Wt

I need to save a binary field (record of table) of the postgres database to a file on disk

this field declared as std::vector

Marcio,

I propose something like:

std::ofstream outfile("filename.bin", std::ios::out | std::ios::binary);
outfile.write(&v[0], v.size());
outfile.close();

BR,

wim.

Wim,

thanks for the help but error occurred

erro: invalid conversion from 'const unsigned char*' to 'const char*' [-fpermissive]

Márcio

std::ofstream outfile("filename.bin", std::ios::out | std::ios::binary);
outfile.write((const char*)&v[0], v.size());
outfile.close();

thank you very much

Hi Wim,

I need more help.

this is a file zip and i need to get a one file of this zip, to show in component WMemoryResource

I got inflate the zip and get the file this is the code.

zip.OpenFromMemory((const char*)&attachment~~binarydata[0], attachment~~>binarydata.size());

after i got the file

CkZipEntry *entry = zip.FirstEntry();

and then i inflate

entry->Inflate(*outData);

and the problem is

wmr.setData(*outData->getData());

message: request for member 'setData' in 'wmr', which is of non-class type

solved

wmr->setData(outData.getData(),outData.getSize());