kc3-lang/angle/util/windows/win32/Win32Window.cpp

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• Hash : 7d6aa630
  Author :
  Date : 2025-08-13T15:50:24
  

  Reland: Rename enums to fix GCC -Wchanges-meaning error
  
  This is a reland of commit dc24ecca9ed920c0269e9d62dfcac4b3f3e5a4d4
  
  Original change's description:
  > Renamed enums Key and MouseButton to enum class KeyType and
  > MouseButtonType to avoid name conflicts with union members in
  > Event.h on GCC, and to follow the ANGLE style guide preference
  > for scoped enums.
  >
  > BUG: angleproject:438226513
  > Change-Id: I8892b438b3b05a3ce4e14f8c0769b81722688da8
  > Signed-off-by: Sungyong Choi <sywow.choi@samsung.com>
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6845484
  > Commit-Queue: Geoff Lang <geofflang@chromium.org>
  > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  > Reviewed-by: Geoff Lang <geofflang@chromium.org>
  
  BUG: angleproject:438226513
  Change-Id: Ifc1a7bad661881a1a71bd5380fe431270bc68686
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6874206
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• util/windows/win32/Win32Window.cpp

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // Win32Window.cpp: Implementation of OSWindow for Win32 (Windows)
  
  #include "util/windows/win32/Win32Window.h"
  
  #include <crtdbg.h>
  #include <sstream>
  
  #include "common/debug.h"
  
  angle::KeyType VirtualKeyCodeToKey(WPARAM key, LPARAM flags)
  {
      switch (key)
      {
          // Check the scancode to distinguish between left and right shift
          case VK_SHIFT:
          {
              static unsigned int lShift = MapVirtualKey(VK_LSHIFT, MAPVK_VK_TO_VSC);
              unsigned int scancode      = static_cast<unsigned int>((flags & (0xFF << 16)) >> 16);
              return scancode == lShift ? angle::KeyType::LSHIFT : angle::KeyType::RSHIFT;
          }
  
          // Check the "extended" flag to distinguish between left and right alt
          case VK_MENU:
              return (HIWORD(flags) & KF_EXTENDED) ? angle::KeyType::RALT : angle::KeyType::LALT;
  
          // Check the "extended" flag to distinguish between left and right control
          case VK_CONTROL:
              return (HIWORD(flags) & KF_EXTENDED) ? angle::KeyType::RCONTROL
                                                   : angle::KeyType::LCONTROL;
  
