#include <CtrlLib/CtrlLib.h>

using namespace Upp;

struct MyConv : Convert
{
	Value Scan(const Value& text) const
	{
		return "returning whatever I want!";
	}
};

class App : public TopWindow
{
	public:
	typedef App CLASSNAME;
	
	App()
	{
		Add(arr.SizePos());
		arr.AddColumn("some column").SetConvert(Single<MyConv>());
		for(int i = 0; i < 10; i++)
			arr.Add(Format("double click here - %d", i));
		arr.WhenLeftDouble = THISBACK(DDClick);
	}
	
	void DDClick()
	{
		PromptOK(arr.Get(0).ToString());
	}
	
	ArrayCtrl		arr;
};

GUI_APP_MAIN
{
	App().Run();
}

	for(i = 0; i < control.GetCount(); i++) {
		const Control& c = control[i];
		if(Pos(c.pos) == ii)
			return c.ctrl->GetData();
	}
	const Column& m = column[ii];                      // <- patched
	if(m.convert)                                      // <-- patched
		return m.convert->Scan(Get0(cursor, ii));  // <-- patched
	return Get0(cursor, ii);