1 files changed, 23 insertions, 23 deletions

diff --git a/src/plugins/platforms/windows/qwindowsglcontext.cpp b/src/plugins/platforms/windows/qwindowsglcontext.cpp
index 21cb794196..e95eaef420 100644
--- a/src/plugins/platforms/windows/qwindowsglcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsglcontext.cpp
@@ -322,7 +322,7 @@ static inline bool
 
 static void describeFormats(HDC hdc)
 {
-    const int pfiMax = DescribePixelFormat(hdc, 0, 0, NULL);
+    const int pfiMax = DescribePixelFormat(hdc, 0, 0, nullptr);
     for (int i = 0; i < pfiMax; i++) {
         PIXELFORMATDESCRIPTOR pfd;
         initPixelFormatDescriptor(&pfd);
@@ -335,7 +335,7 @@ static void describeFormats(HDC hdc)
 namespace GDI {
 static QSurfaceFormat
     qSurfaceFormatFromPixelFormat(const PIXELFORMATDESCRIPTOR &pfd,
-                                         QWindowsOpenGLAdditionalFormat *additionalIn = 0)
+                                         QWindowsOpenGLAdditionalFormat *additionalIn = nullptr)
 {
     QSurfaceFormat format;
     format.setRenderableType(QSurfaceFormat::OpenGL);
@@ -437,7 +437,7 @@ static int choosePixelFormat(HDC hdc, const QSurfaceFormat &format,
             return pixelFormat;
     }
     // 2) No matching format found, manual search loop.
-    const int pfiMax = DescribePixelFormat(hdc, 0, 0, NULL);
+    const int pfiMax = DescribePixelFormat(hdc, 0, 0, nullptr);
     int bestScore = -1;
     int bestPfi = -1;
     const bool stereoRequested = format.stereo();
@@ -479,7 +479,7 @@ static inline HGLRC createContext(HDC hdc, HGLRC shared)
     HGLRC result = QOpenGLStaticContext::opengl32.wglCreateContext(hdc);
     if (!result) {
         qErrnoWarning("%s: wglCreateContext failed.", __FUNCTION__);
-        return 0;
+        return nullptr;
     }
     if (shared && !QOpenGLStaticContext::opengl32.wglShareLists(shared, result))
         qErrnoWarning("%s: wglShareLists() failed.", __FUNCTION__);
@@ -590,7 +590,7 @@ static int choosePixelFormat(HDC hdc,
     uint numFormats = 0;
     while (true) {
         const bool valid =
-            staticContext.wglChoosePixelFormatARB(hdc, iAttributes, 0, 1,
+            staticContext.wglChoosePixelFormatARB(hdc, iAttributes, nullptr, 1,
                                                &pixelFormat, &numFormats)
                 && numFormats >= 1;
         if (valid || (!sampleBuffersRequested && !srgbRequested))
@@ -646,7 +646,7 @@ static int choosePixelFormat(HDC hdc,
 static QSurfaceFormat
     qSurfaceFormatFromHDC(const QOpenGLStaticContext &staticContext,
                           HDC hdc, int pixelFormat,
-                          QWindowsOpenGLAdditionalFormat *additionalIn = 0)
+                          QWindowsOpenGLAdditionalFormat *additionalIn = nullptr)
 {
     enum { attribSize = 42 };
 
@@ -720,12 +720,12 @@ static HGLRC createContext(const QOpenGLStaticContext &staticContext,
                            HDC hdc,
                            const QSurfaceFormat &format,
                            const QWindowsOpenGLAdditionalFormat &,
-                           HGLRC shared = 0)
+                           HGLRC shared = nullptr)
 {
     enum { attribSize = 11 };
 
     if (!staticContext.hasExtensions())
-        return 0;
+        return nullptr;
     int attributes[attribSize];
     int attribIndex = 0;
     std::fill(attributes, attributes + attribSize, int(0));
@@ -797,14 +797,14 @@ static inline HWND createDummyGLWindow()
 {
     return QWindowsContext::instance()->
         createDummyWindow(QStringLiteral("QtOpenGLDummyWindow"),
-                          L"OpenGLDummyWindow", 0, WS_OVERLAPPED | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
+                          L"OpenGLDummyWindow", nullptr, WS_OVERLAPPED | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
 }
 
