@JackMyson said in Developing QScintilla based application then crashes: BrStormTextMainWindow::handleTabChanged(int) I guess this is something you implemented? What are you doing there? According to the stack trace a tab is removed (QTabBar::removeTab(int)) and then BrStormTextMainWindow::handleTabChanged(int) is called - I guess you are trying to access something already deleted.

If someone is wondering how it's done, it's this easy: print(self.wordAtLineIndex(self.getCursorPosition()[0], self.getCursorPosition()[1]))

Hi Creator has a plugin folder for the designer plugin. On windows its C:\Qt\Tools\QtCreator\bin\plugins\designer

@taek-seo said: how to convert 'QsciDocument' to 'QTextDocument*' ? or other way to find all word ? you don't since it doesn't subclass QTextDocument. Also i don't see any accessible methods in the QsciDocument class?!