Set Structured Field Service Condition


3270	5250	VT
Yes	Yes	Yes

The Set Structured Field Service Condition function passes the Query Reply data provided by the client application.

Note:

The client must call the Set Structured Field Service Condition function before invoking the Start Read SF function or the Write SF function.

The client sends the following message to set the condition.

PostMessage( hServerWnd,
             WM_DDE_POKE,
             hClientWnd,
             MAKELONG(hData, aSFCOND) );

where:

hData	Identifies a handle to a Windows global memory object containing: `typedef struct tagSFSERVCOND { unsigned unused:12, // unsigned fRelease:1, // unsigned fReserved:3; // int cfFormat; // Always CF_DSPTEXT WORD uBufferSize; // Buffer size of Read SF WORD uQRLength; // Length of Query Reply data char szQueryReply[1]; // Query Reply data } SFSERVCOND, FAR *lpSFSERVCOND;`
aSFCOND	Identifies the item for the Set Structured Field Service Condition function.

hData

Identifies a handle to a Windows global memory object containing:

typedef struct tagSFSERVCOND
{
 unsigned   unused:12,          //
 unsigned   fRelease:1,         //
 unsigned   fReserved:3;        //
 int        cfFormat;           // Always CF_DSPTEXT
 WORD       uBufferSize;        // Buffer size of Read SF
 WORD       uQRLength;          // Length of Query Reply data
 char       szQueryReply[1];    // Query Reply data
} SFSERVCOND, FAR *lpSFSERVCOND;

aSFCOND Identifies the item for the Set Structured Field Service Condition function.