bv->toggleSelection(false);
bv->text->
ReplaceSelectionWithString(bv, replacestring);
bv->text->
SetSelectionOverString(bv, replacestring);
bv->toggleSelection(false);
bv->text->
ReplaceSelectionWithString(bv, replacestring);
bv->text->
SetSelectionOverString(bv, replacestring);