Before for the sake of the diagram, directly to the form of the background image set, found that this time the form of the operation of the special lag, and then put a PictureBox control, the control is loaded by the picture as the background.
Now that the lag is resolved, another problem arises when the runtime, because the Panel control background color setting is transparent, finds that the background color it displays is the background color of the form, rather than the picture inside the PictureBox.
I've been thinking about this for a long time and now I've found a way. Set the control under the panel to parent.
This.panel1.Parent = This.picturebox1;
http://www.cnblogs.com/chengxiaohui/articles/1921608.html bo Master: fumen
When a panel or other control overlay is resolved, the background of the control is transparent and the background color of the display is the background color of the form