MOOC清華《VC++面向對象與可視化程序設計》第5章：圖標資源例程

#include<windows.h>
#include<stdlib.h>
#include<string.h>
long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam);
BOOL InitWindowsClass(HINSTANCE hInstance);
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);
HWND hWndMain;

//主函數
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
	MSG Message;
	if(!InitWindowsClass(hInstance))
		return FALSE;
	if(!InitWindows(hInstance,nCmdShow))
		return FALSE;
	while(GetMessage(&Message,0,0,0))//消息循環
	{
		TranslateMessage(&Message);
		DispatchMessage(&Message);
	}
	return Message.wParam;
}

//消息處理函數
long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam)
{
	switch(iMessage)
	{
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	default:
		return(DefWindowProc(hWnd,iMessage,wParam,lParam));
	}
}

BOOL InitWindowsClass(HINSTANCE hInstance)			//初始化窗口類
{
		WNDCLASS WndClass;
		WndClass.cbClsExtra=0;
		WndClass.cbWndExtra=0;
		WndClass.hbrBackground=(HBRUSH)(GetStockObject(WHITE_BRUSH));
		WndClass.hCursor=LoadCursor(hInstance,IDC_ARROW);
		WndClass.hIcon=LoadIcon(NULL,"TREE");		//加載圖標資源
		WndClass.hInstance=hInstance;
		WndClass.lpfnWndProc=WndProc;
		WndClass.lpszClassName="WinIcon";
		WndClass.lpszMenuName=NULL;
		WndClass.style=CS_HREDRAW|CS_VREDRAW;
		return RegisterClass(&WndClass);
}

BOOL InitWindows(HINSTANCE hInstance,int nCmdShow)
{	
	HWND hWnd;
	hWnd=CreateWindow("WinIcon",					//生成窗口
						"圖標顯示示例程序",
						WS_OVERLAPPEDWINDOW,
						CW_USEDEFAULT,
						0,
						CW_USEDEFAULT,
						0,
						NULL,
						NULL,
						hInstance,
						NULL);
	if(!hWnd)
		return FALSE;
	hWndMain=hWnd;

	ShowWindow(hWnd,nCmdShow);						//顯示窗口
	UpdateWindow(hWnd);
	return TRUE;
}

//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by 001.rc

// Next default values for new objects
// 
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE        101
#define _APS_NEXT_COMMAND_VALUE         40001
#define _APS_NEXT_CONTROL_VALUE         1001
#define _APS_NEXT_SYMED_VALUE           101
#endif
#endif

TREE ICON E:\Visual_Cpp_Files\chap5_Project5\chap5_Project5\tree.ico