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The properties and methods exposed on the voice command and voice text OLE Automation objects do not provide properties or methods that you can use to select specific engine modes. When an OLE Automation object's Register method is called, it will select the current default for the site chosen. This isn't a significant limitation because applications should allow the Voice-Navigation application installed on a system to select the default voices. However, this means Visual Basic and Visual Basic for Applications (VBA) cannot be used to write a Voice-Navigation application. A similar limitation applies to the voice command and voice text OLE COM objects, however this can be overcome if the engine mode's GUID is known. The low level CLSID_SREnumerator and CLSID_TTSEnumerator objects must be used to find or enumerate a list of the modes installed on a given system. For voice command applications, a selected mode GUID can be passed in the gModeID member of the VCSITEINFO structure referenced by the pSiteInfo parameter of the IVoiceCmd::Register() function. A selected mode GUID can also be passed as the gVoice parameter of the IVCmdAttributes::SRModeSet() function. For voice text applications, a selected mode GUID can be passed in the gModeID member of the VTSITEINFO structure referenced by the pSiteInfo parameter of the IVoiceTxt::Register() function. A selected mode GUID can also be passed as the gVoice parameter of the IVTxtAttributes::TTSModeSet() function. Additional query words: SAPI VCMD VTXT
Keywords : kbmm MMSpeech |
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Last Reviewed: December 23, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |