VB的frame BackColor透明

来源：百度知道 编辑：UC知道 时间：2024/05/06 08:45:57
怎么把frame的背景色调成透明的啊（没有背景色）
在属性里找不到啊
应该写什么代码?

Private Declare Function GetWindowRect Lib "user32" (ByVal hWnd As _
Long, lpRECT As RECT) As Long

Private Declare Function GetClientRect Lib "user32" (ByVal hWnd As _
Long, lpRECT As RECT) As Long

Private Declare Function CombineRgn Lib "gdi32" (ByVal hDestRgn As _
Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As Long, ByVal _
nCombineMode As Long) As Long

Private Declare Function CreateRectRgn Lib "gdi32" (ByVal X1 As Long, _
ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long

Private Declare Function ScreenToClient Lib "user32" (ByVal hWnd As _
Long, lpPoint As POINTAPI) As Long

Private Declare Function SetWindowRgn Lib "user32" (ByVal hWnd As _
Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long

Const RGN_AND = 1
Const RGN_COPY = 5
Const R