Solved

Unroll and Image

Posted on 1998-05-18
3
144 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.
0
Comment
Question by:oreg
  • 3
3 Comments
 
LVL 6

Accepted Solution

by:
clifABB earned 190 total points
ID: 1453289
To unroll to right:
Use a picturebox

Set the autoredraw property = True
Set Width = 0
Add the picture

Public Sub UnrollToRight(picTarget As PictureBox, fWidth As Single)
  Dim fCnt1 As Single
  Dim fTimer As Single

  fTimer = Timer + 10
  For fCnt1 = 0 To fWidth
    Do Until Timer > fTimer
      DoEvents
    Loop
    picTarget.Width = fCnt1
    fTimer = Timer + 10
  Next fCnt1
End Sub

Call using this code:
  Unroll Picture1, 3015 'Or whatever width it will end up.
0
 
LVL 6

Expert Comment

by:clifABB
ID: 1453290
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

0
 
LVL 6

Expert Comment

by:clifABB
ID: 1453291
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 :)
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction I needed to skip over some file processing within a For...Next loop in some old production code and wished that VB (classic) had a statement that would drop down to the end of the current iteration, bypassing the statements that were c…
I’ve seen a number of people looking for examples of how to access web services from VB6.  I’ve been using a test harness I built in VB6 (using many resources I found online) that I use for small projects to work out how to communicate with web serv…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…

947 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now