Trapping Print Screen Key

[amitabh]

Is there any way to trap "Print Screen" and "Alt" Keys.

Not sure what you mean by "trapping" the alt and print screen keys. But here is how you can tell if they are pressed by using the GetAsyncKeyState API function.

Private Declare Function GetAsyncKeyState _
Lib "user32.dll" (ByVal vKey As Long) As Integer

Private Const VK_MENU = &H12 'either alt key
Private Const VK_SNAPSHOT = &H2C 'print screen

Private Sub Timer1_Timer()

    If GetAsyncKeyState(VK_MENU) Then 
        Msgbox "Alt key pressed"
    ElseIf GetAsyncKeyState(VK_SNAPSHOT) Then
        Msgbox "Print screen key pressed"
    End If

End Sub

[Steve Stunning]

Thanks!! I was asked to add this as a feature to a program I am creating. The user wants to prevent people from capturing the screen of employees photographs displayed on an index.

GetAsyncKeyState will not prevent this from happening. If you want to prevent it, you'd need to create a systemwide hook.