Active Resize Question

Posted on 2008-10-24
Last Modified: 2012-05-05

Does anyone use ActiveResize for VB?  It's a tool that automatically resizes a form to fit screen resolution.  I'm finding that the demo version works on some screens but not on others.  Ideas?
Question by:NigelRocks
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Accepted Solution

Adel87 earned 500 total points
ID: 22802193
instead of wasting your money on off-the-shelve components you can make your own code or use the code in the following link :

it will simply resize all the controls of the form with respect to the new size of the form. it's simple to use also, you just add the mudule and call the function from the resize event of your form.

Please let me know if you need further assistance.


Author Comment

ID: 22805868
I put all this code in its own module and I get a "division by zero" error on this line:

x_size = frm.height / iHeight

What am I missing?


Assisted Solution

Adel87 earned 500 total points
ID: 22806223

it seems you forgot to put the code for the load event of the form, that's why iHeight is not declared.

Please do the following :

1- put the following code in the form1_load method
Private Sub Form_Load()
    GetLocation Me
    CenterForm Me
    ResizeForm Me
End Sub

2- put the following code in the form_resize method :
Private Sub Form_Resize()
     ResizeControls Me
End Sub

3- Put the code attached with this post underneath a module

4- add few components like command buttons and labels with difirent sizes all over the form.

5- if you need to change the font size also then ,for each componant that needs the font to be change with respect to the form size add the following line in both the Form1_Load and the Form1_Resize events:
Label.Font = SetFontSize()

Please let me know if you need further assistance.

Private List() As Control
Private curr_obj As Object
Private iHeight As Integer
Private iWidth As Integer
Private x_size As Double
Private y_size As Double
'                           LICENSE INFORMATION
'   FormControl Version 2.0
'   Code module for resizing a form based on screen size, then resizing the
'   controls based on the forms size
'   Copyright (C) 2007
'   Richard L. McCutchen
'   Email:
'   Created: AUG99
'   This program is free software: you can redistribute it and/or modify
'   it under the terms of the GNU General Public License as published by
'   the Free Software Foundation, either version 3 of the License, or
'   (at your option) any later version.
'   This program is distributed in the hope that it will be useful,
'   but WITHOUT ANY WARRANTY; without even the implied warranty of
'   GNU General Public License for more details.
'   You should have received a copy of the GNU General Public License
'   along with this program.  If not, see <>.
Private Type Control
    Index As Integer
    Name As String
    Left As Integer
    Top As Integer
    width As Integer
    height As Integer
End Type
Public Sub ResizeControls(frm As Form)
Dim i As Integer
'   Get ratio of initial form size to current form size
x_size = frm.height / iHeight
y_size = frm.width / iWidth
'Loop though all the objects on the form
'Based on the upper bound of the # of controls
For i = 0 To UBound(List)
    'Grad each control individually
    For Each curr_obj In frm
        'Check to make sure its the right control
        If curr_obj.TabIndex = List(i).Index Then
            'Then resize the control
             With curr_obj
                .Left = List(i).Left * y_size
                .width = List(i).width * y_size
                .height = List(i).height * x_size
                .Top = List(i).Top * x_size
             End With
        End If
    'Get the next control
    Next curr_obj
Next i
End Sub
Public Function SetFontSize() As Integer
    'Make sure x_size is greater than 0
    If Int(x_size) > 0 Then
    'Set the font size
        SetFontSize = Int(x_size * 8)
    End If
End Function
Public Sub GetLocation(frm As Form)
Dim i As Integer
'   Load the current positions of each object into a user defined type array.
'   This information will be used to rescale them in the Resize function.
'Loop through each control
For Each curr_obj In frm
'Resize the Array by 1, and preserve
'the original objects in the array
    ReDim Preserve List(i)
    With List(i)
        .Name = curr_obj
        .Index = curr_obj.TabIndex
        .Left = curr_obj.Left
        .Top = curr_obj.Top
        .width = curr_obj.width
        .height = curr_obj.height
    End With
    i = i + 1
Next curr_obj
'   This is what the object sizes will be compared to on rescaling.
    iHeight = frm.height
    iWidth = frm.width
End Sub
Public Sub CenterForm(frm As Form)
    frm.Move (Screen.width - frm.width) \ 2, (Screen.height - frm.height) \ 2
End Sub
Public Sub ResizeForm(frm As Form)
    'Set the forms height
    frm.height = Screen.height / 2
    'Set the forms width
    frm.width = Screen.width / 2
    'Resize all of the controls
    'based on the forms new size
    ResizeControls frm
End Sub

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