CODEWITHSUNDEEP
c++qt
Engine
Engine

Reputation: 5422

how to use integer value in QString

I have a program in which I want to use QString in a Qlabel :

      text1->setText(QString("Actual value of Threshold: %1 mV").arg(slider->value()*2.745098));

well this work fine, but I would like to get integer value like 100 mV instead of 100.84654mV any Idea how can I do.

silder->value();

is given an integer value back. and casting like :

 text1->setText(QString("Actual value of Threshold: %1 mV").arg((int)slider->value()*2.745098));

Upvotes: 0

Views: 382

Answers (2)

hank
hank

Reputation: 9853

int value = qRound(slider->value() * 2.745098);
QString text = QString("Actual value of Threshold: %1 mV").arg(value);

Upvotes: 0

haitaka
haitaka

Reputation: 1856

You should cast the calculated value to int.

text1->setText(QString("Actual value of Threshold: %1 mV").arg((int)(slider->value()*2.745098)));

Upvotes: 1

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