如果得知用戶按下了PRINT SCREEN鍵,该怎么处理

如果得知用戶按下了PRINT SCREEN鍵
問題如標題
PRINT   SCREEN鍵就是那個打印屏幕的那個鍵
我想在用戶不管做什麼時,只要一按PRINT   SCREEN鍵,就響應我的代碼.

[解决办法]
Private Declare Function GetAsyncKeyState Lib "user32 " (ByVal vKey As Long) As Integer
Private Const VK_SNAPSHOT = &H2C

Private Sub Timer1_Timer()
if GetAsyncKeyState(VK_SNAPSHOT ) <> 0
Then MsgBox "Print Screen "
endif
End Sub