diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b687d8f04..17f496d356 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -516,11 +516,14 @@ if (WITH_QT)
     find_package(Qt4)
     if (QT4_FOUND)
         set(HAVE_QT 1)
-        find_package (OpenGL QUIET)
-        if (QT_QTOPENGL_FOUND AND OPENGL_FOUND)
-			set(HAVE_QT_OPENGL 1)
-			add_definitions(-DHAVE_QT_OPENGL)
-        endif()
+        #add_definitions(-DHAVE_QT)
+        set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS "HAVE_QT")
+        
+        #find_package (OpenGL QUIET)
+        #if (QT_QTOPENGL_FOUND AND OPENGL_FOUND)
+		#	set(HAVE_QT_OPENGL 1)
+		#	add_definitions(-DHAVE_QT_OPENGL)
+        #endif()
     endif()
 endif()
         
diff --git a/modules/highgui/src/window.cpp b/modules/highgui/src/window.cpp
index 5c19c17387..ef9ddb91c9 100644
--- a/modules/highgui/src/window.cpp
+++ b/modules/highgui/src/window.cpp
@@ -368,61 +368,51 @@ CV_IMPL int cvStartWindowThread()
 CV_IMPL void cvAddText( const CvArr*, const char*, CvPoint org, CvFont font)
 {
     CV_NO_GUI_ERROR("cvAddText");
-    return -1;
 }
 
 CV_IMPL void cvDisplayStatusBar(const char* name, const char* arg2, int arg3)
 {
     CV_NO_GUI_ERROR("cvDisplayStatusBar");
-    return -1;
 }  
 
 CV_IMPL void cvDisplayStatusBar(const char* name, const char* arg2, int arg3)
 {
     CV_NO_GUI_ERROR("cvDisplayStatusBar");
-    return -1;
 }  
 
 CV_IMPL void cvCreateOpenGLCallback(const char* name, cvOpenGLCallback callback, void* param)
 {
     CV_NO_GUI_ERROR("createOpenGLCallback");
-    return -1;
 }  
 
 CV_IMPL void cvDisplayOverlay(const char* name, const char* text, int delayms)
 {
     CV_NO_GUI_ERROR("cvNamedWindow");
-    return -1;
 }  
 
 CV_IMPL void cvStartLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[])
 {
     CV_NO_GUI_ERROR("cvStartLoop");
-    return -1;
 }  
 
 CV_IMPL void cvStopLoop()
 {
     CV_NO_GUI_ERROR("cvStopLoop");
-    return -1;
 }  
 
 CV_IMPL void cvSaveWindowParameters(const char* name)
 {
     CV_NO_GUI_ERROR("cvSaveWindowParameters");
-    return -1;
 }  
 
 CV_IMPL void cvLoadWindowParameterss(const char* name)
 {
     CV_NO_GUI_ERROR("cvLoadWindowParameters");
-    return -1;
 }  
 
 CV_IMPL void cvCreateButton(const char* arg1, const char* arg2, cvButtonCallback on_change, const char* name, void* userdata)
 {
     CV_NO_GUI_ERROR("cvCreateButton");
-    return -1;
 }  
 
 
diff --git a/modules/highgui/src/window_QT.cpp b/modules/highgui/src/window_QT.cpp
index 29419a8b05..09872f9918 100755
--- a/modules/highgui/src/window_QT.cpp
+++ b/modules/highgui/src/window_QT.cpp
@@ -39,7 +39,7 @@
 //--------------------Google Code 2010 -- Yannick Verdie--------------------//
 
 
-#ifdef HAVE_QT
+#if defined(HAVE_QT)
 
 #include <window_QT.h>
 
@@ -266,7 +266,7 @@ CV_IMPL int cvWaitKey( int arg )
 				 */
 
 #if defined WIN32 || defined _WIN32 || defined WIN64 || defined _WIN64
-				sleep(2);
+				Sleep(2);
 #else
 				usleep(2);//to decrease CPU usage
 #endif
@@ -394,7 +394,7 @@ int icvInitSystem()
 		wasInitialized = 1;
 		qDebug()<<"init done";
 
