HP c8000 manual Including header files

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compiling and linking programs

including header files

including header files

Most OpenGL programs and applications that only use the standard OpenGL data types, definitions, and function declarations, need only include the header file gl.h under the /opt/graphics/OpenGL/include/GL directory. Use the following syntax:

#include <GL/gl.h>

Still other header files may be needed by your program, depending on your application. For example, in order to use the OpenGL extension to X Windows (GLX) you must include glx.h, as shown below.

#include <GL/glx.h>

Instructions for including various additional header files are usually provided with the README file that accompanies a utility or function. The README also includes instructions for using or operating the utilities.

Your header file declarations at the beginning of your program should look similar to this:

#include <sys/types.h> #include <stdio.h> #include <string.h> #include <X11/X.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include <GL/gl.h>

#include <GL/glx.h>

Chapter 4

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Contents OpenGL Implementation Guide Legal Notices Contents Installation and setup Programming hints Contents Overview of OpenGL OpenGL Reference Manual IntroductionHp’s implementation of the OpenGL libraries OpenGL productHp’s implementation of OpenGL Supported operating systems Supported graphics devicesVisual Table for HP Visualize fxe Supported visualsVisual Table for ATI Fire GL T2/X1/X3 Visual support for other graphics devices Stereo Visual Support for HP Fire GL-UXSigchld and the GRM daemon Buffer sharing between multiple processes and threadsBit programming SLS support Sample 64-bit compile and link for 11.x onlyOpenGL extensions for the X Window system GLX Standard OpenGL productOpenGL Utilities Library GLU Input and output routinesOpenGL product Mixing of OpenGL and Xlib Gamma correction Occlusion culling code fragments OpenGL extensionsVisibility test extensions Occlusion extensionEnumerated Types for Occlusion GLHPsupersample extension Bow-tie quadrilaterals Default visualsRendering details EXP and EXP2 foggingVertices outside of a begin/end pair Index mode ditheringDecomposition of concave quadrilaterals Environment variables New environment variables as of release Switches to the faster double buffering method Installation and setup Installation and setup Verify that OpenGL is on your workstation Verification instructionsIs your system software preloaded with instant ignition? Install OpenGL Installing OpenGLOpenGL Development Environment Filesets for 11.0 Check log file Verify the product OpenGL file structure 64-bit libraries are in a subdirectory OpenGL file structure Chapter Running OpenGL programs Special considerations Virtual GLX VGL modeVisual support for the VGL mode Bool hpglXDisplayIsVGLDisplay *dpy, int screen Running hps implementation of the OpenGL stereo application Running hps implementation of the OpenGL stereo application Running OpenGL programs Compiling and linking programs Subdirectory This Directory Contains OverviewIncluding header files Linking shared libraries Compiling 32-bit and 64-bit applications for OpenGL OpenGL procedure calls Programming hints Programming hints Texture coordinates OpenGL correctness hints4D values Geometric primitives Glcompileandexecute modeOpenGL performance hints Display list performanceDraw array set extensions State changes and their effects on display lists TexturesRegular primitive data Selection performance Texture downloading performanceState change High frame rate applications Optimization of lightingOcclusion culling Rescaling normals OpenGL performance hints
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