getting the position of a user mouse click in C & GLUT
15,595
you need to register a mouse callback function it has the following signature:
void glutMouseFunc(void (*func)(int button, int state,
int x, int y));
There's a tutorial that covers some basics here
Edit: If you want the position to be normalized (0.0 - 1.0) divide by the width and height:
float x1 = x /(float) width;
float y1 = y /(float) height;
Author by
Lily
Updated on July 01, 2022Comments
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Lily almost 2 years
I would like to store the user's mouse click position on two variables
float x,y;
I'm using openGL with
C
. I already have a mouse function using glut, but when I try to print x and y, it gives me values likex = 134; y = 150
, while my screen ortho is between 0 and 1.I want to get the exact points to draw a point there.