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用Vb开发时怎样微调控件在窗体中的位置??
leeapple
2003-05-17 02:17:22
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用Vb开发时怎样微调控件在窗体中的位置??
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James0001
2003-05-17
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VB
窗体
控件
大小随
窗体
大小变化而变化
VB
窗体
控件
大小随
窗体
大小变化自動調整 有
时
窗体
变化后,如改变分辨率后
控件
大小却不能随之改变。手工代码调整实在麻烦,下面的模块实现自动查找
窗体
上
控件
并使其改变大小以适应
窗体
变化。 在Form的Resize事件
中
调用函数Resize_All就能实现
控件
自动调整大小,如: Private Sub Form_Resize() Dim H, i As Integer On Error Resume Next Resize_ALL Me 'Me是
窗体
名,Form1,Form2等等都可以 End Sub 在模块
中
添加以下代码: Public Type ctrObj Name As String Index As Long Parrent As String Top As Long Left As Long Height As Long Width As Long ScaleHeight As Long ScaleWidth As Long End Type Private FormRecord() As ctrObj Private ControlRecord() As ctrObj Private bRunning As Boolean Private MaxForm As Long Private MaxControl As Long Private Const WM_NCLBUTTONDOWN = &HA1 Private Declare Function SendMessage Lib "USER32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Private Declare Function ReleaseCapture Lib "USER32" () As Long Function ActualPos(plLeft As Long) As Long If plLeft < 0 Then ActualPos = plLeft + 75000 Else ActualPos = plLeft End If End Function Function FindForm(pfrmIn As Form) As Long Dim i As Long FindForm = -1 If MaxForm > 0 Then For i = 0 To (MaxForm - 1) If FormRecord(i).Name = pfrmIn.Name Then FindForm = i Exit Function End If Next i End If End Function Function AddForm(pfrmIn As Form) As Long Dim FormControl As Control Dim i As Long ReDim Preserve FormRecord(MaxForm + 1) FormRecord(MaxForm).Name = pfrmIn.Name FormRecord(MaxForm).Top = pfrmIn.Top FormRecord(MaxForm).Left = pfrmIn.Left FormRecord(MaxForm).Height = pfrmIn.Height FormRecord(MaxForm).Width = pfrmIn.Width FormRecord(MaxForm).ScaleHeight = pfrmIn.ScaleHeight FormRecord(MaxForm).ScaleWidth = pfrmIn.ScaleWidth AddForm = MaxForm MaxForm = MaxForm + 1 For Each FormControl In pfrmIn i = FindControl(FormControl, pfrmIn.Name) If i < 0 Then i = AddControl(FormControl, pfrmIn.Name) End If Next FormControl End Function Function FindControl(inControl As Control, inName As String) As Long Dim i As Long FindControl = -1 For i = 0 To (MaxControl - 1) If ControlRecord(i).Parrent = inName Then If ControlRecord(i).Name = inControl.Name Then On Error Resume Next If ControlRecord(i).Index = inControl.Index Then FindControl = i Exit Function End If On Error GoTo 0 End If End If Next i End Function Function AddControl(inControl As Control, inName As String) As Long ReDim Preserve ControlRecord(MaxControl + 1) On Error Resume Next ControlRecord(MaxControl).Name = inControl.Name ControlRecord(MaxControl).Index = inControl.Index ControlRecord(MaxControl).Parrent = inName If TypeOf inControl Is Line Then ControlRecord(MaxControl).Top = inControl.Y1 ControlRecord(MaxControl).Left = ActualPos(inControl.X1) ControlRecord(MaxControl).Height = inControl.Y2 ControlRecord(MaxControl).Width = ActualPos(inControl.X2) Else ControlRecord(MaxControl).Top = inControl.Top ControlRecord(MaxControl).Left = ActualPos(inControl.Left) ControlRecord(MaxControl).Height = inControl.Height ControlRecord(MaxControl).Width = inControl.Width End If inControl.IntegralHeight = False On Error GoTo 0 AddControl = MaxControl MaxControl = MaxControl + 1 End Function Function PerWidth(pfrmIn As Form) As Long Dim i As Long i = FindForm(pfrmIn) If i < 0 Then i = AddForm(pfrmIn) End If PerWidth = (pfrmIn.ScaleWidth * 100) \ FormRecord(i).ScaleWidth End Function Function PerHeight(pfrmIn As Form) As Double Dim i As Long i = FindForm(pfrmIn) If i < 0 Then i = AddForm(pfrmIn) End If PerHeight = (pfrmIn.ScaleHeight * 100) \ FormRecord(i).ScaleHeight End Function Public Sub ResizeControl(inControl As Control, pfrmIn As Form) On Error Resume Next Dim i As Long Dim widthfactor As Single, heightfactor As Single Dim minFactor As Single Dim yRatio, xRatio, lTop, lLeft, lWidth, lHeight