Here is a list of all variables with links to the structures/unions they belong to:

- l -

l : dt_imageio_gallery_t
L : dt_iop_ashift_line_t, dt_iop_colorize_data_t, dt_iop_colorreconstruct_Lab_t, gtk_wrap_communication, skin_color_t
l10n : darktable_t
Lab : dt_color_checker_patch
lab : dt_colorpicker_sample_t
label : _gui_collapsible_section_t, _piwigo_album_t, dt_bauhaus_combobox_entry_t, dt_bauhaus_widget_t, dt_iop_gui_blendif_channel_t, dt_iop_gui_blendif_filter_t, dt_iop_invert_gui_data_t, dt_iop_liquify_gui_data_t, dt_iop_spots_gui_data_t, dt_lib_backgroundjob_element_t, pref_element
label1 : dt_iop_rlce_gui_data_t
label2 : dt_iop_rlce_gui_data_t
label_delta_E : dt_iop_channelmixer_rgb_gui_data_t
label_form : dt_iop_retouch_gui_data_t
label_form_selected : dt_iop_retouch_gui_data_t
label_rgb : dt_colorpicker_sample_t
label_var : dt_iop_denoiseprofile_gui_data_t
label_var_B : dt_iop_denoiseprofile_gui_data_t
label_var_G : dt_iop_denoiseprofile_gui_data_t
label_var_R : dt_iop_denoiseprofile_gui_data_t
landscape : dt_page_setup_t
languages : dt_l10n_t
last_act_on : dt_lib_metadata_t
last_button1_pressed_pos : dt_iop_liquify_gui_data_t
last_custom_iop_order : dt_lib_ioporder_t
last_drawn_lines : dt_iop_ashift_params_t
last_drawn_lines_count : dt_iop_ashift_params_t
last_expose_time : dt_control_t
last_history_hash : dt_dev_pixelpipe_t
last_hit : dt_iop_liquify_gui_data_t
last_hovered_entry : dt_map_t
last_key_time : dt_lib_tool_filter_t
last_loaded : dt_film_t
last_mouse_mods : dt_iop_liquify_gui_data_t
last_mouse_pos : dt_iop_liquify_gui_data_t
last_picked_color : dt_iop_levels_gui_data_t, dt_iop_rgblevels_gui_data_t
last_preset : dt_gui_gtk_t
last_quad_lines : dt_iop_ashift_params_t
last_selected : dt_lib_print_settings_t, dt_print_t
last_single_id : dt_selection_t
last_tag : dt_lib_tagging_t
last_x : dt_thumbtable_t
last_y : dt_lib_tagging_t, dt_thumbtable_t
lastfit : dt_iop_ashift_gui_data_t
lastpath : dt_lib_tagging_t
lastx : dt_iop_ashift_gui_data_t
lasty : dt_iop_ashift_gui_data_t
lat : _lib_location_result_t, dt_geo_map_display_point_t, dt_map_location_data_t, lr_data_t, params_fixed_t
lat1 : dt_map_box_t
lat2 : dt_map_box_t
latitude : dt_gpx_track_point_t, dt_image_geoloc_t, dt_iop_filmicrgb_gui_data_t, dt_iop_filmicrgb_params_t, dt_map_image_t, dt_variables_data_t
latitude_max : dt_iop_filmic_data_t, dt_iop_filmic_rgb_spline_t
latitude_min : dt_iop_filmic_data_t, dt_iop_filmic_rgb_spline_t
latitude_stops : dt_iop_filmic_gui_data_t, dt_iop_filmic_params_t
layer : dt_liquify_hit_t
layout : dt_iop_toneequalizer_gui_data_t
lb : _GtkDarktableResetLabel
lbl_curr_scale : dt_iop_retouch_gui_data_t
lbl_merge_from_scale : dt_iop_retouch_gui_data_t
lbl_num_scales : dt_iop_retouch_gui_data_t
Lch_origin : dt_iop_channelmixer_rgb_gui_data_t, dt_iop_exposure_gui_data_t
Lch_target : dt_iop_channelmixer_rgb_gui_data_t
