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. StartTimer(handle); break; case WindowMessage.EXITMENULOOP: case WindowMessage.EXITSIZEMOVE: // ExitingmModal size/move loop: the timer callback is no longer // necessary. StopTimer(handle); 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); } } // Ensure cursor remains grabbed 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[GET_XBUTTON_WPARAM(wParam.ToInt32())] = 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; uint scancode = (uint)((lParam.ToInt64() >> 16) & 0xFF); Key key = Key.Unknown; switch ((VirtualKeys)wParam) { case VirtualKeys.SHIFT: // The behavior of this key is very strange. Unlike Control and Alt, there is no extended bit // to distinguish between left and right keys. Moreover, pressing both keys and releasing one // may result in both keys being held down (but not always). // The only reliable way to solve this was reported by BlueMonkMN at the forums: we should // check the scancodes. It looks like GLFW does the same thing, so it should be reliable. // Note: we release both keys when either shift is released. // Otherwise, the state of one key might be stuck to pressed. if (ShiftRightScanCode != 0 && pressed) { if (scancode == ShiftRightScanCode) { key = Input.Key.ShiftRight; } else { key = Input.Key.ShiftLeft; } } else { // Windows 9x and NT4.0 or key release event. keyboard.SetKey(Input.Key.ShiftLeft, ShiftLeftScanCode, pressed); keyboard.SetKey(Input.Key.ShiftRight, ShiftRightScanCode, pressed); } break; case VirtualKeys.CONTROL: if (extended) { key = Input.Key.ControlRight; } else { key = Input.Key.ControlLeft; } break; case VirtualKeys.MENU: if (extended) { key = Input.Key.AltRight; } else { key = Input.Key.AltLeft; } break; case VirtualKeys.RETURN: if (extended) { key = Key.KeypadEnter; } else { key = Key.Enter; } break; default: if (!KeyMap.ContainsKey((VirtualKeys)wParam)) { Debug.Print("Virtual key {0} ({1}) not mapped.", (VirtualKeys)wParam, (long)lParam); } else { key = KeyMap[(VirtualKeys)wParam]; } break; } keyboard.SetKey(key, 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)); }
public bool ProcessMouseEvent(IntPtr raw_buffer) { bool processed = false; RawInput rin; if (Functions.GetRawInputData(raw_buffer, out rin) > 0) { RawMouse raw = rin.Data.Mouse; ContextHandle handle = new ContextHandle(rin.Header.Device); MouseState mouse; if (!rawids.ContainsKey(handle)) { RefreshDevices(); } if (mice.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 mouse_handle = rawids.ContainsKey(handle) ? rawids[handle] : 0; mouse = mice[mouse_handle]; // Set and release capture of the mouse to fix http://www.opentk.com/node/2133, Patch by Artfunkel if ((raw.ButtonFlags & RawInputMouseState.LEFT_BUTTON_DOWN) != 0) { mouse.EnableBit((int)MouseButton.Left); Functions.SetCapture(Window); } if ((raw.ButtonFlags & RawInputMouseState.LEFT_BUTTON_UP) != 0) { mouse.DisableBit((int)MouseButton.Left); Functions.ReleaseCapture(); } if ((raw.ButtonFlags & RawInputMouseState.RIGHT_BUTTON_DOWN) != 0) { mouse.EnableBit((int)MouseButton.Right); Functions.SetCapture(Window); } if ((raw.ButtonFlags & RawInputMouseState.RIGHT_BUTTON_UP) != 0) { mouse.DisableBit((int)MouseButton.Right); Functions.ReleaseCapture(); } if ((raw.ButtonFlags & RawInputMouseState.MIDDLE_BUTTON_DOWN) != 0) { mouse.EnableBit((int)MouseButton.Middle); Functions.SetCapture(Window); } if ((raw.ButtonFlags & RawInputMouseState.MIDDLE_BUTTON_UP) != 0) { mouse.DisableBit((int)MouseButton.Middle); Functions.ReleaseCapture(); } if ((raw.ButtonFlags & RawInputMouseState.BUTTON_4_DOWN) != 0) { mouse.EnableBit((int)MouseButton.Button1); Functions.SetCapture(Window); } if ((raw.ButtonFlags & RawInputMouseState.BUTTON_4_UP) != 0) { mouse.DisableBit((int)MouseButton.Button1); Functions.ReleaseCapture(); } if ((raw.ButtonFlags & RawInputMouseState.BUTTON_5_DOWN) != 0) { mouse.EnableBit((int)MouseButton.Button2); Functions.SetCapture(Window); } if ((raw.ButtonFlags & RawInputMouseState.BUTTON_5_UP) != 0) { mouse.DisableBit((int)MouseButton.Button2); Functions.ReleaseCapture(); } if ((raw.ButtonFlags & RawInputMouseState.WHEEL) != 0) { mouse.SetScrollRelative(0, (short)raw.ButtonData / 120.0f); } if ((raw.ButtonFlags & RawInputMouseState.HWHEEL) != 0) { mouse.SetScrollRelative((short)raw.ButtonData / 120.0f, 0); } if ((raw.Flags & RawMouseFlags.MOUSE_MOVE_ABSOLUTE) != 0) { mouse.X = raw.LastX; mouse.Y = raw.LastY; } else { // Seems like MOUSE_MOVE_RELATIVE is the default, unless otherwise noted. mouse.X += raw.LastX; mouse.Y += raw.LastY; } lock (UpdateLock) { mice[mouse_handle] = mouse; processed = true; } } return(processed); }
private unsafe IntPtr WindowProcedure(IntPtr handle, WindowMessage message, IntPtr wParam, IntPtr lParam) { switch (message) { case WindowMessage.MOUSEMOVE: this.mouse.Position = new Point((int)(short)(lParam.ToInt32() & (int)ushort.MaxValue), (int)(short)((uint)(lParam.ToInt32() & -65536) >> 16)); if (this.mouse_outside_window) { this.mouse_outside_window = false; this.EnableMouseTracking(); this.MouseEnter((object)this, EventArgs.Empty); break; } else { break; } case WindowMessage.LBUTTONDOWN: Functions.SetCapture(this.window.WindowHandle); this.mouse[MouseButton.Left] = true; break; case WindowMessage.LBUTTONUP: Functions.ReleaseCapture(); this.mouse[MouseButton.Left] = false; break; case WindowMessage.RBUTTONDOWN: Functions.SetCapture(this.window.WindowHandle); this.mouse[MouseButton.Right] = true; break; case WindowMessage.RBUTTONUP: Functions.ReleaseCapture(); this.mouse[MouseButton.Right] = false; break; case WindowMessage.MBUTTONDOWN: Functions.SetCapture(this.window.WindowHandle); this.mouse[MouseButton.Middle] = true; break; case WindowMessage.MBUTTONUP: Functions.ReleaseCapture(); this.mouse[MouseButton.Middle] = false; break; case WindowMessage.MOUSEWHEEL: this.mouse.WheelPrecise += (float)((long)wParam << 32 >> 48) / 120f; break; case WindowMessage.XBUTTONDOWN: Functions.SetCapture(this.window.WindowHandle); this.mouse[((long)wParam.ToInt32() & 4294901760L) >> 16 != 32L ? MouseButton.Button1 : MouseButton.Button2] = true; break; case WindowMessage.XBUTTONUP: Functions.ReleaseCapture(); this.mouse[((long)wParam.ToInt32() & 4294901760L) >> 16 != 32L ? MouseButton.Button1 : MouseButton.Button2] = false; break; case WindowMessage.ENTERMENULOOP: case WindowMessage.ENTERSIZEMOVE: this.StartTimer(handle); break; case WindowMessage.EXITMENULOOP: case WindowMessage.EXITSIZEMOVE: this.StopTimer(handle); break; case WindowMessage.MOUSELEAVE: this.mouse_outside_window = true; this.MouseLeave((object)this, EventArgs.Empty); break; case WindowMessage.STYLECHANGED: if (wParam.ToInt64() == -16L) { WindowStyle windowStyle = ((StyleStruct *)(void *)lParam)->New; if ((windowStyle & WindowStyle.Popup) != WindowStyle.Overlapped) { this.windowBorder = WindowBorder.Hidden; } else if ((windowStyle & WindowStyle.ThickFrame) != WindowStyle.Overlapped) { this.windowBorder = WindowBorder.Resizable; } else if ((windowStyle & ~(WindowStyle.ThickFrame | WindowStyle.TabStop)) != WindowStyle.Overlapped) { this.windowBorder = WindowBorder.Fixed; } } if (!this.CursorVisible) { this.GrabCursor(); break; } else { break; } case WindowMessage.KEYDOWN: case WindowMessage.KEYUP: case WindowMessage.SYSKEYDOWN: case WindowMessage.SYSKEYUP: bool flag1 = message == WindowMessage.KEYDOWN || message == WindowMessage.SYSKEYDOWN; bool flag2 = (lParam.ToInt64() & 16777216L) != 0L; switch ((short)(int)wParam) { case (short)13: if (flag2) { this.keyboard[Key.KeypadEnter] = flag1; } else { this.keyboard[Key.Enter] = flag1; } return(IntPtr.Zero); case (short)16: if ((int)WinGLNative.ShiftRightScanCode != 0 && flag1) { if ((lParam.ToInt64() >> 16 & (long)byte.MaxValue) == (long)WinGLNative.ShiftRightScanCode) { this.keyboard[Key.ShiftRight] = flag1; } else { this.keyboard[Key.ShiftLeft] = flag1; } } else { this.keyboard[Key.ShiftLeft] = this.keyboard[Key.ShiftRight] = flag1; } return(IntPtr.Zero); case (short)17: if (flag2) { this.keyboard[Key.ControlRight] = flag1; } else { this.keyboard[Key.ControlLeft] = flag1; } return(IntPtr.Zero); case (short)18: if (flag2) { this.keyboard[Key.AltRight] = flag1; } else { this.keyboard[Key.AltLeft] = flag1; } return(IntPtr.Zero); default: if (WinGLNative.KeyMap.ContainsKey((VirtualKeys)(int)wParam)) { this.keyboard[WinGLNative.KeyMap[(VirtualKeys)(int)wParam]] = flag1; return(IntPtr.Zero); } else { break; } } case WindowMessage.CHAR: this.key_press.KeyChar = IntPtr.Size != 4 ? (char)wParam.ToInt64() : (char)wParam.ToInt32(); this.KeyPress((object)this, this.key_press); break; case WindowMessage.SYSCHAR: return(IntPtr.Zero); case WindowMessage.ERASEBKGND: return(new IntPtr(1)); case WindowMessage.WINDOWPOSCHANGED: WindowPosition *windowPositionPtr = (WindowPosition *)(void *)lParam; if (this.window != null && windowPositionPtr->hwnd == this.window.WindowHandle) { Point point = new Point(windowPositionPtr->x, windowPositionPtr->y); if (this.Location != point) { this.bounds.Location = point; this.Move((object)this, EventArgs.Empty); } if (this.Size != new Size(windowPositionPtr->cx, windowPositionPtr->cy)) { this.bounds.Width = windowPositionPtr->cx; this.bounds.Height = windowPositionPtr->cy; Win32Rectangle clientRectangle; Functions.GetClientRect(handle, out clientRectangle); this.client_rectangle = clientRectangle.ToRectangle(); Functions.SetWindowPos(this.child_window.WindowHandle, IntPtr.Zero, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, SetWindowPosFlags.NOZORDER | SetWindowPosFlags.NOACTIVATE | SetWindowPosFlags.NOOWNERZORDER | SetWindowPosFlags.NOSENDCHANGING); if (this.suppress_resize <= 0) { this.Resize((object)this, EventArgs.Empty); } } if (!this.CursorVisible) { this.GrabCursor(); break; } else { break; } } else { break; } case WindowMessage.CREATE: CreateStruct createStruct = (CreateStruct)Marshal.PtrToStructure(lParam, typeof(CreateStruct)); if (createStruct.hwndParent == IntPtr.Zero) { this.bounds.X = createStruct.x; this.bounds.Y = createStruct.y; this.bounds.Width = createStruct.cx; this.bounds.Height = createStruct.cy; Win32Rectangle clientRectangle; Functions.GetClientRect(handle, out clientRectangle); this.client_rectangle = clientRectangle.ToRectangle(); this.invisible_since_creation = true; break; } else { break; } case WindowMessage.DESTROY: this.exists = false; int num = (int)Functions.UnregisterClass(this.ClassName, this.Instance); this.window.Dispose(); this.child_window.Dispose(); this.Closed((object)this, EventArgs.Empty); break; case WindowMessage.SIZE: SizeMessage sizeMessage = (SizeMessage)wParam.ToInt64(); WindowState windowState = this.windowState; switch (sizeMessage) { case SizeMessage.RESTORED: windowState = this.borderless_maximized_window_state ? WindowState.Maximized : WindowState.Normal; break; case SizeMessage.MINIMIZED: windowState = WindowState.Minimized; break; case SizeMessage.MAXIMIZED: windowState = this.WindowBorder == WindowBorder.Hidden ? WindowState.Fullscreen : WindowState.Maximized; break; } if (windowState != this.windowState) { this.windowState = windowState; this.WindowStateChanged((object)this, EventArgs.Empty); } if (!this.CursorVisible) { this.GrabCursor(); break; } else { break; } case WindowMessage.ACTIVATE: bool focused = this.Focused; this.focused = IntPtr.Size != 4 ? (wParam.ToInt64() & (long)ushort.MaxValue) != 0L : (wParam.ToInt32() & (int)ushort.MaxValue) != 0; if (focused != this.Focused) { this.FocusedChanged((object)this, EventArgs.Empty); break; } else { break; } case WindowMessage.KILLFOCUS: this.keyboard.ClearKeys(); break; case WindowMessage.CLOSE: CancelEventArgs e = new CancelEventArgs(); this.Closing((object)this, e); if (e.Cancel) { return(IntPtr.Zero); } this.DestroyWindow(); break; } return(Functions.DefWindowProc(handle, message, wParam, lParam)); }