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scrolling scroll bar by code

Posted on 2002-07-02
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Last Modified: 2010-05-02
i have a mdi form which contain a child form,i wish to know how can i use coding to move the scroll bar of the mdi form so the user no need to use mouse to scroll down manually to see the whole content of the child form.. please gave me some example to refer to.. Thanks
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Question by:tayleeming
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4 Comments
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 7124330
What about this example (code for the MDI Child):

Private Sub Form_DblClick()
  Me.Top = 0
  Me.Left = 0
End Sub

CHeers
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LVL 52

Accepted Solution

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Ryan Chong earned 50 total points
ID: 7126062
Try use SendMessage API:

use the SendMessage API to scroll the form to top:

http://www.mvps.org/vbnet/code/subclass/lvscrollbars.htm

Basically, what you should look is the:

Private Const SB_LINEUP = 0
Private Const SB_LINEDOWN = 1
Private Const SB_PAGEUP = 2
Private Const SB_PAGEDOWN = 3
Private Const SB_THUMBPOSITION = 4
Private Const SB_THUMBTRACK = 5
Private Const SB_TOP = 6
Private Const SB_BOTTOM = 7
Private Const SB_ENDSCROLL = 8

Private Declare Function SendMessage Lib "user32" _
  Alias "SendMessageA" _
 (ByVal hWnd As Long, _
  ByVal wMsg As Long, _
  ByVal wParam As Long, _
  lParam As Any) As Long

and

Call SendMessage(ListView2.hWnd, _
                            WM_VSCROLL, _
                            wParam, _
                            ByVal 0&)
Modify the parameter to

Call SendMessage(FormName.hWnd, _
                            WM_VSCROLL, _
                            B_BOTTOM , _
                            ByVal 0&)


Hope this helps
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by:DanRollins
ID: 7971214
Hi tayleeming,
It appears that you have forgotten this question. I will ask Community Support to close it unless you finalize it within 7 days. I will ask a Community Support Moderator to:

    Accept ryancys's comment(s) as an answer.

tayleeming, if you think your question was not answered at all or if you need help, just post a new comment here; Community Support will help you.  DO NOT accept this comment as an answer.

EXPERTS: If you disagree with that recommendation, please post an explanatory comment.
==========
DanRollins -- EE database cleanup volunteer
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Expert Comment

by:SpideyMod
ID: 8018740
per recommendation

SpideyMod
Community Support Moderator @Experts Exchange
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