Using the serialization mechanism in the document view structure Using the OLE clipboard
FMD (http://www.fmdstudio.net)
Using the serialization mechanism in the document view structure Using the OLE clipboard
First, serialization support
From the COBJECT derived object to add a serialized support by adding a specific macro statement in class declarations and implementation
DECLARE_SERIAL (CsomeObject)
Implement_serial (csomeObject, csomebase, 1)
Rebate the SERIALIZE member function, writing object's storage and reading procedure.
OLE copy of the two objects
// Establish a memory file
CsharedFile File;
// Establish a document object for writing
CARCHIVE AR (& File, Carchive :: Store);
// For Ar, serialization functions for objects
Somobjects.Serialize (ar);
ar.close ();
COLEDATASOURCE * PDATASOURCE = NULL;
Try
{
// Establish an OLE data source
PDataSource = New ColedataSource;
/ / Specify the memory file to the data source
PDataSource-> CacheglobalData (m_cfdraw, file.detach ());
// Setting a clipboard
PDataSource-> setClipboard ();
}
Catch_all (e)
{
DELETE PDATASOURCE;
Throw_last ();
}
END_CATCH_ALL
Third, the OLE paste
// Establish an OLE data object
COLEDATAOBJECT DATAOBJECT;
/ / Connect the clipboard
DataObject.attachClipboard ();
IF (DataObject.isdataavailable / / Determine if the specified format exists
{
// Get memory file pointer
Cfile * pfile = DataObject.getfileData (m_cfdraw);
IF (pfile! = null)
{
// Establish a document object for reading
CARCHIVE AR (Pfile, Carchive :: Load);
Try
{
// For Ar, call the serialization function of the object.
Graphylist.serialize (ar);
}
Catch_all (e)
{
ar.close ();
DELETE PFILE;
Throw_last ();
}
END_CATCH_ALL
ar.close ();
DELETE PFILE;
}
}
Fourth, about format
When using the OLE clipboard, you need to register your own format.
Declare and define a static structure in a suitable place (following the document CGRAPHDRAWDOC)
Static ClipFormat M_cfdraw;
Clipformat cgraphdrawdoc :: m_cfdraw = NULL;
/ / Registration format when program initialization
CgraphdrawDoc :: m_cfdraw = (clipformat) RegisterClipboardFormat (_T ("fMD graphdraw"));
