Shading device for a window of a motor vehicle

A shading device for a window of a motor vehicle, with a flexible sheet-like structure which is held on a winding shaft so as to be able to be wound up and unwound between a wound-up inoperative position and a stretched protective position, which winding shaft is mounted rotatably in a vehicle-mounted receiving space which is closable by a closing part which is mounted pivotably between a closed position and at least one opening position, wherein the sheet-like structure is provided at its front end region in the unwinding direction with a dimensionally stable pull-out profile which is shiftable parallel along the window by means of a drive system, wherein the closing part is forcibly controlled by means of a control mechanism between at least two different opening positions, of which a first opening position opens up an opening permitting passage of the pull-out profile, and a second opening position opens up a reduced opening which is selected to be of a size sufficient in order to permit the flexible sheet-like structure to pass through without contact.