Qtcreator load custom widget plugin failed

Anqi

Hi:
I'm new to qt, I create a qt custom widget.In the slot function i init a QSerialPortInfo .
like this: QSerialPortInfo info(ui->serialPortInfoListBox->itemText(idx));
the qtcreator can't load this custom widget plugin if this code in any slot function . when i marked this line the qtcreator can load the plugin successfully.

when load the custom widget plugin, every slot function will be called?
calss QSerialPortInfo can't be init in custom widget plugin?
Thanks!

SGaist

Hi and welcome to devnet,

What platform are you developing on ?
What version of Qt Creator are you using ?
What version of Qt are you using for that plugin?
Did you build Qt Creator yourself ?

mrjj

@Anqi
Adding to @SGaist

when load the custom widget plugin, every slot function will be called?
No. Creator/Desiner calls the QDesignerCustomWidgetInterface meta functions
bool isContainer() const override;
bool isInitialized() const override;
QIcon icon() const override;
QString domXml() const override;
QString group() const override;
QString includeFile() const override;
QString name() const override;
QString toolTip() const override;

but unless you hooked your slots up to some signals that triggers during load,
it wont call any slots as such.

class QSerialPortInfo can't be init in custom widget plugin?
You can use any class as you normally would.
No restriction as such.