Painting and Drawing[MSDN/Windows GDI]

https://msdn.microsoft.com/en-us/library/dd162759(v=vs.85).aspx

Painting and Drawing

This overview describes how the system manages output to the screen and explains what applications must do to draw in a window. In particular, this overview describes display device contexts (or, more simply, display DCs) and how to prepare and use them. The overview does not explain how to use graphics device interface (GDI) functions to generate output, nor does it explain how to print.

• About Painting and Drawing
• Using the WM_PAINT Message
• Using the GetDC Function
• Painting and Drawing Reference

http://blog.csdn.net/cocoasprite/article/details/43191691