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cocoansviewnswindownspanel

How to create a float window floating above all other windows just like twitter?


The twitter app has a float window when you click the contextual menu "Tweet",is it a NSPanel? How to?


Solution

  • Take a look at NSWindow's setLevel: method:

    Each level in the list groups windows within it in front of those in all preceding groups. Floating windows, for example, appear in front of all normal-level windows. When a window enters a new level, it’s ordered in front of all its peers in that level.

    -- from NSWindow's setLevel: reference.

    You may also find Matt Gemmell's MAAttachedWindow project helpful:

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