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📁 DirectFB的使用手册 DirectFB——建立在framebuffer基础之上的图形加速引擎
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<HTML><STYLE>  <!--    A{textdecoration:none}  --></STYLE><STYLE type="text/css">  A:link, A:visited, A:active { text-decoration: none; }</STYLE><HEAD>  <TITLE>IDirectFBDisplayLayer [DirectFB Reference Manual]</TITLE></HEAD><BODY bgcolor=#FFFFFF link=#0070FF vlink=#0070FF text=#404040><TABLE width=100% bgcolor=black border=0 cellspacing=1 cellpadding=3>  <TR><TD width=30%>    <A href="http://www.directfb.org"><IMG border=0 src="directfb.png"></A>  </TD><TD align=right>    &nbsp;&nbsp;    <A href="index.html"><FONT size=+3 color=white>Reference Manual - 0.9.25</FONT></A>  </TD></TR>  <TR><TD colspan=2 align=center bgcolor=#303030>    <TABLE border=0 cellspacing=0 cellpadding=0>      <TR><TD nowrap align=right width=50%>        <BIG><A href="index.html"><FONT color=#DDDDDD>DirectFB Interfaces</FONT></A>&nbsp;</BIG>      </TD><TD nowrap align=left width=50%>        <BIG><FONT color=orange>&nbsp;IDirectFBDisplayLayer</FONT></BIG>      </TD></TR>    </TABLE>  </TD></TR></TABLE><p style="margin-left:3%; margin-right:3%;">      <i>No summary yet...</i></p><P>  <CENTER><TABLE width=93% border=1 rules=groups cellpadding=2 cellspacing=0>    <THEAD>      <TR><TH colspan=3>Methods of IDirectFBDisplayLayer</TH></TR>    </THEAD>    <TBODY>    <TR><TD valign=top>      <B><SMALL>Information </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetID.html">      <B>GetID</B></A>    </TD><TD valign=top>       Get the unique layer ID.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetDescription.html">      <B>GetDescription</B></A>    </TD><TD valign=top>       Get a description of this display layer, i.e. the capabilities.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetSourceDescriptions.html">      <B>GetSourceDescriptions</B></A>    </TD><TD valign=top>       Get a description of available sources.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetCurrentOutputField.html">      <B>GetCurrentOutputField</B></A>    </TD><TD valign=top>       For an interlaced display, this returns the currently inactive field: 0 for the top field, and 1 for the bottom field.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Interfaces </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetSurface.html">      <B>GetSurface</B></A>    </TD><TD valign=top>       Get an interface to layer's surface.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetScreen.html">      <B>GetScreen</B></A>    </TD><TD valign=top>       Get an interface to the screen to which the layer belongs.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Configuration </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetCooperativeLevel.html">      <B>SetCooperativeLevel</B></A>    </TD><TD valign=top>       Set cooperative level to get control over the layer or the windows within this layer.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetConfiguration.html">      <B>GetConfiguration</B></A>    </TD><TD valign=top>       Get current layer configuration.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_TestConfiguration.html">      <B>TestConfiguration</B></A>    </TD><TD valign=top>       Test layer configuration.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetConfiguration.html">      <B>SetConfiguration</B></A>    </TD><TD valign=top>       Set layer configuration.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Layout </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetScreenLocation.html">      <B>SetScreenLocation</B></A>    </TD><TD valign=top>       Set location on screen as normalized values.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetScreenPosition.html">      <B>SetScreenPosition</B></A>    </TD><TD valign=top>       Set location on screen in pixels.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetScreenRectangle.html">      <B>SetScreenRectangle</B></A>    </TD><TD valign=top>       Set location on screen in pixels.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Misc Settings </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetOpacity.html">      <B>SetOpacity</B></A>    </TD><TD valign=top>       Set global alpha factor for blending with layer(s) below.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetSourceRectangle.html">      <B>SetSourceRectangle</B></A>    </TD><TD valign=top>       Set the source rectangle.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetFieldParity.html">      <B>SetFieldParity</B></A>    </TD><TD valign=top>       For an interlaced display, this sets the field parity. field: 0 for top field first, and 1 for bottom field first.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetSrcColorKey.html">      <B>SetSrcColorKey</B></A>    </TD><TD valign=top>       Set the source color key.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetDstColorKey.html">      <B>SetDstColorKey</B></A>    </TD><TD valign=top>       Set the destination color key.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Z Order </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetLevel.html">      <B>GetLevel</B></A>    </TD><TD valign=top>       Get the current display layer level.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetLevel.html">      <B>SetLevel</B></A>    </TD><TD valign=top>       Set the display layer level.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Background handling </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetBackgroundMode.html">      <B>SetBackgroundMode</B></A>    </TD><TD valign=top>       Set the erase behaviour for windowstack repaints.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetBackgroundImage.html">      <B>SetBackgroundImage</B></A>    </TD><TD valign=top>       Set the background image for the imaged background mode.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetBackgroundColor.html">      <B>SetBackgroundColor</B></A>    </TD><TD valign=top>       Set the color for a solid colored background.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Color adjustment </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetColorAdjustment.html">      <B>GetColorAdjustment</B></A>    </TD><TD valign=top>       Get the layers color adjustment.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetColorAdjustment.html">      <B>SetColorAdjustment</B></A>    </TD><TD valign=top>       Set the layers color adjustment.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Windows </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_CreateWindow.html">      <B>CreateWindow</B></A>    </TD><TD valign=top>       Create a window within this layer given a description of the window that is to be created.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetWindow.html">      <B>GetWindow</B></A>    </TD><TD valign=top>       Retrieve an interface to an existing window.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Cursor handling </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_EnableCursor.html">      <B>EnableCursor</B></A>    </TD><TD valign=top>       Enable/disable the mouse cursor for this layer.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_GetCursorPosition.html">      <B>GetCursorPosition</B></A>    </TD><TD valign=top>       Returns the x/y coordinates of the layer's mouse cursor.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_WarpCursor.html">      <B>WarpCursor</B></A>    </TD><TD valign=top>       Move cursor to specified position.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetCursorAcceleration.html">      <B>SetCursorAcceleration</B></A>    </TD><TD valign=top>       Set cursor acceleration.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetCursorShape.html">      <B>SetCursorShape</B></A>    </TD><TD valign=top>       Set the cursor shape and the hotspot.    </TD></TR>    <TR><TD valign=top>      <B><SMALL></SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_SetCursorOpacity.html">      <B>SetCursorOpacity</B></A>    </TD><TD valign=top>       Set the cursor opacity.    </TD></TR>    <TR><TD valign=top>      <B><SMALL>Synchronization </SMALL></B>    </TD><TD valign=top>      <A href="IDirectFBDisplayLayer_WaitForSync.html">      <B>WaitForSync</B></A>    </TD><TD valign=top>       Wait for next vertical retrace.    </TD></TR>    </TBODY>  </TABLE></CENTER></P></BODY></HTML>
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