CUA FUNCTION SET
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 sf_cua_graph          Procedure allows you to define a window
 sf_cua_error_proc     Install an error handler in CUA
 sf_pcx_display        Display a PCX file in CUA
 sf_cua_filecopy       File copy function processes a COPY FILE
 sf_cua_filedelete     File delete function processes a DEL()
 sf_cua_browse         Allows the browsing of a DBF file
 sf_cua_memo_edit      A very limited version of m_edit() for CUA
 sf_cua_file_view      View a file in a pick_list() window in CUA
 sf_cua_calendar       Displays a popup calendar and select a date
 sf_win_explode        Explodes a window to the screen
 sf_cua_background     Fills the background with a CUA color
 sf_cua_check_circle   Displays the checkable font an allows user input
 sf_cua_check_box      Displays the checkable font an allows user input
 sf_cua_text_line      Display of a text line with highlight characters
 sf_cua_icon           Allows the display of an icon
 sf_cua_udf_icon       Allows the programmer to define his/her own icons
 sf_cua_pick_list      This function works identical to PICK_LIST()
 sf_cua_progress_h     Functions display a horizontal progress bar
 sf_cua_progress_v     Functions display a vertical progress bar
 sf_cua_validate       Function displays the valid_question block
 sf_cua_task_switch    Issues RUN SAVE and show "Switch" window
 sf_vertical_slide     Place a vertical sliding button on the screen
 sf_horizontal_slide   Place a horizontal sliding button on the screen
 sf_cua_back_window    Window defines are very self explainatory
 sf_cua_over_window    Window defines are very self explainatory
 sf_cua_closed_window  Window defines are very self explainatory
 sf_out_tile           Window defines are very self explainatory
 sf_in_tile            Window defines are very self explainatory
 sf_standard_font      Sets the standard IBM font set
 sf_vgacua_font        Sets the VGA font set
 sf_egacua_font        Sets the EGA font set
 sf_standard_palette   Sets the standard IBM palette
 sf_cua_palette        Sets the CUA IBM palette
 sf_load_external_font Use in place of SF_CUA_FONT() to save 10K
 sf_cua_shade_get      Displays a button on the screen
 sf_set_palette        Set the color palette
 sf_get_palette        Get the color palette
 sf_cua_button_press   Emulate a button being pressed
 sf_menu_init          Menu functions/procedures

 DISK/FILE FUNCTION SET
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 sf_isverify           Functions check the DOS verify flag
 sf_setverify          Functions to set the DOS verify flag
 sf_filesize           Returns the size of all matching files
 sf_filecount          Returns number of matching files
 sf_disable            Under DOS 5.0+ only, function will disable drive
 sf_enable             Under DOS 5.0+ only, function will enable drive

 MEMORY FUNCTION SET
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 sf_outi               Emulates the 'C' outp() function
 sf_free_scrn          Release memory allocated to a savescrn()
 sf_byte_flush         Allows the flushing of a given variable
 sf_mem_write          Memory write procedures
 sf_mem_read           Memory read procedures

 DDE FUNCTION SET
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 sf_dde_exist          DDE provide memory area which is never cleared

 MOUSE FUNCTION SET
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 sf_mexist             Returns logical .t. if there is a mouse
 sf_mlastkey           Returns the last mouse button pressed
 sf_mkey_int           Stuffs a button press
 sf_mclear_typeahead   Clears the mouse typeahead
 sf_mis_key            Returns logical if a mouse button was pressed
 sf_minkey             Returns the mouse button pressed
 sf_mhide              Hides the mouse
 sf_mshow              Shows the mouse
 sf_mopen              Initializes the CUA mouse arrow cursor
 sf_mclose             Deinitializes the CUA mouse arrow cursor
 sf_mrow               Returns the current mouse row
 sf_mcol               Returns the current mouse column
 sf_mcheck_area        Returns .t. if the mouse is in the given area
 sf_mcheckpress_area   Returns .t. if mouse pressed in given area
 sf_mdelay             Sets a delay for the mouse
 sf_mgetkey            GET_KEY() emulation, handles keyboard and mouse
 sf_mset_area          Confines the mouse to an area
 sf_mset_speed         Sets the mouse speed
 sf_mupdate_area       Disallow the mouse from a given area

 SCREEN FUNCTION SET
 ###################
 sf_curchar            Place string on screen and leave color attribute
 sf_set_intensity      Toggle between intense colors or blinking colors
 sf_read_dac           Read DAC palette registers
 sf_write_dac          Write DAC palette registers
 sf_gray_dac           Convert VGASHOW to gray scale
 sf_savescrn           Save screen function
 sf_restscrn           Rest screen function
 sf_scrntodisk         Screen save to disk
 sf_disktoscrn         Restore sreen save from disk
 sf_setvmode           Set the video mode
 sf_color_clear        Clears a screen area to the given attribute
 sf_set_true_shadow    True_shadow function
 sf_char_say           Allows a quick replacement for the replicate
 sf_fade_out           Neat fade out routine
 sf_fade_in            Neat fade in routine
 sf_menu               Very simple, non-complex menu function

 KEY FUNCTION SET
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 sf_getch              Waits and returns the ASCII character pressed
 sf_is_insert          Check for various key presses

 DISK CACHE FUNCTION SET
 #######################
 sf_pccache_installed  PC-CACHE functions

 MISC ADDITIONAL FUNCTIONS
 #########################
 sf_len                Simple LEN() replacement... FASTER!!!
 sf_dectohex           Conversions of decimal to hexidecimal
 sf_hextodec           Conversions of hexidecimal to decimal
 sf_file_verify        Returns .t. if the given file_name is valid
 sf_smallget           Small get routine
 sf_soundex            Returns a soundex string
 sf_proc_call          Allows the calling of a function without parms
 sf_encrypt            Non-standard data encrytion
 sf_decrypt            Non-standard data decrytion
 sf_get_display        Returns EGA or VGA
 sf_get_scanlines      Returns number of lines of the current display