cvDisplayOverlay 83 modules/highgui/include/opencv2/highgui/highgui_c.h CVAPI(void) cvDisplayOverlay(const char* name, const char* text, int delayms CV_DEFAULT(0)); cvDisplayOverlay 404 modules/highgui/src/window.cpp cvDisplayOverlay(name.c_str(),text.c_str(), delayms);