Help on compiling a C program which uses TK library

Help on compiling a C program which uses TK library

[Y. Ahmet Sekercioglu]

	Dear All,

	When I attempt to compile a C program using tk function
calls, I get this problem:

	In tk.h there is 
	
	#include <X11/Xlib.h>

	and preprocessor can't find this include file. I searched the
cygnus directories, this file does not exist in the distribution. What
would be wrong?

	Any help would be much appreciated... 
	

===Y. Ahmet Sekercioglu (ASekerci@swin.edu.au)=====IP phone:============
   School of Information Technology                yas.csse.swin.edu.au
   Swinburne University of Technology              tel: +61-3-92148942
===PO Box 218, Hawthorn, 3122 Vic. Australia=======fax: +61-3-98190823==

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Re: Help on compiling a C program which uses TK library

[Arlindo da Silva]

> 
> 	When I attempt to compile a C program using tk function
> calls, I get this problem:
> 
> 	In tk.h there is 
> 	
> 	#include <X11/Xlib.h>
> 
> 	and preprocessor can't find this include file. I searched the
> cygnus directories, this file does not exist in the distribution. What
> would be wrong?
> 


The X11 libraries do NOT come with cdk.exe; you need to download it
from:

   ftp://niteroi.gsfc.nasa.gov/pub/win32/X11R6.3

You will need an X server as well to run X programs.  Please see the README
file.

-- 
Arlindo da Silva    
dasilva@alum.mit.edu


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Re: Help on compiling a C program which uses TK library

[Mumit Khan]

Arlindo da Silva <arlindo@niteroi.gsfc.nasa.gov> writes:
> 
> 
> The X11 libraries do NOT come with cdk.exe; you need to download it
> from:
> 
>    ftp://niteroi.gsfc.nasa.gov/pub/win32/X11R6.3
> 
> You will need an X server as well to run X programs.  Please see the README
> file.
> 

Actually, you don't need Xlib for Tk. Tk emulates a subset of X
functionality under Windows to get things going. The poster missed
the X11 headers in the Tk distribution (and the xlib emulation is 
already in Tk DLL, either as provided by Sun or built locally by
MSVC or BC).

Of course, this means that the portable Tk extensions don't use
X11 stuff that is not in the emulation (eg., allocating read-write
color cells, which lots of programs assume are available, or 
XWindowGetAttributes, or XClearWindow, or ...). Look in the stubs.c
in the tk8.0/win directory to see which calls Tk doesn't have
emulation for or can be emulated by equivalent Tk calls.

Regards,
Mumit -- khan@xraylith.wisc.edu
http://www.xraylith.wisc.edu/~khan/
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