A question about openGL and butons

[jackit]

Hi, I'm new to openGL and I have a question, I'd like to make a "video wall" type application, where multiple images are mapped onto a cylinder, I'd like to then enable each of these images as buttons....

Is this possible? I'm not sure if objects in an openGL space can act as buttons....

[Mr Jack]

Originally Posted by jackit

Is this possible? I'm not sure if objects in an openGL space can act as buttons....

It can be done, but you'll need to implement the button logic yourself. Attach some code to recieve touches to the touchesBegan, etc. events so that you can get the touch position in screen co-ordinates. You'll then need to project this position into screen space to determine which button(s) it contacts.

[jackit]

Originally Posted by Mr Jack

It can be done, but you'll need to implement the button logic yourself. Attach some code to recieve touches to the touchesBegan, etc. events so that you can get the touch position in screen co-ordinates. You'll then need to project this position into screen space to determine which button(s) it contacts.

Thanks, I'm wondering if I'd be better off doing this in CoreAnimation / Quartz.....