如何删除QPlainTextEdit及其内容之间的空间

Question

I'm using C++ and Qt on Windows to create a simple application which outputs some data to the screen using a QPlainTextEdit. The problem is that there is a small internal margin between the QPlainTextEdit's border and the text as shown here: http://i.stack.imgur.com/ovIrJ.png .
(The text in the QPlainTextEdit has been selected to highlight the gap)

I have tried using setContentsMargins(0, 0, 0, 0) and setStyleSheet("padding:0;") , and using a QTextEdit or a QTextBrowser instead, but I still get that small margin.

Googling it only turned up this unanswered question on qtcentre.org .

I know this is kind of a trivial thing but its really been annoying me for a while now.

Thanks in advance for any help!

Answer 1

Use QTextDocument::setDocumentMargin() . Setting it to zero does the trick. To obtain QTextDocument there's a method QPlainTextEdit::document() .