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glut window

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i''ve been told that you can open a gl window in 2 lines using glut. is this true? if so how? also do the gl drawing commands have to be in a certain function or can that be anywhere. eg on nehe''s site the drawing commands are in the function int DrawGLScene(GLvoid) do they have to be? hmmm interesting

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Guest Anonymous Poster
It''s true taht with glut you can create a glwindow in few lines:

glutInitWindowPosition(0,0); //position of the left bottom corner
glutInitWindowSize(1024,768); // size of the window
glutCreateWindow("Title");// Window Title


Drawing commands can be in other funtion, but this function must be called in the DisplayFunction.

draw_triangle{
glBegin();
glVertex2f(0,0);
glVertex2f(1,0);
glVertex2f(1,1);
}

display_func{ // the display function(or DrawGlScene).
.......
.....
draw_triangle();
....
}

I hope I have answer your question and that you have understood me (my english is not very good)...

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void
display()
{
// your code here

}


int
main( int argc, char** argv )
{
glutInit( &argc, argv ); // initializes GLUT


glutCreateWindow( "Title" ); // creates a window with the default parameters;


glutDisplayFunc( display ); // registers the display function;


glutMainLoop(); // gets the ball rolling


}



More is needed to have something useful, but this will create a window... without barfing.

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