Using C++ header in C#
I wish to know the possible way for me to use the C++ header, in this case the ogr/gdal header in C#.
I am currently trying to 'turn' all the header into .dll file and using dllImport in C#. However, I find no way to import classes, which to be used to create object to store dataset. Is it a fine way converting to .dll in order to achieve what i want?
On the other hand, I found out from msdn about unmanaged/managed code. I have seen the migration guide provided in msdn, but I can hardly understand the meaning from it. Does anyone knows a better example for doing migration?
Anyhow, I am very glad if someone has a better solution to make it works.
Thanks a million in advance.
regrads,
Pin.
[735 byte] By [
teapeng] at [2007-12-16]
Thanks for responding to my question. In this case, the header I intrested would be the OGR/GDAL header that I wish to use for my GIS research. Below is part of the class declared in the "ogrsf_frmts.h". I know some simple dll creation with function. However, this header seems to has classes and complex function which confused me a lot. I am sorry if this header confuse you, but I do need a way on how to convert this piece of header so that I can use in my C# program. However, if you have a better solution to use C++ header in C# would be much welcome. Once again, thanks a million in advance on helping me.
class CPL_DLL OGRDataSource
{
public:
OGRDataSource();
virtual ~OGRDataSource();
static void DestroyDataSource( OGRDataSource * );
virtual const char *GetName() = 0;
virtual int GetLayerCount() = 0;
virtual OGRLayer *GetLayer(int) = 0;
virtual OGRLayer *GetLayerByName(const char *);
virtual OGRErr DeleteLayer(int);
virtual int TestCapability( const char * ) = 0;
virtual OGRLayer *CreateLayer( const char *pszName,
OGRSpatialReference *poSpatialRef = NULL,
OGRwkbGeometryType eGType = wkbUnknown,
char ** papszOptions = NULL );
virtual OGRLayer *CopyLayer( OGRLayer *poSrcLayer,
const char *pszNewName,
char **papszOptions = NULL );
OGRStyleTable *GetStyleTable(){return m_poStyleTable;}
virtual OGRLayer * ExecuteSQL( const char *pszStatement,
OGRGeometry *poSpatialFilter,
const char *pszDialect );
virtual void ReleaseResultSet( OGRLayer * poResultsSet );
virtual OGRErr SyncToDisk();
int Reference();
int Dereference();
int GetRefCount() const;
int GetSummaryRefCount() const;
OGRErr Release();
protected:
OGRErr ProcessSQLCreateIndex( const char * );
OGRErr ProcessSQLDropIndex( const char * );
OGRStyleTable *m_poStyleTable;
int m_nRefCount;
};
