MouseButtonState Enumerazione

Definizione

Specifica i possibili stati di un pulsante del mouse.Specifies the possible states of a mouse button.

public enum class MouseButtonState
public enum MouseButtonState
type MouseButtonState = 
Public Enum MouseButtonState
Ereditarietà
MouseButtonState

Campi

Pressed 1

Il pulsante è premuto.The button is pressed.

Released 0

Il pulsante è rilasciato.The button is released.

Esempi

Nell'esempio seguente viene illustrato un gestore eventi del mouse che determina i pulsanti attualmente premuti controllando lo stato del pulsante di ogni pulsante del mouse.The following example shows a mouse event handler that determines which buttons are currently pressed by checking the button state of each mouse button.

private void MouseDownHandler(object sender, MouseEventArgs e)
{
    if (e.RightButton == MouseButtonState.Pressed)
    {
        MessageBox.Show("The Right Mouse Button is pressed");
    }

    if (e.LeftButton == MouseButtonState.Pressed)
    {
        MessageBox.Show("The Left Mouse Button is pressed");
    }

    if (e.MiddleButton == MouseButtonState.Pressed)
    {

        MessageBox.Show("The Middle Mouse Button is pressed");
    }

    if (e.XButton1 == MouseButtonState.Pressed)
    {
        MessageBox.Show("The XButton1 Mouse Button is pressed");
    }

    if (e.XButton2 == MouseButtonState.Pressed)
    {
        MessageBox.Show("The XButton2 Mouse Button is pressed");
    }
}
Private Sub MouseDownHandler(ByVal sender As Object, ByVal e As MouseEventArgs)
    If e.RightButton = MouseButtonState.Pressed Then
        MessageBox.Show("The Right Mouse Button is pressed")
    End If

    If e.LeftButton = MouseButtonState.Pressed Then
        MessageBox.Show("The Left Mouse Button is pressed")
    End If

    If e.MiddleButton = MouseButtonState.Pressed Then

        MessageBox.Show("The Middle Mouse Button is pressed")
    End If

    If e.XButton1 = MouseButtonState.Pressed Then
        MessageBox.Show("The XButton1 Mouse Button is pressed")
    End If

    If e.XButton2 = MouseButtonState.Pressed Then
        MessageBox.Show("The XButton2 Mouse Button is pressed")
    End If
End Sub

Commenti

L' MouseButtonState enumerazione specifica le costanti che sono correlate allo stato di un pulsante del mouse.The MouseButtonState enumeration specifies constants which correlate to the state of a mouse button.

Si applica a

Vedi anche