<![CDATA[QMessageBox "ok" button closes whole program.]]>Hey guys i'm new to qt and I'm trying to display an error by opening up a new QMessage box when when a button is clicked and an input was wrong.

Here's by code

@void errorFunction()
{
if(/some code/)
{

}

else
{
QMessageBox *msgBox== new QMessageBox();

msgBox->setText("You didn't enter a number 1-5! Try again");

msgBox->exec();
}

}@

]]>https://forum.qt.io/topic/48963/qmessagebox-ok-button-closes-whole-programRSS for NodeTue, 14 Apr 2026 11:26:55 GMTSun, 07 Dec 2014 22:41:31 GMT60<![CDATA[Reply to QMessageBox "ok" button closes whole program. on Tue, 09 Dec 2014 04:26:18 GMT]]>And should that not be an assignment operator(=) instead of an equivalense test (==) operator

]]>https://forum.qt.io/post/253632https://forum.qt.io/post/253632Tue, 09 Dec 2014 04:26:18 GMT<![CDATA[Reply to QMessageBox "ok" button closes whole program. on Mon, 08 Dec 2014 23:27:00 GMT]]>What should be executed after that slot is called ?

]]>https://forum.qt.io/post/253622https://forum.qt.io/post/253622Mon, 08 Dec 2014 23:27:00 GMT<![CDATA[Reply to QMessageBox "ok" button closes whole program. on Sun, 07 Dec 2014 23:13:24 GMT]]>Hi, errorFunction is called when I click a button. So I connected the button to this function like this:

@connect(rateButton,SIGNAL(clicked()),this,SLOT(errorFunction()));
@

[quote author="SGaist" date="1417993095"]Hi,

From where is errorFunction called ?

Note that you have a memory leak here. Either delete msgBox after the call to exec or allocate it on the stack.[/quote]

]]>https://forum.qt.io/post/253533https://forum.qt.io/post/253533Sun, 07 Dec 2014 23:13:24 GMT<![CDATA[Reply to QMessageBox "ok" button closes whole program. on Sun, 07 Dec 2014 22:58:15 GMT]]>Hi,

From where is errorFunction called ?

Note that you have a memory leak here. Either delete msgBox after the call to exec or allocate it on the stack.

]]>https://forum.qt.io/post/253531https://forum.qt.io/post/253531Sun, 07 Dec 2014 22:58:15 GMT