I left out some important info. The box that contains the info you want to copy is a memo text box. When you exceed the allowed amount, we pop up a box that allows unlimited data entry. If you copy that, the crazy stuff happens.
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first of all ctrl C & V work as they are supposed to everywhere but this one place:
We have some text boxes on one screen in our program. If you ctrl C (copy) anything from one text box and then ctrl V (paste) it to another text box, the screen goes blank.
Moving the mouse around after the screen is blank has no effect, the screen stays blank. If you happen to click where that text box was, it reappears.
Then if you move your mouse to the side of the screen, the screen reappears (but not the info you pasted). Then if you leave that screen and then go back to that screen, everything seems normal.
Someone just today noticed this. This has not been reported before in many years. The same source code has been compiled in several versions of VFP and several windows OS back to Win 2000.
[excessive quoting removed by server]