public static SafeTransformHandle CreateTransform(SafeProfileHandle sourceProfile, SafeProfileHandle destinationProfile, mscmsIntent dwIntent)
{
if (sourceProfile == null || sourceProfile.IsInvalid)
{
throw new ArgumentNullException("sourceProfile");
}
if (destinationProfile == null || destinationProfile.IsInvalid)
{
throw new ArgumentNullException("destinationProfile");
}
IntPtr[] handles = new IntPtr[2];
bool success = true;
sourceProfile.DangerousAddRef(ref success);
destinationProfile.DangerousAddRef(ref success);
try
{
handles[0] = sourceProfile.DangerousGetHandle();
handles[1] = destinationProfile.DangerousGetHandle();
uint[] dwIntents = new uint[2] {
(uint)dwIntent, (uint)dwIntent
};
var htransform = CreateMultiProfileTransform(
handles, (uint)handles.Length,
dwIntents, (uint)dwIntents.Length,
BEST_MODE | USE_RELATIVE_COLORIMETRIC, 0);
if (htransform.IsInvalid)
{
throw new Win32Exception();
}
return(htransform);
}
finally
{
sourceProfile.DangerousRelease();
destinationProfile.DangerousRelease();
}
}
private static int CreateColorTransform(SafeProfileHandle input, SafeProfileHandle output, out SafeTransformHandle handle)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
#if DEBUG
System.Diagnostics.Debug.Assert(!input.IsInvalid, "Input handle is invalid.");
System.Diagnostics.Debug.Assert(!output.IsInvalid, "Output handle is invalid.");
#endif
handle = null;
int error = NativeConstants.ERROR_SUCCESS;
bool inputNeedsRelease = false;
bool outputNeedsRelease = false;
System.Runtime.CompilerServices.RuntimeHelpers.PrepareConstrainedRegions();
try
{
input.DangerousAddRef(ref inputNeedsRelease);
output.DangerousAddRef(ref outputNeedsRelease);
IntPtr[] profiles = new IntPtr[2] {
input.DangerousGetHandle(), output.DangerousGetHandle()
};
uint[] intents = new uint[2]
{
(uint)NativeEnums.Mscms.RenderingIntent.Perceptual,
(uint)NativeEnums.Mscms.RenderingIntent.Perceptual
};
handle = UnsafeNativeMethods.Mscms.CreateMultiProfileTransform(
profiles,
(uint)profiles.Length,
intents,
(uint)intents.Length,
NativeEnums.Mscms.TransformFlags.BestMode,
NativeConstants.CMM_FROM_PROFILE
);
if (handle == null || handle.IsInvalid)
{
error = Marshal.GetLastWin32Error();
}
}
finally
{
if (inputNeedsRelease)
{
input.DangerousRelease();
}
if (outputNeedsRelease)
{
output.DangerousRelease();
}
}
return(error);
}
