glutgetmodifiers(3) - Linux man page

Name

glutGetModifiers - Returns the status of Alt, Shift, and Ctrl keys.

OpenGLUT - inputstate

#include <openglut.h>

int

glutGetModifiers(void);

According to which, if any, modifier keys are held, the return value is the logical OR combination of any of the following symbolic bitmasks:

- GLUT_ACTIVE_SHIFT - GLUT_ACTIVE_CTRL - GLUT_ACTIVE_ALT

E.g., if the shift key is held, and no other modifier keys are held, this function will return GLUT_ACTIVE_SHIFT.

Complains if not invoked by a client callback.

Does not differentiate between the left and right forms of the modifiers.