          // Other keys are reported properly
          case VK_LWIN:
              return angle::KeyType::LSYSTEM;
          case VK_RWIN:
              return angle::KeyType::RSYSTEM;
          case VK_APPS:
              return angle::KeyType::MENU;
          case VK_OEM_1:
              return angle::KeyType::SEMICOLON;
          case VK_OEM_2:
              return angle::KeyType::SLASH;
          case VK_OEM_PLUS:
              return angle::KeyType::EQUAL;
          case VK_OEM_MINUS:
              return angle::KeyType::DASH;
          case VK_OEM_4:
              return angle::KeyType::LBRACKET;
          case VK_OEM_6:
              return angle::KeyType::RBRACKET;
          case VK_OEM_COMMA:
              return angle::KeyType::COMMA;
          case VK_OEM_PERIOD:
              return angle::KeyType::PERIOD;
          case VK_OEM_7:
              return angle::KeyType::QUOTE;
          case VK_OEM_5:
              return angle::KeyType::BACKSLASH;
          case VK_OEM_3:
              return angle::KeyType::TILDE;
          case VK_ESCAPE:
              return angle::KeyType::ESCAPE;
          case VK_SPACE:
              return angle::KeyType::SPACE;
          case VK_RETURN:
              return angle::KeyType::RETURN;
          case VK_BACK:
              return angle::KeyType::BACK;
          case VK_TAB:
              return angle::KeyType::TAB;
          case VK_PRIOR:
              return angle::KeyType::PAGEUP;
          case VK_NEXT:
              return angle::KeyType::PAGEDOWN;
          case VK_END:
              return angle::KeyType::END;
          case VK_HOME:
              return angle::KeyType::HOME;
          case VK_INSERT:
              return angle::KeyType::INSERT;
          case VK_DELETE:
              return angle::KeyType::DEL;
          case VK_ADD:
              return angle::KeyType::ADD;
          case VK_SUBTRACT:
              return angle::KeyType::SUBTRACT;
          case VK_MULTIPLY:
              return angle::KeyType::MULTIPLY;
          case VK_DIVIDE:
              return angle::KeyType::DIVIDE;
          case VK_PAUSE:
              return angle::KeyType::PAUSE;
          case VK_F1:
              return angle::KeyType::F1;
          case VK_F2:
              return angle::KeyType::F2;
          case VK_F3:
              return angle::KeyType::F3;
          case VK_F4:
              return angle::KeyType::F4;
          case VK_F5:
              return angle::KeyType::F5;
          case VK_F6:
              return angle::KeyType::F6;
          case VK_F7:
              return angle::KeyType::F7;
          case VK_F8:
              return angle::KeyType::F8;
          case VK_F9:
              return angle::KeyType::F9;
          case VK_F10:
              return angle::KeyType::F10;
          case VK_F11:
              return angle::KeyType::F11;
          case VK_F12:
              return angle::KeyType::F12;
          case VK_F13:
              return angle::KeyType::F13;
          case VK_F14:
              return angle::KeyType::F14;
          case VK_F15:
              return angle::KeyType::F15;
          case VK_LEFT:
              return angle::KeyType::LEFT;
          case VK_RIGHT:
              return angle::KeyType::RIGHT;
          case VK_UP:
              return angle::KeyType::UP;
          case VK_DOWN:
              return angle::KeyType::DOWN;
          case VK_NUMPAD0:
              return angle::KeyType::NUMPAD0;
          case VK_NUMPAD1:
              return angle::KeyType::NUMPAD1;
          case VK_NUMPAD2:
              return angle::KeyType::NUMPAD2;
          case VK_NUMPAD3:
              return angle::KeyType::NUMPAD3;
          case VK_NUMPAD4:
              return angle::KeyType::NUMPAD4;
          case VK_NUMPAD5:
              return angle::KeyType::NUMPAD5;
          case VK_NUMPAD6:
              return angle::KeyType::NUMPAD6;
          case VK_NUMPAD7:
              return angle::KeyType::NUMPAD7;
          case VK_NUMPAD8:
              return angle::KeyType::NUMPAD8;
          case VK_NUMPAD9:
              return angle::KeyType::NUMPAD9;
          case 'A':
              return angle::KeyType::A;
          case 'Z':
              return angle::KeyType::Z;
          case 'E':
              return angle::KeyType::E;
          case 'R':
              return angle::KeyType::R;
          case 'T':
              return angle::KeyType::T;
          case 'Y':
              return angle::KeyType::Y;
          case 'U':
              return angle::KeyType::U;
          case 'I':
              return angle::KeyType::I;
          case 'O':
              return angle::KeyType::O;
          case 'P':
              return angle::KeyType::P;
          case 'Q':
              return angle::KeyType::Q;
          case 'S':
              return angle::KeyType::S;
          case 'D':
              return angle::KeyType::D;
          case 'F':
              return angle::KeyType::F;
          case 'G':
              return angle::KeyType::G;
          case 'H':
              return angle::KeyType::H;
          case 'J':
              return angle::KeyType::J;
          case 'K':
              return angle::KeyType::K;
          case 'L':
              return angle::KeyType::L;
          case 'M':
              return angle::KeyType::M;
          case 'W':
              return angle::KeyType::W;
          case 'X':
              return angle::KeyType::X;
          case 'C':
              return angle::KeyType::C;
          case 'V':
              return angle::KeyType::V;
          case 'B':
              return angle::KeyType::B;
          case 'N':
              return angle::KeyType::N;
          case '0':
              return angle::KeyType::NUM0;
          case '1':
              return angle::KeyType::NUM1;
          case '2':
              return angle::KeyType::NUM2;
          case '3':
              return angle::KeyType::NUM3;
          case '4':
              return angle::KeyType::NUM4;
          case '5':
              return angle::KeyType::NUM5;
          case '6':
              return angle::KeyType::NUM6;
          case '7':
              return angle::KeyType::NUM7;
          case '8':
              return angle::KeyType::NUM8;
          case '9':
              return angle::KeyType::NUM9;
      }
  
      return angle::KeyType(0);
  }
  
  LRESULT CALLBACK Win32Window::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
  {
      switch (message)
      {
          case WM_NCCREATE:
          {
              LPCREATESTRUCT pCreateStruct = reinterpret_cast<LPCREATESTRUCT>(lParam);
              SetWindowLongPtr(hWnd, GWLP_USERDATA,
                               reinterpret_cast<LONG_PTR>(pCreateStruct->lpCreateParams));
              return DefWindowProcA(hWnd, message, wParam, lParam);
          }
      }
  
