RMAT_INVALID</p></td>
<td class="enum_member_description">
<p>no such format exists or is supported.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="CAIRO-FORMAT-ARGB32:CAPS"></a>CAIRO_FORMAT_ARGB32</p></td>
<td class="enum_member_description">
<p>each pixel is a 32-bit quantity, with
  alpha in the upper 8 bits, then red, then green, then blue.
  The 32-bit quantities are stored native-endian. Pre-multiplied
  alpha is used. (That is, 50% transparen