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Ghosting
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De
13/07/2001 17:13:03
 
 
À
13/07/2001 14:10:38
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Titre:
Divers
Thread ID:
00530424
Message ID:
00530516
Vues:
22
>Hi -
>We have certain forms which have either grid in them or a drop down combo box in them. When you scroll down through either the grid or combo box and select an item, there seems to be a square box that appears on the form where you did the selction from. This dissapears when you refresh the form, however, how do I stop this "ghosting" from happening?

I agree with Mark that video driver problems are often a cause of this. One workaround is to wrap screen refresh function calls in a .LockScreen = .T. / .LockScreen = .F. pair so individual control updates are "batched".

Just don't forget to issue .LockScreen = .F. when you're done.
Regards. Al

"Violence is the last refuge of the incompetent." -- Isaac Asimov
"Never let your sense of morals prevent you from doing what is right." -- Isaac Asimov

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Every app wants to be a database app when it grows up
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