Com & Sapi

[John Thompson]

Windows XP Home SP3
PowerBASIC Win 9

I used the PB COM Browser to generate an INClude file for SAPI (Microsoft Speech). When I created a small program and attemptd to compile it, it gave numerous errors in reference to undefined TYPEs. It turns out that an item within a TYPE would be TYPE (defined later in the INC). I copied and pasted these above the original TYPE and it solved that problem.

With that solved, I tried to work on the speech recognition (which I've got working in PB8), but I'm having problems with ISpeechRecoContext. It turns out that oRecoContext never obtains a value and always errors out. I tried messing around with it for an hour or two and then tried some of the other interfaces and found out they worked as expected. Can anyone advise what may be causing this? PB8 works as expected. PB9 accesses SAPI's other keywords as expected. I'm stuck.

SAPI.INC (header of SAPI.INC [created via PB COM Browser])

' Library Name: SpeechLib
' Library File: C:\Program Files\Common Files\Microsoft Shared\Speech\sapi.dll
' Description : Microsoft Speech Object Library
' GUID : {C866CA3A-32F7-11D2-9602-00C04F8EE628}
' LCID : 0
' Version : 5.0

SAPI.BAS

#COMPILE EXE
#DIM ALL

#INCLUDE "Win32API.INC"
#INCLUDE "SAPI.INC"

FUNCTION PBMAIN () AS LONG

    DIM oObjectToken    AS ISpeechObjectToken
    DIM oRecoContext    AS ISpeechRecoContext

    'Added later for testing.
    oObjectToken = NEWCOM $PROGID_SpObjectToken
    IF ISFALSE ( ISOBJECT ( oObjectToken ) ) THEN MSGBOX "oObjectToken ERROR" : EXIT FUNCTION

    'Original Interest    
    oRecoContext = NEWCOM $PROGID_SpSharedRecoContext
    IF ISFALSE ( ISOBJECT ( oRecoContext ) ) THEN MSGBOX "oRecoContext ERROR" : EXIT FUNCTION

END FUNCTION

[José Roca]

It works in my computer. If you have several versions of SAPI installed, that I don't know, maybe it is trying to use a version that has not ISpeechRecoContext implemented. Try using the version dependent ProgIDs, e.g. "SAPI.SpObjectToken.1" and "SAPI.SpInProcRecoContext.1".

[Theo Gottwald]

Aren't there such samples in the SAMPLES directory, supplied with PB 9?
They are really worth to look at!

[John Thompson]

Theo, there are, but they are related to the text to speech section of SAPI, not the speech recognition. I installed the SAPI SDK after which time the code above worked, but I had previously ran my PB 8 samples on computers I was most positive did not have the SAPI SDK installed on them.

Thanks!

-John