SOLVED: Checkbox and RadioButton appearance bug

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Both checkbox and radiobutton lose their appearance during Click event.

To reproduce just add checkbox to a form, set appearance to anything other than 0 and add this code:

Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Private Sub CheckBox1_Click()
'simulate a long running routine
Sleep 1000
End Sub

When object is clicked it's appearance reverts to standard for the duration of the click event.

Can this be fixed for next version?

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ijwelch Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 20 June 2006 Status: Offline Points: 262	Post Options Post Reply Quote ijwelch Report Post Thanks(0) Quote Reply Topic: SOLVED: Checkbox and RadioButton appearance bug Posted: 13 August 2008 at 1:51am
	Both checkbox and radiobutton lose their appearance during Click event. To reproduce just add checkbox to a form, set appearance to anything other than 0 and add this code: Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long) Private Sub CheckBox1_Click() 'simulate a long running routine Sleep 1000 End Sub When object is clicked it's appearance reverts to standard for the duration of the click event. Can this be fixed for next version?

Baldur Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 22 November 2006 Location: Germany Status: Offline Points: 244	Post Options Post Reply Quote Baldur Report Post Thanks(0) Quote Reply Posted: 14 August 2008 at 7:19am
	If your process is suspended like sleep you can't process any event's or windows-messages. This is by windows-design. I think, this can't be solved by CJ. If i have long running functions i show a modal-form with a progress-bar and do some DoEvents.

ijwelch Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 20 June 2006 Status: Offline Points: 262	Post Options Post Reply Quote ijwelch Report Post Thanks(0) Quote Reply Posted: 14 August 2008 at 9:46pm
	Thanks Baldur. You gave me an idea. The procedure is not that long running, just maybe half a second, but drawing problem very visible. I thought maybe CJ could ensure control is redrawn before raising the click event. However, adding DoEvents at start of click event procedure fixes the problem.