DdeKeepStringHandle

The DdeKeepStringHandle function increments the usage count associated with the specified handle. This function enables an application to save a string handle passed to the application's dynamic data exchange (DDE) callback function. Otherwise, a string handle passed to the callback function is deleted when the callback function returns. This function should also be used to keep a copy of a string handle referenced by the CONVINFO structure returned by the DdeQueryConvInfo function.

BOOL DdeKeepStringHandle(
  DWORD idInst,  // instance identifier
  HSZ hsz        // handle to string
);
 

Parameters

idInst

Specifies the application instance identifier obtained by a previous call to the DdeInitialize function.

hsz

Handle to the string handle to be saved.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in ddeml.h.
  Import Library: Use user32.lib.

See Also

Dynamic Data Exchange Management Library Overview, Dynamic Data Exchange Management Functions, CONVINFO, DdeCreateStringHandle, DdeFreeStringHandle, DdeInitialize, DdeQueryConvInfo, DdeQueryString