DDEACK structure (dde.h)
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;
unsigned short usFlags;
} 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.
usFlags
Requirements
| Requirement | Value |
|---|---|
| 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
Conceptual
Reference