      Win32Window *window = reinterpret_cast<Win32Window *>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
      if (window)
      {
          switch (message)
          {
              case WM_DESTROY:
              case WM_CLOSE:
              {
                  Event event;
                  event.Type = Event::EVENT_CLOSED;
                  window->pushEvent(event);
                  break;
              }
  
              case WM_MOVE:
              {
                  RECT winRect;
                  GetClientRect(hWnd, &winRect);
  
                  POINT topLeft;
                  topLeft.x = winRect.left;
                  topLeft.y = winRect.top;
                  ClientToScreen(hWnd, &topLeft);
  
                  Event event;
                  event.Type   = Event::EVENT_MOVED;
                  event.Move.X = topLeft.x;
                  event.Move.Y = topLeft.y;
                  window->pushEvent(event);
  
                  break;
              }
  
              case WM_SIZE:
              {
                  if (window->mIgnoreSizeEvents)
                      break;
  
                  RECT winRect;
                  GetClientRect(hWnd, &winRect);
  
                  POINT topLeft;
                  topLeft.x = winRect.left;
                  topLeft.y = winRect.top;
                  ClientToScreen(hWnd, &topLeft);
  
                  POINT botRight;
                  botRight.x = winRect.right;
                  botRight.y = winRect.bottom;
                  ClientToScreen(hWnd, &botRight);
  
                  Event event;
                  event.Type        = Event::EVENT_RESIZED;
                  event.Size.Width  = botRight.x - topLeft.x;
                  event.Size.Height = botRight.y - topLeft.y;
                  window->pushEvent(event);
  
                  break;
              }
  
              case WM_SETFOCUS:
              {
                  Event event;
                  event.Type = Event::EVENT_GAINED_FOCUS;
                  window->pushEvent(event);
                  break;
              }
  
              case WM_KILLFOCUS:
              {
                  Event event;
                  event.Type = Event::EVENT_LOST_FOCUS;
                  window->pushEvent(event);
                  break;
              }
  
              case WM_KEYDOWN:
              case WM_SYSKEYDOWN:
              case WM_KEYUP:
              case WM_SYSKEYUP:
              {
                  bool down = (message == WM_KEYDOWN || message == WM_SYSKEYDOWN);
  
                  Event event;
                  event.Type        = down ? Event::EVENT_KEY_PRESSED : Event::EVENT_KEY_RELEASED;
                  event.Key.Alt     = HIWORD(GetAsyncKeyState(VK_MENU)) != 0;
                  event.Key.Control = HIWORD(GetAsyncKeyState(VK_CONTROL)) != 0;
                  event.Key.Shift   = HIWORD(GetAsyncKeyState(VK_SHIFT)) != 0;
                  event.Key.System =
                      HIWORD(GetAsyncKeyState(VK_LWIN)) || HIWORD(GetAsyncKeyState(VK_RWIN));
                  event.Key.Code = VirtualKeyCodeToKey(wParam, lParam);
                  window->pushEvent(event);
  
                  break;
              }
  
              case WM_MOUSEWHEEL:
              {
                  Event event;
                  event.Type             = Event::EVENT_MOUSE_WHEEL_MOVED;
                  event.MouseWheel.Delta = static_cast<short>(HIWORD(wParam)) / 120;
                  window->pushEvent(event);
                  break;
              }
  
