vb6 - 使用 VB6 的半透明窗体

Question

是否可以创建一个半透明的表单，它应该在任何打开的窗口上都可见，而不是隐藏在后面？请指导!

Answer 1

当然，请参阅 Karl Peterson 的“半透明”示例:http://vb.mvps.org/samples/Translucent/

要使窗体在其他窗口上可见，您需要使用 SetWindowPos API 函数。

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 Const HWND_TOPMOST = -1
Private Const SWP_NOMOVE = &H2
Private Const SWP_NOSIZE = &H1
Private Const OnTopFlags = SWP_NOMOVE Or SWP_NOSIZE

Public Sub FormOnTop(frm As Form)
    Call SetWindowPos(frm.hWnd, HWND_TOPMOST, 0&, 0&, 0&, 0&, OnTopFlags)
End Sub