学步园

（一）菜单和加速键

#include <windows.h><br /> #include "Resource.h"</p> <p>TCHAR szBuffer[128];<br /> TCHAR szClassName[] = TEXT("Menu Example");<br /> TCHAR szCaptionMain[] = TEXT("Menu");<br /> TCHAR szCaption[] = TEXT("菜单选择");<br /> TCHAR szMenuHelp[] = TEXT("帮助主题(&H)");<br /> TCHAR szMenuAbout[] = TEXT("关于本程序(&A)...");<br /> TCHAR szFormat[] = TEXT("您选择了菜单命令: %08x");<br /> HWND hMainWnd;<br /> HMENU hMenu;<br /> HMENU hSubMenu;<br /> HACCEL hAccelerator;</p> <p>VOID DisplayMenuItem(DWORD dwCommandID)<br /> {<br /> wsprintf(szBuffer, szFormat, dwCommandID);<br /> MessageBox(hMainWnd, szBuffer, szCaption, MB_OK);<br /> }</p> <p>VOID Quit()<br /> {<br /> DestroyWindow(hMainWnd);<br /> PostQuitMessage(0);<br /> }</p> <p>LRESULT CALLBACK ProcWinMain(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)<br /> {<br /> POINT stPt;<br /> HMENU hSysMenu;</p> <p> switch(uMsg)<br /> {<br /> case WM_CREATE:<br /> hSubMenu = GetSubMenu(hMenu, 1);<br /> hSysMenu = GetSystemMenu(hWnd, FALSE);<br /> AppendMenu(hSysMenu, MF_SEPARATOR, 0, NULL);<br /> AppendMenu(hSysMenu, 0, IDM_HELP, szMenuHelp);<br /> AppendMenu(hSysMenu, 0, IDM_ABOUT, szMenuAbout);<br /> return 0;</p> <p> case WM_COMMAND:<br /> DisplayMenuItem(wParam);<br /> switch(LOWORD(wParam))<br /> {<br /> case IDM_EXIT:<br /> Quit();<br /> return 0;<br /> case IDM_TOOLBAR:<br /> case IDM_TOOLBARTEXT:<br /> case IDM_INPUTBAR:<br /> case IDM_STATUSBAR:<br /> if(MF_CHECKED == GetMenuState(hMenu, (UINT)wParam, MF_BYCOMMAND))<br /> {<br /> CheckMenuItem(hMenu, (UINT)wParam, MF_UNCHECKED);<br /> }<br /> else<br /> {<br /> CheckMenuItem(hMenu, (UINT)wParam, MF_CHECKED);<br /> }<br /> return 0;<br /> case IDM_BIG:<br /> case IDM_SMALL:<br /> case IDM_LIST:<br /> case IDM_DETAIL:<br /> CheckMenuRadioItem(hMenu, IDM_BIG, IDM_DETAIL, LOWORD(wParam), MF_BYCOMMAND);<br /> return 0;<br /> }<br /> break;<br /> case WM_SYSCOMMAND:<br /> switch(LOWORD(wParam))<br /> {<br /> case IDM_HELP:<br /> case IDM_ABOUT:<br /> DisplayMenuItem(wParam);<br /> return 0;<br /> default:<br /> return DefWindowProc(hWnd, uMsg, wParam, lParam);<br /> }<br /> break;<br /> case WM_RBUTTONDOWN:<br /> GetCursorPos(&stPt);<br /> TrackPopupMenu(hSubMenu, TPM_LEFTALIGN, stPt.x, stPt.y, 0, hMainWnd, NULL);<br /> return 0;<br /> case WM_CLOSE:<br /> Quit();<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;</p> <p> RtlZeroMemory(&stWndCls, sizeof(stWndCls));<br /> stWndCls.hCursor = LoadCursor(NULL, IDC_ARROW);<br /> stWndCls.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MAIN));<br /> stWndCls.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MAIN));<br /> stWndCls.cbWndExtra = 0;<br /> stWndCls.cbClsExtra = 0;<br /> stWndCls.hInstance = hInstance;<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 = szClassName;<br /> stWndCls.lpszMenuName = NULL;</p> <p> RegisterClassEx(&stWndCls);</p> <p> hMenu = LoadMenu(hInstance, MAKEINTRESOURCE(IDM_MAIN));<br /> hAccelerator = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDA_ACCELERATOR));<br /> hMainWnd = CreateWindowEx(WS_EX_CLIENTEDGE, szClassName, szCaptionMain,<br /> WS_OVERLAPPEDWINDOW, 100, 100, 600, 400, NULL, hMenu, hInstance, NULL);</p> <p> ShowWindow(hMainWnd, SW_SHOWNORMAL);<br /> UpdateWindow(hMainWnd);</p> <p> while(GetMessage(&stMsg, NULL, 0, 0))<br /> {<br /> if(0 == TranslateAccelerator(hMainWnd, hAccelerator, &stMsg))<br /> {<br /> TranslateMessage(&stMsg);<br /> DispatchMessage(&stMsg);<br /> }<br /> }<br /> return stMsg.wParam;<br /> }