/** * @file win32drv.c * */ /********************* * INCLUDES *********************/ #include "win32drv.h" #if USE_WIN32DRV #include #include #include /********************* * DEFINES *********************/ #define WINDOW_EX_STYLE \ WS_EX_CLIENTEDGE #define WINDOW_STYLE \ (WS_OVERLAPPEDWINDOW & ~(WS_SIZEBOX | WS_MAXIMIZEBOX | WS_THICKFRAME)) #ifndef WIN32DRV_MONITOR_ZOOM #define WIN32DRV_MONITOR_ZOOM 1 #endif #ifndef USER_DEFAULT_SCREEN_DPI #define USER_DEFAULT_SCREEN_DPI 96 #endif /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ /** * @brief Creates a B8G8R8A8 frame buffer. * @param WindowHandle A handle to the window for the creation of the frame * buffer. If this value is NULL, the entire screen will be * referenced. * @param Width The width of the frame buffer. * @param Height The height of the frame buffer. * @param PixelBuffer The raw pixel buffer of the frame buffer you created. * @param PixelBufferSize The size of the frame buffer you created. * @return If the function succeeds, the return value is a handle to the device * context (DC) for the frame buffer. If the function fails, the return * value is NULL, and PixelBuffer parameter is NULL. */ static HDC lv_win32_create_frame_buffer( _In_opt_ HWND WindowHandle, _In_ LONG Width, _In_ LONG Height, _Out_ UINT32** PixelBuffer, _Out_ SIZE_T* PixelBufferSize); /** * @brief Enables WM_DPICHANGED message for child window for the associated * window. * @param WindowHandle The window you want to enable WM_DPICHANGED message for * child window. * @return If the function succeeds, the return value is non-zero. If the * function fails, the return value is zero. * @remarks You need to use this function in Windows 10 Threshold 1 or Windows * 10 Threshold 2. */ static BOOL lv_win32_enable_child_window_dpi_message( _In_ HWND WindowHandle); /** * @brief Registers a window as being touch-capable. * @param hWnd The handle of the window being registered. * @param ulFlags A set of bit flags that specify optional modifications. * @return If the function succeeds, the return value is nonzero. If the * function fails, the return value is zero. * @remark For more information, see RegisterTouchWindow. */ static BOOL lv_win32_register_touch_window( HWND hWnd, ULONG ulFlags); /** * @brief Retrieves detailed information about touch inputs associated with a * particular touch input handle. * @param hTouchInput The touch input handle received in the LPARAM of a touch * message. * @param cInputs The number of structures in the pInputs array. * @param pInputs A pointer to an array of TOUCHINPUT structures to receive * information about the touch points associated with the * specified touch input handle. * @param cbSize The size, in bytes, of a single TOUCHINPUT structure. * @return If the function succeeds, the return value is nonzero. If the * function fails, the return value is zero. * @remark For more information, see GetTouchInputInfo. */ static BOOL lv_win32_get_touch_input_info( HTOUCHINPUT hTouchInput, UINT cInputs, PTOUCHINPUT pInputs, int cbSize); /** * @brief Closes a touch input handle, frees process memory associated with it, and invalidates the handle. * @param