formatcontrol.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Sat May 20 18:57:50 PDT 2000 --><TITLE>: Interface FormatControl</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT ID="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT ID="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/media/control/BufferControl.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/control/FrameGrabbingControl.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="FormatControl.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.control</FONT><BR>Interface FormatControl</H2><DL><DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../javax/media/control/TrackControl.html">TrackControl</A></DD></DL><HR><DL><DT>public interface <B>FormatControl</B><DT>extends <A HREF="../../../javax/media/Control.html">Control</A></DL><P>The <code>FormatControl</code> interfaces is implemented by objects which supports format setting.<P><DL><DT><B>Since: </B><DD>JMF 2.0</DD></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/Format.html">Format</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/control/FormatControl.html#getFormat()">getFormat</A></B>()</CODE><BR> Obtain the format that this object is set to.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/Format.html">Format</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/control/FormatControl.html#getSupportedFormats()">getSupportedFormats</A></B>()</CODE><BR> Lists the possible input formats supported by this plug-in.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/control/FormatControl.html#isEnabled()">isEnabled</A></B>()</CODE><BR> Return the state of the track.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/control/FormatControl.html#setEnabled(boolean)">setEnabled</A></B>(boolean enabled)</CODE><BR> Enable or disable the track.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/Format.html">Format</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/control/FormatControl.html#setFormat(javax.media.Format)">setFormat</A></B>(<A HREF="../../../javax/media/Format.html">Format</A> format)</CODE><BR> Sets the data format.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.Control"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface javax.media.<A HREF="../../../javax/media/Control.html">Control</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/Control.html#getControlComponent()">getControlComponent</A></CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="getFormat()"><!-- --></A><H3>getFormat</H3><PRE>public <A HREF="../../../javax/media/Format.html">Format</A> <B>getFormat</B>()</PRE><DL><DD>Obtain the format that this object is set to.<DD><DL></DL></DD><DD><DL><DT><B>Returns:</B><DD>the current format.</DL></DD></DL><HR><A NAME="setFormat(javax.media.Format)"><!-- --></A><H3>setFormat</H3><PRE>public <A HREF="../../../javax/media/Format.html">Format</A> <B>setFormat</B>(<A HREF="../../../javax/media/Format.html">Format</A> format)</PRE><DL><DD>Sets the data format. The method returns null if the format is not supported. Otherwise, it returns the format that's actually set. <p> However in some situations, returning a non-null format does not necessarily mean that the format is supported since determining the supported formats may be state dependent or simply too costly. In such cases, the setFormat call will succeed but the object may fail in another state-transition operation such as when the object is being initialized. <p> Alternatively, the getSupportedFormats method can be used to query for the list of supported formats. The resulting list can be used to screen for the valid formats before setting that on the object.<DD><DL></DL></DD><DD><DL><DT><B>Returns:</B><DD>null if the format is not supported; otherwise return the format that's actually set.</DL></DD></DL><HR><A NAME="getSupportedFormats()"><!-- --></A><H3>getSupportedFormats</H3><PRE>public <A HREF="../../../javax/media/Format.html">Format</A>[] <B>getSupportedFormats</B>()</PRE><DL><DD>Lists the possible input formats supported by this plug-in.<DD><DL></DL></DD><DD><DL><DT><B>Returns:</B><DD>an array of the supported formats</DL></DD></DL><HR><A NAME="isEnabled()"><!-- --></A><H3>isEnabled</H3><PRE>public boolean <B>isEnabled</B>()</PRE><DL><DD>Return the state of the track.<DD><DL></DL></DD><DD><DL><DT><B>Returns:</B><DD>A boolean telling whether or not the track is enabled.</DL></DD></DL><HR><A NAME="setEnabled(boolean)"><!-- --></A><H3>setEnabled</H3><PRE>public void <B>setEnabled</B>(boolean enabled)</PRE><DL><DD>Enable or disable the track.<DD><DL></DL></DD><DD><DL><DT><B>Parameters:</B><DD><CODE>enabled</CODE> - true if the track is to be enabled.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT ID="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT ID="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT ID="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT ID="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT ID="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT ID="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/media/control/BufferControl.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/control/FrameGrabbingControl.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="FormatControl.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><font size="-1"> <a href="mailto:jmf-bugs@sun.com">Submit a bug or feature</a> <br>Copyright 1999-2000 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A. 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