opc_type.c

Demonstrate how to corretly get the type of an Office document.

/*
    Corretly get the type and an Office document.

    Ussage:
    opc_type FILENAME

    Sample:
    opc_type OOXMLI1.docx
*/
#include <opc/opc.h>
#ifdef WIN32
#include <crtdbg.h>
#endif

int main( int argc, const char* argv[] )
{
#ifdef WIN32
     _CrtSetDbgFlag (_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif

    opcInitLibrary();
    for(int i=1;i<argc;i++) {
        opcContainer *c=opcContainerOpen(_X(argv[1]), OPC_OPEN_READ_ONLY, NULL, NULL);
        opcRelation rel=opcRelationFind(c, OPC_PART_INVALID, NULL, _X("http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument"));
        if (OPC_RELATION_INVALID!=rel) {
            opcPart mainPart=opcRelationGetInternalTarget(c, OPC_PART_INVALID, rel);
            if (OPC_PART_INVALID!=mainPart) {
                const xmlChar *type=opcPartGetType(c, mainPart);
                printf("Office Document Type: %s\n", type);
                if (0==xmlStrcmp(type, _X("application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml"))) {
                    printf("WORD Document\n");
                } else if (0==xmlStrcmp(type, _X("application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml"))) {
                    printf("POWERPOINT Document\n");
                } else if (0==xmlStrcmp(type, _X("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"))) {
                    printf("EXCEL Document\n");
                }
            }
        }
        opcContainerClose(c, OPC_CLOSE_NOW);
    }
    opcFreeLibrary();
#ifdef WIN32
    OPC_ASSERT(!_CrtDumpMemoryLeaks());
#endif
    return 0;
}