Did you notice this SetHidden behaviour ?

[Fathis Ules]

Hello

I notice on my frame I want to show interactively something with SetHidden(false) but it does not show up, until I close and show again the main frame, technically the component is here but invisible and the IsHidden() is reporting false, so it is just invisible

Developped few mods in WoW and warhammer and I did not notice a single time this issue, so what the heck under this ???

[archpoet]

Without seeing any code, based entirely on your description it sounds like you're checking IsHidden() on the Parent instead of the hidden child.

Something else that's been pointed out to me, however, is that when the main frame IsHidden(true) it is no longer able to continue any background processes. It's almost like a "freeze," because they resume again OnShow()

Good Luck.

[Seerah]

In ESO, as in WoW, children inherit the show-state of their parent. If you have the parent set to hide, then the child will hide as well.

[Fathis Ules]

//edit: Found the workaround anyway it is to change the parent to another control but it is not really explaining why the API returns hidden while the control was visible on screen

In wow if you test this the header is hidden and IsHidden would return true

In Eso, the frame is NOT hidden and IsHidden returns true (well to say true: it is hidden but still visible on your screen)

To use, run /buggy to show the global frame + header and /buggy2 supposed to hide the header

local frameGlobal     = CreateControl(nil, GuiRoot,        CT_TOPLEVELCONTROL)
local frameHeader     = CreateControl(nil, frameGlobal,    CT_TOPLEVELCONTROL)
local backdropHeader  = CreateControl(nil, frameHeader,    CT_BACKDROP)

frameGlobal:SetHeight(500)
frameGlobal:SetWidth(1024)
frameGlobal:SetAnchor(TOPLEFT, GuiRoot, TOPLEFT, 512 , 250)

frameHeader:SetHeight(50)
frameHeader:SetAnchor(TOPLEFT, frameGlobal, TOPLEFT, 0 , 0)
frameHeader:SetAnchor(TOPRIGHT, frameGlobal, TOPRIGHT, 0 , 0)

backdropHeader:SetAnchorFill(frameHeader)
backdropHeader:SetEdgeColor(1, 1, 1, 1)
backdropHeader:SetEdgeTexture("", 128, 1, 1, 0)
backdropHeader:SetCenterColor(128/255, 128/255, 128/255, 1)
backdropHeader:SetCenterTexture("", 16, 0)
backdropHeader:SetInsets(5, 5, -5, -5)

frameGlobal:SetHidden(true)

SLASH_COMMANDS["/buggy"] = function() frameGlobal:SetHidden(false) end
SLASH_COMMANDS["/buggy2"] = function() frameHeader:SetHidden(true) d("frameHeader:IsHidden(): "..tostring(frameHeader:IsHidden())) end

[BadVolt]

Originally Posted by Fathis Ules Hello I notice on my frame I want to show interactively something with SetHidden(false) but it does not show up, until I close and show again the main frame, technically the component is here but invisible and the IsHidden() is reporting false, so it is just invisible Developped few mods in WoW and warhammer and I did not notice a single time this issue, so what the heck under this ???

SetHidden is not the only way to hide something. Try SetAlpha(1)

[Fathis Ules]

yeah thanks , seems to do the trick with SetAlpha, still can't believe a so simple API than SetHidden() is so buggy ;(

[ckaotik]

Originally Posted by BadVolt SetHidden is not the only way to hide something. Try SetAlpha(1)

This. This absolutely is very very annoying. What I noticed as the reason for alpha=0 in my case was that the default UI runs animations on things and those don't reset cleanly.

ComparativeTooltip1.showAnimation:PlayFromStart() -- fade in animation, sets alpha to 1
ComparativeTooltip1.showAnimation:PlayFromEnd() -- fade out animation, sets alpha to 0 but doesn't touch :IsHidden()

[BadVolt]

It don't looks like a bug, more like a feature.
Since SetHidden is bool, and SetAlpha is float and can get variables between 0-1. Moreover, you will surely want to hide some element with alpha 0.5. If SetHidden will change alpha value, you will have to return it manually after each hide.

[Stormknight]

Go check properties for the controls and look at the ones for inheriting ?

Edit: actually, it's because you defined your header frame as a top level control, which doesn't inherit hidden. Change it to a different control that is supposed to inherit properties.