MFC透明菜单CMenu

// tMenu2.cpp : Defines the entry point for the application. // #include "stdafx.h" #include "tMenu2.h" #define MAX_LOADSTRING 100 // Global Variables: HINSTANCE hInst; // current instance TCHAR szTitle[MAX_LOADSTRING]; // The title bar text TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name WNDPROC wpOldMenuProc; // Original Menu Procedure // Forward declarations of functions included in this code module: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); ATOM MyMenuRegisterClass(HINSTANCE); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK MenuWndProc(HWND, UINT, WPARAM, LPARAM); LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM); VOID PrintEr(); int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { // TODO: Place code here. MSG msg; HACCEL hAccelTable; WNDCLASS wc; // Initialize global strings LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_TMENU2, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); GetClassInfo(NULL, _T("#32768"), &wc); wc.hInstance = hInstance; wpOldMenuProc = wc.lpfnWndProc; wc.lpfnWndProc = (WNDPROC)MenuWndProc; SetLastError(0); if(RegisterClass(&wc)==0) PrintEr(); // Perform application initialization: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_TMENU2); // Main message loop: while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } // // FUNCTION: MyRegisterClass() // // PURPOSE: Registers the window class. // // COMMENTS: // // This function and its usage are only necessary if you want this code // to be compatible with Win32 systems prior to the 'RegisterClassEx' // function that was added to Windows 95. It is important to call this function // so that the application will get 'well formed' small icons associated // with it. // ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = (WNDPROC)WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_TMENU2); wcex.hCursor = LoadCursor(NULL, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = (LPCTSTR)IDC_TMENU2; wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL); return RegisterClassEx(&wcex); } // // FUNCTION: InitInstance(HANDLE, int) // // PURPOSE: Saves instance handle and creates main window // // COMMENTS: // // In this function, we save the instance handle in a global variable and // create and display the main program window. // BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hInst = hInstance; // Store instance handle in our global variable hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } VOID PrintEr() { LPVOID lpMsgBuf; FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language (LPTSTR) &lpMsgBuf, 0, NULL ); // Display the string. MessageBox( NULL, (LPCSTR)lpMsgBuf, "GetLastError", MB_OK|MB_ICONINFORMATION ); // Free the buffer. LocalFree( lpMsgBuf ); } // // FUNCTION: WndProc(HWND, unsigned, WORD, LONG) // // PURPOSE: Processes messages for the main window. // // WM_COMMAND - process the application menu // WM_PAINT - Paint the main window // WM_DESTROY - post a quit message and return // // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; //PAINTSTRUCT ps; //HDC hdc; static HWND hWndEdit; switch (message) { case WM_CREATE: hWndEdit = CreateWindowEx(WS_EX_CLIENTEDGE, _T("EDIT"),NULL,WS_CHILD | WS_VISIBLE | ES_MULTILINE | WS_HSCROLL | WS_VSCROLL,0,0,0,0,hWnd,(HMENU)NULL,hInst,NULL); SendMessage(hWndEdit, WM_SETFONT, (WPARAM)GetStockObject(SYSTEM_FIXED_FONT), MAKELPARAM(TRUE, 0)); break; case WM_SIZE: { RECT rcClient={0}; GetClientRect(hWnd, &rcClient); MoveWindow(hWndEdit, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom, TRUE); break; } case WM_COMMAND: wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); // Parse the menu selections: switch (wmId) { case IDM_ABOUT: DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // Message handler for about box. LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) { case WM_INITDIALOG: return TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return TRUE; } break; } return FALSE; } //Message Handler for Menu LRESULT CALLBACK MenuWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch(uMsg) { case WM_CREATE: { OSVERSIONINFO ovi; ovi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); BOOL bRet = ::GetVersionEx(&ovi); // Toggle menu fading/animation mode (Windows2K or later) BOOL bMenuFading = FALSE; BOOL bMenuAnim = FALSE; if( ovi.dwMajorVersion >= 5 ) { bRet = ::SystemParametersInfo(SPI_GETMENUFADE, 0, &bMenuFading, 0); bRet = ::SystemParametersInfo(SPI_GETMENUANIMATION, 0, &bMenuAnim, 0); bRet = ::SystemParametersInfo(SPI_SETMENUFADE, 0, (LPVOID) FALSE, SPIF_SENDWININICHANGE); bRet = ::SystemParametersInfo(SPI_SETMENUANIMATION, 0, (LPVOID) FALSE, SPIF_SENDWININICHANGE); } LRESULT lRet = CallWindowProc(wpOldMenuProc, hWnd, uMsg, wParam, lParam); DWORD dwStyle = 0; dwStyle = GetWindowLong(hWnd, GWL_EXSTYLE); dwStyle &= ~WS_EX_WINDOWEDGE; dwStyle &= ~WS_EX_DLGMODALFRAME; SetLastError(0); dwStyle = SetWindowLong(hWnd, GWL_EXSTYLE, dwStyle|WS_EX_LAYERED); SetLayeredWindowAttributes(hWnd, 0, 180, LWA_ALPHA); if (dwStyle==0) PrintEr(); if( ovi.dwMajorVersion >= 5 ) { bRet = ::SystemParametersInfo(SPI_SETMENUFADE, 0, (LPVOID) bMenuFading, SPIF_SENDWININICHANGE); bRet = ::SystemParametersInfo(SPI_SETMENUANIMATION, 0, (LPVOID) bMenuAnim, SPIF_SENDWININICHANGE); } return lRet; } break; default: return CallWindowProc(wpOldMenuProc, hWnd, uMsg, wParam, lParam); } return 0; }