This function loads a message from a resource, copies the message to the specified buffer, and appends a terminating null character.

#define INCL_WINWINDOWMGR /* Or use INCL_WIN, INCL_PM, */
#include <os2.h>

HAB        hab;      /*  Anchor-block handle. */
HMODULE    hmodMod;  /*  Module handle. */
ULONG      ulId;     /*  Message identifier. */
LONG       lcchMax;  /*  Specifies the size of buffer. */
PSZ        pBuffer;  /*  Points to the buffer that receives the message. */
LONG       lLength;  /*  The length of the string returned. */

lLength = WinLoadMessage(hab, hmodMod, ulId,
            lcchMax, pBuffer);