I need a solution for 10.5 Mac OS

Hi, ALL,

Hopefully I come to the right place for my question 😉

I am Software Developer and recently I needed to test my program under Mac OSX 10.5.

Unfortunately the program crashed.

During the investigation I found that the culprit is in the following piece of code:

[code]

CGLPixelFormatObj pixelFormatObj ;GLint numPixelFormats ;CGLPixelFormatAttribute attribs[]={    kCGLPFAFullScreen,    kCGLPFADisplayMask,    (CGLPixelFormatAttribute)0,    /* Display mask bit goes here */    (CGLPixelFormatAttribute)0};if( display == kCGNullDirectDisplay )    display =CGMainDisplayID();attribs[2]=(CGLPixelFormatAttribute)CGDisplayIDToOpenGLDisplayMask(display);/* Build a full-screen GL context */CGError error =CGLChoosePixelFormat( attribs,&pixelFormatObj,&numPixelFormats );if( pixelFormatObj == NULL )    return NULL;

[/code]

The error variable is "kNoError", but pixelFormatObj is NULL.

What I am trying to do is to get a screenshot of the current display.

Does anybody know of a good solution to use? Is there a reason why this code perform this way?

Thank you.