This example loads the dynamic link module "DISPLAY.DLL," and queries the size of the font directory id=1 resource.

#define INCL_DOSRESOURCES     /* Resource types */
#define INCL_DOSMODULEMGR     /* Module Manager values */
#define INCL_DOSERRORS        /* DOS error values */
#include <os2.h>
#include <stdio.h>

int main(VOID) {
UCHAR     LoadError[256] = "";            /* Area for Load failure information */
PSZ       ModuleName = "C:\\OS2\\DLL\\PMWP.DLL";  /* DLL with resources */
HMODULE   ModHandle  = NULLHANDLE;        /* Handle for module */
ULONG     Size       = 0;                 /* Resource size */
APIRET    rc         = NO_ERROR;          /* API return code */

 rc = DosLoadModule(LoadError,               /* Failure information buffer */
                    sizeof(LoadError),       /* Size of buffer             */
                    ModuleName,              /* Module to load             */
                    &ModHandle);             /* Module handle returned     */
 if (rc != NO_ERROR) {
    printf("DosLoadModule error: return code = %u\n", rc);
    return 1;
 }

 rc = DosQueryResourceSize(ModHandle,     /* Handle for DLL containing resources */
                           RT_POINTER,    /* Ask for  Pointer                    */
                           1L,            /*          with an ID of 1            */
                           &Size);        /* The resource size is returned.      */

 if (rc != NO_ERROR) {
    printf("DosGetResource error: return code = %u\n", rc);
    return 1;
 } else {
    printf("Resource is %u bytes in size.\n", Size);
 } /* endif */

return NO_ERROR;
}