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Home/ Questions/Q 8355095
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Editorial Team
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Editorial Team
Asked: June 9, 20262026-06-09T09:45:33+00:00 2026-06-09T09:45:33+00:00

I have a QString with content that looks something like this: resolution=[ imagesize ]&quality=[

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I have a QString with content that looks something like this:

“resolution=[imagesize]&quality=[imagequal]“.

And I have a QHash<QString, QString> mDefaults container that holds a list with some of my ‘key’ values.
(“imagesize” and “imagequal” are so called ‘keys’ that I need to replace with values from my hash container)

mDefaults.insert("imagesize", "320x240");
mDefaults.insert("imagequal", "standard");

My goal is to get a string that will look something like this:
“resolution=320×240&quality=standard” (Note that “[” and “]” are gone too)

Is there any fast/good way to do this kind of string key-value replacement with Qt library?

Thanks.

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  1. Editorial Team
    Editorial Team
    2026-06-09T09:45:35+00:00Added an answer on June 9, 2026 at 9:45 am
    for(QMap::iterator i=mDefaults.begin();i!=mDefaults.end();++i) {
        myString.replace(QString("[%1]").arg(i.key()), i.value());
    }
    
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