请问在vb中，可以给详细介绍下PaintPicture函数吗？

Question

Sub PaintPicture(Picture As StdPicture, X1 As Single, Y1 As Single, [Width1], [Height1], [X2], [Y2], [Width2], [Height2], [Opcode])

以上这个，给详细介绍下！