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how to save ole object in dwgdirect 1.13
how to save ole object in dwgdirect 1.13
hello,
i'm trying to save an ole object into database, but unfortunately i don't know how to do it. exactly i'd like to know how create an oddbole2frame object from coleclientitem object. i see the examples attached to dwgdirect, but i don't really understand it...
please, could you show me exemplary code or give information how to do it ?
thanks
marcin
hi,
we will provide such example asap and let you know where it is.
quote:
originally posted by dmitry a. novikov
hi,
we will provide such example asap and let you know where it is.
hi
where is asap?
quote:
originally posted by pqcyy
hi
where is asap?
asap = as soon as possible

quote:
originally posted by dmitry a. novikov
asap = as soon as possible
sorry! waitting for that!
hi,
this code shows how to copy ole objet's data to dwg
code:
#include "memorystream.h"
class file : public cfile
{
odstreambuf& m_stream;
public:
file(odstreambuf& stream)
: m_stream(stream)
{
m_strfilename = "oddbole2frame binary data.";
m_bcloseondelete = false;
}
uint read(void* lpbuf, uint ncount)
{
oduint32 nbytesleft = m_stream.length()-m_stream.tell();
if(nbytesleft < ncount)
ncount = nbytesleft;
m_stream.getbytes(lpbuf, ncount);
return ncount;
}
void write(const void* lpbuf, uint ncount)
{
m_stream.putbytes(lpbuf, ncount);
}
};
static void copy(oddbole2frame* pframe, coleclientitem* pitem)
{
odmemorystreamptr pbuff = odmemorystream::createnew();
{
file file(*pbuff.get());
carchive archive(&file, carchive::store);

pitem->serialize(archive);
}
pbuff->rewind();
pframe->getitemhandler()->load(*pbuff.get());
csize size;
if (pitem->getextent(&size))
{
pframe->unhandled_sethimetricsize(oduint16(size.cx), oduint16(size.cy));
}
}
hi, dmitry a. novikov
how to get ole object's data from dwg?
hi,
according code above:
pframe->getitemhandler()->getcompounddocument(*pbuff.get());
quote:
originally posted by dmitry a. novikov
hi,
this code shows how to copy ole objet's data to dwg
hi,
thank you very much for help.
quote:
originally posted by dmitry a. novikov
hi,
according code above:
pframe->getitemhandler()->getcompounddocument(*pbuff.get());
hi, i use following code to read ole object, but it didn't work.
i try to use "pframe->getitemhandler()" to get odoleitemhandler*, but the code always throw a exception, so i use "pframe->itemhandler()" instead.
when the code runs to "pitem->serialize(archive);", it prompt that the pitem's type flag is not "ot_ole2", why?
are there some wrong in my code?
btw, why i can't use oddbole2frame::getitemhandler() to get a odoleitemhandler pointer?
code:
/////////////////////////////////////////////////////////////////////////////////////
class file : public cfile
{
odstreambuf& m_stream;
public:
file(odstreambuf& stream)
: m_stream(stream)
{
m_strfilename = "oddbole2frame binary data.";
m_bcloseondelete = false;
}
uint read(void* lpbuf, uint ncount)
{
oduint32 nbytesleft = m_stream.length()-m_stream.tell();
if(nbytesleft < ncount)
ncount = nbytesleft;
m_stream.getbytes(lpbuf, ncount);
return ncount;
}
void write(const void* lpbuf, uint ncount)
{
m_stream.putbytes(lpbuf, ncount);
}
};
static void copy(oddbole2frame* pframe, coleclientitem* pitem)
{
odmemorystreamptr pbuff = odmemorystream::createnew();
(pframe->itemhandler())->getcompounddocument(*pbuff.get());

pbuff->rewind();
file file(*pbuff.get());
carchive archive(&file, carchive::load);
pitem->serialize(archive);
pbuff->rewind();
}
////////////////////////////////////////////////////////////////////////////////////
hi,
oddbole2frame must be opened for write to call getitemhandler().
we will probably rename(change) these functions to be more adequate.
try this
code:
static void copy(const oddbole2frame* pframe, coleclientitem* pitem)
{
odmemorystreamptr pbuff = odmemorystream::createnew();
// get item handler for write and get compound document data.
//(pframe->getitemhandler())->getcompounddocument(*pbuff.get());
// get item handler for read and store its data in coleclientitem mfc format.
(pframe->itemhandler())->save(*pbuff.get());

pbuff->rewind();
file file(*pbuff.get());
carchive archive(&file, carchive::load);
pitem->serialize(archive);
pbuff->rewind();
}
thanks, it works now!
best regards!