addButton        1132 modules/highgui/src/window_QT.cpp     b->addButton(button_name, (CvButtonCallback) on_change, userdata, button_type, initial_button_state);
addButton        1414 modules/highgui/src/window_QT.cpp         group_button->addButton(button);
addButton         141 modules/highgui/src/window_QT.h     void addButton(QString button_name, int button_type, int initial_button_state , void* on_change, void* userdata);
addButton         171 modules/highgui/src/window_QT.h     void addButton(QString button_name, CvButtonCallback call, void* userdata,  int button_type, int initial_button_state);