gtk2/docs/reference/gdk-pixbuf/tmpl/creating.sgml

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Image Data in Memory

<!-- ##### SECTION Short_Description ##### -->
Creating a pixbuf from image data that is already in memory.

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  <para>
    The most basic way to create a pixbuf is to wrap an existing
    #ArtPixBuf structure with a #GdkPixbuf to add reference counting
    capabilities to it.  The gdk_pixbuf_new_from_art_pixbuf() performs
    this operation.
  </para>

  <para>
    As a convenience, you can use the gdk_pixbuf_new_from_data()
    function to wrap an existing data buffer with a #GdkPixbuf.  You
    need to specify the destroy notification function that will be
    called when the data buffer needs to be freed; this will happen
    when the pixbuf's reference count drops to zero and thus the
    #ArtPixBuf needs to be destroyed.  If you have a chunk of static
    data compiled into your application, you can pass in #NULL as the
    destroy notification function so that the data will not be freed.
  </para>

  <para>
    The gdk_pixbuf_new() function can be used as a convenience to
    create a pixbuf with an empty buffer.  This is equivalent to
    allocating a data buffer using malloc() and then wrapping it with
    gdk_pixbuf_new_from_data().  The gdk_pixbuf_new() function will
    compute an optimal rowstride so that rendering can be performed
    with an efficient algorithm.
  </para>

  <para>
    As a special case, you can use the gdk_pixbuf_new_from_xpm_data()
    function to create a pixbuf from inline XPM image data.
  </para>

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  <para>
    #ArtPixBuf
  </para>

<!-- ##### FUNCTION gdk_pixbuf_new_from_art_pixbuf ##### -->
<para>

</para>

@art_pixbuf: 
@Returns: 


<!-- ##### FUNCTION gdk_pixbuf_new ##### -->
<para>

</para>

@format: 
@has_alpha: 
@bits_per_sample: 
@width: 
@height: 
@Returns: 


<!-- ##### FUNCTION gdk_pixbuf_new_from_data ##### -->
<para>

</para>

@data: 
@format: 
@has_alpha: 
@width: 
@height: 
@rowstride: 
@dfunc: 
@dfunc_data: 
@Returns: 


<!-- ##### FUNCTION gdk_pixbuf_new_from_xpm_data ##### -->
<para>

</para>

@data: 
@Returns: <!--
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