grab() QTextEdit is different between linux and windows

[world.kang]

Resolved myself.
At ubuntu it's ok to to with before.

tempEdit.grab().save("temp.png");

tempEdit.grab().save("temp.png");

To copy to clipboard, switch view to plain text mode 

But at windows grab should be done from viewport

tempEdit.viewport()->grab().save("temp.png");

tempEdit.viewport()->grab().save("temp.png");

To copy to clipboard, switch view to plain text mode