My first DeskLib program fails

OK, so I thought I’d post this here so anyone else can benefit if the answer is obvious (which I suspect it probably is).

I have copied bits out of one of the DeskLib example programs and applied them to my own test program but when I run make I get this in the throwback:

Processing:SDFS::HardDisc0.$.Programming.gw0024.v1.c.main
Errors in :SDFS::HardDisc0.$.AcornC/C++.!DeskLib.h.Core
    37 E differing redefinition of #define macro FALSE
    38 E differing redefinition of #define macro TRUE
    40 E differing redefinition of #define macro ERROR
    62 S type disagreement for 'os_error'
    62 E duplicate typedef 'os_error'
Errors in :SDFS::HardDisc0.$.AcornC/C++.!DeskLib.h.Wimp
   101 S type disagreement for 'wimp_colour'
   101 E duplicate typedef 'wimp_colour'
   646 S <identifier> expected but found '0' in 'enum' definition
Errors in :SDFS::HardDisc0.$.AcornC/C++.!DeskLib.h.WimpSWIs
    55 S Expecting <declarator> or <type> but found '262336'
    59 S Expecting <declarator> or <type> but found '262365'
    61 S Expecting <declarator> or <type> but found '262366'
    69 S Expecting <declarator> or <type> but found '262380'
    70 S Expecting <declarator> or <type> but found '262385'
    76 S Expecting <declarator> or <type> but found '262367'
    92 S Expecting <declarator> or <type> but found '262375'
   100 S Expecting <declarator> or <type> but found '262361'
   101 S Expecting <declarator> or <type> but found '262362'
   102 S Expecting <declarator> or <type> but found '262363'
   104 S Expecting <declarator> or <type> but found '262337'
   105 S Expecting <declarator> or <type> but found '262341'
   106 S Expecting <declarator> or <type> but found '262342'
   107 S Expecting <declarator> or <type> but found '262339'
   109 S Expecting <declarator> or <type> but found '262344'
   110 S Expecting <declarator> or <type> but found '262345'
   111 S Expecting <declarator> or <type> but found '262346'
   113 S Expecting <declarator> or <type> but found '262347'
   115 S Expecting <declarator> or <type> but found '262348'
   128 S Expecting <declarator> or <type> but found '262368'
   129 S Expecting <declarator> or <type> but found '262359'
   130 S Expecting <declarator> or <type> but found '262353'
   136 S Expecting <declarator> or <type> but found '262338'
   137 S Expecting <declarator> or <type> but found '262340'
   138 S Expecting <declarator> or <type> but found '262349'
   142 S Expecting <declarator> or <type> but found '262350'
   145 S Expecting <declarator> or <type> but found '262358'
   150 S Expecting <declarator> or <type> but found '262370'
   193 E differing redefinition of #define macro Wimp_Poll
   194 E differing redefinition of #define macro Wimp_PollIdle
   265 S Expecting <declarator> or <type> but found '262351'
   266 S Expecting <declarator> or <type> but found '262360'
   268 S Expecting <declarator> or <type> but found '262352'
   273 S Expecting <declarator> or <type> but found '262354'
   274 S Expecting <declarator> or <type> but found '262355'
   279 S Expecting <declarator> or <type> but found '262356'
   280 S Expecting <declarator> or <type> but found '262376'
   281 S Expecting <declarator> or <type> but found '262357'
   291 S Expecting <declarator> or <type> but found '262364'
   296 S Expecting <declarator> or <type> but found '262371'
   297 S Expecting <declarator> or <type> but found '262374'
   298 S Expecting <declarator> or <type> but found '262373'
   299 S Expecting <declarator> or <type> but found '262372'
   300 S Expecting <declarator> or <type> but found '262381'
   305 S Expecting <declarator> or <type> but found '262387'
   315 S Expecting <declarator> or <type> but found '262378'
   317 S Expecting <declarator> or <type> but found '262379'
   320 S Expecting <declarator> or <type> but found '262383'
Errors in :SDFS::HardDisc0.$.AcornC/C++.!DeskLib.h.KernelSWIs
   174 S Expecting <declarator> or <type> but found '35'
   203 S Expecting <declarator> or <type> but found '53'
   207 S Expecting <declarator> or <type> but found '56'
   221 S Expecting <declarator> or <type> but found '57'
   234 S Expecting <declarator> or <type> but found '39'
   247 S Expecting <declarator> or <type> but found '5'
Errors in :SDFS::HardDisc0.$.Programming.gw0024.v1.c.main
    58 W variable 'argv' declared but not used
    58 W variable 'argc' declared but not used
   102 W variable 'message' declared but not used

Looks like either:

• The same headers are being included twice, and lack any header include guards to make the 2nd inclusion a no-op
• You’ve trying to use two conflicting libraries (e.g. OSLib and DeskLib – IIRC OSLib declare an os_error type, it looks like desklib is trying to declare that type too).

The h.WimpSWIs and h.KernelSWIs errors look curious. Can you give examples of what some of those header lines look like? It might give some clues as to what the problem is.

You’ve trying to use two conflicting libraries (e.g. OSLib and DeskLib – IIRC OSLib declare an os_error type, it looks like desklib is trying to declare that type too

Yep I had a few stray includes for OSLib and SFLib from when I was playing around with Steve Fryatt’s guide to WIMP programming—I was just coming here to update you all but it seems you beat me to it!

The h.WimpSWIs and h.KernelSWIs errors look curious.

Not sure what was going on there—those errors have also disappeared.

Now the test application builds OK but I am getting an error that it can’t find a Template—where do I get/create the required template file?

Now the test application builds OK but I am getting an error that it can’t find a Template—where do I get/create the required template file?

What test application? You can create a Template file using FormEd (does that still exist?), WinEd (http://www.riscos.info/index.php/WinEd), or TemplEd (http://www.rayfavre.me.uk/Downloads/Package/Utils.zip). My preferred is TemplEd. Use anything other than FormEd. ;-)

However, you also need to call the function Resource_Initialise() passing the appname as used in the system variable, that is to say if you use MyApp$Dir then it would be “MyApp”. This is different to the application name registered with the Wimp and shown in the task manager.

What test application

The one I have written to test myself & learn the system.

I borrowed a Templates file from one of the examples and the program builds fine now. Also got a copy of WinEd and it looks interesting. Will give TempEd a try next too! :—)