# OpenGL (Solved)Including GL Header Files Causes Errors

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I'm just trying to make a simple camera class and trying to include a header file that I need so I can call some OpenGL functions, but I get a million errors for some ridiculous reason... I included other OpenGL header files in other header files and didn't get any errors so what the heck is going on...? This doesn't work...
#ifndef CAMERA_H
#define CAMERA_H

#include <gl/glu.h>

class CCamera
{


Here's the errors, but I doubt this will help because there's nothing wrong with the header files, it has to be because I shouldn't have included it there:
------ Build started: Project: glBasic, Configuration: Debug Win32 ------
Compiling...
CCamera.cpp
c:\oglsdk\include\gl\gl.h(1151) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1151) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1151) : error C2146: syntax error : missing ';' before identifier 'glAccum'
c:\oglsdk\include\gl\gl.h(1151) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1151) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1152) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1152) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1152) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1152) : error C2146: syntax error : missing ';' before identifier 'glAlphaFunc'
c:\oglsdk\include\gl\gl.h(1152) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1152) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1152) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1153) : error C2146: syntax error : missing ';' before identifier 'GLboolean'
c:\oglsdk\include\gl\gl.h(1153) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1153) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1153) : error C2146: syntax error : missing ';' before identifier 'glAreTexturesResident'
c:\oglsdk\include\gl\gl.h(1153) : error C2371: 'APIENTRY' : redefinition; different basic types
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1153) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1154) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1154) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1154) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1154) : error C2146: syntax error : missing ';' before identifier 'glArrayElement'
c:\oglsdk\include\gl\gl.h(1154) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1154) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1154) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1155) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1155) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1155) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1155) : error C2146: syntax error : missing ';' before identifier 'glBegin'
c:\oglsdk\include\gl\gl.h(1155) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1155) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1155) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1156) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1156) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1156) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1156) : error C2146: syntax error : missing ';' before identifier 'glBindTexture'
c:\oglsdk\include\gl\gl.h(1156) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1156) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1156) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1157) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1157) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1157) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1157) : error C2146: syntax error : missing ';' before identifier 'glBitmap'
c:\oglsdk\include\gl\gl.h(1157) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1157) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1157) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1158) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1158) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1158) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1158) : error C2146: syntax error : missing ';' before identifier 'glBlendFunc'
c:\oglsdk\include\gl\gl.h(1158) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1158) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1158) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1159) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1159) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1159) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1159) : error C2146: syntax error : missing ';' before identifier 'glCallList'
c:\oglsdk\include\gl\gl.h(1159) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1159) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1159) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1160) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1160) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1160) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1160) : error C2146: syntax error : missing ';' before identifier 'glCallLists'
c:\oglsdk\include\gl\gl.h(1160) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1160) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1160) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1161) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1161) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1161) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1161) : error C2146: syntax error : missing ';' before identifier 'glClear'
c:\oglsdk\include\gl\gl.h(1161) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1161) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1161) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1162) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1162) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1162) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1162) : error C2146: syntax error : missing ';' before identifier 'glClearAccum'
c:\oglsdk\include\gl\gl.h(1162) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1162) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1162) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1163) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1163) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1163) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1163) : error C2146: syntax error : missing ';' before identifier 'glClearColor'
c:\oglsdk\include\gl\gl.h(1163) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1163) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1163) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1164) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1164) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1164) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1164) : error C2146: syntax error : missing ';' before identifier 'glClearDepth'
c:\oglsdk\include\gl\gl.h(1164) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1164) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1164) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1165) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1165) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1165) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1165) : error C2146: syntax error : missing ';' before identifier 'glClearIndex'
c:\oglsdk\include\gl\gl.h(1165) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1165) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1165) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1166) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1166) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1166) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1166) : error C2146: syntax error : missing ';' before identifier 'glClearStencil'
c:\oglsdk\include\gl\gl.h(1166) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1166) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1166) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1167) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1167) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1167) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1167) : error C2146: syntax error : missing ';' before identifier 'glClipPlane'
c:\oglsdk\include\gl\gl.h(1167) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1167) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1167) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1168) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1168) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1168) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1168) : error C2146: syntax error : missing ';' before identifier 'glColor3b'
c:\oglsdk\include\gl\gl.h(1168) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1168) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1168) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1169) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1169) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1169) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1169) : error C2146: syntax error : missing ';' before identifier 'glColor3bv'
c:\oglsdk\include\gl\gl.h(1169) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1169) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1169) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1170) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1170) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1170) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1170) : error C2146: syntax error : missing ';' before identifier 'glColor3d'
c:\oglsdk\include\gl\gl.h(1170) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1170) : error C2086: 'int APIENTRY' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'APIENTRY'
c:\oglsdk\include\gl\gl.h(1170) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1171) : error C2144: syntax error : 'void' should be preceded by ';'
c:\oglsdk\include\gl\gl.h(1171) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
c:\oglsdk\include\gl\gl.h(1171) : error C2086: 'int WINGDIAPI' : redefinition
c:\oglsdk\include\gl\gl.h(1151) : see declaration of 'WINGDIAPI'
c:\oglsdk\include\gl\gl.h(1171) : error C2146: syntax error : missing ';' before identifier 'glColor3dv'
c:\oglsdk\include\gl\gl.h(1171) : error C2182: 'APIENTRY' : illegal use of type 'void'
c:\oglsdk\include\gl\gl.h(1171) : fatal error C1003: error count exceeds 100; stopping compilation
Build log was saved at "file://c:\Documents and Settings\Owner\My Documents\Visual Studio 2005\Projects\glBasic\Debug\BuildLog.htm"
glBasic - 143 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========


