CRect::SetRectEmpty
Torna a CRect um retângulo nulo todas as coordenadas definindo a zero.
void SetRectEmpty( ) throw( );
Exemplo
CRect rect;
rect.SetRectEmpty();
// rect is now (0, 0, 0, 0)
ASSERT(rect.IsRectEmpty());
Requisitos
Cabeçalho: atltypes.h