ArcGIS Engine Developer Guide

C++ APPLICATION PROGRAMMING INTERFACE
}
std::cerr OpenRaster
Dataset(CComBSTR(sFile), ppRasterDataset);
IFieldEditPtr ipFieldEdit(ipField); // ipFieldEdit not
yet declared
OR
ipFieldEdit = ipField; // ipFieldEdit previously
declared
ipFieldEdit->put_Name (CComBSTR(shape
FieldName));
ipFieldEdit->putref_GeometryDef(ipGeomDef);
ipFields->get_FieldCount(&lFieldCount);
Notes
Coding practice depends
on when the instance
is created.
C++ requires an explicit
cast to CComBSTR, and
ipWs must be created
previously and passed in
(even if still NULL).
Inline query interfacem to
IRasterWorkspace from
IWorkspace.
Coding practice depends
on where the instance is
given its value.
Use "put_" for
assignments.
If VB uses "Set" in the
assignment, you will use
"putref_" in C++.
Use "get_" to retrieve
information. Notice you
will need to pass in
a reference.
if (TypeOf m_ipDisplay_
Feedback Is INewMulti_
PointFeedback) Then
INewMultiPointFeedbackPtr ipNewMultiPoint
Feedback (m_ipDisplayFeedback);
if (ipNewMultiPointFeedback != 0)
• “p” prefix—variable is a pointer.
• “pp” prefix—variable is a pointer to a pointer.
• “ip” prefix—variable is a smart pointer.
TROUBLESHOOTING
Problems finding or opening the include file “ArcSDK.h”
If your sample is not compiling because it cannot open ArcSDK.h, make sure
that you have the correct argument for the include directory. If you installed to
the default directory, it should be either \Program Files\ArcGIS\include\CPPAPI
(for Windows) or /arcgis/include (for Linux and Solaris). If it is correct and it is
still not working, make sure the file is in that directory.
232 • ArcGIS Engine Developer Guide