hTouchInput The touch input handle received in the LPARAM of a touch * message. * @return If the function succeeds, the return value is nonzero. If the * function fails, the return value is zero. * @remark For more information, see CloseTouchInputHandle. */ static BOOL lv_win32_close_touch_input_handle( HTOUCHINPUT hTouchInput); /** * @brief Returns the dots per inch (dpi) value for the associated window. * @param WindowHandle The window you want to get information about. * @return The DPI for the window. */ static UINT lv_win32_get_dpi_for_window( _In_ HWND WindowHandle); static void lv_win32_display_driver_flush_callback( lv_disp_drv_t* disp_drv, const lv_area_t* area, lv_color_t* color_p); static void lv_win32_display_driver_rounder_callback( lv_disp_drv_t* disp_drv, lv_area_t* area); static void lv_win32_pointer_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data); static void lv_win32_keypad_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data); static void lv_win32_encoder_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data); static LRESULT CALLBACK lv_win32_window_message_callback( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam); static void lv_win32_message_handler( lv_timer_t* param); /********************** * GLOBAL VARIABLES **********************/ EXTERN_C bool lv_win32_quit_signal = false; EXTERN_C lv_indev_t* lv_win32_pointer_device_object = NULL; EXTERN_C lv_indev_t* lv_win32_keypad_device_object = NULL; EXTERN_C lv_indev_t* lv_win32_encoder_device_object = NULL; /********************** * STATIC VARIABLES **********************/ static HINSTANCE g_instance_handle = NULL; static HWND g_window_handle = NULL; static HDC g_buffer_dc_handle = NULL; static UINT32* g_pixel_buffer = NULL; static SIZE_T g_pixel_buffer_size = 0; static lv_disp_t* g_display = NULL; static bool volatile g_mouse_pressed = false; static LPARAM volatile g_mouse_value = 0; static bool volatile g_mousewheel_pressed = false; static int16_t volatile g_mousewheel_value = 0; static bool volatile g_keyboard_pressed = false; static WPARAM volatile g_keyboard_value = 0; static int volatile g_dpi_value = USER_DEFAULT_SCREEN_DPI; /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ EXTERN_C void lv_win32_add_all_input_devices_to_group( lv_group_t* group) { if (!group) { LV_LOG_WARN( "The group object is NULL. Get the default group object instead."); group = lv_group_get_default(); if (!group) { LV_LOG_WARN( "The default group object is NULL. Create a new group object " "and set it to default instead."); group = lv_group_create(); if (group) { lv_group_set_default(group); } } } LV_ASSERT_MSG(group, "Cannot obtain an available group object."); lv_indev_set_group(lv_win32_pointer_device_object, group); lv_indev_set_group(lv_win32_keypad_device_object, group); lv_indev_set_group(lv_win32_encoder_device_object, group); } EXTERN_C bool lv_win32_init( HINSTANCE instance_handle, int show_window_mode, lv_coord_t hor_res, lv_coord_t ver_res, HICON icon_handle) { WNDCLASSEXW WindowClass; WindowClass.cbSize = sizeof(WNDCLASSEX); WindowClass.style = 0; WindowClass.lpfnWndProc = lv_win32_window_message_callback; WindowClass.cbClsExtra = 0; WindowClass.cbWndExtra = 0; WindowClass.hInstance = instance_handle; WindowClass.hIcon = icon_handle; WindowClass.hCursor = LoadCursorW(NULL, IDC_ARROW); WindowClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); WindowClass.lpszMenuName = NULL; WindowClass.lpszClassName = L"lv_sim_visual_studio"; WindowClass.hIconSm = icon_handle; if (!RegisterClassExW(&WindowClass)) { return false; } g_instance_handle = instance_handle; g_window_handle = CreateWindowExW( WINDOW_EX_STYLE, WindowClass.lpszClassName, L"LVGL Simulator for Windows Desktop", WINDOW_STYLE, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, instance_handle, NULL); if (!g_window_handle) { return false; } g_dpi_value = lv_win32_get_dpi_for_window(g_window_handle); RECT WindowSize; WindowSize.left = 0; WindowSize.right = MulDiv( hor_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI); WindowSize.top = 0; WindowSize.bottom = MulDiv( ver_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI); AdjustWindowRectEx( &WindowSize, WINDOW_STYLE, FALSE, WINDOW_EX_STYLE); OffsetRect( &WindowSize, -WindowSize.left, -WindowSize.top); SetWindowPos( g_window_handle, NULL, 0, 0, WindowSize.right, WindowSize.bottom, SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE); lv_win32_register_touch_window(g_window_handle, 0); lv_timer_create(lv_win32_message_handler, 0, NULL); lv_win32_enable_child_window_dpi_message(g_window_handle); HDC hNewBufferDC = lv_win32_create_frame_buffer( g_window_handle, hor_res, ver_res, &g_pixel_buffer, &g_pixel_buffer_size); DeleteDC(g_buffer_dc_handle); g_buffer_dc_handle = hNewBufferDC; static lv_disp_draw_buf_t display_buffer; lv_disp_draw_buf_init( &display_buffer, (lv_color_t*)malloc(hor_res * ver_res * sizeof(lv_color_t)), NULL, hor_res * ver_res); static lv_disp_drv_t display_driver; lv_disp_drv_init(&display_driver); display_driver.hor_res = hor_res; display_driver.ver_res = ver_res; display_driver.flush_cb = lv_win32_display_driver_flush_callback; display_driver.draw_buf = &display_buffer; display_driver.rounder_cb = lv_win32_display_driver_rounder_callback; g_display = lv_disp_drv_register(&display_driver); static lv_indev_drv_t pointer_driver; lv_indev_drv_init(&pointer_driver); pointer_driver.type = LV_INDEV_TYPE_POINTER; pointer_driver.read_cb = lv_win32_pointer_driver_read_callback; lv_win32_pointer_device_object = lv_indev_drv_register(&pointer_driver); static lv_indev_drv_t keypad_driver; lv_indev_drv_init(&keypad_driver); keypad_driver.type = LV_INDEV_TYPE_KEYPAD; keypad_driver.read_cb = lv_win32_keypad_driver_read_callback; lv_win32_keypad_device_object = lv_indev_drv_register(&keypad_driver); static lv_indev_drv_t encoder_driver; lv_indev_drv_init(&encoder_driver); encoder_driver.type = LV_INDEV_TYPE_ENCODER; encoder_driver.read_cb = lv_win32_encoder_driver_read_callback; lv_win32_encoder_device_object = lv_indev_drv_register(&encoder_driver); ShowWindow(g_window_handle, show_window_mode); UpdateWindow(g_window_handle); return true; } /********************** * STATIC FUNCTIONS **********************/ static HDC lv_win32_create_frame_buffer( HWND WindowHandle, LONG Width, LONG