参考这个例子:
Painting in the MDI Client Area
http://www.vbaccelerator.com/home/NET/Code/Libraries/Windows/MDI_Client_Area_Painting/article.asp
Painting in the MDI Client Area
http://www.vbaccelerator.com/home/NET/Code/Libraries/Windows/MDI_Client_Area_Painting/article.asp
解决方案 »
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