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simple questions new to this api.

I am simply trying to get the screen size in X to pass on to my exp bar background for dynamic ui scaling, but cannot seem to find it(the way to return screen size) anywhere...
can anyone help?
I did look on the wiki but saw no clear answer...and the wiki is not the easiest to navigate if you are new to this kind of coding.

Quote:

Originally Posted by justinbarrett (Post 13120)

Try:

Lua Code:

GuiRoot:GetWidth()  -- for the width
GuiRoot:GetHeight() -- for the height

ty for your response.
using this..

Code:

local screensizex = GuiRoot:GetWidth()

UI_BackgroundWindowBackdrop:SetValue(screensizeX)

I get this error
"attempt to index a nil value stack traceback"(then pointing to the function)
GetWidth() is expecting a value maybe dimension.x or something?
or is there a better place to ask such beginner questions?

Quote:

Originally Posted by justinbarrett (Post 13128)

ty for your response.
using this..

Code:

local screensizex = GuiRoot:GetWidth()

UI_BackgroundWindowBackdrop:SetValue(screensizeX)

Lua is case sensative

Lua Code:

--Lua is case senstaive on the first line you have screensizex 
local screensizex = GuiRoot:GetWidth()
--but on the second you use screensizeX
UI_BackgroundWindowBackdrop:SetValue(screensizeX)
 
-- That wont work make them match somehow, for example change the first line to:
local screensizeX = GuiRoot:GetWidth()

I don't know what: UI_BackgroundWindowBackdrop is, I'm assuming a backdrop control, so I'm guessing your trying to resize that control to be the width of the screen?
So your probably wanting to do:

Lua Code:

-- This:
UI_BackgroundWindowBackdrop:SetWidth(screensizeX)
-- Instead of this:
UI_BackgroundWindowBackdrop:SetValue(screensizeX)

The General Authoring Discussion forum: General Authoring Discussion
Or Lua/XML Help forum: Lua/XML Help

I am aware of the case sensitivity, that was a typo on my part. I still have the error...I will poke around some more , and if I am just spinning my wheels I will head over to the lua/xml help forum. thanks a lot...I've never used lua or xml...so this is all a bit odd coming from a C coding background. but in a sense it is a lot easier also....anyway ty.

Quote:

Originally Posted by justinbarrett (Post 13130)

Ok, well other than that there is nothing wrong with it. I even copy/pasted & tested it in case there is an type-o I wasn't seeing, works fine.

If you don't figure it out though you can post your code & the exact error message the game gives you I'll look at it.

If you need to span the whole screen width, you don't need to know it. Use anchors instead.

Lua Code:

UI_BackgroundWindowBackdrop:SetAnchor(TOPLEFT, GuiRoot, TOPLEFT, 0, 0)
UI_BackgroundWindowBackdrop:SetAnchor(BOTTOMRIGHT, GuiRoot, TOPRIGHT, 0, 50 --[[ this will be the height]])

edit: regarding the error, I'd say UI_BackgroundWindowBackdrop is nil (operator : is the attempt to index it). If you have that control in XML, make sure you include the .xml file in your manifest.

Quote:

Originally Posted by merlight (Post 13132)

edit: regarding the error, I'd say UI_BackgroundWindowBackdrop is nil (operator : is the attempt to index it). If you have that control in XML, make sure you include the .xml file in your manifest.

Ah, good point I didn't think of that, probably.

I can manipulate the bar that I have already setup in the gui xml, and there is a backdrop there as well... this is why I am confused....I am positive it is some small error in my code....but I went to sleep after tinkering for a just a bit last night...so I will take another crack when I fresh eyes in a bit.

EDIT: Seems to be working fine now??? typical....once in a while we just need to quit ESO alltogether and reopen files :)
I feel silly...but hey, this stuff happens.