[Hwgui-developers] A few questions from a beginner

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After having tried and success to modify dbfview, just for the fun, to
see if I was able to use hwgui, I tried to make my first program.

I have use as base a.prg, and, if the beginning seems ok, I have some
troubles about some points.
I first must say that I was a clipper porgrammer, there is a very long
time, and since, I ever have serious problem with object oriented
programation, so be cool with me :)

1) I tried to put an image in background of my window like this:

   INIT WINDOW oMainWindow MAIN TITLE "Utilitaires de généalogie" ;
     AT ox,oy SIZE 844,381 //;
     BACKGROUND BITMAP cImageDir+"acte.png"

No error, but no image (I tried also with a bmp file, and it doesn't
work too
I success using another way which isn't made for:

   @ 0,0 PANEL oBack SIZE 1250,381
   @ -30,0 OWNERBUTTON OF oBack ;
   SIZE 1250,381 ;
   BITMAP cImageDir+"acte.png" COORDINATES 0,0,0,0

2) I haven't found how to create a status bar

I have used this way, but nothing can be written from menu or buttons.
So, is there a way to do it, and are menus or toolbars able to display
something in the status bar ?

   // Status Bar
   @ 0,361 PANEL oStatus SIZE 0,20

3) is there a way not to allow to change window size ?

4) I tried to use editbox, but I failed to keep the edited value.

   @ 20,10 SAY cText01 SIZE 510, 22
   @ 20,25 EDITBOX oEdit01 CAPTION orpath    ;
        STYLE WS_DLGFRAME              ;
        SIZE 510, 26 COLOR hwg_VColor("FF0000")

5) In this box (a few similar to the one in a.prg), I have two buttons:
ok and cancel.
How to know the clicked button ?

6) My prog loaded an ini file (parameters) from within main function by
calling a function called readinit()
if the inifile is present where I test, no problem, values are talken in
the inifile.
If the inifile isn't present, I have a n error. Here is how I done:
--------------------------------------------------------------------------------------
function main

readinit()
...
return nil
---------------------------------------------------------------------------------------
function readinit
if file(ini)
   read values, and set variables (which are declared memvar and public
in main() )
else
  set variables to default values
  // call of a function to edit values and create the inifile
  IniEdit() 
endif

return nil
------------------------------------------------------------------------------------
function IniEdit

if file(GETENV("HOME")+"/harbour/ini/genetools.ini")
   inicontent=memoread(GETENV("HOME")+"/harbour/ini/genetools.ini")
else
qout(orpath)
   inicontent="[genetools]"+chr(10)+;
              "regpath="+orpath+chr(10)+;
              "gedpath="+ogpath+chr(10)+;
              "srcpath="+ospath+chr(10)+;
              "viewer="+oview+chr(10)+;
              "downloader="+oget+chr(10)+;
              "userstring="+ostring+chr(10)+;
              "pdftool="+optool+chr(10)+;
              "opentool="+oopen+chr(10)+;
              "gedtool="+ogtool+chr(10)+;
              "ad24="+oad24+chr(10)+;
              "ad27="+oad27+chr(10)+;
              "dec24="+odec24+chr(10)+;
              "dec27="+odec27+chr(10)
endif

   @ 20,10 SAY cText01 SIZE 510, 22
   @ 20,25 EDITBOX oEdit01 CAPTION orpath    ;
        STYLE WS_DLGFRAME              ;
        SIZE 510, 26 COLOR hwg_VColor("FF0000")
......
   @ 200,660 LINE LENGTH 100
   @ 120,680 BUTTON "Ok" OF oModDlg ID IDOK  ON CLICK {||UpdateIni()} ;
        SIZE 100, 32 COLOR hwg_VColor("FF0000")
   @ 280,680 BUTTON "Annuler" OF oModDlg ID IDCANCEL  ;
        SIZE 100, 32

   ACTIVATE DIALOG oModDlg
   oFont:Release()

// create the inifile
memowrit(GETENV("HOME")+"/harbour/ini/genetools.ini",inicontent,.f.)
// Call again Readinit to set the variables with new values after edition
Readinit()

return nil
---------------------------------------------------------------------------------------
When the program returns in readinit() it crashes with a segmentation error
When launching again, it's ok, so the error is when entering again in
readinit()
Is-it normal ?
I think I can avoid it, by just giving a message to launch manually
readinit() after
returning in main(), and it won't crashes, but I thought it was better
to do it automatically.

7) As a few variables are used in a few functions, I declare it as
memvar and then public in main()
It works, bet when building, I have warnings when using it.

GeneTools.prg(513) Warning W0001  Ambiguous reference 'OGET'
GeneTools.prg(514) Warning W0001  Ambiguous reference 'OSTRING'
GeneTools.prg(515) Warning W0001  Ambiguous reference 'OPTOOL'
GeneTools.prg(516) Warning W0001  Ambiguous reference 'OGTOOL'
GeneTools.prg(517) Warning W0001  Ambiguous reference 'OAD24'
....

Is-it normal or do I fail somewhere ?
I noticed that in samples, there a also such warnings.

Thanks for reading my complains, and to help me to progress in hwgui,
which is really nice, and adapted to gnome desktops.

A+

-- 
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Alain Aupeix
http://jujuland.pagesperso-orange.fr/
http://pissobi-lacassagne.pagesperso-orange.fr/
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U.buntu 12.04 | G.ramps 3.4.8-1 | H.arbour 3.2.0dev (2014-09-09 22;51) |
HbIDE (Rev.316) | Five.Linux (r138) | Hw.Gui (2285)
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