hi all
i get this error
--------------------Configuration: main - Win32 Debug--------------------
Linking...
main.obj : error LNK2001: unresolved external symbol "public: __thiscall aShaderManager::aShaderManager(void)" (??0aShaderManager@@QAE@XZ)
main.obj : error LNK2001: unresolved external symbol "public: __thiscall aShaderManager::~aShaderManager(void)" (??1aShaderManager@@QAE@XZ)
main.obj : error LNK2001: unresolved external symbol "public: class aShaderObject * __thiscall aShaderManager::loadfromMemory(char const *,char const *)" (?loadfromMemory@aShaderManager@@QAEPAVaShaderObject@@PBD0@Z)
main.obj : error LNK2001: unresolved external symbol "public: void __thiscall aShaderObject::end(void)" (?end@aShaderObject@@QAEXXZ)
main.obj : error LNK2001: unresolved external symbol "public: void __thiscall aShaderObject::begin(void)" (?begin@aShaderObject@@QAEXXZ)
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/main.exe : fatal error LNK1120: 6 unresolved externals
Error executing link.exe.
main.exe - 7 error(s), 0 warning(s)
when i try to compile this code
// ****************************************************
// Simple program to test GLSL Shaders
//
// This Program shows how to load a Shader from memory
//
// Implement the functions:
// AppInit() to initialize
// AppExit() to clean up
// and DrawFrame() to draw one frame
// ****************************************************
#include <windows.h>
#include "../cwc/aGLSL.h"
#include <GL/glut.h>
#include <GL/gl.h>
aShaderManager shadermanager;
aShaderObject* shader;
static const char* myVertexShader =
"void main(void)
"
"{
"
" vec4 a = vec4(1.0,0.5,1.0,1.0) * gl_Vertex;
"
" gl_Position = gl_ModelViewProjectionMatrix * a;
"
"}
\0";
static const char* myFragmentShader =
"void main (void)
"
"{
"
" gl_FragColor = vec4 (0.0, 1.0, 0.0, 1.0);
"
"}
\0";
//*************************************************************
// at the time of App init, glut is already initialized
// and standard OpenGL settings are done. You could test
// extensions etc now!
void AppInit(void)
{
shader = shadermanager.loadfromMemory(myVertexShader,myFragmentShader);
if (shader==0)
{
std::cout << "error: can't init shader!
";
exit(-1);
}
//shader = shadermanager.loadfromFile("test.vert","test.frag");
}
//*************************************************************
//Draw one Frame (don't Swap Buffers)
void DrawFrame(void)
{
shader->begin();
glutSolidTeapot(1.5);
shader->end();
}
//*************************************************************
// use App Exit to clean up
void AppExit(void)
{
}
//*************************************************************
thank you all for any reply 
bye!