This example creates a list box window named "List Box" as a child of the desktop located at (0,0), of size 200x100.

#define INCL_WINWINDOWMGR             /* Window Manager Functions  */
#define INCL_WINLISTBOXES             /* List Box definitions      */
#include <os2.h>

HWND  hwnd;                           /* Cursor display window     */
ULONG ListBoxId;                      /* Window id                 */
                                      /* (supplied by application) */
ULONG flStyle;                        /* Window style              */

flStyle = WS_VISIBLE;                 /* Create window visible     */

/* Create button window */
hwnd = WinCreateWindow(HWND_DESKTOP,  /* Parent window             */
                       WC_LISTBOX,    /* Class name                */
                       "List Box",    /* Window text               */
                       flStyle,       /* Window style              */
                       0, 0,          /* Position (x,y)            */
                       200, 100,      /* Size (width,height)       */
                       NULLHANDLE,    /* Owner window              */
                       HWND_TOP,      /* Sibling window            */
                       ListBoxId,     /* Window id                 */
                       NULL,          /* Control data              */
                       NULL);         /* Pres parameters           */