BUG: Dictionary Receives No DIRQ_SYMBOLGRAPH Message

• Microsoft Windows for Pen Computing version 1.0

SYMPTOMS

In an application developed for Microsoft Windows for Pen Computing, the dictionary function does not receive a DIRQ_SYMBOLGRAPH message for a given recognition session.

CAUSE

Windows for Pen Computing detected an unrecognized symbol in the symbol graph.

STATUS

Microsoft has confirmed this to be a bug in Windows for Pen Computing version 1.0. We are researching this problem and will post new information here as it becomes available.

MORE INFORMATION

In the Windows for Pen Computing environment, a dictionary can be designed to process the DIRQ_SYMBOLGRAPH message. If an application specifies the RCO_SUGGEST flag in the lRcOption member of the recognition context (RC) data structure, Windows for Pen Computing sends this message to a dictionary before any other message. If an application also specifies the RCO_NOSPACEBREAK flag, the system sends the complete symbol graph to the dictionary. Unfortunately, Windows for Pen Computing scans the symbol graph for any SYV_UNKNOWN symbols before the system sends the DIRQ_SYMBOLGRAPH message to the dictionary. If the symbol graph contains a SYV_UNKNOWN symbol, no DIRQ_SYMBOLGRAPH message is sent.