?? func2_3l6b.htm
字號(hào):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML DIR="LTR"><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso8859-1">
</HEAD>
<TITLE>phoneGetDevCaps</TITLE>
<SCRIPT SRC="/library/psdk/linkcss.js"></SCRIPT>
<META NAME="MS-HKWD" CONTENT="phoneGetDevCaps">
<META NAME="MS-HAID" CONTENT="_tapi2_phonegetdevcaps">
</HEAD>
<BODY TOPMARGIN="0">
<!--TOOLBAR_START-->
<!--TOOLBAR_EXEMPT-->
<!--TOOLBAR_END-->
<!--SYNC_START-->
<script language="JavaScript" src='/library/synch.js'></script>
<!--SYNC_END-->
<H1><A NAME="_tapi2_phonegetdevcaps"></A>phoneGetDevCaps</H1>
<P>The <B>phoneGetDevCaps</B> function queries a specified phone device to determine its telephony capabilities. </P>
<PRE class=syntax><B>LONG WINAPI phoneGetDevCaps(
HPHONEAPP</B><I> hPhoneApp</I><B>, </B>
<B> DWORD</B><I> dwDeviceID</I><B>, </B>
<B> DWORD</B><I> dwAPIVersion</I><B>, </B>
<B> DWORD</B><I> dwExtVersion</I><B>, </B>
<B> LPPHONECAPS</B><I> lpPhoneCaps </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hPhoneApp</I> </DT>
<DD>The handle to the application's registration with TAPI. </DD>
<DT><I>dwDeviceID</I> </DT>
<DD>The phone device to be queried. </DD>
<DT><I>dwAPIVersion</I> </DT>
<DD>The version number of the Telephony API to be used. The high-order word contains the major version number; the low-order word contains the minor version number. This number is obtained with the function <A HREF="func2_98ry.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_98ry.htm"><B>phoneNegotiateAPIVersion</B></A>. </DD>
<DT><I>dwExtVersion</I> </DT>
<DD>The version number of the service provider-specific extensions to be used. This number is obtained with the function <A HREF="func2_3d0u.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_3d0u.htm"><B>phoneNegotiateExtVersion</B></A>. It can be left zero if no device-specific extensions are to be used. Otherwise, the high-order word contains the major version number; the low-order word contains the minor version number. </DD>
<DT><I>lpPhoneCaps</I> </DT>
<DD>A pointer to a variably sized structure of type <A HREF="struc2_8rua.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_8rua.htm"><B>PHONECAPS</B></A>. Upon successful completion of the request, this structure is filled with phone device capabilities information.
</DD>
</DL>
<H4>Return Values</H4>
<P>Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are: </P>
<P>PHONEERR_INVALAPPHANDLE, PHONEERR_INVALPOINTER, PHONEERR_BADDEVICEID, PHONEERR_OPERATIONFAILED, PHONEERR_INCOMPATIBLEAPIVERSION, PHONEERR_OPERATIONUNAVAIL, PHONEERR_INCOMPATIBLEEXTVERSION, PHONEERR_NOMEM, PHONEERR_STRUCTURETOOSMALL, PHONEERR_RESOURCEUNAVAIL, PHONEERR_NODRIVER, PHONEERR_UNINITIALIZED, PHONEERR_NODEVICE.</P>
<H4>Remarks</H4>
<P>Before using <B>phoneGetDevCaps</B>, the application must negotiate the TAPI version number to use (see <A HREF="func2_98ry.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_98ry.htm"><B>phoneNegotiateAPIVersion</B></A>) and, optionally, the extension version to use (see <A HREF="func2_3d0u.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_3d0u.htm"><B>phoneNegotiateExtVersion</B></A>). </P>
<P>TAPI and extension version numbers are those under which TAPI, Telephony DLL, and service provider must operate. If version ranges do not overlap, the application and API or service-provider versions are incompatible and an error is returned. </P>
<H4><A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm \n\n這個(gè)文件不能通過 Teleport Pro 取回, 因?yàn)?地址在一個(gè)域或?yàn)樗拈_始地址設(shè)定的邊界的外部路徑上. \n\n你想從服務(wù)器打開它嗎?'))window.location='http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm'" tppabs="http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm">Requirements</A> </H4>
<P><B> Windows NT/2000: </B>Requires Windows NT 4.0 SP3 or later.<BR>
<B> Windows 95/98: </B>Requires Windows 95 or later.<BR>
<B> Version: </B>Requires TAPI 1.3 or later.<BR>
<B> Header: </B>Declared in Tapi.h.<BR>
<B> Library: </B>Use Tapi32.lib.<BR>
<B> Unicode: </B>Implemented as Unicode and ANSI versions on all platforms.</P>
<H4>See Also</H4>
<P><A HREF="quickref_1okl.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_1okl.htm">TAPI 2.2 Reference Overview</A>, <A HREF="quickref_4rub.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/quickref_4rub.htm">Supplementary Phone Service Functions</A>, <A HREF="struc2_8rua.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_8rua.htm"><B>PHONECAPS</B></A>, <A HREF="func2_98ry.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_98ry.htm"><B>phoneNegotiateAPIVersion</B></A>, <A HREF="func2_3d0u.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/func2_3d0u.htm"><B>phoneNegotiateExtVersion</B></A> </P>
<DIV CLASS="footer">Built on Monday, August 14, 2000</DIV>
<!--FOOTER_START-->
<DIV CLASS="footer" STYLE="color:#000000;font-size:90%;">
<A HREF="mailto:sdkfdbk@microsoft.com">Send feedback</A> to the Platform SDK.</P>
<P><A HREF="javascript:if(confirm('http://msdn.microsoft.com/isapi/gomscom.asp?TARGET=/info/cpyright.htm \n\n這個(gè)文件不能通過 Teleport Pro 取回, 因?yàn)?地址在一個(gè)域或?yàn)樗拈_始地址設(shè)定的邊界的外部路徑上. \n\n你想從服務(wù)器打開它嗎?'))window.location='http://msdn.microsoft.com/isapi/gomscom.asp?TARGET=/info/cpyright.htm'" tppabs="http://msdn.microsoft.com/isapi/gomscom.asp?TARGET=/info/cpyright.htm" TARGET="_top">© 1999 Microsoft Corporation. All rights reserved. Terms of use.</A></P>
</DIV>
<!--FOOTER_END-->
</BODY>
</HTML>
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -