Using NSOpenGLView in Cocoa Programming in Mac

By: Aaron Hillegass Emailed: 1645 times Printed: 2118 times    

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NSOpenGLView is an NSView subclass that has an OpenGL drawing context. Just as you needed the focus locked on a view to do drawing with Quartz, so the OpenGL drawing context must be active for any OpenGL drawing commands to have an effect.

Here are some important methods in NSOpenGLView:

- (id)initWithFrame:(NSRect)frameRect
         pixelFormat:(NSOpenGLPixelFormat *)format

The designated initializer.

- (NSOpenGLContext*)openGLContext

Returns the view's OpenGL context.

- (void)reshape

Called when the view is resized. The OpenGL context is active when this method is called.

- (void)drawRect:(NSRect)r

Called when the view needs to be redrawn. The OpenGL context is active when this method is called.


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