VB中控件位置大小自动适应窗体变化的三种模式详解

VB中控件位置大小自动适应窗体变化的三种模式详解.doc

代码是无需更改的。

第一种。就是最实用的，就是所有控件的width和height按比例随窗体变化，位置也是当然是按比例哦。控件的字体不变。如下复制到代码：

'改比例，字体不该。最实用

Option Explicit

Private FormOldWidth As Long '保存窗体的原始宽度

Private FormOldHeight As Long '保存窗体的原始高度

Private Sub Form_Load()

Call ResizeInit(Me) '在程序装入时必须加入

End Sub

Private Sub Form_Resize()

Call ResizeForm(Me) '确保窗体改变时控件随之改变

End Sub

'在调用ResizeForm前先调用本函数

Public Sub ResizeInit(FormName As Form)

Dim Obj As Control

FormOldWidth = FormName.ScaleWidth

FormOldHeight = FormName.ScaleHeight

On Error Resume Next

For Each Obj In FormName

Obj.Tag = Obj.Left & " " & Obj.Top & " " & Obj.Width & " " & Obj.Height & " " Next Obj

On Error GoTo 0

End Sub

'按比例改变表单内各元件的大小，在调用ReSizeForm前先调用ReSizeInit函数

Public Sub ResizeForm(FormName As Form)

Dim Pos(4) As Double

Dim i As Long, TempPos As Long, StartPos As Long

Dim Obj As Control

Dim ScaleX As Double, ScaleY As Double

ScaleX = FormName.ScaleWidth / FormOldWidth '保存窗体宽度缩放比例

ScaleY = FormName.ScaleHeight / FormOldHeight '保存窗体高度缩放比例

On Error Resume Next

For Each Obj In FormName

StartPos = 1

For i = 0 To 4

'读取控件的原始位置与大小

TempPos = InStr(StartPos, Obj.Tag, " ", vbTextCompare)

If TempPos > 0 Then

Pos(i) = Mid(Obj.Tag, StartPos, TempPos - StartPos)

StartPos = TempPos + 1

Else

Pos(i) = 0

End If

'根据控件的原始位置及窗体改变大小的比例对控件重新定位与改变大小

Obj.Move Pos(0) * ScaleX, Pos(1) * ScaleY, Pos(2) * ScaleX, Pos(3) * ScaleY Next i

Next Obj

On Error GoTo 0

End Sub

第二种，只位置就是控件的left和top随着变。其他都不变。如果变化大了不好看。如下复制：

Option Explicit

Private ObjOldWidth As Long '保存窗体的原始宽度

Private ObjOldHeight As Long '保存窗体的原始高度

Private ObjOldFont As Single '保存窗体的原始字体比

Private Sub Form_Resize()

'确保窗体改变时控件随之改变

Call ResizeForm(Me)

End Sub

Private Sub Form_Load()

'在程序装入时必须加入

Call ResizeInit(Me)

End Sub

' '在调用ResizeForm前先调用本函数

Public Sub ResizeInit(FormName As Form)

Dim Obj As Control

ObjOldWidth = FormName.ScaleWidth

ObjOldHeight = FormName.ScaleHeight

ObjOldFont = FormName.Font.Size / ObjOldHeight

On Error Resume Next

For Each Obj In FormName

Obj.Tag = Obj.Left & " " & Obj.Top & " " & Obj.Width & " " & Obj.Height & " "

Next Obj

On Error GoTo 0

End Sub

'按比例改变表单内各元件的大小，

'在调用ReSizeForm前先调用ReSizeInit函数

Public Sub ResizeForm(FormName As Form)

Dim Pos(4) As Double

Dim i As Long, TempPos As Long, StartPos As Long

Dim Obj As Control

Dim ScaleX As Double, ScaleY As Double

ScaleX = FormName.ScaleWidth / ObjOldWidth

'保存窗体宽度缩放比例

ScaleY = FormName.ScaleHeight / ObjOldHeight