Dear openflipper, Last time, we raised Vol 29, Issue 5. According to your suggestion, we chagned code to : *int intObjectID = PluginFunctions::getObjectId(strPrameterizationObjectName); PluginFunctions::setDrawMode(ACG::SceneGraph::DrawModes::POINTS_SHADED, 1); emit updatedObject(intObjectID, UPDATE_COLOR );*/ Unfortunately, I found that it did not work. The color did not show up. Besides, we have a new problem with the code below. Compiling and running the following are fine. The problem is line 1 works fine, but line 2 give no message in the status bar. Line1: QMessageBox::information(NULL, "Scene Position", string, QMessageBox::Yes, QMessageBox::Yes); Line2: emit showStatusMessage(string, 100); Thank for your help! THANKS VERY MUCH FOR YOUR GREAT WORK!! Regards, ------------------------------ *Xianyong Liu Shanghai JiaoTong University* *Office: +86 021 34204586 Mobile: +86 18817559980 E-mail: **xyliu80@gmail.com* <xyliu80@gmail.com> *Address: 504 Room, SEIEE buiding 3#, 800 Dongchuan Rd,Min Hang,Shanghai,200240,China*