New functions with QT GUI:

- fix c++ wrapper
- rename cvInformation in cvDisplayOverlay

modules/highgui/include/opencv2/highgui/highgui.hpp

@@ -68,6 +68,7 @@ CV_EXPORTS int startWindowThread();
 
 CV_EXPORTS void setWindowProperty(const string& winname, int prop_id, double prop_value);//YV
 CV_EXPORTS double getWindowProperty(const string& winname, int prop_id);//YV
+CV_EXPORTS void displayOverlay(const string& winname, const string& text, int delayms);
 
 CV_EXPORTS void imshow( const string& winname, const Mat& mat );
 

modules/highgui/include/opencv2/highgui/highgui_c.h

@@ -58,7 +58,7 @@ extern "C" {
 \****************************************************************************************/
 //YV
 //-----------New for QT
-CVAPI(void) cvInformation(const char* name, const char* text, int delayms);
+CVAPI(void) cvDisplayOverlay(const char* name, const char* text, int delayms);
 CVAPI(int) cvStartLoop(int (*pt2Func)(int argc, char *argv[]), int argc, char* argv[]);
 CVAPI(void) cvStopLoop();
 //----------------------

modules/highgui/src/window.cpp

@@ -125,24 +125,20 @@ void destroyWindow( const string& winname )
     cvDestroyWindow( winname.c_str() );
 }
 
-//YV
 void setWindowProperty(const string& winname, int prop_id, double prop_value)
 {
 	cvSetWindowProperty( winname.c_str(),prop_id,prop_value);
 }
 
-//YV
 double getWindowProperty(const string& winname, int prop_id)
 {
 	return  cvGetWindowProperty(winname.c_str(),prop_id);
 }
 
-/*
-void information(const string& name,  const string& text, int delayms)
+void displayOverlay(const string& name,  const string& text, int delayms)
 {
-	cvInformation(name.c_str(),text.c_str(), delayms);
+	cvDisplayOverlay(name.c_str(),text.c_str(), delayms);
 }
-* */
 
 void imshow( const string& winname, const Mat& img )
 {

modules/highgui/src/window_QT.cpp

@@ -96,7 +96,7 @@ double cvGetModeWindow_QT(const char* name)
     return result;
 }
 
-CV_IMPL void cvInformation(const char* name, const char* text, int delayms)
+CV_IMPL void cvDisplayOverlay(const char* name, const char* text, int delayms)
 {
 
     QMetaObject::invokeMethod(&guiMainThread,