在文本筐里 除了输入的内容以外（因为有背景图片 要求只要文字部分显示） 能做成透明的吗

>>步骤1----建立新工程。
>>步骤2----编写如下代码：

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_XOR = 3

Private Type POINTAPI
x As Long
Y As Long
End Type

Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type

Private rctClient As RECT, rctFrame As RECT
Private hClient As Long, hFrame As Long

Public Sub MakeTransparent(frm As Form)
GetFrameClientRgn frm
SetWindowRgn frm.hWnd, hFrame, True
End Sub

Private Sub GetFrameClientRgn(frm As Form)
GetWindowRect frm.hWnd, rctFrame
GetClientRect frm.hWnd, rctClient

'将窗口矩形坐标转换为屏幕坐标
Dim lpTL As POINTAPI, lpBR As POINTAPI
lpTL.x = rctFrame.Left
lpTL.Y = rctFrame.Top
lpBR.x = rctFrame.Right
lpBR.Y = rctFrame.Bottom
ScreenToClient frm.hWnd, lpTL
ScreenToClient frm.hWnd, lpBR
rctFrame.Left = lpTL.x
rctFrame.Top = lpTL.Y
rctFrame.Right = lpBR.x
rctFrame.Bottom = lpBR.Y
rctClient.Left = Abs(rctFrame.Left)
rctClient.Top = Abs(rctFrame.Top)
rctClient.Right = rctClient.Right + Abs(rctFrame.Left)
rctClient.Bottom = rctClient.Bottom + Abs(rctFrame.Top)
rctFrame.Right = rctFrame.Right + Abs(rctFrame.Left)
rctFrame.Bottom = rctFrame.Bottom + Abs(rctFrame.Top)
rctFrame.Top = 0
rctFrame.Left = 0

hClient = CreateRectRgn(rctClient.Left, rctClient.Top, _
rctClient.Right, rctClient.Bottom)
hFrame = CreateRectRgn(rctFrame.Left, rctFrame.Top, _
rctFrame.Right, rctFrame.Bottom)

CombineRgn hFrame, hClient, hFrame, RGN_XOR
End Sub

Private Sub Form_Resize()
MakeTransparent Me
End Sub

>>步骤3----编译运行，是不是看到效果了

还是不明白 怎么用那些代码？
发个图给老大看看
我要文本筐的背景色变成透明 没有最好了！
希望老大 能说明白点
我刚学 还懂的不多！ 见谅！

[此贴子已经被作者于2006-12-3 11:31:33编辑过]

已经解决