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Date:Mon Sep 8 09:30:20 1993 
Subject:XFontstruct & Saved images 
From:"K.Richards" (Kevin Richards [METOFF]) 
Volume-ID:930908.01 

 Hi,
 	I've recently been trying to use saved images with X-windows.
 	I am having trouble with the font handling routines, suppose I make a saved
 	image with 
 
 		pop11 %nort mkimage something popxlib xlib XFonts
 
 	when I try to load a font it executes ok, but the XCharStruct's seem to be
 	garbaged  
 
 
 vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
 	
 kr1 [298]   pop11 +something %x
 
 
 Sussex POPLOG (Version 14.2 Wed Feb  3 12:46:18 GMT 1993)
 
 Setpop
 : XLoadQueryFont(XptDefaultDisplay, '8x16') -  font;
 ;;; DECLARING VARIABLE font
 : font = 
 ** <pointer to XFontStruct  
 : font(0);
 : = 
 ** Anonymous struct
         ext_data -          <external_ptr 
         fid -               23068675
         direction -         0
         min_char_or_byte2 - 0
         max_char_or_byte2 - 255
         min_byte1 -         0
         max_byte1 -         0
         all_chars_exist -   1
         default_char -      32
         n_properties -      19
         properties -        <pointer to XFontProp 
         
 <<<<<<< Access Violation: PC = 0038A604, Addr = 0037E4A8, Code = 4        
 
 min_bounds -        
 ;;; MISHAP - serr: MEMORY ACCESS VIOLATION (attempt to alter non-writeable
          system structure?)
 ;;; DOING    :  sysprmishap mishap min_bounds apply struct_field_access
          Printstruct syspr spr appdata =  <false  sysEXECUTE pop11_exec_stmnt_
         seq_to sysCOMPILE pop11_comp_stream compile pop_setpop_compiler
          setpop 
 
 
 vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
 
 
 the other pointers to structures seem okay, but the nested XCharStruct structures
 both seem haywire.
 
 What Can I Do ...................?????
 
 	Thanks in advance
 	Answers on a very big postcard ....
 
 
  ____________________________________________________________________
  Kevin Richards                              K.Richards@reading.ac.uk        

                University of Reading, Whiteknights, 
                       Reading, Berkshire, Uk

                    Phone +44 734 875123 ext 7642