How to detect mouse clicks without listening to any mouse events defined in framework controls?

Question

Is it possible to detect mouse clicks without listening to any mouse events defined in framework controls?

I mean, I don't want to write code like :

  control.MouseLeftButtonDown += this.HandleMouseLeftButtonDown;

Yet I want to know if user clicks on the screen or not. Is it possible in C# (WPF or Silverlight)?

Answer 1

You can register a class handler in a static constructor you your main window, for example:

static MainWindow() {
    EventManager.RegisterClassHandler(typeof (MainWindow),
                                      Mouse.MouseDownEvent,
                                      new MouseButtonEventHandler(OnGlobaMouseDown));
}

It will be a global handler for all MouseDown events.

Answer 2

You could use the Win32 API and detect the mouse message WM_MOUSE, something like this:

http://support.microsoft.com/kb/318804

or this example, showing use of the global mouse message WM_MOUSE_LL:

http://www.codeproject.com/KB/cs/globalhook.aspx

Answer 3

This is done by capturing the mouse. Which forces any mouse event to be directed to you, even if it moves outside of the window. Mouse.Capture() method.

Answer 4

如果需要处理所有应用程序的鼠标事件，最好的方法是订阅InputManager事件。

Answer 5

"I mean, I don't want to write code like :

control.MouseLeftButtonDown += this.HandleMouseLeftButtonDown;"

You could always use:

if (Mouse.LeftButton == MouseButtonState.Pressed)
{
     ...
}

You will need to include this though.

using System.Windows.Input;

This works for me in wpf.