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Re: Using glReadPixels

here's the code:
GLbyte *thePixels;
glReadBuffer(GL_FRONT_LEFT); // Is this necessary since I read from the default
buffer?
glReadPixels(10,10, 10,10, GL_RGBA, GL_BYTE, &thePixels);
cout << (int)thePixels[0] << endl;

Firstly thePixels is just a pointer to some memory. But have you allocated and intialised it?
Secondly why are you passing &thePixels? Shouldn't it be just thePixels?
The Blue book documents the function signature as:

glReadPixels(GLint x, .......,GLenum, GLvoid*pixels)

"Developing quality software requires a great deal of effort
over a long period of time." Doug Schmidt - C++ Report May 1996



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