Pang
22nd June 2007, 04:18
hi, I want to use multithread drawing the map ( say fill palygons) for increasing the performance ,Each thread draw a section of the map.but i get the following error:
ASSERT failure in QPaintEngine::drawPolygon: "At least one drawPolygon function must be implemented". I don't know why? Is anyone help me. Thanks.
ASSERT failure in QPaintEngine::drawPolygon: "At least one drawPolygon function must be implemented". I don't know why? Is anyone help me. Thanks.