-#if defined(HAVE_QT_OPENGL)//OK tested !
+#if defined( HAVE_QT_OPENGL )//OK tested !
 			qDebug()<<"opengl support available";
 #endif
 	}
@@ -1255,7 +1255,7 @@ CvWindow::CvWindow(QString arg, int arg2)
 
 	//2: my view
 	int mode_display = CV_MODE_NORMAL;
-#if defined(HAVE_QT_OPENGL)
+#if defined( HAVE_QT_OPENGL )
 	mode_display = CV_MODE_OPENGL;
 #endif
 	createView(mode_display);
@@ -1718,7 +1718,7 @@ ViewPort::ViewPort(CvWindow* arg, int arg2, int arg3)
 	on_openGL_draw3D = NULL;
 
 
-#if defined(HAVE_QT_OPENGL)
+#if defined( HAVE_QT_OPENGL )
 	if ( mode_display == CV_MODE_OPENGL)
 	{
 		//QGLWidget* wGL = new QGLWidget(QGLFormat(QGL::SampleBuffers));
@@ -1777,7 +1777,7 @@ void ViewPort::saveView()
 	{
 		QString extension = fileName.right(3);
 
-#if defined(HAVE_QT_OPENGL)
+#if defined( HAVE_QT_OPENGL )
 	 image2Draw_qt_resized = ((QGLWidget*)viewport())->grabFrameBuffer();
 #else
      QPainter saveimage(&image2Draw_qt_resized);
@@ -1928,6 +1928,7 @@ void ViewPort::setMouseCallBack(CvMouseCallback m, void* param)
 
 void ViewPort::setOpenGLCallback(CvOpenGLCallback func,void* userdata, double angle_arg, double zmin_arg, double zmax_arg)
 {
+#if defined( HAVE_QT_OPENGL )//all this section -> not tested
 	on_openGL_draw3D = func;
 	on_openGL_param = userdata;
 	
@@ -1947,7 +1948,7 @@ void ViewPort::setOpenGLCallback(CvOpenGLCallback func,void* userdata, double an
 		zmax = zmax_arg;
 	else
 		zmax = DEFAULT_ZMAX;
-	
+#endif
 }
 
 void ViewPort::controlImagePosition()
@@ -2219,7 +2220,7 @@ void ViewPort::paintEvent(QPaintEvent* event)
 
     draw2D(&myPainter);
 
-#if defined(HAVE_QT_OPENGL)
+#if defined( HAVE_QT_OPENGL )
     if ( mode_display == CV_MODE_OPENGL && on_openGL_draw3D)
     {
 	    myPainter.save(); // Needed when using the GL1 engine
@@ -2423,7 +2424,7 @@ void ViewPort::drawInstructions(QPainter *painter)
 
 
 
-#if defined(HAVE_QT_OPENGL)//all this section -> not tested
+#if defined( HAVE_QT_OPENGL )//all this section -> not tested
 
 void ViewPort::initGL()
 {
diff --git a/modules/highgui/src/window_QT.h b/modules/highgui/src/window_QT.h
index 6441421c4c..935e7f2796 100644
--- a/modules/highgui/src/window_QT.h
+++ b/modules/highgui/src/window_QT.h
@@ -43,9 +43,9 @@
 
 #include "precomp.hpp"
 
-#if defined(HAVE_QT_OPENGL)//OPENCV_GL)
- #include <QtOpenGL>
- #include <QGLWidget>
+#if defined( HAVE_QT_OPENGL )
+#include <QtOpenGL>
+#include <QGLWidget>
 #endif
 
 #include <QAbstractEventDispatcher>
@@ -411,7 +411,7 @@ private:
     void icvmouseHandler(QMouseEvent *event, type_mouse_event category, int &cv_event, int &flags);
     void icvmouseProcessing(QPointF pt, int cv_event, int flags);
 
-#if defined(HAVE_QT_OPENGL)
+#if defined( HAVE_QT_OPENGL )
 	double angle;
 	double zmin;
 	double zmax;