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<H1><A NAME="_tapi2_phonegetlamp"></A>phoneGetLamp</H1>
<P>The <B>phoneGetLamp</B> function returns the current lamp mode of the specified lamp. </P>
<PRE class=syntax><B>LONG WINAPI phoneGetLamp(
HPHONE</B><I> hPhone</I><B>, </B>
<B> DWORD</B><I> dwButtonLampID</I><B>, </B>
<B> LPDWORD</B><I> lpdwLampMode </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>The identifier of the lamp to be queried. </DD>
<DT><I>lpdwLampMode</I> </DT>
<DD>A pointer to a memory location that holds the lamp mode status of the given lamp. This parameter uses one and only one of the <A HREF="constnts_5i43.htm" tppabs="http://msdn.microsoft.com/library/psdk/tapi22/constnts_5i43.htm">PHONELAMPMODE_ Constants</A>.
</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_UNINITIALIZED, PHONEERR_OPERATIONUNAVAIL.</P>
<H4>Remarks</H4>
<P>Phone sets that have multiple lamps per button should be modeled using multiple button/lamp pairs. Each extra button/lamp pair should use a DUMMY button. </P>
<H4><A HREF="javascript:if(confirm('http://msdn.microsoft.com/library/psdk/sdkintro/guide_927n.htm \n\n這個文件不能通過 Teleport Pro 取回, 因為 地址在一個域或為它的開始地址設定的邊界的外部路徑上. \n\n你想從服務器打開它嗎?'))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.</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> </P>
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