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Size Management
<
table align=center
cellspacing=5 cellpadding=0 border=0>
<
p>When creating a new
face object (e.g., with <
a href="ft2-base_interface.html#FT_New_Face">FT_New_Face<
/a>
), an <
a href="ft2-base_interface.html#FT_Size">FT_Size<
/a>
object is automatically created and used to store all pixel-
size dependent information, available in the ‘face->size’ field.<
/p>
<
p>It is however possible to create more sizes
for a given
face, mostly in order to manage several character pixel sizes of the same font family and
style. See <
a href="ft2-sizes_management.html#FT_New_Size">FT_New_Size<
/a> and <
a href="ft2-sizes_management.html#FT_Done_Size">FT_Done_Size<
/a>.<
/p>
<
p>Note that <
a href="ft2-base_interface.html#FT_Set_Pixel_Sizes">FT_Set_Pixel_Sizes<
/a> and <
a href="ft2-base_interface.html#FT_Set_Char_Size">FT_Set_Char_Size<
/a> only modify the contents of the current ‘active’
size; you thus need to use <
a href="ft2-sizes_management.html#FT_Activate_Size">FT_Activate_Size<
/a> to change it.<
/p>
<
p>
99% of applications won
't need the functions provided here, especially if they use the caching sub-system, so be cautious when using these.</p>
</td></tr></table><br>
<table align=center width="75%"><tr><td>
<h4><a name="FT_New_Size">FT_New_Size</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_SIZES_H (freetype/ftsizes.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_New_Size</b>( <a href="ft2-base_interface.html#FT_Face">FT_Face</a> face,
<a href="ft2-base_interface.html#FT_Size">FT_Size</a>* size );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Create a new size object from a given face object.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>face</b></td><td>
<p>A handle to a parent face object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>asize</b></td><td>
<p>A handle to a new size object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>You need to call <a href="ft2-sizes_management.html#FT_Activate_Size">FT_Activate_Size</a> in order to select the new size for upcoming calls to <a href="ft2-base_interface.html#FT_Set_Pixel_Sizes">FT_Set_Pixel_Sizes</a>, <a href="ft2-base_interface.html#FT_Set_Char_Size">FT_Set_Char_Size</a>, <a href="ft2-base_interface.html#FT_Load_Glyph">FT_Load_Glyph</a>, <a href="ft2-base_interface.html#FT_Load_Char">FT_Load_Char</a>, etc.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Done_Size">FT_Done_Size</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_SIZES_H (freetype/ftsizes.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Done_Size</b>( <a href="ft2-base_interface.html#FT_Size">FT_Size</a> size );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Discard a given size object. Note that <a href="ft2-base_interface.html#FT_Done_Face">FT_Done_Face</a> automatically discards all size objects allocated with <a href="ft2-sizes_management.html#FT_New_Size">FT_New_Size</a>.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>size</b></td><td>
<p>A handle to a target size object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Activate_Size">FT_Activate_Size</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_SIZES_H (freetype/ftsizes.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Activate_Size</b>( <a href="ft2-base_interface.html#FT_Size">FT_Size</a> size );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Even though it is possible to create several size objects for a given face (see <a href="ft2-sizes_management.html#FT_New_Size">FT_New_Size</a> for details), functions like <a href="ft2-base_interface.html#FT_Load_Glyph">FT_Load_Glyph</a> or <a href="ft2-base_interface.html#FT_Load_Char">FT_Load_Char</a> only use the one which has been activated last to determine the ‘current character pixel size’.</p>
<p>This function can be used to ‘activate’ a previously created size object.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>size</b></td><td>
<p>A handle to a target size object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>If ‘face’ is the size's parent
face object, this function changes the
value of ‘face->size’ to the input
size handle.<
/p>