launchwindows.h

A Star 算法 的C++实现, 有很好的类实现

//-----------------------------------------------------------------------------
// WINDOWS LIBRARY: This include file contains functions that create
//  a Window and process Windows messages.
//-----------------------------------------------------------------------------

#ifndef WIN32_LEAN_AND_MEAN
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>  //Windows header
  #include <windowsx.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <stdarg.h>
  #include <mmsystem.h>
  #include <fstream.h>
#endif


//-----------------------------------------------------------------------------
// Function Prototypes
//-----------------------------------------------------------------------------
LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam);
int CheckWinMessages(void);
void GameMain(HWND hwnd);


//-----------------------------------------------------------------------------
// Name: WinMain
// Desc: Launch program.
//-----------------------------------------------------------------------------
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
   LPSTR lpCmdLine, int nCmdShow)
{
	//Declare window class
	WNDCLASSEX wc;
	wc.cbSize        = sizeof(WNDCLASSEX);
	wc.style         = 0; //window style
	wc.lpfnWndProc   = WndProc; //Windows message function
	wc.cbClsExtra    = 0; //unused
	wc.cbWndExtra    = 0; //unused
	wc.hInstance     = hInstance;
	wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);//program icon
	wc.hCursor       = LoadCursor(NULL, IDC_ARROW); //program cursor
	wc.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH);
	wc.lpszMenuName  = NULL;
	wc.lpszClassName = "Windows DX";//window class name (see below)
	wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

	//Register the window class
	if(!RegisterClassEx(&wc)) return 0;

    //Create the window
    HWND hwnd = CreateWindowEx(
         NULL,// extended style, not needed
         "Windows DX", //window class name
         WINDOW_NAME, //window name (defined in main.cpp)
         WS_POPUP, //window style
         0, //horizontal position of Window
         0, //vertical position of Window
         GetSystemMetrics(SM_CXSCREEN), //window width
         GetSystemMetrics(SM_CYSCREEN), //window height
         NULL,//handle to parent of Window, if any
         NULL, //handle to menu or child-window
         hInstance,//handle to program instance
         NULL);//pointer to window creation data

	if(hwnd == NULL) return 0;
	ShowWindow (hwnd, nCmdShow);
	UpdateWindow (hwnd);
	CheckWinMessages();

	GameMain(hwnd);//see main.cpp
	return 0;	
}


//-----------------------------------------------------------------------------
// Name: CheckWinMessages
// Desc: Checks the Windows message queue and, if there are any,
//	forwards them to WndProc. Messages to close the program
//	are returned as such. This is called from GameMain(). It returns
//	0 when a close window message has been posted.
//-----------------------------------------------------------------------------
int CheckWinMessages(void)
{
	MSG msg; //Declare variable that holds messages
	if (PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE))
    {
        if (!GetMessage(&msg, NULL, 0, 0))//Get the message
		{
			return msg.wParam;//returns 0 when closing
		}
        TranslateMessage(&msg);//Translate it
        DispatchMessage(&msg);//Send it to WndProc
    }
	return 1;
}


//-----------------------------------------------------------------------------
// Name: WndProc
// Desc: Windows callback function that processes Windows messages. It is
//	called by both CheckWinMessages() and by Windows directly.
//-----------------------------------------------------------------------------
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	return DefWindowProc(hwnd, msg, wParam, lParam);
}