Designer Error

[jeeradate]

Color in the sample box is error as shown in the picture.

 

[Erel]

Does it happen all the time?
What is your OS version?

 

[Roger Garstang]

That looks more like a bad Display Driver/Card or too low of Color Depth setting in the OS Display Options.

 

[jeeradate]

I use Windows 7 , Core I5 and medium quality display card with Dual monitors.
The problem happen every time when scroll up and down to select the color.

 

[Roger Garstang]

It has been a long time ago, but there is an option in Windows(2000/XP at least) that was called Smooth Scrolling. Sometimes it caused issues with Combobox and Listbox scrolling depending on how the control draws since the option changes how the control scrolls in increments of items to per pixels.

Not sure how much that helps, but it could be a starting point. I'd have to search over at the PowerBASIC or Firefly forums to see how it was solved before...I don't know if it was overrode, if the controls were drawn different, or if it was just a video card rendering thing that went away and is possibly back.

 

[jeeradate]

Thank you very much.

 

[Roger Garstang]

Did that fix it, or were you just thanking for comment/effort to fix it?

 

[jeeradate]

I try again without any fix. I cannot reproduce the error again.
I think my PC run too many software until resource is not enough.
Or some application on my PC that cause the problem.