Invoke a slot by its name in QString...

[sunil.thaha]

Hi,

Suppose there is a slot called a foo() in my DerivedFromQObject class;
I will have a QObject* ptr pointing to the DerivedFromQObject
I need to extract the Slots for the DerivedFromQObject's obj.
and ivoke its slot at run time. It's just like a plugin.

[munna]

Hi,

I wonder if you can do this.

[jrideout]

Try using
const QMetaObject * QObject::metaObject () const

Check out the docs for QMetaObject it should give you what you need

[wysota]

Hi,

Suppose there is a slot called a foo() in my DerivedFromQObject class;
I will have a QObject* ptr pointing to the DerivedFromQObject
I need to extract the Slots for the DerivedFromQObject's obj.
and ivoke its slot at run time. It's just like a plugin.

Dynamic signals and slots

[jrideout]

I haven't tried this but something like this might work:

DerivedObj * myDerivedObj = new myDerivedObj();
if  (myDerivedObj->metaObject()->indexOfSlot( "slotName" ) != -1)
{
    QMetaObject::invokeMethod ( myDerivedObj, "slotName", Qt::DirectConnection);
}

DerivedObj * myDerivedObj = new myDerivedObj();
if  (myDerivedObj->metaObject()->indexOfSlot( "slotName" ) != -1)
{
    QMetaObject::invokeMethod ( myDerivedObj, "slotName", Qt::DirectConnection);
}

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