0容器与溶液.rar

glunits.zip *************** These are the Delphi conversions of gl.h, glu.h, glut.h and glext.h. Copy them to your Delphi\Lib directory or somewhere else in your compiler's search path and you're all set! To use these units with OpenGL drivers other than Microsoft's, you need to manually initialize three DLL libraries. For example: LoadOpenGL('opengl.dll'); LoadGLu('glu.dll'); LoadGlut('glut.dll'); // Optional If you do this, make sure to free the previously loaded library first: FreeOpenGL; FreeGLu; FreeGlut; If the DLLs the application is trying to load cannot be found, an exception will be raised. By default, the units will try to load OpenGL32.dll, GLu32.dll and Glut32.dll. No exception will be thrown if they are not found, so if you want to support multiple OpenGL implementations in your app, it's probably best to explicitly load the DLLs explicitly as shown above. This way, you can properly trap errors. A final note: if you have a 3D card with an OpenGL ICD, you do NOT need to load the driver yourself. Microsoft's OpenGL32.dll will automatically detect and use your 3D card's drivers, so the default settings in these units will work perfectly. The fourth file in this archive, glext.pas, contains declarations of constants and function prototypes of most OpenGL extensions. To use an extension, you just need to check if it's supported, and load it's functions with wglGetProcAddress() if it is. You can check the presence of an extension with the included function glext_ExtensionSupported(). By using glext.pas, you no longer have to copy/paste/translate declarations from the extension specs. If you should come across an extension that isn't yet included in glext.pas, I'd appreciate it if you could drop me a line so I can add it ASAP. Tom Nuydens (tom@delphi3d.net)