Hi,
I've put together a simple test app that demonstrates the problem I'm
having with QSettings.value() INT arguments on Windows.
An invalid argument type error causes the app to crash on startup.
Line 37 of the attached file is the culprit. The line works without
issue on OSX. Do I need to wrap the integer setting value in a string
to work around the invalid type error? What's common practice for
wrestling with integer Windows preference settings?
Thanks!
Scott
#!/usr/bin/env python
import sys
from PyQt4 import QtCore, QtGui
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QMainWindow.__init__(self, parent)
self.settings = QtCore.QSettings()
self.readSettings()
w = QtGui.QWidget()
self.setCentralWidget(w)
vbox = QtGui.QVBoxLayout()
w.setLayout(vbox)
self.setWindowTitle(self.tr("Settings Test"))
self.setMinimumSize(160,160)
self.resize(480,320)
def readSettings(self):
# main window
self.restoreState(self.settings.value("MainWindow/state").toByteArray())
self.restoreGeometry(self.settings.value("MainWindow/geometry").toByteArray())
# application
self.dbHost = self.settings.value("Application/dbHost",
QtCore.QVariant(QtCore.QString("localhost"))).toString()
self.dbPort = self.settings.value("Application/dbPort", 5432).toInt()[0]
print "self.dbHost: ", self.dbHost
print "self.dbPort: ", self.dbPort
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
mainwindow = MainWindow()
mainwindow.show()
sys.exit(app.exec_())
On Nov 10, 2009, at 1:12 AM, Scott Frankel wrote:
Hi,
I'm getting a fatal error from the following QSettings line on
Windows. But on Mac OSX, the same code runs without error. The exe
log file says that argument 2 of settings.value() has an invalid
type. That'd be my int.
The first line of the method reads a string value. That appears to
function properly on both platforms.
Any suggestions?
Thanks!
Scott
def readSettings(self):
self.dbHost = self.settings.value("Application/dbHost",
QtCore.QVariant(QtCore.QString("localhost"))).toString() # this
works on both platforms
self.dbPort = self.settings.value("Application/dbPort",
5432).toInt()[0] # this fails on windows, but works on osx
_______________________________________________
PyQt mailing list [email protected]
http://www.riverbankcomputing.com/mailman/listinfo/pyqt
_______________________________________________
PyQt mailing list [email protected]
http://www.riverbankcomputing.com/mailman/listinfo/pyqt
