diff --git a/reactos/dll/3rdparty/mesa32/include/GL/mesa_wgl.h b/reactos/dll/3rdparty/mesa32/include/GL/mesa_wgl.h
index 7b26d91c765..9c93c5c600b 100644
--- a/reactos/dll/3rdparty/mesa32/include/GL/mesa_wgl.h
+++ b/reactos/dll/3rdparty/mesa32/include/GL/mesa_wgl.h
@@ -114,8 +114,8 @@ GLAPI const char * GLAPIENTRY wglGetExtensionsStringEXT (void);
 GLAPI BOOL GLAPIENTRY wglChoosePixelFormatARB (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
 GLAPI BOOL GLAPIENTRY wglSwapIntervalEXT (int interval);
 GLAPI int GLAPIENTRY wglGetSwapIntervalEXT (void);
-GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribivARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
-GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribfvARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
+GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribivARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, int *piValues);
+GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribfvARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, FLOAT *pfValues);
 GLAPI BOOL GLAPIENTRY wglMakeContextCurrentARB(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
 GLAPI HANDLE GLAPIENTRY wglGetCurrentReadDCARB(void);
 GLAPI HPBUFFERARB GLAPIENTRY wglCreatePbufferARB (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
diff --git a/reactos/dll/3rdparty/mesa32/src/drivers/windows/gdi/wgl.c b/reactos/dll/3rdparty/mesa32/src/drivers/windows/gdi/wgl.c
index 09fd05a5d77..eb9bb180751 100644
--- a/reactos/dll/3rdparty/mesa32/src/drivers/windows/gdi/wgl.c
+++ b/reactos/dll/3rdparty/mesa32/src/drivers/windows/gdi/wgl.c
@@ -771,16 +771,40 @@ wglGetSwapIntervalEXT (void)
 }
 
 /* WGL_ARB_pixel_format */
+#define WGL_NUMBER_PIXEL_FORMATS_ARB    0x2000
+#define WGL_SUPPORT_OPENGL_ARB          0x2010
+
 GLAPI BOOL GLAPIENTRY
 wglGetPixelFormatAttribivARB (HDC hdc,
                               int iPixelFormat,
                               int iLayerPlane,
                               UINT nAttributes,
-                              const int *piAttributes,
+                              int *piAttributes,
                               int *piValues)
 {
-   SetLastError(0);
-   return FALSE;
+    BOOL retVal = FALSE;
+    int i;
+
+    for (i=0;i<nAttributes;i++)
+    {
+        switch (piAttributes[i])
+        {
+            case WGL_NUMBER_PIXEL_FORMATS_ARB :
+                piValues[i] = (int)npfd;
+                retVal = TRUE;
+                break;
+
+            case WGL_SUPPORT_OPENGL_ARB:
+                piValues[i] = (int)TRUE;
+                retVal = TRUE;
+
+            default :
+                SetLastError(0);
+                break;
+        }
+    }
+
+   return retVal;
 }
 
 GLAPI BOOL GLAPIENTRY
@@ -788,11 +812,32 @@ wglGetPixelFormatAttribfvARB (HDC hdc,
                               int iPixelFormat,
                               int iLayerPlane,
                               UINT nAttributes,
-                              const int *piAttributes,
+                              int *piAttributes,
                               FLOAT *pfValues)
 {
-   SetLastError(0);
-   return FALSE;
+    BOOL retVal = FALSE;
+    int i;
+
+    for (i=0;i<nAttributes;i++)
+    {
+        switch (piAttributes[i])
+        {
+            case WGL_NUMBER_PIXEL_FORMATS_ARB :
+                pfValues[i] = (FLOAT)npfd;
+                retVal = TRUE;
+                break;
+
+            case WGL_SUPPORT_OPENGL_ARB:
+                pfValues[i] = (FLOAT)TRUE;
+                retVal = TRUE;
+
+            default :
+                SetLastError(0);
+                break;
+        }
+    }
+
+    return retVal;
 }
 
 GLAPI BOOL GLAPIENTRY
diff --git a/reactos/dll/3rdparty/mesa32/src/drivers/windows/icd/icd.c b/reactos/dll/3rdparty/mesa32/src/drivers/windows/icd/icd.c
index fbc3b4f0dea..4c26ba94e1f 100644
--- a/reactos/dll/3rdparty/mesa32/src/drivers/windows/icd/icd.c
+++ b/reactos/dll/3rdparty/mesa32/src/drivers/windows/icd/icd.c
@@ -55,8 +55,8 @@ GLAPI const char * GLAPIENTRY wglGetExtensionsStringEXT (void);
 GLAPI BOOL GLAPIENTRY wglChoosePixelFormatARB (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
 GLAPI BOOL GLAPIENTRY wglSwapIntervalEXT (int interval);
 GLAPI int GLAPIENTRY wglGetSwapIntervalEXT (void);
-GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribivARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
-GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribfvARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
+GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribivARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, int *piValues);
+GLAPI BOOL GLAPIENTRY wglGetPixelFormatAttribfvARB (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int *piAttributes, FLOAT *pfValues);
 GLAPI BOOL GLAPIENTRY wglMakeContextCurrentARB(HDC hDrawDC, HDC hReadDC, HGLRC hglrc);
 GLAPI HANDLE GLAPIENTRY wglGetCurrentReadDCARB(void);
 GLAPI HPBUFFERARB GLAPIENTRY wglCreatePbufferARB (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);