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Sensitive picture display on the form.

Posted on 2006-06-15
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Last Modified: 2010-04-30
The picture on the form draws a graph, but the picture is so sensitive, it disappears if a windows comes on top of it, it also dissappears if the application window is minimized, can someone please tell me what is causing this behavior.

Thank you.
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Question by:Aiysha
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6 Comments
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 16915355
How are you drawing this graph?
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Author Comment

by:Aiysha
ID: 16915407
For j = 1 To count - 1
X = ArrDate(j)
Y = ArrData(j)
x1 = ArrDate(j + 1)
y1 = ArrData(j + 1)
Picture1.Line (X, Y)-(x1, y1), vbBlue
Picture1.DrawWidth = 2
Next j
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Expert Comment

by:lunchbyte
ID: 16915564
do you have form.redraw set to false if so then set it to true and see if this helps.
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Author Comment

by:Aiysha
ID: 16915648
Where do I find that option "Form.redraw" ?
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LVL 86

Expert Comment

by:Mike Tomlinson
ID: 16915671
It should be the AutoRedraw property of your PICTUREBOX set to True.

If you don't want AutoRedraw set to True, then use the PictureBoxes Paint() event to do your drawing:

So either:

    Private Sub Form_Load()
        Picture1.AutoRedraw = True
    End Sub

or:

    Private Sub Picture1_Paint()
        ' variable declarations...
   
        ' ... more code possibly ...
   
        For j = 1 To Count - 1
            X = ArrDate(j)
            Y = ArrData(j)
            X1 = ArrDate(j + 1)
            Y1 = ArrData(j + 1)
            Picture1.Line (X, Y)-(X1, Y1), vbBlue
            Picture1.DrawWidth = 2
        Next j
    End Sub
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Accepted Solution

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lunchbyte earned 2000 total points
ID: 16915673
in properties.

autoredraw not redraw my bad.

You can do this on form load
me.autoredraw = true if you cannot find it in properties
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