How to convert Raster Art into clipped art ...................

Dear Friends,

     I am trying to convert all path art and raster art into clipped art.

     By using below given code snippet I am able to convert all path art into clipped art but only raster art is just copying the      same image  and converting as a group.

AIArtHandle compound_path_child;

AIArtHandle h_group;

AIPathStyle style = { 0 };

sAILayer->SetCurrentLayer(layer);

sAIArt->GetArtFirstChild(firstArt, &compound_path_child);

sAIArt->NewArt(kGroupArt, kPlaceAboveAll, firstArt, &h_group);

sAIArt->ReorderArt(duplicateArt, kPlaceInsideOnTop, h_group);

sAIArt->ReorderArt(firstArt, kPlaceInsideOnTop, h_group);

style.stroke.color.kind = kThreeColor;

style.stroke.color.c.rgb.blue = 0;

style.stroke.color.c.rgb.green = 0;

style.stroke.color.c.rgb.red = 0;

style.stroke.width = 6.0f;

style.stroke.join = kAIMiterJoin;

style.stroke.cap = kAIButtCap;

style.stroke.miterLimit = 10.0f;

style.strokePaint = 1;

style.clip = 1;

sAIPathStyle->SetPathStyle(compound_path_child, &style);

sAIPathStyle->SetPathStyle(firstArt, &style);

sAIGroup->SetGroupClipped(h_group, true);

Please assist me how to convert raster art into clipped art .

Thanks in Advance.