Thanks for all of your prompt helping. It works.
But I still meet 2 problem.
When I added "SET STATUS BAR OFF" in a setting.prg which I will run it first before I do a main form, I found when I click some record in some combo boxes, the record will appear on the background of the form. If I added the "SET STATUS BAR OFF" in the Init event of the main form, it seems OK. How comes?

>>When I run my exe program, how can I get rid of the Microsoft Visual FoxPro heading bar, the pull-down menu of "File", "Edit" and the record bar at the bottom so that I can save more space for the display of my program?
>
>_SCREEN.Caption="My Title"
>SET SYSMENU OFF
>SET STATUS BAR OFF
>You can also do it in Config.fpw file.