problem in drawText

[wagmare]

hi friends,

i got a problem in QPainter::drawText()
i try to insert a new line "\n" to a QString text "Maintenance" as

string = "main \ntenance";

but it displayed as main[]tenance .. a box like undefined char is showing instead of
"main
tenance"

so i tried

string.insert(4, "\n");               //same as previous
string.insert(4, QChar::LineSeparator);  //same as previous

string.insert(4, "\n");               //same as previous
string.insert(4, QChar::LineSeparator);  //same as previous

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this one is working fine if i use QGraphicsTextItem

please help me solving this issue ..