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[求助]
各位大神,vb如何通过拖动实现控件大小的改变??
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在网上搜了一下,只看到一个针对picture控件的程序: Private Const GWL_STYLE = (-16) Private Const WS_THICKFRAME = &H40000 Private Const SWP_NOSIZE = &H1 Private Const SWP_NOZORDER = &H4 Private Const SWP_NOMOVE = &H2 Private Const SWP_DRAWFRAME = &H20 Private Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long Private Sub ControlSize(ControlName As Control, SetTrue As Boolean) Dim dwStyle As Long dwStyle = GetWindowLong(ControlName.hwnd, GWL_STYLE) If SetTrue Then dwStyle = dwStyle Or WS_THICKFRAME Else dwStyle = dwStyle - WS_THICKFRAME End If dwStyle = SetWindowLong(ControlName.hwnd, GWL_STYLE, dwStyle) SetWindowPos ControlName.hwnd, ControlName.Parent.hwnd, 0, 0, 0, 0, SWP_NOZORDER Or SWP_NOSIZE Or SWP_NOMOVE Or SWP_DRAWFRAME End Sub Private Sub Form_Load() ControlSize picture1, True End Sub 这个程序能够实现在运行时,拖动picture改变它的大小,但是将语言中的picture1换成frame1或者text1后,运行程序时就会提示“实时错误提示13”,“类型不匹配”,求大神 们帮忙解决一下,如何让frame和text也可以拖动改变大小,,小弟不胜感激。 |
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