wglMakeCurrent failed with error code ERROR_TRANSFORM_NOT_SUPPORTED (2004)

[Mohammed El-Dana]

I'm creating an MFC application that uses skia for rendering.

Now when I call wglMakeCurrent with no scroll (Scroll position is 0, 0) it works fine.

But when I change the scroll position, calling wglMakeCurrent failed and GetLastError returns 2004.

Note: My view is inherited from CScrollView

Here is the sample I'm using in OnDraw:

HDC hdc = pDC->m_hDC;

fHGLRC = SkCreateWGLContext(hdc, 0, kGLPreferCompatibilityProfile_SkWGLContextRequest);

         if (wglMakeCurrent(hdc, fHGLRC))

         {

            const GrGLInterface* fInterface = GrGLCreateNativeInterface();




            fContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)fInterface);

            {

               GrBackendRenderTargetDesc desc;

               desc.fWidth = 2000;

               desc.fHeight = 3000;

               desc.fConfig = kSkia8888_GrPixelConfig;

               desc.fOrigin = kBottomLeft_GrSurfaceOrigin;

               GrTextureProvider* provider = fContext->textureProvider();

               fRenderTarget = provider->wrapBackendRenderTarget(desc);

            }

            surface = SkSurface::NewRenderTargetDirect(_fRenderTarget);
            //Do Draw Stuff
            surface->getCanvas();
           ....etc

[Brian Salomon]

I don't really know anything about MFC, but perhaps you're using windows APIs that aren't compatible with a OpenGL backed window?

--
You received this message because you are subscribed to the Google Groups "skia-discuss" group.
To unsubscribe from this group and stop receiving emails from it, send an email to skia-discuss...@googlegroups.com.
To post to this group, send email to skia-d...@googlegroups.com.
Visit this group at http://groups.google.com/group/skia-discuss.
For more options, visit https://groups.google.com/d/optout.

[Mohammed El-Dana]

Thanks for your response, I found the problem, the problem caused by the cscrollview, I change it to cview and handled the scrolling manually (Translate).