学步园

（二）图标和光标

#include <windows.h><br /> #include "Resource.h"</p> <p>TCHAR szName[] = TEXT("Icon and Cursor Example");<br /> HICON hIconBig, hIconSmall;<br /> HCURSOR hCur1, hCur2;<br /> HMENU hMenu;<br /> HINSTANCE hInst;</p> <p>LRESULT CALLBACK ProcWinMain(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)<br /> {<br /> switch(uMsg)<br /> {<br /> case WM_CREATE:<br /> hIconBig = LoadIcon(hInst, MAKEINTRESOURCE(IDI_BIG));<br /> hIconSmall = LoadIcon(hInst, MAKEINTRESOURCE(IDI_SMALL));<br /> hCur1 = LoadCursorFromFile(TEXT("1.ANI"));<br /> hCur2 = LoadCursor(hInst, MAKEINTRESOURCE(IDC_CURSOR));</p> <p> SendMessage(hWnd, WM_COMMAND, IDM_BIG, 0);<br /> SendMessage(hWnd, WM_COMMAND, IDM_CUR1, 0);<br /> return 0;</p> <p> case WM_COMMAND:<br /> switch(LOWORD(wParam))<br /> {<br /> case IDM_EXIT:<br /> DestroyWindow(hWnd);<br /> PostQuitMessage(0);<br /> return 0;</p> <p> case IDM_BIG:<br /> CheckMenuRadioItem(hMenu, IDM_BIG, IDM_SMALL, IDM_BIG, MF_BYCOMMAND);<br /> SendMessage(hWnd, WM_SETICON, ICON_BIG, (LPARAM)hIconBig);<br /> return 0;</p> <p> case IDM_SMALL:<br /> CheckMenuRadioItem(hMenu, IDM_BIG, IDM_SMALL, IDM_SMALL, MF_BYCOMMAND);<br /> SendMessage(hWnd, WM_SETICON, ICON_BIG, (LPARAM)hIconSmall);<br /> return 0;</p> <p> case IDM_CUR1:<br /> CheckMenuRadioItem(hMenu, IDM_CUR1, IDM_CUR2, IDM_CUR1, MF_BYCOMMAND);<br /> SetClassLong(hWnd, GCL_HCURSOR, (LONG)hCur1);<br /> return 0;</p> <p> case IDM_CUR2:<br /> CheckMenuRadioItem(hMenu, IDM_CUR1, IDM_CUR2, IDM_CUR2, MF_BYCOMMAND);<br /> SetClassLong(hWnd, GCL_HCURSOR, (LONG)hCur2);<br /> return 0;<br /> }<br /> break;</p> <p> case WM_CLOSE:<br /> DestroyWindow(hWnd);<br /> PostQuitMessage(0);<br /> return 0;<br /> }<br /> return DefWindowProc(hWnd, uMsg, wParam, lParam);<br /> }</p> <p>int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)<br /> {<br /> WNDCLASSEX stWndCls;<br /> MSG stMsg;<br /> HWND hMainWnd;</p> <p> hInst = hInstance;<br /> hMenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDM_MAIN));<br /> RtlZeroMemory(&stWndCls, sizeof(stWndCls));<br /> stWndCls.cbWndExtra = 0;<br /> stWndCls.cbClsExtra = 0;<br /> stWndCls.hInstance = hInst;<br /> stWndCls.cbSize = sizeof(WNDCLASSEX);<br /> stWndCls.style = CS_HREDRAW | CS_VREDRAW;<br /> stWndCls.lpfnWndProc = ProcWinMain;<br /> stWndCls.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);<br /> stWndCls.lpszClassName = szName;<br /> stWndCls.lpszMenuName = NULL;</p> <p> RegisterClassEx(&stWndCls);<br /> hMainWnd = CreateWindowEx(WS_EX_CLIENTEDGE, szName, szName,<br /> WS_OVERLAPPEDWINDOW, 500, 200, 300, 185, NULL, hMenu, hInstance, NULL);</p> <p> ShowWindow(hMainWnd, SW_SHOWNORMAL);<br /> UpdateWindow(hMainWnd);</p> <p> while(GetMessage(&stMsg, NULL, 0, 0))<br /> {<br /> TranslateMessage(&stMsg);<br /> DispatchMessage(&stMsg);<br /> }<br /> return stMsg.wParam;<br /> }