As Long yRatio = PerHeight(pfrmIn) xRatio = PerWidth(pfrmIn) i = FindControl(inControl, pfrmIn.Name) If inControl.Left < 0 Then lLeft = CLng(((ControlRecord(i).Left * xRatio) \ 100) - 75000) Else lLeft = CLng((ControlRecord(i).Left * xRatio) \ 100) End If lTop = CLng((ControlRecord(i).Top * yRatio) \ 100) lWidth = CLng((ControlRecord(i).Width * xRatio) \ 100) lHeight = CLng((ControlRecord(i).Height * yRatio) \ 100) If TypeOf inControl Is Line Then If inControl.X1 < 0 Then inControl.X1 = CLng(((ControlRecord(i).Left * xRatio) \ 100) - 75000) Else inControl.X1 = CLng((ControlRecord(i).Left * xRatio) \ 100) End If inControl.Y1 = CLng((ControlRecord(i).Top * yRatio) \ 100) If inControl.X2 < 0 Then inControl.X2 = CLng(((ControlRecord(i).Width * xRatio) \ 100) - 75000) Else inControl.X2 = CLng((ControlRecord(i).Width * xRatio) \ 100) End If inControl.Y2 = CLng((ControlRecord(i).Height * yRatio) \ 100) Else inControl.Move lLeft, lTop, lWidth, lHeight inControl.Move lLeft, lTop, lWidth inControl.Move lLeft, lTop End If End Sub Public Sub ResizeForm(pfrmIn As Form) Dim FormControl As Control Dim isVisible As Boolean Dim StartX, StartY, MaxX, MaxY As Long Dim bNew As Boolean If Not bRunning Then bRunning = True If FindForm(pfrmIn) < 0 Then bNew = True Else bNew = False End If If pfrmIn.Top < 30000 Then isVisible = pfrmIn.Visible On Error Resume Next If Not pfrmIn.MDIChild Then On Error GoTo 0 ' ' pfrmIn.Visible = False Else If bNew Then StartY = pfrmIn.Height StartX = pfrmIn.Width On Error Resume Next For Each FormControl In pfrmIn If FormControl.Left + FormControl.Width + 200 > MaxX Then MaxX = FormControl.Left + FormControl.Width + 200 End If If FormControl.Top + FormControl.Height + 500 > MaxY Then MaxY = FormControl.Top + FormControl.Height + 500 End If If FormControl.X1 + 200 > MaxX Then MaxX = FormControl.X1 + 200 End If If FormControl.Y1 + 500 > MaxY Then MaxY = FormControl.Y1 + 500 End If If FormControl.X2 + 200 > MaxX Then MaxX = FormControl.X2 + 200 End If If FormControl.Y2 + 500 > MaxY Then MaxY = FormControl.Y2 + 500 End If Next FormControl On Error GoTo 0 pfrmIn.Height = MaxY pfrmIn.Width = MaxX End If On Error GoTo 0 End If For Each FormControl In pfrmIn ResizeControl FormControl, pfrmIn Next FormControl On Error Resume Next If Not pfrmIn.MDIChild Then On Error GoTo 0 pfrmIn.Visible = isVisible Else If bNew Then pfrmIn.Height = StartY pfrmIn.Width = StartX For Each FormControl In pfrmIn ResizeControl FormControl, pfrmIn Next FormControl End If End If On Error GoTo 0 End If bRunning = False End If End Sub Public Sub SaveFormPosition(pfrmIn As Form) Dim i As Long If MaxForm > 0 Then For i = 0 To (MaxForm - 1) If FormRecord(i).Name = pfrmIn.Name Then FormRecord(i).Top = pfrmIn.Top FormRecord(i).Left = pfrmIn.Left FormRecord(i).Height = pfrmIn.Height FormRecord(i).Width = pfrmIn.Width Exit Sub End If Next i AddForm (pfrmIn) End If End Sub Public Sub RestoreFormPosition(pfrmIn As Form) Dim i As Long If MaxForm > 0 Then For i = 0 To (MaxForm - 1) If FormRecord(i).Name = pfrmIn.Name Then If FormRecord(i).Top < 0 Then pfrmIn.WindowState = 2 ElseIf FormRecord(i).Top < 30000 Then pfrmIn.WindowState = 0 pfrmIn.Move FormRecord(i).Left, FormRecord(i).Top, FormRecord(i).Width, FormRecord(i).Height Else pfrmIn.WindowState = 1 End If Exit Sub End If Next i End If End Sub Public Sub Resize_ALL(Form_Name As Form) Dim OBJ As Object For Each OBJ In Form_Name ResizeControl OBJ, Form_Name Next OBJ End Sub Public Sub DragForm(frm As Form) On Local Error Resume Next Call ReleaseCapture Call SendMessage(frm.hwnd, WM_NCLBUTTONDOWN, 2, 0) End Sub
让
VB
可以调用DLL
控件
中
的
窗体
为MDI子
窗体
让
VB
可以调用DLL
控件
中
的
窗体
为MDI子
窗体
vb
6.0
控件
适应
窗体
大小
vb
6.0自适应
窗体
大小示例源代码(工程文件),附带文档介绍原理,针对少数、多数
控件
、含不希望调节尺寸的隐藏
控件
的处理方法。
VB
窗体
最大化后
控件
跟随变化
VB
窗体
最大化后
控件
跟随变化,很好的例子,可以学习下
VB
中
在
窗体
中
的
控件
各种移动方法
希望
窗体
的
控件
移动,这里有几种移动的方法的源代码。希望对大家有帮助!
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