              case WM_LBUTTONDOWN:
              case WM_LBUTTONDBLCLK:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_PRESSED;
                  event.MouseButton.Button = angle::MouseButtonType::LEFT;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              case WM_LBUTTONUP:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_RELEASED;
                  event.MouseButton.Button = angle::MouseButtonType::LEFT;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              case WM_RBUTTONDOWN:
              case WM_RBUTTONDBLCLK:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_PRESSED;
                  event.MouseButton.Button = angle::MouseButtonType::RIGHT;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              // Mouse right button up event
              case WM_RBUTTONUP:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_RELEASED;
                  event.MouseButton.Button = angle::MouseButtonType::RIGHT;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              // Mouse wheel button down event
              case WM_MBUTTONDOWN:
              case WM_MBUTTONDBLCLK:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_PRESSED;
                  event.MouseButton.Button = angle::MouseButtonType::MIDDLE;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              // Mouse wheel button up event
              case WM_MBUTTONUP:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_RELEASED;
                  event.MouseButton.Button = angle::MouseButtonType::MIDDLE;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              // Mouse X button down event
              case WM_XBUTTONDOWN:
              case WM_XBUTTONDBLCLK:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_PRESSED;
                  event.MouseButton.Button = (HIWORD(wParam) == XBUTTON1)
                                                 ? angle::MouseButtonType::BUTTON4
                                                 : angle::MouseButtonType::BUTTON5;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              // Mouse X button up event
              case WM_XBUTTONUP:
              {
                  Event event;
                  event.Type               = Event::EVENT_MOUSE_BUTTON_RELEASED;
                  event.MouseButton.Button = (HIWORD(wParam) == XBUTTON1)
                                                 ? angle::MouseButtonType::BUTTON4
                                                 : angle::MouseButtonType::BUTTON5;
                  event.MouseButton.X      = static_cast<short>(LOWORD(lParam));
                  event.MouseButton.Y      = static_cast<short>(HIWORD(lParam));
                  window->pushEvent(event);
                  break;
              }
  
              case WM_MOUSEMOVE:
              {
                  if (!window->mIsMouseInWindow)
                  {
                      window->mIsMouseInWindow = true;
                      Event event;
                      event.Type = Event::EVENT_MOUSE_ENTERED;
                      window->pushEvent(event);
                  }
  
                  int mouseX = static_cast<short>(LOWORD(lParam));
                  int mouseY = static_cast<short>(HIWORD(lParam));
  
                  Event event;
                  event.Type        = Event::EVENT_MOUSE_MOVED;
                  event.MouseMove.X = mouseX;
                  event.MouseMove.Y = mouseY;
                  window->pushEvent(event);
                  break;
              }
  
              case WM_MOUSELEAVE:
              {
                  Event event;
                  event.Type = Event::EVENT_MOUSE_LEFT;
                  window->pushEvent(event);
                  window->mIsMouseInWindow = false;
                  break;
              }
  
              case WM_USER:
              {
                  Event testEvent;
                  testEvent.Type = Event::EVENT_TEST;
                  window->pushEvent(testEvent);
                  break;
              }
          }
      }
      return DefWindowProcA(hWnd, message, wParam, lParam);
  }
  
  Win32Window::Win32Window()
      : mIsVisible(false),
        mIsMouseInWindow(false),
        mNativeWindow(0),
        mParentWindow(0),
        mNativeDisplay(0)
  {}
  
  Win32Window::~Win32Window()
  {
      destroy();
  }
  
  bool Win32Window::initializeImpl(const std::string &name, int width, int height)
  {
      destroy();
  
      // Use a new window class name for ever window to ensure that a new window can be created
      // even if the last one was not properly destroyed
      static size_t windowIdx = 0;
      std::ostringstream nameStream;
      nameStream << name << "_" << windowIdx++;
  
      mParentClassName = nameStream.str();
      mChildClassName  = mParentClassName + "_Child";
  
      // Work around compile error from not defining "UNICODE" while Chromium does
      const LPSTR idcArrow = MAKEINTRESOURCEA(32512);
  
      WNDCLASSEXA parentWindowClass   = {};
      parentWindowClass.cbSize        = sizeof(WNDCLASSEXA);
      parentWindowClass.style         = 0;
      parentWindowClass.lpfnWndProc   = WndProc;
      parentWindowClass.cbClsExtra    = 0;
      parentWindowClass.cbWndExtra    = 0;
      parentWindowClass.hInstance     = GetModuleHandle(nullptr);
      parentWindowClass.hIcon         = nullptr;
      parentWindowClass.hCursor       = LoadCursorA(nullptr, idcArrow);
      parentWindowClass.hbrBackground = 0;
      parentWindowClass.lpszMenuName  = nullptr;
      parentWindowClass.lpszClassName = mParentClassName.c_str();
      if (!RegisterClassExA(&parentWindowClass))
      {
          return false;
      }
  
      WNDCLASSEXA childWindowClass   = {};
      childWindowClass.cbSize        = sizeof(WNDCLASSEXA);
      childWindowClass.style         = CS_OWNDC;
      childWindowClass.lpfnWndProc   = WndProc;
      childWindowClass.cbClsExtra    = 0;
      childWindowClass.cbWndExtra    = 0;
      childWindowClass.hInstance     = GetModuleHandle(nullptr);
      childWindowClass.hIcon         = nullptr;
      childWindowClass.hCursor       = LoadCursorA(nullptr, idcArrow);
      childWindowClass.hbrBackground = 0;
      childWindowClass.lpszMenuName  = nullptr;
      childWindowClass.lpszClassName = mChildClassName.c_str();
      if (!RegisterClassExA(&childWindowClass))
      {
          return false;
      }
  
