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Editorial Team
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Asked: 2026-05-17T22:18:18+00:00

I am new to iPhone application development and currently working on a simple paint

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I am new to iPhone application development and currently working on a simple paint application for iPhone. I use GLPaint source code to start with. I tried to change the brush size using the following ways.

I created a UIViewController class and linked it to GLPaint.PaintingView and added different buttons to indicate different brush size.

  1. Tried to dynamically pass images with different images. But initWithCoder was called only when the paint view loads and so the brush image @”Particle.png” is not getting changed

  2. Tried extracting the logic in initWithCoder to another method that takes in brush string as parameter. So that I could call the extracted method while selecting a brush button. Since the brush buttons are in another View/Viewcontroller, the change in image is not applied.

Is there any method to change the brush size just like “(void)setBrushColorWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue” that changes color?

Any help will be very much useful. Thank you.

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1 Answer

  1. Editorial Team

    Did you try changing kBrushSize – which is used in call to glPointSize() in -initWithCoder: ?

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