c++ - QT - How to retrieve QVariant Values from combobox? -


i'm using qvariant store object inside of qcombobox, appears work fine. implementing code:

add type qvariant in header:

q_declare_metatype(cdiscrecorder*)

pdiscrecorder casted cdiscrecorder:

cdiscrecorder* pdiscrecorder = new cdiscrecorder();

then stored in combobox

ui->cbdrives->additem(qstring::fromwchararray(strname), qvariant::fromvalue(pdiscrecorder));

the problem arises when try pull out:

cdiscrecorder* discrecorder = this->ui->cbdrives->itemdata(index).value<cdiscrecorder*>;

i receive error:

error c3867: 'qvariant::value': function call missing argument list; use '&qvariant::value' create pointer member

i tried implement hint in error code no avail, have followed thread add qobject in combo box of qt implement behavior, how can object ?

thanks

the compiler giving hint argument list missing - should need add brackets tell you're trying call function. change 

cdiscrecorder* discrecorder = this->ui->cbdrives->itemdata(index).value<cdiscrecorder*>();

and should work. that's quite long line, might cleaner break out

qvariant variant = this->ui->cbdrives->itemdata(index); cdiscrecorder* discrecorder = variant.value<cdiscrecorder*>();

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