DDEACK
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DDEACK structure

Contains status flags that a DDE application passes to its partner as part of the WM_DDE_ACK message. The flags provide details about the application's response to the messages WM_DDE_DATA, WM_DDE_POKE, WM_DDE_EXECUTE, WM_DDE_ADVISE, WM_DDE_UNADVISE, and WM_DDE_REQUEST.

Syntax


typedef struct {
  unsigned short bAppReturnCode  :8;
  unsigned short reserved  :6;
  unsigned short fBusy  :1;
  unsigned short fAck  :1;
} DDEACK;

Members

bAppReturnCode

Type: unsigned short

An application-defined return code.

reserved

Type: unsigned short

Reserved.

fBusy

Type: unsigned short

Indicates whether the application was busy and unable to respond to the partner's message at the time the message was received. A nonzero value indicates the partner was busy and unable to respond. The fBusy member is defined only when the fAck member is zero.

fAck

Type: unsigned short

Indicates whether the application accepted the message from its partner. A nonzero value indicates the partner accepted the message.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Dde.h (include Windows.h)

See also

Reference
WM_DDE_ACK
WM_DDE_ADVISE
WM_DDE_DATA
WM_DDE_EXECUTE
WM_DDE_REQUEST
WM_DDE_POKE
WM_DDE_UNADVISE
Conceptual
About Dynamic Data Exchange

 

 

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