      DWORD parentStyle = WS_CAPTION | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_SYSMENU;
      DWORD parentExtendedStyle = WS_EX_APPWINDOW | WS_EX_TOOLWINDOW;
  
      RECT sizeRect = {0, 0, static_cast<LONG>(width), static_cast<LONG>(height)};
      AdjustWindowRectEx(&sizeRect, parentStyle, FALSE, parentExtendedStyle);
  
      mParentWindow = CreateWindowExA(parentExtendedStyle, mParentClassName.c_str(), name.c_str(),
                                      parentStyle, CW_USEDEFAULT, CW_USEDEFAULT,
                                      sizeRect.right - sizeRect.left, sizeRect.bottom - sizeRect.top,
                                      nullptr, nullptr, GetModuleHandle(nullptr), this);
  
      mNativeWindow = CreateWindowExA(0, mChildClassName.c_str(), name.c_str(), WS_CHILD, 0, 0,
                                      static_cast<int>(width), static_cast<int>(height),
                                      mParentWindow, nullptr, GetModuleHandle(nullptr), this);
  
      mNativeDisplay = GetDC(mNativeWindow);
      if (!mNativeDisplay)
      {
          destroy();
          return false;
      }
  
      return true;
  }
  
  void Win32Window::disableErrorMessageDialog()
  {
      _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
      _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG);
  }
  
  void Win32Window::destroy()
  {
      if (mNativeDisplay)
      {
          ReleaseDC(mNativeWindow, mNativeDisplay);
          mNativeDisplay = 0;
      }
  
      if (mNativeWindow)
      {
          DestroyWindow(mNativeWindow);
          mNativeWindow = 0;
      }
  
      if (mParentWindow)
      {
          DestroyWindow(mParentWindow);
          mParentWindow = 0;
      }
  
      UnregisterClassA(mParentClassName.c_str(), nullptr);
      UnregisterClassA(mChildClassName.c_str(), nullptr);
  }
  
  bool Win32Window::takeScreenshot(uint8_t *pixelData)
  {
      if (mIsVisible)
      {
          return false;
      }
  
      bool error = false;
  
      // Hack for DWM: There is no way to wait for DWM animations to finish, so we just have to wait
      // for a while before issuing screenshot if window was just made visible.
      {
          static const double WAIT_WINDOW_VISIBLE_MS = 0.5;  // Half a second for the animation
          double timeSinceVisible                    = mSetVisibleTimer.getElapsedWallClockTime();
  
          if (timeSinceVisible < WAIT_WINDOW_VISIBLE_MS)
          {
              Sleep(static_cast<DWORD>((WAIT_WINDOW_VISIBLE_MS - timeSinceVisible) * 1000));
          }
      }
  
      HDC screenDC      = nullptr;
      HDC windowDC      = nullptr;
      HDC tmpDC         = nullptr;
      HBITMAP tmpBitmap = nullptr;
  
      if (!error)
      {
          screenDC = GetDC(HWND_DESKTOP);
          error    = screenDC == nullptr;
      }
  
      if (!error)
      {
          windowDC = GetDC(mNativeWindow);
          error    = windowDC == nullptr;
      }
  
      if (!error)
      {
          tmpDC = CreateCompatibleDC(screenDC);
          error = tmpDC == nullptr;
      }
  
      if (!error)
      {
          tmpBitmap = CreateCompatibleBitmap(screenDC, mWidth, mHeight);
          error     = tmpBitmap == nullptr;
      }
  
      POINT topLeft = {0, 0};
      if (!error)
      {
          error = (MapWindowPoints(mNativeWindow, HWND_DESKTOP, &topLeft, 1) == 0);
      }
  
      if (!error)
      {
          error = SelectObject(tmpDC, tmpBitmap) == nullptr;
      }
  
      if (!error)
      {
          error = BitBlt(tmpDC, 0, 0, mWidth, mHeight, screenDC, topLeft.x, topLeft.y, SRCCOPY) == 0;
      }
  
