CODEWITHSUNDEEP
c#wpfwindows
Zeukis
Zeukis

Reputation: 1445

Application.run(Windows) vs Application.run()

What is difference between this three codes?

1.

Window a = new Window ();
a.Show (); // call show

Application b = new Application ();
b.Run (); // call without a

2.

Window a = new Window ();
            // do not call show

Application b = new Application ();
b.Run (a);   // with a

Why work both correctly? And why work this too? 3. 

Window a = new Window ();
a.Show ();  // call show and also call show bellow

Application b = new Application ();
b.Run (a);  // with a

Upvotes: 1

Views: 206

Answers (1)

pushpraj
pushpraj

Reputation: 13679

both are basically meant for message loop, it is the core of windows application which handles the window message like painting, mouse/kbd event etc.

if you use the code below without Application.Run

Window a = new Window ();
a.Show ();

you'll find a frozen window, the reason is that there is no one to tell that window to repaint or handle any event.

so by invoking a message loop via Application.Run, the window starts to work as expected

Application b = new Application ();
b.Run (a);  // with a

Upvotes: 3

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