<![CDATA[[solved] Trouble getting color from QTableWidgetItem]]>Hello, I am trying to do things like change the background color of a QTableWidgetItem when I click on it.

@ QTableWidgetItem *cell = ui->tableWidget->itemAt( index.column(), index.row() );
QColor color = cell->background().color(); //test code
int r=40; int g=60; int b=80; int a=0;
color.getRgb( &r, &g, &b, &a ); //OR
r=color.red(); g=color.green(); b=color.blue();
qDebug() << "r=" << r << " g=" << g << " b=" << b;@

Both getRgb and color.red() etc. are returning 0,0,0. Some of the cells are gray, some of them are white. Why am I not getting the correct color?
Thanks
Ron

]]>https://forum.qt.io/topic/42869/solved-trouble-getting-color-from-qtablewidgetitemRSS for NodeSat, 02 May 2026 04:19:39 GMTMon, 23 Jun 2014 17:06:03 GMT60<![CDATA[Reply to [solved] Trouble getting color from QTableWidgetItem on Mon, 23 Jun 2014 18:22:43 GMT]]>I figured it out. QTableWidgetItem::itemAt "returns the item at the position equivalent to QPoint(ax, ay) in the table widget's coordinate system" not column and row in the table. I changed itemAt() to item() and reversed row/column. Here is what works:

@QTableWidgetItem *cell = ui->tableWidget->item( index.row(), index.column() );
QColor color = cell->background().color();
int r=0; int g=0; int b=0; int a=0;
color.getRgb( &r, &g, &b, &a );
qDebug() << "r=" << r << " g=" << g << " b=" << b;
qDebug() << "checked=" << cell->checkState(); //I made some of the cells Qt::ItemIsUserCheckable@

]]>https://forum.qt.io/post/233099https://forum.qt.io/post/233099Mon, 23 Jun 2014 18:22:43 GMT<![CDATA[Reply to [solved] Trouble getting color from QTableWidgetItem on Mon, 23 Jun 2014 17:37:31 GMT]]>Apparently I am not getting the cell correctly because cell->setText("abc") does not work.

]]>https://forum.qt.io/post/233097https://forum.qt.io/post/233097Mon, 23 Jun 2014 17:37:31 GMT