 // Create a dummy GL context (see QOpenGLTemporaryContext).
 static inline HGLRC createDummyGLContext(HDC dc)
 {
     if (!dc)
-        return 0;
+        return nullptr;
     PIXELFORMATDESCRIPTOR pixelFormDescriptor;
     initPixelFormatDescriptor(&pixelFormDescriptor);
     pixelFormDescriptor.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_GENERIC_FORMAT;
@@ -813,16 +813,16 @@ static inline HGLRC createDummyGLContext(HDC dc)
     const int pixelFormat = ChoosePixelFormat(dc, &pixelFormDescriptor);
     if (!pixelFormat) {
         qErrnoWarning("%s: ChoosePixelFormat failed.", __FUNCTION__);
-        return 0;
+        return nullptr;
     }
     if (!QOpenGLStaticContext::opengl32.setPixelFormat(dc, pixelFormat, &pixelFormDescriptor)) {
         qErrnoWarning("%s: SetPixelFormat failed.", __FUNCTION__);
-        return 0;
+        return nullptr;
     }
     HGLRC rc = QOpenGLStaticContext::opengl32.wglCreateContext(dc);
     if (!rc) {
         qErrnoWarning("%s: wglCreateContext failed.", __FUNCTION__);
-        return 0;
+        return nullptr;
     }
     return rc;
 }
@@ -1002,7 +1002,7 @@ QOpenGLStaticContext *QOpenGLStaticContext::create(bool softwareRendering)
 {
     if (!opengl32.init(softwareRendering)) {
         qWarning("Failed to load and resolve WGL/OpenGL functions");
-        return 0;
+        return nullptr;
     }
 
     // We need a current context for wglGetProcAdress()/getGLString() to work.
@@ -1033,12 +1033,12 @@ QWindowsGLContext::QWindowsGLContext(QOpenGLStaticContext *staticContext,
                                      QOpenGLContext *context) :
     m_staticContext(staticContext),
     m_context(context),
-    m_renderingContext(0),
+    m_renderingContext(nullptr),
     m_pixelFormat(0),
     m_extensionsUsed(false),
     m_swapInterval(-1),
     m_ownsContext(true),
-    m_getGraphicsResetStatus(0),
+    m_getGraphicsResetStatus(nullptr),
     m_lost(false)
 {
     if (!m_staticContext) // Something went very wrong. Stop here, isValid() will return false.
@@ -1081,7 +1081,7 @@ QWindowsGLContext::QWindowsGLContext(QOpenGLStaticContext *staticContext,
         if (ok)
             m_ownsContext = false;
         else
-            m_renderingContext = 0;
+            m_renderingContext = nullptr;
 
         return;
     }
@@ -1105,8 +1105,8 @@ QWindowsGLContext::QWindowsGLContext(QOpenGLStaticContext *staticContext,
     // Create a dummy one as we are not associated with a window yet.
     // Try to find a suitable pixel format using preferably ARB extensions
     // (default to GDI) and store that.
-    HWND dummyWindow = 0;
-    HDC hdc = 0;
+    HWND dummyWindow = nullptr;
+    HDC hdc = nullptr;
     bool tryExtensions = false;
     int obtainedSwapInterval = -1;
     do {
@@ -1163,7 +1163,7 @@ QWindowsGLContext::QWindowsGLContext(QOpenGLStaticContext *staticContext,
             break;
         }
         // Create context with sharing, again preferably using ARB.
-        HGLRC sharingRenderingContext = 0;
+        HGLRC sharingRenderingContext = nullptr;
         if (const QPlatformOpenGLContext *sc = context->shareHandle())
             sharingRenderingContext = static_cast<const QWindowsGLContext *>(sc)->renderingContext();
 
@@ -1190,7 +1190,7 @@ QWindowsGLContext::QWindowsGLContext(QOpenGLStaticContext *staticContext,
     // Make the HGLRC retrievable via QOpenGLContext::nativeHandle().
     // Do not provide the window since it is the dummy one and it is about to disappear.
     if (m_renderingContext)
-        context->setNativeHandle(QVariant::fromValue<QWGLNativeContext>(QWGLNativeContext(m_renderingContext, 0)));
+        context->setNativeHandle(QVariant::fromValue<QWGLNativeContext>(QWGLNativeContext(m_renderingContext, nullptr)));
 
     if (hdc)
         ReleaseDC(dummyWindow, hdc);
@@ -1281,7 +1281,7 @@ static inline const QOpenGLContextData *
         if (e.hwnd == hwnd)
             return &e;
     }
-    return 0;
+    return nullptr;
 }
 
 void QWindowsGLContext::swapBuffers(QPlatformSurface *surface)
@@ -1365,7 +1365,7 @@ void QWindowsGLContext::doneCurrent()
     if (QWindowsContext::verbose > 1)
         qCDebug(lcQpaGl) << __FUNCTION__ << this << m_windowContexts.size() << "contexts";
 #endif // DEBUG_GL
-    QOpenGLStaticContext::opengl32.wglMakeCurrent(0, 0);
+    QOpenGLStaticContext::opengl32.wglMakeCurrent(nullptr, nullptr);
     releaseDCs();
 }