WinForm and WPF Form rendering

Pardon me, if it is a silly question. Can you anyone tell me how th开发者_如何学运维e WinForms are rendered (the background mechanism) Also how is WPF Form are rendered. In simple, i want to know the rendering mechanism of WinForms and WPF Forms.

For WPF there is the WPF Rendering Overview or WPF Rendering Steps which states

1. Render all children.
2. Process OpacityMask.
3. Process Opacity
4. BitmapEffect
5. Clip geometry
6. GuidelineSet
7. Transforms

Windows Forms renders its Forms using GDI+, while WPF renders its Windows using DirectX.