      if (!error)
      {
          BITMAPINFOHEADER bitmapInfo;
          bitmapInfo.biSize          = sizeof(BITMAPINFOHEADER);
          bitmapInfo.biWidth         = mWidth;
          bitmapInfo.biHeight        = -mHeight;
          bitmapInfo.biPlanes        = 1;
          bitmapInfo.biBitCount      = 32;
          bitmapInfo.biCompression   = BI_RGB;
          bitmapInfo.biSizeImage     = 0;
          bitmapInfo.biXPelsPerMeter = 0;
          bitmapInfo.biYPelsPerMeter = 0;
          bitmapInfo.biClrUsed       = 0;
          bitmapInfo.biClrImportant  = 0;
          int getBitsResult          = GetDIBits(screenDC, tmpBitmap, 0, mHeight, pixelData,
                                        reinterpret_cast<BITMAPINFO *>(&bitmapInfo), DIB_RGB_COLORS);
          error                      = (getBitsResult == 0);
      }
  
      if (tmpBitmap != nullptr)
      {
          DeleteObject(tmpBitmap);
      }
      if (tmpDC != nullptr)
      {
          DeleteDC(tmpDC);
      }
      if (screenDC != nullptr)
      {
          ReleaseDC(nullptr, screenDC);
      }
      if (windowDC != nullptr)
      {
          ReleaseDC(mNativeWindow, windowDC);
      }
  
      return !error;
  }
  
  void Win32Window::resetNativeWindow() {}
  
  EGLNativeWindowType Win32Window::getNativeWindow() const
  {
      return mNativeWindow;
  }
  
  EGLNativeDisplayType Win32Window::getNativeDisplay() const
  {
      return mNativeDisplay;
  }
  
  void Win32Window::messageLoop()
  {
      MSG msg;
      while (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
      {
          TranslateMessage(&msg);
          DispatchMessage(&msg);
      }
  }
  
  void Win32Window::setMousePosition(int x, int y)
  {
      RECT winRect;
      GetClientRect(mNativeWindow, &winRect);
  
      POINT topLeft;
      topLeft.x = winRect.left;
      topLeft.y = winRect.top;
      ClientToScreen(mNativeWindow, &topLeft);
  
      SetCursorPos(topLeft.x + x, topLeft.y + y);
  }
  
  bool Win32Window::setOrientation(int width, int height)
  {
      UNIMPLEMENTED();
      return false;
  }
  
  bool Win32Window::setPosition(int x, int y)
  {
      if (mX == x && mY == y)
      {
          return true;
      }
  
      RECT windowRect;
      if (!GetWindowRect(mParentWindow, &windowRect))
      {
          return false;
      }
  
      if (!MoveWindow(mParentWindow, x, y, windowRect.right - windowRect.left,
                      windowRect.bottom - windowRect.top, TRUE))
      {
          return false;
      }
  
      return true;
  }
  
  bool Win32Window::resize(int width, int height)
  {
      if (width == mWidth && height == mHeight)
      {
          return true;
      }
  
      RECT windowRect;
      if (!GetWindowRect(mParentWindow, &windowRect))
      {
          return false;
      }
  
      RECT clientRect;
      if (!GetClientRect(mParentWindow, &clientRect))
      {
          return false;
      }
  
      LONG diffX = (windowRect.right - windowRect.left) - clientRect.right;
      LONG diffY = (windowRect.bottom - windowRect.top) - clientRect.bottom;
      if (!MoveWindow(mParentWindow, windowRect.left, windowRect.top, width + diffX, height + diffY,
                      TRUE))
      {
          return false;
      }
  
      if (!MoveWindow(mNativeWindow, 0, 0, width, height, FALSE))
      {
          return false;
      }
  
      return true;
  }
  
  void Win32Window::setVisible(bool isVisible)
  {
      int flag = (isVisible ? SW_SHOW : SW_HIDE);
  
      ShowWindow(mParentWindow, flag);
      ShowWindow(mNativeWindow, flag);
  
      if (isVisible)
      {
          mSetVisibleTimer.stop();
          mSetVisibleTimer.start();
      }
  }
  
  void Win32Window::pushEvent(Event event)
  {
      OSWindow::pushEvent(event);
  
      switch (event.Type)
      {
          case Event::EVENT_RESIZED:
              MoveWindow(mNativeWindow, 0, 0, mWidth, mHeight, FALSE);
              break;
          default:
              break;
      }
  }
  
  void Win32Window::signalTestEvent()
  {
      PostMessage(mNativeWindow, WM_USER, 0, 0);
  }
  
  // static
  OSWindow *OSWindow::New()
  {
      return new Win32Window();
  }
  

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