how can i pass parameters to a window creating function in c#

Unity Engine
1

im creating a drop down menu, where when a button is pressed, a window pops up containing buttons…each button corresponds to an item in a list. the problem is the method that calls the window function is static, and cant contain any variables for gui style etc. how can I pass those type of parameters to the window creating method.

2

You can pass GUIStyle as 5-th parameter in GUI.Window() function.

3

You can pass them with a static variable, that is then visible from outside of the window function. :slight_smile:

4

I tried that, but I want to be able to reuse the dropdown menu several times with different content, the way a normal gui control like a button is used… static variables only hold one value across all of the components so I end up with several lists all with the same thing.

5

yeah but how would I pass a gui style for the buttons that are on the window

6

Each window function get a WindowId parameter (it’s first paramater), you can use like a key to take a style from presaved collection (like Dictionary<int, GUIStyle> as in code bellow).

Dictionary<int, GUIStyle> styles = new Dictionary<int, GUIStyle>();

void OnGUI()
{
   styles.Add(1, new GUIStyle());
   GUI.Window(1, DoMyWindow, "Window 1");
}

void DoMyWindow(int windowId)
{
   GUI.Button(new Rect(0,0, 100, 30), "button", styles[windowId]);
}
7

Or do not use GUI.Window at all :slight_smile:

8

A lambda expression should work just fine here.

void OnGUI()
{
    GUIStyle style = new GUIStyle();
    Rect rect = new Rect();
    GUI.Window(1, rect, (int id) => { WindowContent(style); }, "Window");
}

void WindowContent(GUIStyle style)
{
   //...
}
9

Thabnks for necroing this - it worked :smile: