Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As LongConst CB_GETDROPPEDSTATE = &H157Private Sub Command1_Click() '判断是否已经下拉 rs = SendMessage(Combo1.hwnd, CB_GETDROPPEDSTATE, 0, 0) If rs = 1 Then MsgBox "已经下拉" End If End Sub
'判断是否已经下拉
rs = SendMessage(Combo1.hwnd, CB_GETDROPPEDSTATE, 0, 0)
If rs = 1 Then
MsgBox "已经下拉"
End If
End Sub