/* registers the OCX if do_reg is TRUE, unregisters it otherwise */
HRESULT do_ocx_reg(HMODULE hocx, BOOL do_reg, const WCHAR *flags, const WCHAR *param)
{
DLLREGISTER reg_func;
if (do_reg)
reg_func = (DLLREGISTER)GetProcAddress(hocx, "DllRegisterServer");
else
reg_func = (DLLREGISTER)GetProcAddress(hocx, "DllUnregisterServer");
if (!reg_func)
return E_FAIL;
reg_func();
return S_OK;
}
/** Finds the interface, then calls the register function which should
allocate all the data structures. Set our buffer and length and return.
\n\b Arguments:
\n\b Returns: Structure or NULL on error.
****************************************************************************/
struct open_gpib_dev *find_and_register_if(const char *if_name, int type, uint32_t debug,char *buf, int blen)
{
open_gpib_register reg_func;
struct open_gpib_dev *open_gpibp=NULL;
if(NULL == (reg_func=open_gpib_find_interface(if_name, type)))
return NULL;
if(DBG_TRACE<=debug)fprintf(stderr,"reg %s\n",if_name);
/**this call allocates the interface's open_gpib_dev structure
and allocates the internal structure. It also sets if_name.
see the macro in _open_gpib.h GPIB_TRANSPORT_FUNCTION
*/
if(NULL == (open_gpibp=reg_func()) )
return NULL;
open_gpibp->buf=buf;
open_gpibp->buf_len=blen;
open_gpibp->debug=debug;
return open_gpibp;
}
static HRESULT setup_dll(install_ctx_t *ctx)
{
HMODULE module;
HRESULT hres;
HRESULT (WINAPI *reg_func)(void);
module = LoadLibraryW(ctx->install_file);
if(!module)
return E_FAIL;
reg_func = (void*)GetProcAddress(module, "DllRegisterServer");
if(reg_func) {
hres = reg_func();
}else {
WARN("no DllRegisterServer function\n");
hres = E_FAIL;
}
FreeLibrary(module);
return hres;
}
