UNTITLED LOCAL UNTITLED
NAME
glutAttachMenu -- Attach the current menu to the current window.
LIBRARY
OpenGLUT - menus
SYNOPSIS
#include <openglut.h>
void
glutAttachMenu(int button);
PARAMETERS
button Mouse button to bind to
DESCRIPTION
Associates the button with the current menu in the current window.
TODO
Assumes 3 mouse buttons. (Actually FREEGLUT_MAX_MENUS holds the assumed number of buttons.) Cannot bind to more buttons. Will not issue
any warnings or errors if the user does not have enough buttons to reach your menu.
SEE ALSO glutCreateMenu(3)glutSetMenu(3) glutDetachMenu,(3)
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UNTITLED LOCAL UNTITLED
NAME
glutMouseFunc -- Sets the mouse-button callback for the current window.
LIBRARY
OpenGLUT - input
SYNOPSIS
#include <openglut.h>
void
glutMouseFunc(void( *callback )( int button, int state, int x, int y ));
PARAMETERS
callback Client hook for mouse-buttons.
DESCRIPTION
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
the window.
This callback is bound to the current window .
CAVEATS
Reporting the wheel as buttons is actually inherited from X. freeglut added code to support this on WIN32. OpenGLUT inherited that support
from freeglut.
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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