@void SeismicCanvasWindow::showPrintDialog(){
QPrintDialog printDialog(thePrinter, this);
printDialog.setWindowModality(Qt::WindowModal);
printDialog.open(seismicCanvas, SLOT(printCanvas(QPrinter*)));
}
@

With the corresponding slot:

@
void SeismicCanvas::printCanvas(QPrinter *printer){
int resolution, i;
QList<int> resolutions;

resolution = printer->resolution();
resolutions = printer->supportedResolutions();
for(i=0; i< resolutions.size(); i++)
    if(resolutions[i] > resolution) resolution = resolutions[i];

printer->setResolution(resolution);

cerr <<"Printer resolution is set to:" << resolution <<"dpi\n";

}
@

This crashes every time the print dialog is closed, with either ok or cancel buttons. Clearly I am doing something wrong, but I get no error that the signal and slot aren't connected.

Any suggestions for my error?

Thanks Glenn