Height, UINT32** PixelBuffer, SIZE_T* PixelBufferSize) { HDC hFrameBufferDC = NULL; if (PixelBuffer && PixelBufferSize) { HDC hWindowDC = GetDC(WindowHandle); if (hWindowDC) { hFrameBufferDC = CreateCompatibleDC(hWindowDC); ReleaseDC(WindowHandle, hWindowDC); } if (hFrameBufferDC) { #if LV_COLOR_DEPTH == 32 BITMAPINFO BitmapInfo = { 0 }; #elif LV_COLOR_DEPTH == 16 typedef struct _BITMAPINFO_16BPP { BITMAPINFOHEADER bmiHeader; DWORD bmiColorMask[3]; } BITMAPINFO_16BPP, *PBITMAPINFO_16BPP; BITMAPINFO_16BPP BitmapInfo = { 0 }; #elif LV_COLOR_DEPTH == 8 typedef struct _BITMAPINFO_8BPP { BITMAPINFOHEADER bmiHeader; RGBQUAD bmiColors[256]; } BITMAPINFO_8BPP, *PBITMAPINFO_8BPP; BITMAPINFO_8BPP BitmapInfo = { 0 }; #elif LV_COLOR_DEPTH == 1 typedef struct _BITMAPINFO_1BPP { BITMAPINFOHEADER bmiHeader; RGBQUAD bmiColors[2]; } BITMAPINFO_1BPP, *PBITMAPINFO_1BPP; BITMAPINFO_1BPP BitmapInfo = { 0 }; #else BITMAPINFO BitmapInfo = { 0 }; #endif BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); BitmapInfo.bmiHeader.biWidth = Width; BitmapInfo.bmiHeader.biHeight = -Height; BitmapInfo.bmiHeader.biPlanes = 1; #if LV_COLOR_DEPTH == 32 BitmapInfo.bmiHeader.biBitCount = 32; BitmapInfo.bmiHeader.biCompression = BI_RGB; #elif LV_COLOR_DEPTH == 16 BitmapInfo.bmiHeader.biBitCount = 16; BitmapInfo.bmiHeader.biCompression = BI_BITFIELDS; BitmapInfo.bmiColorMask[0] = 0xF800; BitmapInfo.bmiColorMask[1] = 0x07E0; BitmapInfo.bmiColorMask[2] = 0x001F; #elif LV_COLOR_DEPTH == 8 BitmapInfo.bmiHeader.biBitCount = 8; BitmapInfo.bmiHeader.biCompression = BI_RGB; for (size_t i = 0; i < 256; ++i) { lv_color8_t color; color.full = i; BitmapInfo.bmiColors[i].rgbRed = LV_COLOR_GET_R(color) * 36; BitmapInfo.bmiColors[i].rgbGreen = LV_COLOR_GET_G(color) * 36; BitmapInfo.bmiColors[i].rgbBlue = LV_COLOR_GET_B(color) * 85; BitmapInfo.bmiColors[i].rgbReserved = 0xFF; } #elif LV_COLOR_DEPTH == 1 BitmapInfo.bmiHeader.biBitCount = 8; BitmapInfo.bmiHeader.biCompression = BI_RGB; BitmapInfo.bmiHeader.biClrUsed = 2; BitmapInfo.bmiHeader.biClrImportant = 2; BitmapInfo.bmiColors[0].rgbRed = 0x00; BitmapInfo.bmiColors[0].rgbGreen = 0x00; BitmapInfo.bmiColors[0].rgbBlue = 0x00; BitmapInfo.bmiColors[0].rgbReserved = 0xFF; BitmapInfo.bmiColors[1].rgbRed = 0xFF; BitmapInfo.bmiColors[1].rgbGreen = 0xFF; BitmapInfo.bmiColors[1].rgbBlue = 0xFF; BitmapInfo.bmiColors[1].rgbReserved = 0xFF; #else BitmapInfo.bmiHeader.biBitCount = 32; BitmapInfo.bmiHeader.biCompression = BI_RGB; #endif HBITMAP hBitmap = CreateDIBSection( hFrameBufferDC, (PBITMAPINFO)(&BitmapInfo), DIB_RGB_COLORS, (void**)PixelBuffer, NULL, 0); if (hBitmap) { #if LV_COLOR_DEPTH == 32 *PixelBufferSize = Width * Height * sizeof(UINT32); #elif LV_COLOR_DEPTH == 16 *PixelBufferSize = Width * Height * sizeof(UINT16); #elif LV_COLOR_DEPTH == 8 *PixelBufferSize = Width * Height * sizeof(UINT8); #elif LV_COLOR_DEPTH == 1 *PixelBufferSize = Width * Height * sizeof(UINT8); #else *PixelBufferSize = Width * Height * sizeof(UINT32); #endif DeleteObject(SelectObject(hFrameBufferDC, hBitmap)); DeleteObject(hBitmap); } else { DeleteDC(hFrameBufferDC); hFrameBufferDC = NULL; } } } return hFrameBufferDC; } static BOOL lv_win32_enable_child_window_dpi_message( HWND WindowHandle) { // This hack is only for Windows 10 TH1/TH2 only. // We don't need this hack if the Per Monitor Aware V2 is existed. OSVERSIONINFOEXW OSVersionInfoEx = { 0 }; OSVersionInfoEx.