public bool ProcessKeyboardEvent(IntPtr raw) { bool processed = false; RawInput rin; if (Functions.GetRawInputData(raw, out rin) > 0) { bool pressed = rin.Data.Keyboard.Message == (int)WindowMessage.KEYDOWN || rin.Data.Keyboard.Message == (int)WindowMessage.SYSKEYDOWN; var scancode = rin.Data.Keyboard.MakeCode; var vkey = rin.Data.Keyboard.VKey; bool extended0 = (int)(rin.Data.Keyboard.Flags & RawInputKeyboardDataFlags.E0) != 0; bool extended1 = (int)(rin.Data.Keyboard.Flags & RawInputKeyboardDataFlags.E1) != 0; bool is_valid = true; ContextHandle handle = new ContextHandle(rin.Header.Device); KeyboardState keyboard; if (!rawids.ContainsKey(handle)) { //RefreshDevices(); } if (keyboards.Count == 0) { return(false); } // Note:For some reason, my Microsoft Digital 3000 keyboard reports 0 // as rin.Header.Device for the "zoom-in/zoom-out" buttons. // That's problematic, because no device has a "0" id. // As a workaround, we'll add those buttons to the first device (if any). int keyboard_handle = rawids.ContainsKey(handle) ? rawids[handle] : 0; keyboard = keyboards[keyboard_handle]; Key key = WinKeyMap.TranslateKey(scancode, vkey, extended0, extended1, out is_valid); if (is_valid) { keyboard.SetKeyState(key, pressed); processed = true; } lock (UpdateLock) { keyboards[keyboard_handle] = keyboard; processed = true; } } return(processed); }
IntPtr WindowProcedure(IntPtr handle, WindowMessage message, IntPtr wParam, IntPtr lParam) { switch (message) { #region Size / Move / Style events case WindowMessage.ACTIVATE: // See http://msdn.microsoft.com/en-us/library/ms646274(VS.85).aspx (WM_ACTIVATE notification): // wParam: The low-order word specifies whether the window is being activated or deactivated. bool new_focused_state = Focused; if (IntPtr.Size == 4) { focused = (wParam.ToInt32() & 0xFFFF) != 0; } else { focused = (wParam.ToInt64() & 0xFFFF) != 0; } if (new_focused_state != Focused) { FocusedChanged(this, EventArgs.Empty); } break; case WindowMessage.ENTERMENULOOP: case WindowMessage.ENTERSIZEMOVE: // Entering the modal size/move loop: we don't want rendering to // stop during this time, so we register a timer callback to continue // processing from time to time. is_in_modal_loop = true; StartTimer(handle); if (!CursorVisible) { UngrabCursor(); } break; case WindowMessage.EXITMENULOOP: case WindowMessage.EXITSIZEMOVE: // Exiting from Modal size/move loop: the timer callback is no longer // necessary. is_in_modal_loop = false; StopTimer(handle); // Ensure cursor remains grabbed if (!CursorVisible) { GrabCursor(); } break; case WindowMessage.ERASEBKGND: return(new IntPtr(1)); case WindowMessage.WINDOWPOSCHANGED: unsafe { WindowPosition *pos = (WindowPosition *)lParam; if (window != null && pos->hwnd == window.Handle) { Point new_location = new Point(pos->x, pos->y); if (Location != new_location) { bounds.Location = new_location; Move(this, EventArgs.Empty); } Size new_size = new Size(pos->cx, pos->cy); if (Size != new_size) { bounds.Width = pos->cx; bounds.Height = pos->cy; Win32Rectangle rect; Functions.GetClientRect(handle, out rect); client_rectangle = rect.ToRectangle(); Functions.SetWindowPos(child_window.Handle, IntPtr.Zero, 0, 0, ClientRectangle.Width, ClientRectangle.Height, SetWindowPosFlags.NOZORDER | SetWindowPosFlags.NOOWNERZORDER | SetWindowPosFlags.NOACTIVATE | SetWindowPosFlags.NOSENDCHANGING); if (suppress_resize <= 0) { Resize(this, EventArgs.Empty); } } if (!is_in_modal_loop) { // If we are in a modal resize/move loop, cursor grabbing is // handled inside [ENTER|EXIT]SIZEMOVE case above. // If not, then we have to handle cursor grabbing here. if (!CursorVisible) { GrabCursor(); } } } } break; case WindowMessage.STYLECHANGED: unsafe { if (wParam.ToInt64() == (long)GWL.STYLE) { WindowStyle style = ((StyleStruct *)lParam)->New; if ((style & WindowStyle.Popup) != 0) { windowBorder = WindowBorder.Hidden; } else if ((style & WindowStyle.ThickFrame) != 0) { windowBorder = WindowBorder.Resizable; } else if ((style & ~(WindowStyle.ThickFrame | WindowStyle.MaximizeBox)) != 0) { windowBorder = WindowBorder.Fixed; } } } // Ensure cursor remains grabbed if (!CursorVisible) { GrabCursor(); } break; case WindowMessage.SIZE: SizeMessage state = (SizeMessage)wParam.ToInt64(); WindowState new_state = windowState; switch (state) { case SizeMessage.RESTORED: new_state = borderless_maximized_window_state ? WindowState.Maximized : WindowState.Normal; break; case