how to get the accept signal by clicking Apply button

[weixj2003ld]

I create a myDialog inhereted from QDialog,and add an Apply button,as you know,when click Apply button,the slot applyslot() is used and the dialog window should not be closed.

I use myDialog as follows:

myDialog *mydialog=new myDialog (this);
 
if(mydialog->exec())
{
    ......
}

myDialog *mydialog=new myDialog (this);

if(mydialog->exec())
{
    ......
}

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for not used accepted() in applyslot(),so applyslot() does not do,how to let the slot applyslot() do and the window does not close?

[ChrisW67]

Do not do anything in the applyslot() that will close the dialog. That is, do not call close(), accept(), reject(), or done() or anything that calls them.

[weixj2003ld]

Do not do anything in the applyslot() that will close the dialog. That is, do not call close(), accept(), reject(), or done() or anything that calls them.

If I do as you said,the result of

mydialog->exec()

mydialog->exec()

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will be false,because only accept() or done() is called ,it will be true.

[ChrisW67]

If you continue with a modal dialog then it has three buttons:

• OK: Press this, pending stuff is done, accept() is called, the dialog closed, and true returned.
• Cancel: Press this, pending stuff is not done, reject() is called, the dialog closed, and false returned.
• Apply: Press this, pending stuff is done, nothing is done that would close the dialog, and exec() does not return.

If you want a non-modal dialog then call show() not exec(). You do not get a boolean return this way so you may need to reconsider how stuff is done.