glutSpecialFunc - sets the special keyboard callback for the current window.
void glutSpecialFunc(void (*func)(int key, int x, int y));
func |
The new special callback function. |
glutSpecialFunc sets the special keyboard callback for the current window. The special keyboard callback is triggered when keyboard function or directional keys are pressed. The key callback parameter is a GLUT_KEY_* constant for the special key pressed. The x and y callback parameters indicate the mouse in window relative coordinates when the key was pressed. When a new window is created, no special callback is initially registered and special key strokes in the window are ignored. Passing NULL to glutSpecialFunc disables the generation of special callbacks.
During a special callback, glutGetModifiers may be called to determine the state of modifier keys when the keystroke generating the callback occurred.
An
implementation should do its best to provide ways to
generate all the GLUT_KEY_* special keys. The available
GLUT_KEY_* values are:
GLUT_KEY_F1
F1 function key.
GLUT_KEY_F2
F2 function key.
GLUT_KEY_F3
F3 function key.
GLUT_KEY_F4
F4 function key.
GLUT_KEY_F5
F5 function key.
GLUT_KEY_F6
F6 function key.
GLUT_KEY_F7
F7 function key.
GLUT_KEY_F8
F8 function key.
GLUT_KEY_F9
F9 function key.
GLUT_KEY_F10
F10 function key.
GLUT_KEY_F11
F11 function key.
GLUT_KEY_F12
F12 function key.
GLUT_KEY_LEFT
Left directional key.
GLUT_KEY_UP
Up directional key.
GLUT_KEY_RIGHT
Right directional key.
GLUT_KEY_DOWN
Down directional key.
GLUT_KEY_PAGE_UP
Page up directional key.
GLUT_KEY_PAGE_DOWN
Page down directional key.
GLUT_KEY_HOME
Home directional key.
GLUT_KEY_END
End directional key.
GLUT_KEY_INSERT
Inset directional key.
Note that the escape, backspace, and delete keys are generated as an ASCII character.
glutSpecialUpFunc, glutKeyboardFunc, glutMouseFunc, glutSpaceballButtonFunc, glutButtonBoxFunc, glutTabletButtonFunc, glutGetModifiers
Mark J. Kilgard (mjk@nvidia.com)
Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.
Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.
Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.
Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.
The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.
Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.
Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.
Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.