sizing BIG btn

Unity Engine
1

HI there,
I am relatively new to Unity GUI so forgive me if this is an obvious answer but… I am creating a GUI btn. It must be 90% of the screen. To run some tests, I imported a texture, so I can see the dimensions of the btn (it will be invisible when all said and done). I set my game screen Free Aspect to iPhone Tall and placed this code in onGUI()

var bigBtn = GUI.Button(Rect(10, 10,Screen.width, Screen.height), boxImage, guiStyle);

however, the width and length of the screen are not accurately portrayed. The box, (a full bleed solid colour) of 256x256 seems to remain at 256 by 256. So the positioning is correct but the sizing, I was hoping for is not.

So, I changed the code in sizing to…
Screen.width10, Screen.height10
…yet it does nothing. However, when I divide the height and width it does shrink it.

Basically the issue is, that it will not grow. Ultimately this btn will be invisible, and will not need a texture, so How do I best go about insuring I get the size I want.

2

I would create 4 variables x,y,sizeX,sizeY and just pass them into there then position and size how you like. Then after that get the values and place them in your code. So it would be like this (x,y,sizeX,sizeY,) You can then edit in the indspector