gdiplus使用， - This form *badly* demonstrates how to get VB to handle GDI+ freehand shape drawing, specifically curves. I say badly because there are many optimizations that are not implemented, such as figuring out a way not to have to redraw the entire curve for each added point. Redrawing the entire curve for each new point will result in a major loss of performance the larger the curve gets. There are also some other things wrong, which you ll hopefully spot. - The Curve type/structure can also be expanded and renamed for use with basically any shape and could hold more specific data.-gdiplus use-This form * badly * demonstrates how to get VB to handle GDI drawing freehand shape, specifically curves. I say badly because there are many optimizations that are not implemented, such as figuring out a way not to have to redraw the entire curve for each point added. Redrawing the entire curve for each new point will result in a major loss of performance the larger the curve gets. There are also some other things wrong, which you ll hopefully spot. - The Curve type / structure can also be expanded and renamed for use with basically any shape and could hold more specific data.