[Edited by - openglJunkie on December 15, 2008 7:50:03 PM]

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I had just thought about it and remembered that I was using the Win32API, so I had to include windows.h

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ResourceCache<T>: T can be any resource loaded into the GPU. It owns these resources and only hands out handles to them on request (currently string identifiers are used when requesting handles, but all resources are stored in a vector and each handle only contains resource's index in that vector) Resource<T>: The handles given out from ResourceCache. The handles are reference counted and to get the underlying resource you simply deference like with pointers (*handle).
And my plan is to define everything into these XML documents to abstract away files:
Resources.xml for ref-counted GPU resources (geometry, shaders, textures) Resources are assigned names/ids and resource files, and possibly some attributes (what vertex attributes does this geometry have? what vertex attributes does this shader expect? what uniforms does this shader use? and so on) Are reference counted using ResourceCache<T> Assets.xml for assets using the GPU resources (materials, meshes, models) Assets are not reference counted, but they hold handles to ref-counted resources. References the resources defined in Resources.xml by names/ids. The XMLs are loaded into some structure in memory which is then used for loading the resources/assets using factory classes:
Factory classes for resources:
For example, a texture factory could contain the texture definitions from the XML containing data about textures in the game, as well as a cache containing all loaded textures. This means it has mappings from each name/id to a file and when asked to load a texture with a name/id, it can look up its path and use a "BinaryLoader" to either load the file and create the resource directly, or asynchronously load the file's data into a queue which then can be read from later to create the resources synchronously in the GL context. These factories only return handles.
Factory classes for assets:
Much like for resources, these classes contain the definitions for the assets they can load. For example, with the definition the MaterialFactory will know which shader, textures and possibly uniform a certain material has, and with the help of TextureFactory and ShaderFactory, it can retrieve handles to the resources it needs (Shader + Textures), setup itself from XML data (uniform values), and return a created instance of requested material. These factories return actual instances, not handles (but the instances contain handles).

Is this a good or commonly used approach? Is this going to bite me in the ass later on? Are there other more preferable approaches? Is this outside of the scope of a 3d renderer and should be on the engine side? I'd love to receive and kind of advice or suggestions!
Thanks!
• By nedondev
I 'm learning how to create game by using opengl with c/c++ coding, so here is my fist game. In video description also have game contain in Dropbox. May be I will make it better in future.
Thanks.

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