e any drawing operations
have been performed on the given surface. The simplest way to do
this is to call this function immediately after creating the
surface.</p>
<div class="refsect3">
<a name="cairo-ps-surface-restrict-to-level.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<