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WoWInterface - View Single Post - Dynamically adding and removing frames?
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06-30-20, 06:03 AM   #3
SDPhantom
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To answer a question that shows up a lot here, frames cannot be "removed" from memory. They stay persistent throughout an entire session. The best you can do is recycle frames by use of "Frame Pools".



Here's a simpler way and keeping a separate table just for active frames in a frame pool is unnecessary if you're already keeping track of them in other parts of your code.

Lua Code:
  1. local FramePool={};
  2.  
  3. local function FramePool_Acquire()
  4.     return table.remove(FramePool) or CreateFrame("Frame");--   Returns a frame if there is one in the pool or creates one if empty
  5. end
  6.  
  7. local function FramePool_Release(frame)
  8.     table.insert(frame);--  Stores frame in pool
  9. end

Note: You should create a different pool for each frame template you wish to use in order to keep them from getting mixed up.



If you're feeling adventurous, you might want to take a look at Blizzard's implementation of frame and object pools in SharedXML\Pools.lua.
You'll want to pay attention to CreateFramePool() for a singilar frame pool and CreatePoolCollection() to manage different templates.
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Last edited by SDPhantom : 06-30-20 at 06:09 AM.
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