Get id of a changed combobox Topic is solved

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torsten
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Get id of a changed combobox

Post by torsten » Wed May 07, 2008 12:56 pm

Hello,

I'm writing a programm with an unknown number of comboboxes which are defined in a xrc file. To get the value of the comboboxes I wanted to use just one event function for all comboboxes. But to get the value I need the id of the changed combobox. How do I get this id?

Thanks

Jorg
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Post by Jorg » Wed May 07, 2008 1:25 pm

That is a tough one. What you want is an XRC generated ID te be identified by you without knowing what ID belongs to what XRCCTRL string?

I don't think you can do that easily.. The XRC string is not stored in the control. What you can do is create a custom XRC handler, and handle the comboboxes yourself. When for example you have to instantiate an XRC control with a certain name (convention) you can store the generated ID together with the string or pointer that identifies it in a hash map. Then upon an event, look at what ID belongs to what control.

Handling all comboboxes with one event is easy, simply specify -1 as ID and all events of that type will be sent to that one handler ..

http://docs.wxwidgets.org/trunk/classwx ... ndler.html
http://wiki.wxwidgets.org/XRC

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benedicte
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Re: Get id of a changed combobox

Post by benedicte » Thu May 22, 2008 4:20 pm

torsten wrote:Hello,

I'm writing a programm with an unknown number of comboboxes which are defined in a xrc file. To get the value of the comboboxes I wanted to use just one event function for all comboboxes. But to get the value I need the id of the changed combobox. How do I get this id?

Thanks
Use the following:

Code: Select all


BEGIN_EVENT_TABLE(MyClass, BaseClass)
..
EVT_COMBOBOX (wxID_ANY, MyClass::MyHandler)
..
END_EVENT_TABLE()

void MyClass::MyHandler (wxCommandEvent &event)
{
   int combo_id = event.GetId();
   //...
}

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