DrgQueryDragitem - Example Code

This example calls the DrgQueryDragitem function to return the entirety of the first DRAGITEM structure in the given DRAGINFO structure, after which it obtains the source window handle.

#define INCL_WINSTDDRAG /* Direct Manipulation (Drag) Functions */
#include <os2.h>

BOOL      fSuccess;     /* Indicate success or failure          */
DRAGINFO  Draginfo;     /* DRAGINFO structure from which the    */
                        /* DRAGITEM structure is obtained       */
ULONG     cbBuffer;     /* Maximum number of bytes to copy      */
DRAGITEM  Dragitem;     /* Buffer into which the DRAGITEM       */
                        /* structure is copied                  */
ULONG     iItem;        /* Zero-based index of the DRAGITEM     */
                        /* to be returned                       */
HWND      hwndSource;   /* Source window handle for the drag    */

cbBuffer = sizeof(DRAGITEM); /* Copy entire DRAGITEM structure  */
iItem = 0;                   /* Return first DRAGITEM           */

fSuccess = DrgQueryDragitem(&Draginfo,cbBuffer,&Dragitem,iItem);

hwndSource = Dragitem.hwndItem;  /* Obtain source window handle */