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW); OSVersionInfoEx.dwMajorVersion = 10; OSVersionInfoEx.dwMinorVersion = 0; OSVersionInfoEx.dwBuildNumber = 14393; if (!VerifyVersionInfoW( &OSVersionInfoEx, VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER, VerSetConditionMask( VerSetConditionMask( VerSetConditionMask( 0, VER_MAJORVERSION, VER_GREATER_EQUAL), VER_MINORVERSION, VER_GREATER_EQUAL), VER_BUILDNUMBER, VER_LESS))) { return FALSE; } HMODULE ModuleHandle = GetModuleHandleW(L"user32.dll"); if (!ModuleHandle) { return FALSE; } typedef BOOL(WINAPI* FunctionType)(HWND, BOOL); FunctionType pFunction = (FunctionType)( GetProcAddress(ModuleHandle, "EnableChildWindowDpiMessage")); if (!pFunction) { return FALSE; } return pFunction(WindowHandle, TRUE); } static BOOL lv_win32_register_touch_window( HWND hWnd, ULONG ulFlags) { HMODULE ModuleHandle = GetModuleHandleW(L"user32.dll"); if (!ModuleHandle) { return FALSE; } typedef BOOL(WINAPI* FunctionType)(HWND, ULONG); FunctionType pFunction = (FunctionType)( GetProcAddress(ModuleHandle, "RegisterTouchWindow")); if (!pFunction) { return FALSE; } return pFunction(hWnd, ulFlags); } static BOOL lv_win32_get_touch_input_info( HTOUCHINPUT hTouchInput, UINT cInputs, PTOUCHINPUT pInputs, int cbSize) { HMODULE ModuleHandle = GetModuleHandleW(L"user32.dll"); if (!ModuleHandle) { return FALSE; } typedef BOOL(WINAPI* FunctionType)(HTOUCHINPUT, UINT, PTOUCHINPUT, int); FunctionType pFunction = (FunctionType)( GetProcAddress(ModuleHandle, "GetTouchInputInfo")); if (!pFunction) { return FALSE; } return pFunction(hTouchInput, cInputs, pInputs, cbSize); } static BOOL lv_win32_close_touch_input_handle( HTOUCHINPUT hTouchInput) { HMODULE ModuleHandle = GetModuleHandleW(L"user32.dll"); if (!ModuleHandle) { return FALSE; } typedef BOOL(WINAPI* FunctionType)(HTOUCHINPUT); FunctionType pFunction = (FunctionType)( GetProcAddress(ModuleHandle, "CloseTouchInputHandle")); if (!pFunction) { return FALSE; } return pFunction(hTouchInput); } static UINT lv_win32_get_dpi_for_window( _In_ HWND WindowHandle) { UINT Result = (UINT)(-1); HMODULE ModuleHandle = LoadLibraryW(L"SHCore.dll"); if (ModuleHandle) { typedef enum MONITOR_DPI_TYPE_PRIVATE { MDT_EFFECTIVE_DPI = 0, MDT_ANGULAR_DPI = 1, MDT_RAW_DPI = 2, MDT_DEFAULT = MDT_EFFECTIVE_DPI } MONITOR_DPI_TYPE_PRIVATE; typedef HRESULT(WINAPI* FunctionType)( HMONITOR, MONITOR_DPI_TYPE_PRIVATE, UINT*, UINT*); FunctionType pFunction = (FunctionType)( GetProcAddress(ModuleHandle, "GetDpiForMonitor")); if (pFunction) { HMONITOR MonitorHandle = MonitorFromWindow( WindowHandle, MONITOR_DEFAULTTONEAREST); UINT dpiX = 0; UINT dpiY = 0; if (SUCCEEDED(pFunction( MonitorHandle, MDT_EFFECTIVE_DPI, &dpiX, &dpiY))) { Result = dpiX; } } FreeLibrary(ModuleHandle); } if (Result == (UINT)(-1)) { HDC hWindowDC = GetDC(WindowHandle); if (hWindowDC) { Result = GetDeviceCaps(hWindowDC, LOGPIXELSX); ReleaseDC(WindowHandle, hWindowDC); } } if (Result == (UINT)(-1)) { Result = USER_DEFAULT_SCREEN_DPI; } return Result; } static void lv_win32_display_driver_flush_callback( lv_disp_drv_t* disp_drv, const lv_area_t* area, lv_color_t* color_p) { #if (LV_COLOR_DEPTH == 32) || \ (LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP == 0) || \ (LV_COLOR_DEPTH == 8) || \ (LV_COLOR_DEPTH == 1) UNREFERENCED_PARAMETER(area); memcpy(g_pixel_buffer, color_p, g_pixel_buffer_size); #elif (LV_COLOR_DEPTH == 16 && LV_COLOR_16_SWAP != 0) SIZE_T count = g_pixel_buffer_size / sizeof(UINT16); PUINT16 source = (PUINT16)color_p; PUINT16 destination = (PUINT16)g_pixel_buffer; for (SIZE_T i = 0; i < count; ++i) { UINT16 current = *source; *destination = (LOBYTE(current) << 8) | HIBYTE(current); ++source; ++destination; } #else for (int y = area->y1; y <= area->y2; ++y) { for (int x = area->x1; x <= area->x2; ++x) { g_pixel_buffer[y * disp_drv->hor_res + x] = lv_color_to32(*color_p); color_p++; } } #endif HDC hWindowDC = GetDC(g_window_handle); if (hWindowDC) { int PreviousMode = SetStretchBltMode( hWindowDC, HALFTONE); StretchBlt( hWindowDC, 0, 0, MulDiv( disp_drv->hor_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI), MulDiv( disp_drv->ver_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI), g_buffer_dc_handle, 0, 0, disp_drv->hor_res, disp_drv->ver_res, SRCCOPY); SetStretchBltMode( hWindowDC, PreviousMode); ReleaseDC(g_window_handle, hWindowDC); } lv_disp_flush_ready(disp_drv); } static void lv_win32_display_driver_rounder_callback( lv_disp_drv_t* disp_drv, lv_area_t* area) { area->x1 = 0; area->x2 = disp_drv->hor_res - 1; area->y1 = 0; area->y2 = disp_drv->ver_res - 1; } static void lv_win32_pointer_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data) { UNREFERENCED_PARAMETER(indev_drv); data->state = (lv_indev_state_t)( g_mouse_pressed ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL); data->point.x = MulDiv( GET_X_LPARAM(g_mouse_value), USER_DEFAULT_SCREEN_DPI, WIN32DRV_MONITOR_ZOOM * g_dpi_value); data->point.y = MulDiv( GET_Y_LPARAM(g_mouse_value), USER_DEFAULT_SCREEN_DPI, WIN32DRV_MONITOR_ZOOM * g_dpi_value); if (data->point.x < 0) { data->point.x = 0; } if (data->point.x > g_display->driver->hor_res - 1) { data->point.x = g_display->driver->hor_res - 1; } if (data->point.y < 0) { data->point.y = 0; } if (data->point.y > g_display->driver->ver_res - 1) { data->point.y = g_display->driver->ver_res - 1; } } static void lv_win32_keypad_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data) { UNREFERENCED_PARAMETER(indev_drv); data->state = (lv_indev_state_t)( g_keyboard_pressed ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL); WPARAM KeyboardValue = g_keyboard_value; switch (KeyboardValue) { case VK_UP: data->key = LV_KEY_UP; break; case VK_DOWN: data->key = LV_KEY_DOWN; break; case VK_LEFT: data->key = LV_KEY_LEFT; break; case VK_RIGHT: data->key = LV_KEY_RIGHT; break; case VK_ESCAPE: data->key = LV_KEY_ESC; break; case VK_DELETE: data->key = LV_KEY_DEL; break; case VK_BACK: data->key = LV_KEY_BACKSPACE; break; case VK_RETURN: data->key = LV_KEY_ENTER; break; case VK_NEXT: data->key = LV_KEY_NEXT; break; case VK_PRIOR: data->key = LV_KEY_PREV; break; case VK_HOME: data->key = LV_KEY_HOME; break; case VK_END: data->key = LV_KEY_END; break; default: if (KeyboardValue >= 'A' && KeyboardValue <= 'Z') { KeyboardValue += 0x20; } data->key = (uint32_t)KeyboardValue; break; } } static void lv_win32_encoder_driver_read_callback( lv_indev_drv_t* indev_drv, lv_indev_data_t* data) { UNREFERENCED_PARAMETER(indev_drv); data->state = (lv_indev_state_t)( g_mousewheel_pressed ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL); data->enc_diff = g_mousewheel_value; g_mousewheel_value = 0; } static LRESULT CALLBACK lv_win32_window_message_callback( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_MOUSEMOVE: case WM_LBUTTONDOWN: case WM_LBUTTONUP: case WM_MBUTTONDOWN: case WM_MBUTTONUP: { g_mouse_value = lParam; if (uMsg == WM_LBUTTONDOWN || uMsg == WM_LBUTTONUP) { g_mouse_pressed = (uMsg == WM_LBUTTONDOWN); } else if (uMsg == WM_MBUTTONDOWN || uMsg == WM_MBUTTONUP) { g_mousewheel_pressed = (uMsg == WM_MBUTTONDOWN); } return 0; } case WM_KEYDOWN: case WM_KEYUP: { g_keyboard_pressed = (uMsg == WM_KEYDOWN); g_keyboard_value = wParam; break; } case WM_MOUSEWHEEL: { g_mousewheel_value = -(GET_WHEEL_DELTA_WPARAM(wParam) / WHEEL_DELTA); break; } case WM_TOUCH: { UINT cInputs = LOWORD(wParam); HTOUCHINPUT hTouchInput = (HTOUCHINPUT)(lParam); PTOUCHINPUT pInputs = malloc(cInputs * sizeof(TOUCHINPUT)); if (pInputs) { if (lv_win32_get_touch_input_info( hTouchInput, cInputs, pInputs, sizeof(TOUCHINPUT))) { for (UINT i = 0; i < cInputs; ++i) { POINT Point; Point.x = TOUCH_COORD_TO_PIXEL(pInputs[i].x); Point.y = TOUCH_COORD_TO_PIXEL(pInputs[i].y); if (!ScreenToClient(hWnd, &Point)) { continue; } uint16_t x = (uint16_t)(Point.x & 0xffff); uint16_t y = (uint16_t)(Point.y & 0xffff); DWORD MousePressedMask = TOUCHEVENTF_MOVE | TOUCHEVENTF_DOWN; g_mouse_value = (y << 16) | x; g_mouse_pressed = (pInputs[i].dwFlags & MousePressedMask); } } free(pInputs); } lv_win32_close_touch_input_handle(hTouchInput); break; } case WM_DPICHANGED: { g_dpi_value = HIWORD(wParam); LPRECT SuggestedRect = (LPRECT)lParam; SetWindowPos( hWnd, NULL, SuggestedRect->left, SuggestedRect->top, SuggestedRect->right, SuggestedRect->bottom, SWP_NOZORDER | SWP_NOACTIVATE); RECT ClientRect; GetClientRect(hWnd, &ClientRect); int WindowWidth = MulDiv( g_display->driver->hor_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI); int WindowHeight = MulDiv( g_display->driver->ver_res * WIN32DRV_MONITOR_ZOOM, g_dpi_value, USER_DEFAULT_SCREEN_DPI); SetWindowPos( hWnd, NULL, SuggestedRect->left, SuggestedRect->top, SuggestedRect->right + (WindowWidth - ClientRect.right), SuggestedRect->bottom + (WindowHeight - ClientRect.bottom), SWP_NOZORDER | SWP_NOACTIVATE); break; } case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProcW(hWnd, uMsg, wParam, lParam); } return 0; } static void lv_win32_message_handler( lv_timer_t* param) { UNREFERENCED_PARAMETER(param); MSG Message; BOOL Result = PeekMessageW(&Message, NULL, 0, 0, TRUE); if (Result != 0 && Result != -1) { TranslateMessage(&Message); DispatchMessageW(&Message); if (Message.message == WM_QUIT) { lv_win32_quit_signal = true; } } } #endif /*USE_WIN32DRV*/