| hpgs_bbox_st | A bounding box | 
| hpgs_bezier_clipper_alpha_cut_data_st | |
| hpgs_bezier_clipper_thin_cut_data_st | |
| hpgs_bezier_length_st | A structure for holding intermediate values for length calculations of a bezier spline | 
| hpgs_color_st | An application level RGB color | 
| hpgs_device_st | A virtual vector graphics device for the HPGL reader | 
| hpgs_device_vtable_st | A table of virtual function implementing hpgs_device  | 
| hpgs_eps_device_st | A vector graphics device for drawing to an eps file | 
| hpgs_font_cmap_code_range_st | |
| hpgs_font_cmap_data_st | |
| hpgs_font_dentry_st | A truetype font directory entry | 
| hpgs_font_glyph_data_st | |
| hpgs_font_glyph_point_st | |
| hpgs_font_glyph_ref_st | |
| hpgs_font_head_data_st | |
| hpgs_font_header_st | A truetype font header | 
| hpgs_font_hhea_data_st | |
| hpgs_font_kern_pair_st | A ttf kerning pair | 
| hpgs_font_longHorMetrics_st | |
| hpgs_font_maxp_data_st | |
| hpgs_font_post_data_st | |
| hpgs_font_st | A truetype font | 
| hpgs_font_table_entry_st | |
| hpgs_gstate_st | The vector graphics state | 
| hpgs_image_st | An abstract pixel image | 
| hpgs_image_vtable_st | A table of virtual function implementing hpgs_image  | 
| hpgs_img_clip_line_st | |
| hpgs_img_clip_seg_st | |
| hpgs_istream_st | A virtual input stream for the HPGL reader | 
| hpgs_istream_vtable_st | A table of virtual function implementing hpgs_istream  | 
| hpgs_matrix_st | A transformation matrix for 2D points | 
| hpgs_mem_istream_stream_st | |
| hpgs_mem_ostream_stream_st | |
| hpgs_ostream_st | A virtual output stream for the HPGL reader | 
| hpgs_ostream_vtable_st | A table of virtual function implementing hpgs_istream  | 
| hpgs_paint_clipper_st | A collection of scanlines for mapping paths onto images | 
| hpgs_paint_color_st | An image RGB color with an optional palette index | 
| hpgs_paint_device_st | The pixel rendering vector graphics device | 
| hpgs_paint_path_st | A stored vector path | 
| hpgs_paint_scanline_st | A scanline of the pixel renderer | 
| hpgs_palette_color_st | A screen RGB color as stored in a palette | 
| hpgs_path_point_st | A point in a stored path | 
| hpgs_plotsize_device_st | A vector graphics device for plotsize calculating | 
| hpgs_plugin_ref_st | |
| hpgs_png_image_st | |
| hpgs_point_st | A 2D point | 
| hpgs_ps_media_size_st | A structure for storing a paper size | 
| hpgs_reader_hpglcmd_rec_st | |
| hpgs_reader_pcl_bitmap_character_st | A PCL bitmap character | 
| hpgs_reader_pcl_bitmap_font_st | A PCL bitmap font | 
| hpgs_reader_pcl_palette_st | A PCL palette as used by PCL push/pop palette | 
| hpgs_reader_poly_point_st | A point in hte HPGL polygon buffer | 
| hpgs_reader_st | A HPGL interpreter | 
| hpgs_scanline_point_st | An intersection point of a path with a scanline | 
| hpgs_ttf_face_info_st | |
| hpgs_z_ostream_stream_inner_st | |
| hpgs_z_ostream_stream_st | 
 1.7.1