glutKeyboardFunc(3GLUT) GLUT glutKeyboardFunc(3GLUT) NAME glutKeyboardFunc - sets the keyboard callback for the current window. SYNTAX void glutKeyboardFunc(void (*func)(unsigned char key, int x, int y)); ARGUMENTS func The new keyboard callback function. DESCRIPTION glutKeyboardFunc sets the keyboard callback for the current window. When a user types into the window, each key press generating an ASCII character will generate a keyboard callback. The key callback parameter is the gener- ated ASCII character. The state of modifier keys such as Shift cannot be determined directly; their only effect will be on the returned ASCII data. The x and y callback parameters indicate the mouse location in window rela- tive coordinates when the key was pressed. When a new window is created, no keyboard callback is initially registered, and ASCII key strokes in the window are ignored. Passing NULL to glutKeyboardFunc disables the genera- tion of keyboard callbacks. During a keyboard callback, glutGetModifiers may be called to determine the state of modifier keys when the keystroke generating the callback occurred. Use glutSpecialFunc for a means to detect non-ASCII key strokes. SEE ALSO glutKeyboardUpFunc, glutSpecialFunc, glutCreateWindow, glutMouseFunc, glut- SpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModi- fiers AUTHOR Mark J. Kilgard (mjk@nvidia.com) GLUT 3.7 glutKeyboardFunc(3GLUT)
NAME | SYNTAX | ARGUMENTS | DESCRIPTION | SEE ALSO | AUTHOR
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