Thread: Help me, I am beginner at this......

Code:

#include <windows.h>

#include "resource.h" 

const char g_szClassName[] = "myWindowClass";

BOOL CALLBACK AboutDlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
	switch(Message)
	{
		case WM_INITDIALOG:

		return TRUE;
		case WM_COMMAND:
			switch(LOWORD(wParam))
			{
				case IDOK:
					EndDialog(hwnd, IDOK);
				break;
				case IDCANCEL:
					EndDialog(hwnd, IDCANCEL);
				break;
			}
		break;
		default:
			return FALSE;
	}
	return TRUE;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
	switch(Message)
	{
		case WM_COMMAND:
			switch(LOWORD(wParam))
			{
				case ID_FILE_EXIT:
					PostMessage(hwnd, WM_CLOSE, 0, 0);
				break;
				case ID_HELP_ABOUT:
				{
					int ret = DialogBox(GetModuleHandle(NULL), 
						MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc);
					if(ret == IDOK){
						MessageBox(hwnd, "Dialog exited with IDOK.", "Notice",
							MB_OK | MB_ICONINFORMATION);
					}
					else if(ret == IDCANCEL){
						MessageBox(hwnd, "Dialog exited with IDCANCEL.", "Notice",
							MB_OK | MB_ICONINFORMATION);
					}
					else if(ret == -1){
						MessageBox(hwnd, "Dialog failed!", "Error",
							MB_OK | MB_ICONINFORMATION);
					}
				}
				break;
			}
		break;
		case WM_CLOSE:
			DestroyWindow(hwnd);
		break;
		case WM_DESTROY:
			PostQuitMessage(0);
		break;
		default:
			return DefWindowProc(hwnd, Message, wParam, lParam);
	}
	return 0;
}


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
	LPSTR lpCmdLine, int nCmdShow)
{
	WNDCLASSEX wc;
	HWND hwnd;
	MSG Msg;

	wc.cbSize		 = sizeof(WNDCLASSEX);
	wc.style		 = 0;
	wc.lpfnWndProc	 = WndProc;
	wc.cbClsExtra	 = 0;
	wc.cbWndExtra	 = 0;
	wc.hInstance	 = hInstance;
	wc.hIcon		 = LoadIcon(NULL, IDI_APPLICATION);
	wc.hCursor		 = LoadCursor(NULL, IDC_ARROW);
	wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
	wc.lpszMenuName  = MAKEINTRESOURCE(IDR_MYMENU);
	wc.lpszClassName = g_szClassName;
	wc.hIconSm		 = LoadIcon(NULL, IDI_APPLICATION);

	if(!RegisterClassEx(&wc))
	{
		MessageBox(NULL, "Window Registration Failed!", "Error!",
			MB_ICONEXCLAMATION | MB_OK);
		return 0;
	}

	hwnd = CreateWindowEx(
		WS_EX_CLIENTEDGE,
		g_szClassName,
		"The title of my window",
		WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
		NULL, NULL, hInstance, NULL);

	if(hwnd == NULL)
	{
		MessageBox(NULL, "Window Creation Failed!", "Error!",
			MB_ICONEXCLAMATION | MB_OK);
		return 0;
	}

	ShowWindow(hwnd, nCmdShow);
	UpdateWindow(hwnd);

	while(GetMessage(&Msg, NULL, 0, 0))
	{
		TranslateMessage(&Msg);
		DispatchMessage(&Msg);
	}
	return Msg.wParam;
}

I just want to know when after what is CALLBACK AboutDlgProc called..........Please I need help really bad

I think I got it........my God this stuff is hard!!!!!!!!

I am using a book BTW. I thought this thread was long dead, but I guess you resurected it.

I was reading some about Windows from a Tutorial online, but I am learning from Isometric Game Programming With Direct X.