Painting in the MDI Client Areahttp://www.vbaccelerator.com/home/NET/Code/Libraries/Windows/MDI_Client_Area_Painting/article.asp
Painting in the MDI Client Areahttp://www.vbaccelerator.com/home/NET/Code/Libraries/Windows/MDI_Client_Area_Painting/article.asp
sub DrawInForm(byval F as Form)
dim g as graphics
g=F.CreateGraphics()
'开始画画end sub