How can i use ihookhelper interface in python?

Question

I use ArcObject in python to develope a tool. I import comtypes in python to access the arcmap layers in python and use ifeaturelayer interface. I have to set featurelayer to phookhelper.focusmap.get_layer(i) to access the layers in ArcMap. The problem is that I can't find get_layer method in python. Is there any way to access the ArcMap layers in python using ArcObjects?

for (int i = 0; i < phookhelper.FocusMap.LayerCount; i++)
            {
                if (phookhelper.FocusMap.get_Layer(i).Name == comboBox1.Text)
                {
                    pfeaturelayer = (IFeatureLayer)phookhelper.FocusMap.get_Layer(i);

                    pfc = pfeaturelayer.FeatureClass;

Community · Accepted Answer · 2017-04-13 12:33:51Z

2

Try Layer[i] instead of get_Layer(i).

Instead of using IHookHelper you can get a reference to the ArcMap application, cast it to IMxApplication and then get its FocusMap.

More pointers here: http://www.pierssen.com/arcgis/upload/misc/python_arcobjects.pdf

Useful helper module here: https://gis.stackexchange.com/a/5082/753

edited Apr 13, 2017 at 12:33

CommunityBot

1

answered Sep 28, 2012 at 13:50

blah238

36k8 gold badges97 silver badges205 bronze badges

could you please write the cast code ?

BBG
– BBG

2012-10-06 07:54:00 +00:00
Commented Oct 6, 2012 at 7:54
Like this: CType(pApp, esriArcMapUI.IMxApplication) where CType is a helper function defined in either of the above links, pApp is an IApplication reference, and esriArcMapUI is a reference to the comtypes.gen wrapper around the esriArcMapUI.olb library.

blah238
– blah238

2012-10-06 20:07:01 +00:00
Commented Oct 6, 2012 at 20:07

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