WoWInterface - Drawing a square (basic noob question)

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SegFault

06-21-21 04:54 AM

Drawing a square (basic noob question)

Hi,

I'm trying to draw a red square. I've searched for over an hour and it seems the "backdrop" api was changed in 9.0

Anyway, here is my code:

Code:

function HelloWorld() 

  print("Hello, World!"); 

  

  local p = CreateFrame("Frame", nil, self, BackdropTemplateMixin and "BackdropTemplate")

  p:SetWidth(100)

  p:SetHeight(100)

  p:SetBackdrop({backdropColor=CreateColor(1,0,0,1)})

  p:SetBackdropColor(1,0,0,1)

  p:SetPoint("TOPLEFT", 100, -100)

  p:Show()

end

I got some of the code from this thread: https://www.wowinterface.com/forums/...d.php?p=336419

This displays nothing however.

I'd appreciate if someone could please point me in the right direction...

Xrystal

06-21-21 10:21 AM

It might be that you have to use the full set of options with SetBackdrop. Take a look at https://wowpedia.fandom.com/wiki/API_Frame_SetBackdrop where it gives you a more complete example.

Fizzlemizz

06-21-21 01:24 PM

If you just want a coloured square, it might be easier to use a texture:

Lua Code:

local p = CreateFrame("Frame", nil, UIParent)
p:SetWidth(100)
p:SetHeight(100)
p:SetPoint("TOPLEFT", 100, -100)
p.Texture = p:CreateTexture()
p.Texture:SetAllPoints()
p.Texture:SetColorTexture(1, 0, 0)

UIParent is the frame that hides when you Alt-Z. Using that as the parent of your top level frame(s) will hide all your frames also.

SegFault

07-02-21 03:50 AM

Quote:

Originally Posted by Fizzlemizz (Post 339435)

If you just want a coloured square, it might be easier to use a texture:

Lua Code:

local p = CreateFrame("Frame", nil, UIParent)
p:SetWidth(100)
p:SetHeight(100)
p:SetPoint("TOPLEFT", 100, -100)
p.Texture = p:CreateTexture()
p.Texture:SetAllPoints()
p.Texture:SetColorTexture(1, 0, 0)

UIParent is the frame that hides when you Alt-Z. Using that as the parent of your top level frame(s) will hide all your frames also.

Thank you very much, I ended up doing this.

Although I didn't call SetAllPoints. What does it do? It seems to work fine without that call.

Fizzlemizz

07-02-21 07:37 AM

Quote:

Originally Posted by SegFault (Post 339510)

What does it do?

It anchors the texture to the same points as the parent frame. The same as

Lua Code:

p.Texture:SetPoint("TOPLEFT", p)
p.Texture:SetPoint("BOTTOMRIGHT", p)

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