windows程序设计(第五版)源代码a(chap10)

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1、chap10-IconDemo/*------------------------------------------ICONDEMO.C--IconDemonstrationProgram(c)CharlesPetzold,1998------------------------------------------*/#include#include"resource.h"LRESULTCALLBACKWndProc(HWND,UINT,WPARAM,LPARAM);intWINAPIWinMain(H

2、INSTANCEhInstance,HINSTANCEhPrevInstance,PSTRszCmdLine,intiCmdShow){TCHARszAppName[]=TEXT("IconDemo");HWNDhwnd;MSGmsg;WNDCLASSwndclass;wndclass.style=CS_HREDRAW

3、CS_VREDRAW;wndclass.lpfnWndProc=WndProc;wndclass.cbClsExtra=0;wndclass.cbWndExtra=0;wndclass.hInstance=hI

4、nstance;wndclass.hIcon=LoadIcon(hInstance,MAKEINTRESOURCE(IDI_ICON));wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);wndclass.hbrBackground=GetStockObject(WHITE_BRUSH);wndclass.lpszMenuName=NULL;wndclass.lpszClassName=szAppName;if(!RegisterClass(&wndclass)){MessageBox(N

5、ULL,TEXT("ThisprogramrequiresWindowsNT!"),szAppName,MB_ICONERROR);return0;}hwnd=CreateWindow(szAppName,TEXT("IconDemo"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);ShowWindow(hwnd,iCmdShow);UpdateWindow(hwnd)

6、;while(GetMessage(&msg,NULL,0,0)){TranslateMessage(&msg);DispatchMessage(&msg);}returnmsg.wParam;}LRESULTCALLBACKWndProc(HWNDhwnd,UINTmessage,WPARAMwParam,LPARAMlParam){staticHICONhIcon;staticintcxIcon,cyIcon,cxClient,cyClient;HDChdc;HINSTANCEhInstance;PAINTSTRUCTps

7、;intx,y;switch(message){caseWM_CREATE:hInstance=((LPCREATESTRUCT)lParam)->hInstance;hIcon=LoadIcon(hInstance,MAKEINTRESOURCE(IDI_ICON));cxIcon=GetSystemMetrics(SM_CXICON);cyIcon=GetSystemMetrics(SM_CYICON);return0;caseWM_SIZE:cxClient=LOWORD(lParam);cyClient=HIWORD(

8、lParam);return0;caseWM_PAINT:hdc=BeginPaint(hwnd,&ps);for(y=0;y

9、DemoÍ·Îļþ//{{NO_DEPENDENCIES}}//MicrosoftDeveloperStudiogeneratedincludefile.//UsedbyIconDemo.rc//#defineIDI_ICON101//Nextdefaultvaluesfo