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mstein

glut mouse menu -- get a weird stack error

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mstein    122
this is weird: look at the below code. whenever i invoke case 'w' -- through a right click mouse menu that pops up using GLUT -- i get an error message from VC.Net saying stack corrupted around 'm'. I assume the 'm' they mean is that variable i have right there. Any ideas . . .
    
/* MOUSE MENU */
void screen_menu(int status) {
	int m = -1;
	switch(status) {
		case 'w':	
			glGetIntegerv(GL_POLYGON_MODE, &m);
			if(m == GL_LINE) 
				glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
			else glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
			
			break;
    
[edited by - mstein on March 5, 2003 1:47:12 AM]

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Dave Hunt    4872
For GL_POLYGON_MODE, glGetIntegerv() actually returns two values - the front-facing polygon mode and back-facing polygon mode. So, your single int isn''t big enough to hold the results, thus stomping the stack. ''m'' needs to be an array of 2 ints for this call. I''m not sure which value is returned in which element, though. Anyone?

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mstein    122
thanks so much, i think with that information and a little look in the blue book or red book I can figure out the rest. I thought I was using glGetIntegerv properly in the first place. Thanks for the heads up.


-also it took me like 10 tries to reply to this topic, i kept getting server 500 errors, is this on my side or gamedev''s???

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