QSettings

[michael]

I am using :

settings.value( "coco", "ERROR" ).toString();

settings.value( "coco", "ERROR" ).toString();

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this works

const QString s = "coco";
settings.value( s, "ERROR" ).toString();

const QString s = "coco";
settings.value( s, "ERROR" ).toString();

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this insists on returning "ERROR"

Is there a way to pass a variable to settings.value ?

s being a const string

const QString works for me on (Qt 4.1.3 / WindowsXP / Visual Studio 2005) and (Qt 4.0.1 / WindowsXP / mingw - g++)

Here is the code:

#include <QString>
#include <QSettings>
#include <iostream>
 
int main(int argc, char *argv[])
{
	QSettings settings("TestSoft", "QSettings Test");
	settings.setValue("testName", 100);
	const QString s = "testName";
	std::cout << "Test call with char string: " 
		<< settings.value("testName", "ERROR").toString().toStdString() << std::endl
		<< "Test call with QString: " 
		<< settings.value(s, "ERROR").toString().toStdString() << std::endl
		<< "For good measure create error: "
		<< settings.value("doesNotExist", "ERROR").toString().toStdString() << std::endl;
	char t;
	std::cin >> t;
	return 0;
}

#include <QString>
#include <QSettings>
#include <iostream>

int main(int argc, char *argv[])
{
	QSettings settings("TestSoft", "QSettings Test");
	settings.setValue("testName", 100);
	const QString s = "testName";
	std::cout << "Test call with char string: " 
		<< settings.value("testName", "ERROR").toString().toStdString() << std::endl
		<< "Test call with QString: " 
		<< settings.value(s, "ERROR").toString().toStdString() << std::endl
		<< "For good measure create error: "
		<< settings.value("doesNotExist", "ERROR").toString().toStdString() << std::endl;
	char t;
	std::cin >> t;
	return 0;
}

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This is the output:

C:\...>qsettings.exe
Test call with char string: 100
Test call with QString: 100
For good measure create error: ERROR

exit

C:\...>

I hope this helps you. If you want to compile the code above don't forget to add the following to the *.pro file as this is a console application.
CONFIG += console

-Michael