Option ExplicitPrivate Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long Private Const BM_SETSTATE = &HF3 Dim flag As BooleanPrivate Sub Command1_Click() flag = Not flag SendMessage Command1.hwnd, BM_SETSTATE, flag, ByVal 0& End Sub
Private Const BM_SETSTATE = &HF3
Dim flag As BooleanPrivate Sub Command1_Click()
flag = Not flag
SendMessage Command1.hwnd, BM_SETSTATE, flag, ByVal 0&
End Sub
这个需要在属性里面设置,不能写在代码里面!