public void Next(int enumcountmax, out OPCItemAttributes[] attributes)
{
attributes = null;
IntPtr ptrAtt;
int count;
ifEnum.Next(enumcountmax, out ptrAtt, out count);
int runatt = (int)ptrAtt;
if ((runatt == 0) || (count <= 0) || (count > enumcountmax))
{
return;
}
attributes = new OPCItemAttributes[count];
IntPtr ptrString;
for (int i = 0; i < count; i++)
{
attributes[i] = new OPCItemAttributes();
ptrString = (IntPtr)Marshal.ReadInt32((IntPtr)runatt);
attributes[i].AccessPath = Marshal.PtrToStringUni(ptrString);
Marshal.FreeCoTaskMem(ptrString);
ptrString = (IntPtr)Marshal.ReadInt32((IntPtr)(runatt + 4));
attributes[i].ItemID = Marshal.PtrToStringUni(ptrString);
Marshal.FreeCoTaskMem(ptrString);
attributes[i].Active = (Marshal.ReadInt32((IntPtr)(runatt + 8))) != 0;
attributes[i].HandleClient = Marshal.ReadInt32((IntPtr)(runatt + 12));
attributes[i].HandleServer = Marshal.ReadInt32((IntPtr)(runatt + 16));
attributes[i].AccessRights = (OPCACCESSRIGHTS)Marshal.ReadInt32((IntPtr)(runatt + 20));
attributes[i].RequestedDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(runatt + 32));
attributes[i].CanonicalDataType = (VarEnum)Marshal.ReadInt16((IntPtr)(runatt + 34));
attributes[i].EUType = (OPCEUTYPE)Marshal.ReadInt32((IntPtr)(runatt + 36));
attributes[i].EUInfo = Marshal.GetObjectForNativeVariant((IntPtr)(runatt + 40));
DUMMY_VARIANT.VariantClear((IntPtr)(runatt + 40));
int ptrblob = Marshal.ReadInt32((IntPtr)(runatt + 28));
if ((ptrblob != 0))
{
int blobsize = Marshal.ReadInt32((IntPtr)(runatt + 24));
if (blobsize > 0)
{
attributes[i].Blob = new byte[blobsize];
Marshal.Copy((IntPtr)ptrblob, attributes[i].Blob, 0, blobsize);
}
Marshal.FreeCoTaskMem((IntPtr)ptrblob);
}
runatt += 56;
}
Marshal.FreeCoTaskMem(ptrAtt);
}
public void Next( int enumcountmax, out OPCItemAttributes[] attributes )
{
attributes = null;
IntPtr ptrAtt;
int count;
ifEnum.Next( enumcountmax, out ptrAtt, out count );
int runatt = (int) ptrAtt;
if( (runatt == 0) || (count <= 0) || (count > enumcountmax) )
return;
attributes = new OPCItemAttributes[ count ];
IntPtr ptrString;
for( int i = 0; i < count; i++ )
{
attributes[i] = new OPCItemAttributes();
ptrString = (IntPtr) Marshal.ReadInt32( (IntPtr) runatt );
attributes[i].AccessPath = Marshal.PtrToStringUni( ptrString );
Marshal.FreeCoTaskMem( ptrString );
ptrString = (IntPtr) Marshal.ReadInt32( (IntPtr)(runatt + 4) );
attributes[i].ItemID = Marshal.PtrToStringUni( ptrString );
Marshal.FreeCoTaskMem( ptrString );
attributes[i].Active = (Marshal.ReadInt32( (IntPtr)(runatt + 8) )) != 0;
attributes[i].HandleClient = Marshal.ReadInt32( (IntPtr)(runatt + 12) );
attributes[i].HandleServer = Marshal.ReadInt32( (IntPtr)(runatt + 16) );
attributes[i].AccessRights = (OPCACCESSRIGHTS) Marshal.ReadInt32( (IntPtr)(runatt + 20) );
attributes[i].RequestedDataType = (VarEnum) Marshal.ReadInt16( (IntPtr)(runatt + 32) );
attributes[i].CanonicalDataType = (VarEnum) Marshal.ReadInt16( (IntPtr)(runatt + 34) );
attributes[i].EUType = (OPCEUTYPE) Marshal.ReadInt32( (IntPtr)(runatt + 36) );
attributes[i].EUInfo = Marshal.GetObjectForNativeVariant( (IntPtr)(runatt + 40) );
DUMMY_VARIANT.VariantClear( (IntPtr) (runatt + 40) );
int ptrblob = Marshal.ReadInt32( (IntPtr)(runatt + 28) );
if( (ptrblob != 0) )
{
int blobsize = Marshal.ReadInt32( (IntPtr)(runatt + 24) );
if( blobsize > 0 )
{
attributes[i].Blob = new byte[ blobsize ];
Marshal.Copy( (IntPtr) ptrblob, attributes[i].Blob, 0, blobsize );
}
Marshal.FreeCoTaskMem( (IntPtr) ptrblob );
}
runatt += 56;
}
Marshal.FreeCoTaskMem( ptrAtt );
}