PureBasic Forums - English

Posted: **Thu Jun 23, 2016 1:42 pm**

Playing around with IUP library I could confirm that in most cases to get UTF-8 strings working one would have to set

IupSetGlobal("UTF8MODE",YES")

just after primary IUP toolkit initialization function:

IupOpen()

But... I was unable to get UTF8 strings working for example with IupFileDlg() function...

Also was unable to find a solution how to return string value from IupGetAttribute function.

As for positive findings - I was able to compile all libraries from source using MinGW/MinGW64 on Windows platform
to static / dynamic libraries. Looks like there is an issue using such libraries with PureBasic: if i use them - PB
could compile and create an executable file that i could run lately. But if I try to compile and run from within PureBasic
IDE it's crashing while using .dll files generated by MinGW compiler.

Posted: **Thu Jun 23, 2016 7:30 pm**

IupGetAttribute gives a pointer on a string back. The simple way is a Macro :

Code: Select all

PrototypeC  Icallback(*ih.Integer)

ImportC "iup.lib"
  IupOpen()
  IupMainLoop()
  IupClose()     
  IupButton(title.p-utf8, action.p-utf8)
  IupCbox(*handle, a=0, b=0, c=0)  ;(...)
  IupSetAttribute(*handle, name.p-utf8, value.p-utf8)
  IupSetAttributes(*handle, str.p-utf8)
  IupDialog(*handle)
  IupPopup(*handle, x.l, y.l)
  IupStoreGlobal(*name, value.p-utf8)
  IupGetGlobal(name.p-utf8)
  IupSetGlobal(name.p-utf8, value.p-utf8)
  IupGetAttribute(*ih, name.p-utf8)
  IupGetAttributes(*ih)
  IupSetCallback(ih, name.p-utf8, *func)
  IupSetFunction(*name.p-utf8, *func)
  IupDestroy(ih)
  IupMessage(t.p-utf8, msg.p-utf8)
  IupFileDlg()
  IupGetInt.l(ih, t.p-utf8)
EndImport

Procedure.s IupGetAttribute2(i, s.s)
  Protected result = IupGetAttribute(i, s)  
  Protected ss.s = Space(MemoryStringLength(result, #PB_Ascii) *2)  
  If result        
    PokeS(@ss,PeekS(result,-1,#PB_Ascii),-1,#PB_Unicode)
    ProcedureReturn ss
  EndIf  
  ProcedureReturn ""
EndProcedure

Macro IupGetAttribute(a, b)
  IupGetAttribute2(a, b)
EndMacro

#IUP_CENTER =  $FFFF
#IUP_CLOSE  =  -3

Procedure main()  
	
  IupOpen()  
  
  IupSetGlobal("UTF8AUTOCONVERT", "YES")
	IupSetGlobal("UTF8MODE","YES")
	
	filedlg = IupFileDlg()
 
	IupSetAttributes(filedlg, ~"DIALOGTYPE=SAVE, TITLE=\"File Save\", FILTER=\"*.*\", FILTERINFO=\"Bitmap Files\"")	
	
  IupPopup(filedlg, #IUP_CENTER, #IUP_CENTER)
  
  a = IupGetInt(filedlg, "STATUS")
  
  Select IupGetInt(filedlg, "STATUS")
  
    Case 1: 
      IupMessage("New file",IupGetAttribute(filedlg, "VALUE")) 
    Case 0 : 
      IupMessage("File already exists",IupGetAttribute(filedlg, "VALUE"))
    Case -1 : 
      IupMessage("IupFileDlg","Operation Canceled");
  EndSelect

  IupDestroy(filedlg)
  IupClose()
	
EndProcedure:main()

Posted: **Fri Jun 24, 2016 12:21 pm**

hallodri:

Thank you again ! Your solution works and solves issue that i mentioned.
I still do not understand why IupSetAttribute function works for IupVBox/IupCBox
container types and the same function just does not work for IupFileDlg

BTW - I've contacted developers of IUP toolkit and they said that only UTF8MODE setting
is needed for IUP to work with UTF8 strings. I as well checked that by commenting
UTF8AUTOCONVERT setting and could confirm that it's working fine with only one
global setting:

Code: Select all

IupSetGlobal("UTF8MODE","YES")

BTW: if you type a new name of the file (to make sure that it does not exist - what result you got ?
In my case unfortunately just one single char from file path displayed instead of full path name...

Posted: **Fri Jun 24, 2016 3:44 pm**

agb2008 wrote: I still do not understand why IupSetAttribute function works for IupVBox/IupCBox
container types and the same function just does not work for IupFileDlg

I did not understand. For some functions, it seems to work, while others do not.

agb2008 wrote: BTW: if you type a new name of the file (to make sure that it does not exist - what result you got ?
In my case unfortunately just one single char from file path displayed instead of full path name...

In ASCII mode? IupGetAttribute2 is only for the Unicode mode. For ASCII must extend the function:

Code: Select all

Procedure.s IupGetAttribute2(i, s.s)
  Protected result = IupGetAttribute(i, s)  
  CompilerIf #PB_Compiler_Unicode 
  Protected ss.s = Space(MemoryStringLength(result, #PB_Ascii) *2)  
  If result        
    PokeS(@ss,PeekS(result,-1,#PB_Ascii),-1,#PB_Unicode)
    ProcedureReturn ss
  EndIf  
  CompilerElse
  If result           
    ProcedureReturn PeekS(result)
  EndIf    
  CompilerEndIf
  ProcedureReturn ""
EndProcedure

Posted: **Mon Jun 27, 2016 7:48 am**

hallodri:

I've posted few additional notes in a separate forum section: http://www.purebasic.fr/english/viewtop ... 30#p490330

It seems that IupSetStrAttribute function could be used instead of IupSetAttribute for UNICODE (UTF-8) strings.

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