This may be queried at a later time for applications wishing to overlay information or add new images to the loop. Sets the drawing window or pixmap for all annotation. This is useful for scripts that need to annotate on multiple pixmaps. If no image is specified, the current image is set. All subsequent lines drawn by the user will be in this color.
Valid styles are solid , dash , doubledash .
All subsequent lines drawn by the user will be in this color. Sets the marker style to style . Sets the text alignment. The alignment is a 2 character sequence that specifies horizontal and vertical alignment. The first character is horizontal which can be either l eft, c enter or r ight.