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<td align="LEFT" valign="TOP"> <span class="STRUCTNAME">points</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GnomeCanvasPoints*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Points in the line </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gchar*</span> </td> <td align="LEFT" valign="TOP"> Write-only </td> <td align="LEFT" valign="TOP"> Fill color; string for <tt class="FUNCTION"> gdk_color_parse()</tt> </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color_gdk</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkColor*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Fill color; specified as already-allocated <span class="STRUCTNAME">GdkColor</span> </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color_rgba</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">guint32</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Fill color; specified as 32-bit value packing red, green, blue, and alpha into bytes 1, 2, 3, and 4; alpha of 255 is opaque, 0 is invisible </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_stipple</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkBitmap*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Stipple to use when drawing line; GDK mode only </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">width_pixels</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">guint</span> </td> <td align="LEFT" valign="TOP"> Write-only </td> <td align="LEFT" valign="TOP"> Width of the line, in pixels (independent of zoom) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">width_units</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">double</span> </td> <td align="LEFT" valign="TOP"> Write-only </td> <td align="LEFT" valign="TOP"> Width of the line, in canvas units; pixel width changes with zoom factor (pixels per unit) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">cap_style</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkCapStyle</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Cap style (GDK mode only) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">join_style</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkJoinStyle</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Join style (GDK mode only) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">line_style</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkLineStyle</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Line style (GDK mode only) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">first_arrowhead</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gboolean</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Whether to put an arrowhead at the start of the line </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">last_arrowhead</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gboolean</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Whether to put an arrowhead at the end of the line </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">smooth</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gboolean</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Whether to smooth the line using parabolic splines </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">spline_steps</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">guint</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Number of steps to use when rendering curves </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">arrow_shape_a</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">double</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Length of arrowhead </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">arrow_shape_b</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">double</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Length of arrowhead edges (tip to trailing points) </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">arrow_shape_c</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">double</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Width of arrowhead </td> </tr> </table> </div> </div> <div class="SECT2"> <h2 class="SECT2"> <a name="SEC-CANVASPOLYGON">Polygon Item</a> </h2> <p> <span class="STRUCTNAME">GnomeCanvasPolygon</span> represents a filled polygon; it can be filled or only an outline. Unlike <span class="STRUCTNAME"> GnomeCanvasRE</span>, an unfilled <span class= "STRUCTNAME">GnomeCanvasPolygon</span> is not "hollow"; the transparent portion in the center is part of the canvas item. <span class="STRUCTNAME"> GnomeCanvasLine</span> is used for "hollow" polygons. </p> <div class="TABLE"> <a name="TAB-GNOME-CANVAS-POLY"></a> <p> <b>Table 3. <span class="STRUCTNAME"> GnomeCanvasPolygon</span> Arguments</b> </p> <table border="1" bgcolor="#E0E0E0" cellspacing="0" cellpadding="4" class="CALSTABLE"> <tr> <th align="LEFT" valign="TOP"> Name </th> <th align="LEFT" valign="TOP"> Type </th> <th align="LEFT" valign="TOP"> Read/Write </th> <th align="LEFT" valign="TOP"> Description </th> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">points</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GnomeCanvasPoints*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Points in the polygon </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gchar*</span> </td> <td align="LEFT" valign="TOP"> Write-only </td> <td align="LEFT" valign="TOP"> Fill color; string for <tt class="FUNCTION"> gdk_color_parse()</tt>, or <span class= "STRUCTNAME">NULL</span> for transparent </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color_gdk</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkColor*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Fill color; specified as already-allocated <span class="STRUCTNAME">GdkColor</span> </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">fill_color_rgba</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">guint32</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Fill color; specified as 32-bit value packing red, green, blue, and alpha into bytes 1, 2, 3, and 4; alpha of 255 is opaque, 0 is invisible </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">outline_color</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">gchar*</span> </td> <td align="LEFT" valign="TOP"> Write-only </td> <td align="LEFT" valign="TOP"> Outline color; string for <tt class="FUNCTION"> gdk_color_parse</tt>, or <span class="STRUCTNAME"> NULL</span> for transparent </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">outline_color_gdk</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">GdkColor*</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Outline color; specified as already-allocated <span class="STRUCTNAME">GdkColor</span> </td> </tr> <tr> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">outline_color_rgba</span> </td> <td align="LEFT" valign="TOP"> <span class="STRUCTNAME">guint32</span> </td> <td align="LEFT" valign="TOP"> Both </td> <td align="LEFT" valign="TOP"> Outline color; specified as 32-bit value packing red, green, blue, and alpha into bytes 1, 2, 3, and 4; alpha of 255 is opaque, 0 is invisible </td>?? 快捷鍵說明
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