SizeMessage.MINIMIZED: new_state = WindowState.Minimized; break; case SizeMessage.MAXIMIZED: new_state = WindowBorder == WindowBorder.Hidden ? WindowState.Fullscreen : WindowState.Maximized; break; } if (new_state != windowState) { windowState = new_state; WindowStateChanged(this, EventArgs.Empty); // Ensure cursor remains grabbed if (!CursorVisible) { GrabCursor(); } } break; #endregion #region Input events case WindowMessage.CHAR: if (IntPtr.Size == 4) { key_press.KeyChar = (char)wParam.ToInt32(); } else { key_press.KeyChar = (char)wParam.ToInt64(); } KeyPress(this, key_press); break; case WindowMessage.MOUSEMOVE: Point point = new Point( (short)((uint)lParam.ToInt32() & 0x0000FFFF), (short)(((uint)lParam.ToInt32() & 0xFFFF0000) >> 16)); mouse.Position = point; if (mouse_outside_window) { // Once we receive a mouse move event, it means that the mouse has // re-entered the window. mouse_outside_window = false; EnableMouseTracking(); MouseEnter(this, EventArgs.Empty); } break; case WindowMessage.MOUSELEAVE: mouse_outside_window = true; // Mouse tracking is disabled automatically by the OS MouseLeave(this, EventArgs.Empty); break; case WindowMessage.MOUSEWHEEL: // This is due to inconsistent behavior of the WParam value on 64bit arch, whese // wparam = 0xffffffffff880000 or wparam = 0x00000000ff100000 mouse.WheelPrecise += ((long)wParam << 32 >> 48) / 120.0f; break; case WindowMessage.LBUTTONDOWN: Functions.SetCapture(window.Handle); mouse[MouseButton.Left] = true; break; case WindowMessage.MBUTTONDOWN: Functions.SetCapture(window.Handle); mouse[MouseButton.Middle] = true; break; case WindowMessage.RBUTTONDOWN: Functions.SetCapture(window.Handle); mouse[MouseButton.Right] = true; break; case WindowMessage.XBUTTONDOWN: Functions.SetCapture(window.Handle); mouse[((wParam.ToInt32() & 0xFFFF0000) >> 16) != (int)MouseKeys.XButton1 ? MouseButton.Button1 : MouseButton.Button2] = true; break; case WindowMessage.LBUTTONUP: Functions.ReleaseCapture(); mouse[MouseButton.Left] = false; break; case WindowMessage.MBUTTONUP: Functions.ReleaseCapture(); mouse[MouseButton.Middle] = false; break; case WindowMessage.RBUTTONUP: Functions.ReleaseCapture(); mouse[MouseButton.Right] = false; break; case WindowMessage.XBUTTONUP: Functions.ReleaseCapture(); mouse[((wParam.ToInt32() & 0xFFFF0000) >> 16) != (int)MouseKeys.XButton1 ? MouseButton.Button1 : MouseButton.Button2] = false; break; // Keyboard events: case WindowMessage.KEYDOWN: case WindowMessage.KEYUP: case WindowMessage.SYSKEYDOWN: case WindowMessage.SYSKEYUP: bool pressed = message == WindowMessage.KEYDOWN || message == WindowMessage.SYSKEYDOWN; // Shift/Control/Alt behave strangely when e.g. ShiftRight is held down and ShiftLeft is pressed // and released. It looks like neither key is released in this case, or that the wrong key is // released in the case of Control and Alt. // To combat this, we are going to release both keys when either is released. Hacky, but should work. // Win95 does not distinguish left/right key constants (GetAsyncKeyState returns 0). // In this case, both keys will be reported as pressed. bool extended = (lParam.ToInt64() & ExtendedBit) != 0; short scancode = (short)((lParam.ToInt64() >> 16) & 0xFF); VirtualKeys vkey = (VirtualKeys)wParam; bool is_valid; Key key = KeyMap.TranslateKey(scancode, vkey, extended, false, out is_valid); if (is_valid) { keyboard.SetKey(key, (byte)scancode, pressed); } return(IntPtr.Zero); case WindowMessage.SYSCHAR: return(IntPtr.Zero); case WindowMessage.KILLFOCUS: keyboard.ClearKeys(); break; #endregion #region Creation / Destruction events case WindowMessage.CREATE: CreateStruct cs = (CreateStruct)Marshal.PtrToStructure(lParam, typeof(CreateStruct)); if (cs.hwndParent == IntPtr.Zero) { bounds.X = cs.x; bounds.Y = cs.y; bounds.Width = cs.cx; bounds.Height = cs.cy; Win32Rectangle rect; Functions.GetClientRect(handle, out rect); client_rectangle = rect.ToRectangle(); invisible_since_creation = true; } break; case WindowMessage.CLOSE: System.ComponentModel.CancelEventArgs e = new System.ComponentModel.CancelEventArgs(); Closing(this, e); if (!e.Cancel) { DestroyWindow(); break; } return(IntPtr.Zero); case WindowMessage.DESTROY: exists = false; Functions.UnregisterClass(ClassName, Instance); window.Dispose(); child_window.Dispose(); Closed(this, EventArgs.Empty); break; #endregion } return(Functions.DefWindowProc(handle, message, wParam, lParam)); }