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Visual Basic Mouse Over Image Question

Posted on 2013-12-09
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Last Modified: 2013-12-22
I have twenty custom button images on a main menu.  Font color black.  Visible=True
I made twenty other identical images directly over each.  Font color yellow. Visible=False
When the mouse passes over a black font button,  I turn the visible property of the yellow button on and off when it hits the regular background.  Works great except that randomly a button blinks instead of just transitioning  smoothly from one font color to the other.  Any suggestions how to correct the occasional blinking or a better technique? Thank You
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Question by:GarySB
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by:Martin Liss
ID: 39707841
What kind of buttons are they and can you zip up and attach your project?
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Author Comment

by:GarySB
ID: 39709879
Below are two Subs. The first activates when the mouse passes over a menu selection. I basically swipe out one image for the highlighted one and change it back when the user moves the mouse off of the image.  When I move the mouse over all the buttons, it goes well and then one of the images will completely blink instead of just smoothly changing to the highlighted image I am passing. It seems to happen randomly to any one of them.  I originally tried just turning the visibility value true & false, but I had the same performance result, Thanks for your assistance.

Private Sub LevelClick_cmd_MouseMove(Index As Integer, Button As Integer, Shift As Integer, X As Single, Y As Single)

    ' LevelClick_cmd(20) Images are black font
    ' LevelClick_cmd3(20) Images are yellow font
      
    ' If they are on the same selection then do nothing.
    If SImage = Index Then Exit Sub
   
    ' turn off previous highlighted yellow image
    If SImage > 0 Then
        ' yellow
        LevelClick_cmd(SImage).Picture = ImageTransport.Picture
    End If
   
    SImage = Index  ' set variable to current image mouse is over
           
        ' save original image to put back
        ImageTransport.Picture = LevelClick_cmd(SImage).Picture
      ' now highlight
        LevelClick_cmd(SImage).Picture = LevelClick_cmd3(SImage).Picture

End Sub

(red_img is the menu background)
Private Sub red_img_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)

    ' switch image back to original if user moves mouse off image.
    If SImage > 0 Then
        LevelClick_cmd(SImage).Picture = ImageTransport.Picture
        SImage = 0
    End If

End Sub
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by:Martin Liss
ID: 39709898
Let me ask again - can you zip up and attach your project?
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Author Comment

by:GarySB
ID: 39709921
The two Subs I provided are complete.
The actual project is too large, plus the extra code has nothing to do with the main menu image flickering.  Before I did not highlight the command buttons I used when the mouse past over.  I think it looks much better this way.
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Author Comment

by:GarySB
ID: 39709926
One other point! I am not using a timer so no delay should be happening.
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by:Martin Liss
ID: 39709957
Without the actual project I won't be able to see what happens and debug the code. Create a zip file, upload it to www.mediafire.com and post the resulting URL.
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Accepted Solution

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GarySB earned 0 total points
ID: 39725605
I deleted the Image objects and replaced them with Picture ones and the blinking is gone. Poor characteristic of the Image performance.
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Author Closing Comment

by:GarySB
ID: 39734474
The Image does not have the quality to clearly swap objects without resulting in blinking.  After many hours of trying I just substituted with Picture objects and they work great.  I could not upload my project as requested, so I had to come up with an alternative.
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