What does this mean????

I get the following error when compiling a win32/opengl prog. Using VC++ 6

F:\frame\framework\source.cpp(339) : error C2601: ‘WinMain’ : local function definitions are illegal
Error executing cl.exe.

it looks like you’ve tried do define a function inside of another, like a local data. Example :

void toto ()
{
void tutu ()
{

}

}

That is forbidden by msvc++.