by Waty Thierry (60 Submissions)
Category: Custom Controls/Forms/Menus
Compatability: Visual Basic 4.0 (32-bit)
Difficulty: Unknown Difficulty
Originally Published: Tue 13th April 1999
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Resize and location of controls on forms
VBcoders
' * Programmer Name : Mikhail Shmukler
' * Web Site : www.geocities.com/ResearchTriangle/6311/
' * E-Mail : [email protected]
' * Date : 13/10/98
' * Time : 10:24
' * Module Name : class_Elastic
' * Module Filename : Elastic.cls
' **********************************************************************
' * Comments :
' * This class can change size and location of controls On your form
' * 1. Resize form
' * 2. Change screen resolution
' * Assumes:1. Add Elastic.cls
' * 2. Add declaration 'Private El as New class_Elastic'
' * 3. Insert string like 'El.init Me' (formload event)
' * 4. Insert string like 'El.FormResize Me' (Resize event)
' * 5. Press 'F5' and resize form ....
'
'****************************************************************
Option Explicit
Private nFormHeight As Integer
Private nFormWidth As Integer
Private nNumOfControls As Integer
Private nTop() As Integer
Private nLeft() As Integer
Private nHeight() As Integer
Private nWidth() As Integer
Private nFontSize() As Integer
Private nRightMargin() As Integer
Private bFirstTime As Boolean
Sub Init(frm As Form, Optional nWindState As Variant)
Dim I As Integer
Dim bWinMax As Boolean
bWinMax = Not IsMissing(nWindState)
nFormHeight = frm.Height
nFormWidth = frm.Width
nNumOfControls = frm.Controls.Count - 1
bFirstTime = True
ReDim nTop(nNumOfControls)
ReDim nLeft(nNumOfControls)
ReDim nHeight(nNumOfControls)
ReDim nWidth(nNumOfControls)
ReDim nFontSize(nNumOfControls)
ReDim nRightMargin(nNumOfControls)
On Error Resume Next
For I = 0 To nNumOfControls
If TypeOf frm.Controls(I) Is Line Then
nTop(I) = frm.Controls(I).Y1
nLeft(I) = frm.Controls(I).X1
nHeight(I) = frm.Controls(I).Y2
nWidth(I) = frm.Controls(I).X2
Else
nTop(I) = frm.Controls(I).Top
nLeft(I) = frm.Controls(I).Left
nHeight(I) = frm.Controls(I).Height
nWidth(I) = frm.Controls(I).Width
nFontSize(I) = frm.FontSize
nRightMargin(I) = frm.Controls(I).RightMargin
End If
Next
If bWinMax Or frm.WindowState = 2 Then ' maxim
frm.Height = Screen.Height
frm.Width = Screen.Width
Else
frm.Height = frm.Height * Screen.Height / 7290
frm.Width = frm.Width * Screen.Width / 9690
End If
bFirstTime = True
End Sub
Sub FormResize(frm As Form)
Dim I As Integer
Dim nCaptionSize As Integer
Dim dRatioX As Double
Dim dRatioY As Double
Dim nSaveRedraw As Long
On Error Resume Next
nSaveRedraw = frm.AutoRedraw
frm.AutoRedraw = True
If bFirstTime Then
bFirstTime = False
Exit Sub
End If
If frm.Height < nFormHeight / 2 Then frm.Height = nFormHeight / 2
If frm.Width < nFormWidth / 2 Then frm.Width = nFormWidth / 2
nCaptionSize = 400
dRatioY = 1# * (nFormHeight - nCaptionSize) / (frm.Height - nCaptionSize)
dRatioX = 1# * nFormWidth / frm.Width
On Error Resume Next ' for comboboxes, timeres and other nonsizible controls
For I = 0 To nNumOfControls
If TypeOf frm.Controls(I) Is Line Then
frm.Controls(I).Y1 = Int(nTop(I) / dRatioY)
frm.Controls(I).X1 = Int(nLeft(I) / dRatioX)
frm.Controls(I).Y2 = Int(nHeight(I) / dRatioY)
frm.Controls(I).X2 = Int(nWidth(I) / dRatioX)
Else
frm.Controls(I).Top = Int(nTop(I) / dRatioY)
frm.Controls(I).Left = Int(nLeft(I) / dRatioX)
frm.Controls(I).Height = Int(nHeight(I) / dRatioY)
frm.Controls(I).Width = Int(nWidth(I) / dRatioX)
frm.Controls(I).FontSize = Int(nFontSize(I) / dRatioX) + Int(nFontSize(I) / dRatioX) Mod 2
frm.Controls(I).RightMargin = Int(nRightMargin(I) / dRatioY)
End If
Next
frm.AutoRedraw = nSaveRedraw
End Sub
