What are "OgreGLView callbacks"? Topic is solved

[jwwalker]

In the Ogre 2.3 documentation of

Code: Select all

Ogre::Root::createRenderWindow()

, the discussion of the

Code: Select all

externalWindowHandle

parameter says:

OS X Cocoa: OgreGLView address as an integer. You can pass NSView or NSWindow too, but should perform OgreGLView callbacks into the Ogre manually.

But I can't find any documentation of OgreGLView. There are classes OgreGL3PlusView and OgreMetalView, but I don't see anything about callbacks.

[dark_sylinc]

I have no idea. It comes from Ogre 1.x era.

A ticket from Ogre 1.x on Github talks about it.

I suspect it means you need to provide a pointer as integer to a class created by yourself that implements OgreGL3PlusView (see RenderSystems/GL3Plus/src/windowing/OSX/OgreOSXCocoaView.mm and OgreOSXCocoaWindow.mm)

As far as I can see the main difference from providing a OgreGL3PlusView vs (a regular NSWindow) is that Ogre will call setOgreWindow, so that you can later call things like windowMovedOrResized or swapBuffers.

If you don't pass a OgreGL3PlusView (but rather just a regular NSWindow), at some point you still have to call windowMovedOrResized & swapBuffers when appropiate. I suspect that's what the docs mean by "should perform OgreGLView callbacks into the Ogre manually."