The number of maps (data frames) in the document.
[Visual Basic .NET] Public ReadOnly Property MapCount As Integer
[C#] public int MapCount {get;}
[C++]
HRESULT get_MapCount(
long* Count
);
[C++]Parameters
Count [out, retval] Count is a parameter of type long
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.