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Scrolling text up/down in a text box

Posted on 1998-08-29
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Last Modified: 2008-02-26
I'd like to make a scrolling marquee type of about box but am lost when it comes to scrolling text in a vertical motion and then refreshing it self and starting over again once the message as scrolled...ideas please. Thanks
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Question by:smithgr
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MikeP090797 earned 200 total points
ID: 1431772
Do something like this:

1. Add 5-7 blank lines into the edit box before the text, so it will show only the first line at the bottom of it, and then 5-6 blank lines after the text, so only 1 line will be shown at the top

2. Put this in a module:
Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Const EM_SCROLL = &HB5
Public Const SB_LINEDOWN = 1
Public Const SB_LINEUP = 0


3. Create a timer with the interval set to 300-500, depending on the size of the text


4.Put this in Timer1_Timer

Static N1 as integer
Dim I as integer
If N1='NumberOfLines  then
For I = 1 to 'NumberofLines
 SendMessage Text1.hwnd, EM_SCROLL, SB_LINEUP, 0
Next I
N1=0
End If


N1=N1+1
SendMessage Text1.hwnd, EM_SCROLL, SB_LINEDOWN, 0


Tell me if there are any problems

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Author Comment

by:smithgr
ID: 1431773
Mike,

Thanks - I tried your suggestion but I didnt like the jumping of lines so what I did was to place a picture within a picture and place a label on that inner picture, I then scroll the inner picture within the outer picture which makes for smooth scrolling of the text - pictures and anything else placed on it. Thanks - your answer helped put me in the right direction.

Gary

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