[Dev C++] First Test to OpenGL, error found...

OpenGL OpenGL: Basic Coding
1

Hey OpenGL Programmers and C++ Users…

I am new with OpenGL and this OpenGL Forum yet…

So i use Dev C++ and i get installed FreeGLUT on Windows XP (at home i work on windows 7 and 10)…
Now i try if opengl works on Dev C++, but no… i get an error!..

Just this is my script copied from google yet…

#include <GL/glut.h>

void displayMe(void)
{
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_POLYGON);
        glVertex3f(0.0, 0.0, 0.0);
        glVertex3f(0.5, 0.0, 0.0);
        glVertex3f(0.5, 0.5, 0.0);
        glVertex3f(0.0, 0.5, 0.0);
    glEnd();
    glFlush();
}

int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE);
    glutInitWindowSize(300, 300);
    glutInitWindowPosition(100, 100);
    glutCreateWindow("Hello world :D");
    glutDisplayFunc(displayMe);
    glutMainLoop();
    return 0;
}

Now i get an error in the returning function, so this is the error i get:

Compiling single file…

  • Filename: C:\Documents and Settings\Eigenaar\Bureaublad\GLUT Test.cpp
  • Compiler Name: TDM-GCC 4.9.2 32-bit Release

Processing C++ source file…

  • C++ Compiler: C:\Program Files\Dev-Cpp\MinGW64\bin\g++.exe
  • Command: g++.exe “C:\Documents and Settings\Eigenaar\Bureaublad\GLUT Test.cpp” -o “C:\Documents and Settings\Eigenaar\Bureaublad\GLUT Test.exe” -m32 -I"C:\Program Files\Dev-Cpp\MinGW64\include" -I"C:\Program Files\Dev-Cpp\MinGW64\x86_64-w64-mingw32\include" -I"C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include" -I"C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++" -L"C:\Program Files\Dev-Cpp\MinGW64\lib32" -L"C:\Program Files\Dev-Cpp\MinGW64\x86_64-w64-mingw32\lib32" -static-libgcc -m32
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x1c): undefined reference to _imp____glutInitWithExit@12' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x3e): undefined reference to _imp____glutCreateWindowWithExit@8’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x60): undefined reference to _imp____glutCreateMenuWithExit@8' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x7b): undefined reference to _imp__glClear@4’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x8c): undefined reference to _imp__glBegin@4' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0xb0): undefined reference to _imp__glVertex3f@12’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0xd4): undefined reference to _imp__glVertex3f@12' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0xf8): undefined reference to _imp__glVertex3f@12’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x11c): undefined reference to _imp__glVertex3f@12' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x126): undefined reference to _imp__glEnd@0’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x12d): undefined reference to _imp__glFlush@0' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x168): undefined reference to _imp__glutInitDisplayMode@4’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x181): undefined reference to _imp__glutInitWindowSize@8' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x19a): undefined reference to _imp__glutInitWindowPosition@8’
    C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x1ba): undefined reference to _imp__glutDisplayFunc@4' C:\DOCUME~1\Eigenaar\LOCALS~1\Temp\ccDvQv6O.o:GLUT Test.cpp:(.text+0x1c4): undefined reference to _imp__glutMainLoop@0’
    collect2.exe: error: ld returned 1 exit status

Compilation results…

  • Errors: 1
  • Warnings: 0
  • Compilation Time: 1,17s

I am an newbie with OpenGL and i use Dev C++ for it…, Please can anyone help me to correct my code ?..
Thanks for help, Jamie.

2

Your link line is missing references to the GLUT and OpenGL libraries.

Try adding the arguments “-lglut32 -lopengl32”. If you still have unresolved “glut” symbols", try -lfreeglut instead of -lglut32.

For more possible solutions, websearch “devc++ glut unresolved reference”. For instance:

[ul]
[li]Undefined references using GLUT with MinGW
[/li][/ul]