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Unroll and Image

oreg
oreg asked
on
221 Views
Last Modified: 2012-06-27
Hi, I am using VB5 (SP3) under NT and 95.  I want to give the appearance of an image "unrolling" that is, the image appears partly on the left (or whatever side) and then 'opens' to the right, like unrolling a roll of paper or something.  I do not care what control I use (ie: Picture or Image), any ideas?

Thanks in advance.
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Commented:
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Commented:
I have improved it a bit (and added a rollup as well):
Set the picture controls visible property = false

Public Sub RollupFromRight(picTarget As PictureBox)
  Dim fCnt1 As Single
  Dim fWidth As Single
 
  fWidth = picTarget.Width
  For fCnt1 = fWidth To 0 Step -5
    picTarget.Width = fCnt1
    picTarget.Parent.Refresh
  Next fCnt1
  picTarget.Visible = False
End Sub
Public Sub UnrollToRight(picTarget As PictureBox, fWidth As Single)
  Dim fCnt1 As Single
  Dim fTimer As Single

  picTarget.Visible = True
  For fCnt1 = 0 To fWidth Step 5
    picTarget.Width = fCnt1
    picTarget.Refresh
  Next fCnt1
End Sub


This will call it:
  If Picture1.Visible Then
    RollupFromRight Picture1
  Else
    UnrollToRight Picture1, 3615
  End If

Commented:
This is pretty good, it does the job but is awefully slow on any non-trivial image, I managed to speed it up by only calling .refresh so often, so it works pretty nicely.  Thanks, if you figure any other neat tricks feel free to post them :)

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