lock to access the internal storage of a specified format. The function will perform format conversion if unmatched.
@param[in] access The access mode.
@param[in] format The requested smaple format.
@param[in] options The option flags.
@param[out] data The sample data storage, to be returned.
@return PXCM_STATUS_NO_ERROR Successful execution.
*/
public pxcmStatus AcquireAccess(Access access, PixelFormat format, Option options, out ImageData data)
{
ImageDataNative dataNative = new ImageDataNative();
dataNative.native = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(ImageDataNative)));
data = dataNative;
pxcmStatus sts = PXCMImage_AcquireAccess(instance, access, format, options, dataNative.native);
if (sts >= pxcmStatus.PXCM_STATUS_NO_ERROR)
{
IntPtr native = dataNative.native;
Marshal.PtrToStructure(dataNative.native, dataNative);
dataNative.native = native;
}
else
{
Marshal.FreeHGlobal(dataNative.native);
dataNative.native = IntPtr.Zero;
}
return sts;
}
