glutmousefunc(3) [centos man page]

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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)

								       Epoch

glutMouseFunc(3GLUT)						       GLUT						      glutMouseFunc(3GLUT)

NAME

       glutMouseFunc - sets the mouse callback for the current window.

SYNTAX

       #include <GLUT/glut.h>

       void glutMouseFunc(void (*func)(int button, int state,
			  int x, int y));

ARGUMENTS

       func	 The new mouse callback function.

DESCRIPTION

       glutMouseFunc  sets the mouse callback for the current window. When a user presses and releases mouse buttons in the window, each press and
       each release generates a mouse callback. The button parameter is one of GLUT_LEFT_BUTTON,  GLUT_MIDDLE_BUTTON,  or  GLUT_RIGHT_BUTTON.  For
       systems	with  only two mouse buttons, it may not be possible to generate GLUT_MIDDLE_BUTTON callback. For systems with a single mouse but-
       ton, it may be possible to generate only a GLUT_LEFT_BUTTON callback. The state parameter is either GLUT_UP or GLUT_DOWN indicating whether
       the  callback was due to a release or press respectively. The x and y callback parameters indicate the window relative coordinates when the
       mouse button state changed. If a GLUT_DOWN callback for a specific button is triggered, the program can assume a GLUT_UP callback  for  the
       same  button  will  be  generated (assuming the window still has a mouse callback registered) when the mouse button is released even if the
       mouse has moved outside the window.

       If a menu is attached to a button for a window, mouse callbacks will not be generated for that button.

       During a mouse callback, glutGetModifiers may be called to determine the state of modifier keys when the mouse event generating	the  call-
       back occurred.

       Passing NULL to glutMouseFunc disables the generation of mouse callbacks.

SEE ALSO

       glutKeyboardFunc, glutMotionFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						      glutMouseFunc(3GLUT)