Start Mouse Input Intercept

3270	5250	VT
Yes	Yes	Yes

The Start Mouse Input Intercept function allows a client application to intercept mouse input when a terminal operator press the mouse button on emulator session window. After calling this function, the client receives DATA messages that include the PS position where mouse input occurred.

The client sends the following command to begin to intercept the mouse input.

PostMessage( hServerWnd,
             WM_DDE_ADVISE,
             hClientWnd,
             MAKELONG(hOptions, aMOUSE) );

where:

hOptions

Is a handle to a Windows global memory object, with the following structure:

typedef struct tagOPTIONS
{
 unsigned reserved:14;        // Reserved
 unsigned fDeferUpd:1;        // Send notification only
 unsigned fAckReq:1;          // Client will ACK all notices
 WORD     cfFormat;           // Clipboard format to use
}  OPTIONS, FAR *lpOPTIONS;

If the value of fDeferUpd is 1, DDE Data messages will be sent to the client application with the hData set to NULL. The client must then issue a DDE REQUEST to request the data item.

If the value of fAckReq is 1, the server does not notify the client of further structured field data until the server receives an ACK message from the client in response to any previous notification.

The cfFormat field specifies the format to send the data item has been updated.

aMOUSE Identified MOUSE as the item.