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Article ID 2006 Article Title HOWTO: Workaround Grid Problem on Windows XP Article URL http://www.dataaccess.com/kbasepublic/kbprint.asp?ArticleID=2006 KBase Category WINDOWS XP Date Created 05/07/2004 Last Edit Date 05/07/2004
Article Text
PROBLEM:
The title displayed on the right-hand side corner of dbGrid or Lookup/Selection List disappers when scrolling up-down on XP. This happens with and without using manifest files.
To reproduce:
- Open Order entry view
- Click on the prompt button for Order Number
- Scroll up and down with the mouse until you see the problem in painting the last (right-most) column
SOLUTION:
I implemented a solution which may help. Just put the following augmentation in your dbGrid or its subclass:
Procedure SetVScrollBox Integer iType Integer iData
// Pagedown and pageup are sent when the user clicks in the open scrollbar area
// If they are forward sent, the grid has several painting issues. Instead,
// I just send scroll in their place.
If ((iType <> SB_PAGEDOWN) and (iType <> SB_PAGEUP)) Forward Send SetVScrollBox iType iData
If (iType = SB_PAGEDOWN) Send Scroll 1 0
Else If (iType = SB_PAGEUP) Send Scroll 0 0
End_Procedure // SetVScrollBox
For whatever reason, forward sending in those two cases is what causes the problem.
Contributed By:
Dalton Pulsipher
email: daltonp@hcss.com
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