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'BY悲伤的独奏曲 Q99425982
'hi.baidu.com/lixilin_bd/blog
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 SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As Long, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long
Private Const WS_EX_LAYERED = &H80000
Private Const GWL_EXSTYLE = (-20)
Private Const LWA_ALPHA = &H1
Private Sub Form_Load()
Me.BackColor = vbBlue
Dim rtn As Long
syl = GetWindowLong(hwnd, GWL_EXSTYLE)
syl = rtn Or WS_EX_LAYERED
SetWindowLong hwnd, GWL_EXSTYLE, syl
SetLayeredWindowAttributes hwnd, vbblue, 190, LWA_ALPHA
End Sub