Buttons within Scroll View not able to communicate

Questions & Answers
1

I have some buttons within a ScrollView.
And they don’t seem to be able to communicate out of the view.
What I have is

function OnGUI () {

if (GUI.Button(new Rect (0, 0, 100, 20), "1")){
	GUI.Label(Rect(150, 0, 200, 20), "You picked IT");
	Debug.Log("this buttons name is working");
}
// Begin the ScrollView
scrollViewVector = GUI.BeginScrollView (Rect (200, 100, 200, 100), scrollViewVector, Rect (0, 0, 400, 400), false, true);

// Put something inside the ScrollView
if (GUI.Button(new Rect (0, 0, 100, 20), "1")){
	GUI.Label(Rect(400, 100, 400, 20), "You picked #1", listStyle);
	Debug.Log("IN BUTTON 1");
	
}

if (GUI.Button (Rect (0,21,100,20), "2")){
	GUI.Label (Rect(200, 70, 200, 20), "You picked #2", listStyle);
	Debug.Log("IN BUTTON 2");
}
	//GUI.Button (Rect (0,0,100,20), "1");
	//GUI.Button (Rect (0,21,100,20), "2");
	GUI.Button (Rect (0,41,100,20), "3");
	GUI.Button (Rect (0,61,100,20), "4");
	GUI.Button (Rect (0,81,100,20), "5");
	GUI.Button (Rect (0,101,100,20), "6");
	GUI.Button (Rect (0,121,100,20), "7");
	GUI.Button (Rect (0,141,100,20), "8");

// End the ScrollView
GUI.EndScrollView();
}

So the first button created is outside the view and works just fine.
But those created inside render and interact but will not communicate.
Thoughts?

2

2 problem: first if you do this :

if (GUI.Button(new Rect (0, 0, 100, 20), "1")){
    GUI.Label(Rect(400, 100, 400, 20), "You picked #1", listStyle);
    Debug.Log("IN BUTTON 1");
}

you can see the label only in the frame in which the button was pressed, so practically invisible … (but log remains in the editor, however)

second if you place your label inside the scrollView the coordinates are relative to it, your scrollView is 200 unit wide and you are placing your label at 200 or 400 (so to the right) and also you are not showing the horizontal scroll bar.

try this:

var visibleLabel : boolean = false;

function OnGUI () {
    //other stuff ..

    scrollViewVector = GUI.BeginScrollView (Rect (200, 100, 200, 100), scrollViewVector, Rect (0, 0, 400, 400), false, true);
    if (GUI.Button(new Rect (0, 0, 100, 20), "1")){
        visibleLabel = true;
        Debug.Log("IN BUTTON 1");
    }
    //....
    GUI.EndScrollView(); 

    if(visibleLabel){
         GUI.Label(Rect(400, 100, 400, 20), "You picked #1", listStyle);
         //absolute coordinates
    }
}
3

Seems that it was the GUI.TextArea (Rect (0, 0, 400, 400));
I commented this out and it is all working.
Buttons within the scroll are working.
So now I just need to figure how to get the interior of the scroll area to be distinguished from the background, as in background color and I am home.
Nice …