UNTITLED LOCAL UNTITLED
glutGetModifiers -- Returns the status of Alt, Shift, and Ctrl keys.
OpenGLUT - inputstate
According to which, if any, modifier keys are held, the return value is the logical OR combination of any of the following symbolic bit-
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.
SEE ALSO glutSetOption(3)glutGet(3)glutDeviceGet(3)glutLayerGet(3)
Check Out this Related Man Page
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glutMouseFunc -- Sets the mouse-button callback for the current window.
OpenGLUT - input
glutMouseFunc(void( *callback )( int button, int state, int x, int y ));
callback Client hook for mouse-buttons.
Whenever a mouse button is pressed or released in an OpenGLUT window, OpenGLUT checks if that window has a mouse-button (Mouse) callback reg-
istered. If so, OpenGLUT gives the event to the handler. button is the button number, starting from 0. state is GLUT_UP or
GLUT_DOWN to indicate the button's new state. The other parameters are the mouse coordinates.
Mouse wheel motion can be reported as buttons. If you do not request otherwise, a wheel spun forward will act like a button clicking down,
immediately followed by clicking up. Spinning the same wheel backward will act like a different button clicking. Mouse wheel pseudo-buttons
are added after all real buttons.
While the button is held and the mouse is dragged, you receive mouse-motion events (glutMotionFunc()), even if the mouse is dragged out of
This callback is bound to the current window .
Reporting the wheel as buttons is actually inherited from X. freeglut added code to support this on WIN32. OpenGLUT inherited that support
Old GLUT defines the symbols GLUT_LEFT_BUTTON, GLUT_RIGHT_BUTTON, and GLUT_MIDDLE_BUTTON. However, mice can have more than 3 buttons,
so these symbols are deprecated.
Windows created via glutCreateMenuWindow() always cascade keyboard and mouse events to their parent.
SEE ALSO glutMotionFunc(3)glutPassiveMotionFunc(3)glutMouseWheelFunc(3)
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