How to check selected content on page

Question

Hi all,
I would like to create plugin that works with selected content on document. Plugin should do following: user selects some frame, graphic content that is placed on document. Than he opens my plugin and click on button. After button click I must check if something is selected (it would be only graphic items, not table and text), then I would like to get information (on which page is placed, is in the frame picture, dimension of frame...) from selected item. So I would like to ask you what is the best approach for that.
Right now I have selection manager and from that I get ILayoutSelectionSuite and dont know what to do next, I have been looking thru adobe documents, but didnt find any article about it...
thx

Answer 1

Hi all,
I have a little problem with calling my selection suite. I have following hierarchy:
In STButtonAction I handle button clicks, when user select button I would like to chech is is something selected and if yes, than I would like to get from that selection some information about it. I placed in ASB virtual method called MyTestMethod(ISelectionManager *myManager), in Layout CSB I wrote its implementation:
void STSuiteLayoutCSB::MyTestMethod(ISelectionManager *myManager)
  InterfacePtr<IGeometrySuite> itemGeometry(myManager, UseDefaultIID());
          PMRect bounds = itemGeometry->GetSelectionBounds() ;//what to use here??
  cout << "Something just happend...";
Now I have 2 problems, first: when I get Interface pointer to IGeometry suite, it dont know its method GetSelectionBounds (I have noticed, that this method is virtual, so It does nothnig and somewhere must be its body writen...) any tips, how to get this working??
And my second problem is, How to call my suite?? When I try something like this:
Utils<ISelectionUtils> iSelectionUtils;
          if (iSelectionUtils != nil) {
                         ISelectionManager* iSelectionManager = iSelectionUtils->GetActiveSelection();
                         if (iSelectionManager != nil)
                                             InterfacePtr<ISTSuite> iLayoutSuite(iSelectionManager, UseDefaultIID());
                                             if (iLayoutSuite !=nil)
                                                                 iLayoutSuite->myMethod(iSelectionManager);
It tells me that, ISTSuite was not declared in this scope... I think, that I am doing something wrong...
thx for any tips