CODEWITHSUNDEEP
c#wpfsilverlight
Sarfaraz Nawaz
Sarfaraz Nawaz

Reputation: 361472

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

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)?

Upvotes: 3

Views: 6338

Answers (5)

Rhexis
Rhexis

Reputation: 2542

"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.

Upvotes: 0

Hans Passant
Hans Passant

Reputation: 941545

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.

Upvotes: 4

Marat Khasanov
Marat Khasanov

Reputation: 3848

If you need to handle mouse events of all your application, the best way is to subscribe to InputManager events.

Upvotes: 1

Pavlo Glazkov
Pavlo Glazkov

Reputation: 20746

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.

Upvotes: 8

James Gaunt
James Gaunt

Reputation: 14783

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

Upvotes: 4

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