leave : dt_tag_t
left : dt_dng_gain_map_t, dt_iop_filmicrgb_gui_button_data_t, dt_QRect_t, tile
legacy : dt_image_raw_parameters_t
legacy_flip : dt_image_t
legend_top_limit : dt_iop_toneequalizer_gui_data_t
length : dt_iop_ashift_line_t, dt_iop_ashift_points_idx_t, dt_selection_t, restart_cookie_t
lens : dt_gui_presets_edit_dialog_t, dt_iop_lensfun_data_t, dt_iop_lensfun_params_t, dt_thumbnail_t
lens_menu : dt_iop_lensfun_gui_data_t
lens_model : dt_iop_lensfun_gui_data_t
lens_param_box : dt_iop_lensfun_gui_data_t
lensshift_h : dt_iop_ashift_data_t, dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t, dt_iop_ashift_params1_t, dt_iop_ashift_params2_t, dt_iop_ashift_params3_t, dt_iop_ashift_params4_t, dt_iop_ashift_params_t
lensshift_h_range : dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t
lensshift_v : dt_iop_ashift_data_t, dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t, dt_iop_ashift_params1_t, dt_iop_ashift_params2_t, dt_iop_ashift_params3_t, dt_iop_ashift_params4_t, dt_iop_ashift_params_t
lensshift_v_range : dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t
level : dt_iop_lut3d_data_t
levels : dt_dev_pixelpipe_t, dt_iop_levels_data_t, dt_iop_levels_params_t, dt_iop_rgblevels_params_t
lib : _callback_param_t, darktable_t
lib_collect : dt_lib_collect_rule_t
lift : dt_iop_colorbalance_data_t, dt_iop_colorbalance_params_t
lift_b : dt_iop_colorbalance_gui_data_t
lift_factor : dt_iop_colorbalance_gui_data_t
lift_g : dt_iop_colorbalance_gui_data_t
lift_r : dt_iop_colorbalance_gui_data_t
lightness : dt_iop_channelmixer_rbg_data_t, dt_iop_channelmixer_rgb_params_t, dt_iop_colorize_gui_data_t, dt_iop_colorize_params1_t, dt_iop_colorize_params_t
lightness_spot : dt_iop_channelmixer_rgb_gui_data_t, dt_iop_exposure_gui_data_t
lighttable_accels : dt_accels_t
line : pair_t
line_height : dt_bauhaus_t, dt_iop_filmicrgb_gui_data_t, dt_iop_toneequalizer_gui_data_t
linear : dt_iop_gamma_params_t, dt_iop_profilegamma_data_t, dt_iop_profilegamma_gui_data_t, dt_iop_profilegamma_params_t
linearity : dt_iop_blurs_gui_data_t, dt_iop_blurs_params_t
linemask : dt_iop_ashift_fit_params_t
lines : dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t, update_modelines.modelines_updater_t
lines_count : dt_iop_ashift_fit_params_t, dt_iop_ashift_gui_data_t
lines_hash : dt_iop_ashift_gui_data_t
lines_in_height : dt_iop_ashift_gui_data_t
lines_in_width : dt_iop_ashift_gui_data_t
lines_version : dt_iop_ashift_gui_data_t
lines_x_off : dt_iop_ashift_gui_data_t
lines_y_off : dt_iop_ashift_gui_data_t
linetype : dt_iop_ashift_fit_params_t
link : dt_cache_entry_t
list : dt_control_t, dt_export_metadata_t, dt_thumbtable_t
list_change : dt_develop_t
list_length : dt_control_t
list_remove : dt_develop_t
list_update : dt_develop_t
listfilter : dt_lib_collect_t
liststore : dt_lib_export_metadata_t
live_samples : dt_lib_t
