GUI.DragWindow ... doesn't work?

Unity Engine
1 
var confirmationMessage : String = "Are you really sure you want to do that? I'm not sure it's such a great idea.";


function OnGUI () {
	// Make a background box
	
	var windowRect : Rect = Rect (Screen.width - 340, Screen.height - 140, 320, 120);
	
	windowRect = GUI.Window (0, windowRect, winConfirm, "Confirmation");
}

function winConfirm (windowID : int) {
	GUI.Label (Rect (10, 20, 300, 60), confirmationMessage);
	
	// Make the first button. If it is pressed, Application.Loadlevel (1) will be executed
	if (GUI.Button (Rect (140,90,80,20), "Cancel")) {
		print( "Cancel" );
	}

	// Make the second button.
	if (GUI.Button (Rect (230,90,80,20), "OK")) {
		print( "OK" );
	}
	
	// Make window draggable
	GUI.DragWindow (); // (Rect (0,0, 10000, 20));
}

Finally started playing with the new GUI code. It looks great … but I can’t make my windows draggable. No errors, but no dragging.

Bug or wetware error?

2

You’re explicitly setting windowRect every GUI call. Just define it once (make it a global var and move that line out of OnGUI into Start or something), so the dragging has a chance to update windowRect.

–Eric

2 Likes
3

Isn’t that how windows work?

Here’s the sample code from the documentation. It doesn’t work either.

var windowRect = Rect (20, 20, 120, 50);

function OnGUI () {
  // Register the window.
  windowRect = GUI.Window (0, windowRect, DoMyWindow, "My Window");
}

// Make the contents of the window
function DoMyWindow (windowID : int) {
  // Make a very long rect that is 20 pixels tall.
  // This will make the window be resizable by the top title bar - no matter how wide it gets
  GUI.DragWindow (Rect (0,0, 10000, 20));
}

Edit:

I tried moving the call as you suggested anyway – it causes errors and still doesn’t work.

4

Nope…think of OnGUI like Update. If you assign windowRect in OnGUI, then it’s reset every frame (or twice a frame; however often the GUI is updated). So naturally dragging a window isn’t going to work like that, since you’re setting it back to the original position every GUI call.

Yes it does. :slight_smile: What isn’t working for you? Is it just not dragging? Can’t see why…I cut pasted that into a script and it works fine.

Hmm…you’re not naming the scripts the same thing as a Unity class, are you? (Like “GUI” or something.)

–Eric

5

Ah – wetware error on my part :slight_smile:

I misinterpreted your original response.

Thanks again!

6

Here you go it has a text field and button.

var stringToEdit : String = "Hello World";
var windowRect : Rect = Rect (20, 20, 665, 50);


function OnGUI () {
     //Register the window.
    windowRect = GUI.Window (0, windowRect, DoMyWindow, "Text");
	
}

// Make the contents of the window 
function DoMyWindow (windowID : int) {
//text field 
  stringToEdit = GUI.TextField (Rect (5, 20, 600, 20), stringToEdit, 500);
	//Button
	if (GUI.Button (Rect (610,20,50,20), "text")) {
	}
	
    GUI.DragWindow (Rect (-611, 1, 600, 20));
}

Bikebreck

1 Like
7

Took me longer than I’d like to figure this out here in 2020, so I’ll add what I missed.

GUI.Window returns the new, potentially dragged position of the window, and you need to actively assign it to the windowRect variable you created, or dragging doesn’t work!

windowRect = GUI.Window(0, windowRect, DoMyWindow, "My Window");

Obvious on a close reading of the code, but it took me quite awhile.

2 Likes
8

Thank you so much!