the GUI.Window's WindowFunction in C# _help!_

Unity Engine
1

How do I use the GUI.Window in C#? Every example I can find is done in javascript. I’m having problems getting the WindowFunction parameter to work.

Should I be creating a Delegate for the WindowFunction?

thanks.

2

I’m doing something like this (but the Window doesn’t appear)…

private GUI.WindowFunction winFunc;
private Rect winRect;

void Start()
{
   winRect = new Rect(10,10,100,100);
   winFunc = new GUI.WindowFunction(this.ShowWindow,0);
}

void OnGUI()
{
   winRect = GUI.Window(0,winRect,winFunc,"Window Name");
}

void ShowWindow(int windowId)
{
   Debug.Log("testing. This never displays!");
}
3

Does GUI.WindowFunction even exist? I can’t see it in the docs.

Anyway, here’s how I’d translate the Javascript sample code for GUI.Window:

using UnityEngine;
using System.Collections;

public class GUIWindowTest : MonoBehaviour
{
	Rect windowRect = new Rect(20, 20, 120, 50);

	void OnGUI()
	{
		// Register the window. Notice the 3rd parameter 
		windowRect = GUI.Window(0, windowRect, DoMyWindow, "My Window");
	}

	// Make the contents of the window
	void DoMyWindow(int windowID)
	{
		if(GUI.Button(new Rect(10,20,100,20), "Hello World"))
			Debug.Log("Got a click");
	}
}
4

Neil,

Your example is the first way I tried it, but it didn’t work. So then I decided that the 3rd parameter must be a c# function pointer (aka Delegate). Yes the GUI.WindowFunction does exist.
However, so far, neither way works. The Debug text isn’t even displaying, so the “DoMyWindow” function isn’t being called.

:?: :?

5

Funny, that code works for me.

EDIT: I just tried it like this, and it also works:

using UnityEngine;
using System.Collections;

public class GUIWindowTest : MonoBehaviour
{
	Rect windowRect = new Rect(20, 20, 120, 50);
	GUI.WindowFunction windowFunction;

	void Start()
	{
		windowFunction = DoMyWindow;
	}

	void OnGUI()
	{
		windowRect = GUI.Window(0, windowRect, windowFunction, "My Window");
	}

	void DoMyWindow(int windowID)
	{
		if(GUI.Button(new Rect(10,20,100,20), "Hello World"))
			Debug.Log("Got a click");

		GUI.DragWindow();
	}
}

I imagine GUI.WindowFunction is just delegate void Function(int), which maybe explains why it isn’t documented in the list of classes.

I think you must have some other problem that’s preventing this from working.

6

Your c# example, is working?

EDIT: Nevermind. I found the problem.

7

I just discovered that if I remove “useGUILayOut = false”, the Window is displayed! (I didn’t show this in my code example, but it was in my real code.)

void Awake()
{
   useGUILayout = false;  // This keeps the GUI Window from displaying!!!
}

FYI… I’m doing iPhone development, the useGUILayout=false line is recommended for performance reasons.

8

actually the safer line of code would be “window.Show”, the reason I suggest this is because if unity makes any updates Show may have more functionality than a simple variable…

for those of you just tuning in here is a much cleaner example of code in C#

using UnityEngine;
using UnityEditor;
public class Window : EditorWindow {
    string myString = "Hello World";
    bool groupEnabled;
    bool myBool = true;
    float myFloat = 1.23f;

    Rect windowRect = new Rect(0, 0, 100, 100);
    int index = 0;

    // Add menu named "My Window" to the Window menu
    [MenuItem ("Window/My Window")]
    static void Init () {
        // Get existing open window or if none, make a new one:
        Window window = (Window)EditorWindow.GetWindowWithRect(typeof(Window), new Rect(0,0,200,200), true, "Window");
        window.Show ();
    }
    
    void OnGUI () {
        GUILayout.Label ("Base Settings", EditorStyles.boldLabel);
            myString = EditorGUILayout.TextField ("Text Field", myString);
        
        groupEnabled = EditorGUILayout.BeginToggleGroup ("Optional Settings", groupEnabled);
            myBool = EditorGUILayout.Toggle ("Toggle", myBool);
            myFloat = EditorGUILayout.Slider ("Slider", myFloat, -3, 3);



        EditorGUILayout.EndToggleGroup ();
    }
}
9

that does not exist on normal gui, only on editor objects

10

Hey thanks man for the code.
I have been trying to do this for hours.