lmatrix : dt_iop_colorin_data_t
lmmse_gamma_in : dt_iop_demosaic_global_data_t
lmmse_gamma_out : dt_iop_demosaic_global_data_t
lmmse_refine : dt_iop_demosaic_data_t, dt_iop_demosaic_gui_data_t, dt_iop_demosaic_params_t
loa : dt_iop_colorcorrection_params_t
loader : dt_image_t
lob : dt_iop_colorcorrection_params_t
loc : dt_map_t
localedir : darktable_t
location : dt_location_draw_t
lock : dt_accels_t, dt_cache_entry_t, dt_cache_t, dt_dev_pixelpipe_cache_t, dt_import_t, dt_iop_gui_blend_data_t, dt_lib_import_t, dt_pixel_cache_entry_t, dt_slideshow_t, dt_thumbnail_t, dt_thumbtable_t
lock_acquired : dt_database_t
lock_activated : dt_lib_print_settings_t
lock_button : dt_lib_print_settings_t
lock_cursor_shape : dt_control_t
lock_offset : dt_lib_geotagging_t
locked : dt_colorpicker_sample_t, dt_shortcut_t, dt_undo_t
lockfile_data : dt_database_t
lockfile_library : dt_database_t
log : dt_control_crawler_gui_t
log_ack : dt_control_t
log_busy : dt_control_t
log_message : dt_control_t
log_message_timeout_id : dt_control_t
log_msg : dt_ui_t
log_mutex : dt_control_t
log_pos : dt_control_t
logbase : dt_iop_basecurve_gui_data_t, dt_iop_tonecurve_gui_data_t
loglogscale : dt_iop_basecurve_gui_data_t, dt_iop_tonecurve_gui_data_t
lon : _lib_location_result_t, dt_geo_map_display_point_t, dt_map_location_data_t, lr_data_t, params_fixed_t
lon1 : dt_map_box_t
lon2 : dt_map_box_t
Long : dt_introspection_field_t
longdesc : dt_confgen_value_t
longitude : dt_gpx_track_point_t, dt_image_geoloc_t, dt_map_image_t, dt_variables_data_t
low_approximation : dt_iop_shadhi_data_t, dt_iop_shadhi_params4_t, dt_iop_shadhi_params_t
lower : dt_develop_t, tile
lower_cursor : dt_iop_retouch_gui_data_t
lower_margin : dt_iop_retouch_gui_data_t
lowpass_algo : dt_iop_lowpass_data_t, dt_iop_lowpass_gui_data_t, dt_iop_lowpass_params_t
lr : lr2dt
lru : dt_cache_t
ltable : dt_iop_colisa_data_t, dt_iop_lowpass_data_t
lua_data : all_data_t
lua_state : darktable_t
luma : dt_iop_nlmeans_gui_data_t, dt_iop_nlmeans_params_t, dt_iop_nlmeans_params_v1_t, dt_nlmeans_param_t
luma_patches : dt_iop_colorbalance_gui_data_t
luma_patches_flags : dt_iop_colorbalance_gui_data_t
luminance : dt_iop_velvia_params1_t
luminance_valid : dt_iop_toneequalizer_gui_data_t
lunbounded_coeffs : dt_iop_colisa_data_t, dt_iop_lowpass_data_t
lut : dt_iop_colorin_data_t, dt_iop_colorout_data_t, dt_iop_colorzones_data_t, dt_iop_levels_data_t, dt_iop_lowlight_data_t, dt_iop_rgblevels_data_t, dt_thumbtable_t
lut_contrast : dt_iop_basicadj_data_t
lut_gamma : dt_iop_basicadj_data_t
lut_in : dt_iop_order_iccprofile_info_t
lut_inited : dt_iop_colorbalancergb_data_t
lut_out : dt_iop_order_iccprofile_info_t
lut_valid : dt_iop_toneequalizer_gui_data_t
lutname : dt_iop_lut3d_params_t
lutsize : dt_colorspaces_iccprofile_info_cl_t, dt_iop_order_iccprofile_info_t
lwmax : dt_iop_global_tonemap_gui_data_t