[RESOLVED] Difficulty Compiling Resource files (.rc, .h, and .res) in Visual C++

[jroeser]

Well, now I am really getting frustrated! I can't even get my program to compile now!!! I just wanted to learn a bit about Microsoft Programming, and it seems like no matter how much time I spend trying to fix this problem, things get worse!!!

To me, I really don't mind what compiler I use - I just want to be able to easily code my program and run it. Maybe it's my inexperience in using compilers that is leading to so such frustration, or maybe I just haven't set a simple option. Regardless, please allow me to go back a few steps and see if I can get assistance getting my simple program running on Visual C++ 6.0, which allows for resource editing. After that, I'd like to approach the real problem at hand (trying to get my resources to compile correctly)! Please note that I have no problem getting this project to work (without the resources) on Visual C++ 2008 Express Edition, just on Visual C++6.0 Standard Edition.

Steps I do:

1.) File > New > Projects > Win32 Console Application
Project Name is "WindowsPractice"

2.) Click on "File View" (not from the upper menu), right click on the main project, and left click on "Add Files to Project..."

3.) I add the file "main.cpp" from my desktop.
This file contains the following code (which only displays two, empty white windows):

#define WIN32_LEAN_AND_MEAN

#include <windows.h> //windows headers
#include <windowsx.h> //macros
#include <stdio.h>
#include <math.h>

#define WINDOW_CLASS_NAME "MYCLASS"

//my super awesome message handler
LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
	PAINTSTRUCT ps;
	HDC hdc;
	switch(msg)
	{
	case WM_CREATE:
		{
			return(0);
		}
		break;

	case WM_PAINT:
		{
			hdc = BeginPaint(hwnd, &ps);
			EndPaint(hwnd, &ps);
			return(0);
		}
		break;

	case WM_DESTROY:
		{
			PostQuitMessage(0);
			return(0);
		}
		break;

	default:break;
	}

	//let Windows handle the rest
	return (DefWindowProc(hwnd, msg, wparam, lparam));

}//WinProc is over

//WINMAIN - consider this your main loop
int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow)
{
	WNDCLASSEX winclass; //holds the class we create
	HWND hwnd; //generic window handle
	MSG msg; //generic message

	//first we have to define what our structure will be
	winclass.cbSize = sizeof(WNDCLASSEX);
	winclass.style = CS_DBLCLKS | CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
	winclass.lpfnWndProc = WindowProc; //how the messages are handled
	winclass.cbClsExtra = 0;
	winclass.cbWndExtra = 0;
	winclass.hInstance = hinstance;
	winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	winclass.hCursor = LoadCursor(hinstance, IDC_ARROW);
	winclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
	winclass.lpszMenuName = NULL;
	winclass.lpszClassName = WINDOW_CLASS_NAME;
	winclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

	//register this class now
	if (!RegisterClassEx(&winclass))
		return(0);

	//----------------------------------------------------------------------
	//create the window time!!!
	if (!(hwnd = CreateWindowEx(NULL, WINDOW_CLASS_NAME, "My first window!",
		WS_OVERLAPPEDWINDOW | WS_VISIBLE,
		0,0, //inital x and y
		400,400, //initial width, height
		NULL,
		NULL,
		hinstance,//histance of application
		NULL)))
		return(0);

	//----------------------------------------------------------------------
	//let's create a second window
	if (!(hwnd = CreateWindowEx(NULL, WINDOW_CLASS_NAME, "Here is a second window!!!",
		WS_OVERLAPPEDWINDOW | WS_VISIBLE,
		0,0,
		600,800,
		NULL,
		NULL,
		hinstance,
		NULL)))
		return(0);


	//main event loop time
	while(GetMessage(&msg, NULL, 0,0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	//return to basic Windows
	return(msg.wParam);
}

I hit "Control + F7" to compile it (0 errors and 0 warnings).
Then, I hit "Control + F5" to run it, and I get this error:


--------------------Configuration: WindowsPractice - Win32 Debug--------------------
Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/WindowsPractice.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Windows7.exe - 2 error(s), 0 warning(s)


Why am I able to compile this program so easily on the express edition, yet not at all on the 6.0 edition? Perhaps if I can resolve this issue, it may take care of my resource problem as well!

[ Added by ovidiucucu ]
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