I downloaded the source of lesson 3 and got a heap load of errors, I'm using Dev C++. Can anyone tell me why I'm getting these errors please? Heres the Compile Log: Compiler: Default compiler Executing g++.exe... g++.exe "C:\Documents and Settings\Administrator\Desktop\lesson03\lesson03\Lesson3.cpp" -o "C:\Documents and Settings\Administrator\Desktop\lesson03\lesson03\Lesson3.exe" -I"C:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include" -I"C:\Dev-Cpp\include\c++\3.4.2\backward" -I"C:\Dev-Cpp\include\c++\3.4.2\mingw32" -I"C:\Dev-Cpp\include\c++\3.4.2" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib" C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x31):Lesson3.cpp: undefined reference to `glViewport@16' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x40):Lesson3.cpp: undefined reference to `glMatrixMode@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x48):Lesson3.cpp: undefined reference to `glLoadIdentity@0' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x76):Lesson3.cpp: undefined reference to `gluPerspective@32' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x85):Lesson3.cpp: undefined reference to `glMatrixMode@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x8d):Lesson3.cpp: undefined reference to `glLoadIdentity@0' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xa2):Lesson3.cpp: undefined reference to `glShadeModel@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xcd):Lesson3.cpp: undefined reference to `glClearColor@16' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xda):Lesson3.cpp: undefined reference to `glClearDepth@8' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xe9):Lesson3.cpp: undefined reference to `glEnable@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xf8):Lesson3.cpp: undefined reference to `glDepthFunc@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x10f):Lesson3.cpp: undefined reference to `glHint@8' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x12c):Lesson3.cpp: undefined reference to `glClear@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x134):Lesson3.cpp: undefined reference to `glLoadIdentity@0' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x153):Lesson3.cpp: undefined reference to `glTranslatef@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x162):Lesson3.cpp: undefined reference to `glBegin@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x184):Lesson3.cpp: undefined reference to `glColor3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x1a6):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x1c8):Lesson3.cpp: undefined reference to `glColor3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x1ea):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x20c):Lesson3.cpp: undefined reference to `glColor3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x22e):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x236):Lesson3.cpp: undefined reference to `glEnd@0' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x255):Lesson3.cpp: undefined reference to `glTranslatef@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x277):Lesson3.cpp: undefined reference to `glColor3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x286):Lesson3.cpp: undefined reference to `glBegin@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x2a8):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x2ca):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x2ec):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x30e):Lesson3.cpp: undefined reference to `glVertex3f@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x316):Lesson3.cpp: undefined reference to `glEnd@0' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x374):Lesson3.cpp: undefined reference to `wglMakeCurrent@8' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x3af):Lesson3.cpp: undefined reference to `wglDeleteContext@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x854):Lesson3.cpp: undefined reference to `ChoosePixelFormat@8' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x8b8):Lesson3.cpp: undefined reference to `SetPixelFormat@12' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x907):Lesson3.cpp: undefined reference to `wglCreateContext@4' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0x969):Lesson3.cpp: undefined reference to `wglMakeCurrent@8' C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/ccYlbaaa.o(.text+0xca7):Lesson3.cpp: undefined reference to `SwapBuffers@4' collect2: ld returned 1 exit status Execution terminated

Looks like you forgot to link to opengl32.a or you tried to compile the .cpp file by itself.

You did download the Dev-C++ version right? Plus always compile the whole project, not the .cpp file.

I haven't run into problems with the Dev-C++ projects, but I'll download 3 and see what's going on.

Edit: Compiles just fine, except I had to remove the glaux.h include.

Go to your linker options using 'Project > Project Options > Parameters Tab > Linker Box' and make sure you have the following included:

-lopengl32
-lglu32

That should sort it out.

aha works fine when you open the .dev instead of the .cpp file :D, Thanks for help peeps! :)

No problems. Happy coding and make some games!