select a particular area

[vishesh]

how to select a particular area in qwidget using mouseevents

[jpn]

Here's a one approach:

press event:
- store the event position

move event:
- draw a rectangle from press point to move event position

release event:
- apply the selection
- invalidate press point

[vishesh]

How to draw a rectangle in application

[jpn]

Use QPainter. Here's an example from the docs (http://doc.trolltech.com/3.3/qpainter#details):


void SimpleExampleWidget::paintEvent()
{
QPainter paint( this );
paint.setPen( Qt::blue );
paint.drawText( rect(), AlignCenter, "The Text" );
}

Replace QPainter::drawText() with QPainter::drawRect()..

[vishesh]

thank you its working properly:)