使用raw input 代替全局鍵盤鉤子

//關於raw input 請查看msdn https://msdn.microsoft.com/en-us/library/windows/desktop/ms645536%28v=vs.85%29.aspx

//效率 比 鍵盤鉤子高太多 ,可是BCB 中沒法識別 RAWINPUTDEVICE 結構 和RAW相關的函數

//
rawinput4.cpp : 定義應用程序的入口點。 // #include "stdafx.h" #include "rawinput4.h" #include <set> #include <string> #include <algorithm> using namespace std; #define MAX_LOADSTRING 100 // 全局變量: HINSTANCE hInst; // 當前實例 TCHAR szTitle[MAX_LOADSTRING]; // 標題欄文本 TCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口類名 set<DWORD> keys; //避免按住不放不停的響應keydown bool IsInKeys(DWORD key) { set<DWORD>::iterator itor = find(keys.begin(),keys.end(),key); bool result = false; if (itor == keys.end()) { keys.insert(key); result = false; } else { result = true; } return result; } //鬆開的時候,將key從set中移除 void erasekey(DWORD key) { keys.erase(key); } // 此代碼模塊中包含的函數的前向聲明: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM); void RegKeyboardRawInput(HWND hwnd) { RAWINPUTDEVICE Rid[1]; Rid[0].usUsagePage = 0x01; Rid[0].usUsage = 0x06; Rid[0].dwFlags = RIDEV_INPUTSINK;//RIDEV_NOLEGACY; // adds HID keyboard and also ignores legacy keyboard messages Rid[0].hwndTarget = hwnd; if (RegisterRawInputDevices(Rid, 1, sizeof(Rid[0])) == FALSE) { MessageBox(NULL,L"註冊raw input 失敗!",L"註冊 raw input",MB_OK+MB_ICONINFORMATION); } } int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { UNREFERENCED_PARAMETER(hPrevInstance); UNREFERENCED_PARAMETER(lpCmdLine); MSG msg; HACCEL hAccelTable; // 初始化全局字符串 LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_RAWINPUT4, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); // 執行應用程序初始化: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_RAWINPUT4)); // 主消息循環: while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } // // 函數: MyRegisterClass() // // 目的: 註冊窗口類。 // // 註釋: // // 僅當但願 // 此代碼與添加到 Windows 95 中的「RegisterClassEx」 // 函數以前的 Win32 系統兼容時,才須要此函數及其用法。調用此函數十分重要, // 這樣應用程序就能夠得到關聯的 // 「格式正確的」小圖標。 // ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_RAWINPUT4)); wcex.hCursor = LoadCursor(NULL, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = MAKEINTRESOURCE(IDC_RAWINPUT4); wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); return RegisterClassEx(&wcex); } // // 函數: InitInstance(HINSTANCE, int) // // 目的: 保存實例句柄並建立主窗口 // // 註釋: // // 在此函數中,咱們在全局變量中保存實例句柄並 // 建立和顯示主程序窗口。 // BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hInst = hInstance; // 將實例句柄存儲在全局變量中 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); RegKeyboardRawInput(hWnd); return TRUE; } // // 函數: WndProc(HWND, UINT, WPARAM, LPARAM) // // 目的: 處理主窗口的消息。 // // WM_COMMAND - 處理應用程序菜單 // WM_PAINT - 繪製主窗口 // WM_DESTROY - 發送退出消息並返回 // // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; switch (message) { case WM_COMMAND: wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); // 分析菜單選擇: switch (wmId) { case IDM_ABOUT: DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); // TODO: 在此添加任意繪圖代碼... EndPaint(hWnd, &ps); break; case WM_DESTROY: PostQuitMessage(0); break; case WM_INPUT: { UINT dwSize; GetRawInputData((HRAWINPUT)lParam, RID_INPUT, NULL, &dwSize, sizeof(RAWINPUTHEADER)); LPBYTE lpb = new BYTE[dwSize]; if (lpb == NULL) { return 0; } if (GetRawInputData((HRAWINPUT)lParam, RID_INPUT, lpb, &dwSize, sizeof(RAWINPUTHEADER)) != dwSize ) OutputDebugString (TEXT("GetRawInputData doesn't return correct size !\n")); RAWINPUT* raw = (RAWINPUT*)lpb; if (raw->header.dwType == RIM_TYPEKEYBOARD) { if ( raw->data.keyboard.Message == WM_KEYDOWN) { if (!IsInKeys(raw->data.keyboard.VKey)) { char keytext[10] = {0}; BYTE state[256] = {0}; //經過虛擬鍵盤碼獲得名字 ToAscii(raw->data.keyboard.VKey,raw->data.keyboard.MakeCode,state,(LPWORD)keytext ,0); char buf[10] = {0}; string s = "鍵盤按下 虛鍵碼:"+ string(keytext); MessageBoxA(NULL,s.c_str(),"鍵盤",MB_OK); } } if( raw->data.keyboard.Message == WM_KEYUP) { erasekey(raw->data.keyboard.VKey); } } delete[] lpb; return 0; } default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // 「關於」框的消息處理程序。 INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(lParam); switch (message) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return (INT_PTR)TRUE; } break; } return (INT_PTR)FALSE; }
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