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<H1><A NAME="_tapi2_phonegetbuttoninfo"></A>phoneGetButtonInfo</H1>
<P>The <B>phoneGetButtonInfo</B> function returns information about the specified button. </P>
<PRE class=syntax><B>LONG WINAPI phoneGetButtonInfo(
HPHONE</B><I> hPhone</I><B>, </B>
<B> DWORD</B><I> dwButtonLampID</I><B>, </B>
<B> LPPHONEBUTTONINFO</B><I> lpButtonInfo </I>
<B>);</B></PRE>
<H4>Parameters</H4>
<DL>
<DT><I>hPhone</I> </DT>
<DD>A handle to the open phone device. </DD>
<DT><I>dwButtonLampID</I> </DT>
<DD>A button on the phone device. </DD>
<DT><I>lpButtonInfo</I> </DT>
<DD>A pointer to a variably sized structure of type <A HREF="struc2_30mq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_30mq.htm"><B>PHONEBUTTONINFO</B></A>. This data structure describes the mode and the function, and provides additional descriptive text corresponding to the button.
</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_INVALPHONEHANDLE, PHONEERR_NOMEM, PHONEERR_INVALBUTTONLAMPID, PHONEERR_RESOURCEUNAVAIL, PHONEERR_INVALPOINTER, PHONEERR_OPERATIONFAILED, PHONEERR_INVALPHONESTATE, PHONEERR_STRUCTURETOOSMALL, PHONEERR_OPERATIONUNAVAIL, PHONEERR_UNINITIALIZED.</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_30mq.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/struc2_30mq.htm"><B>PHONEBUTTONINFO</B></A></P>
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