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problem with api-call

 
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attreus
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Joined: 30 Jul 2002
Posts: 46
Location: Berlin/Germany

PostPosted: Fri Nov 03, 2006 10:32 am    Post subject: problem with api-call Reply with quote

hi,

i'm trying to evaluate the text of an item in a listbox using LB_GETTEXT.
in the api-helpfile it is message-number $0189, but it always returns the number of characters like LB_GETTEXTLEN ($018A) does. either the message-number is not correct or i'm doing something wrong.

here is a code-snippet:


Code:



:timer

  %X = @diff(@mousepos(X),@winpos(~list1,L))
  %Y = @diff(@mousepos(Y),@winpos(~list1,T))

            #        LB_ITEMFROMPOINT                 
  %%index = @sendmsg(~LIST1,$01A9,0,@makelparam(%X,%Y))

  if @not(@greater(%%index,@count(list1)))
                #        LB_GETTEXTLEN         

    %%TextLen = @sendmsg(~LIST1,$018A,%%index,0)
 
             #        LB_GETTEXT                             
    %%item = @sendmsg(~LIST1,$0189,%%index,@STRBUF(@succ(%%TextLen)))

    dialog set,text,Item: %%index - %%item

   else
    dialog set,text,Item:
  end

  goto evloop





functions:


Code:



:MakeLPARAM

  %R = @fmul(%2,65536)
  %R = @fadd(%R,%1)

 exit %R


:strbuf

  if %1
    %S = @fill(%1)@chr(0)
   else
    %S = @fill(256)@chr(0)
  end
  %R = @addr("%S")

 exit %R





would be great, if someone of you could help me.
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jules
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Joined: 14 Sep 2001
Posts: 1043
Location: Cumbria, UK

PostPosted: Fri Nov 03, 2006 2:08 pm    Post subject: Reply with quote

The message is working correctly. According to MSDN the result is the length of the returned string, in chars. LParam is a pointer to the buffer that will receive the string.

What you need to do is use @FILL to create a string %S long enough to hold the string, and then pass its address in the LParam argument using @ADDR("%S").

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attreus
Valued Newbie


Joined: 30 Jul 2002
Posts: 46
Location: Berlin/Germany

PostPosted: Fri Nov 03, 2006 2:55 pm    Post subject: Reply with quote

thank you jules,

i just found out by myself wat's wrong.
i expected the string in the returnvalue, not in the buffer itself. sometimes i'm sitting with my ass on my eyes Embarassed

so now it is:


Code:


 #               LB_GETTEXT                                   
    %i = @fill(@sum(%%TextLen,2))
    %%item = @sendmsg(~LIST1,$0189,%%index,@addr("%i"))

    %%item = %i

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SnarlingSheep
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PostPosted: Fri Nov 03, 2006 4:25 pm    Post subject: Reply with quote

It would be easier to use:
Code:

%%item = @item(LIST1,%%index)

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attreus
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Joined: 30 Jul 2002
Posts: 46
Location: Berlin/Germany

PostPosted: Fri Nov 03, 2006 5:29 pm    Post subject: Reply with quote

of course, but then the item gets selected.
this routine is for a tooltip on single listboxitems and no clickevent
should be generated.

greetings

attreus
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SnarlingSheep
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PostPosted: Fri Nov 03, 2006 5:34 pm    Post subject: Reply with quote

Ah, I see.
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jwfv
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PostPosted: Fri Nov 03, 2006 8:25 pm    Post subject: Reply with quote

By the way - what does your code do? Gives a tip event based on which list item the cursor is near? If so, I didn't know VDS could do that, even using API calls.
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attreus
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Joined: 30 Jul 2002
Posts: 46
Location: Berlin/Germany

PostPosted: Fri Nov 03, 2006 10:09 pm    Post subject: working example of tooltip on listbox-items Reply with quote

.
here is a working example, i hope some of you will find it useful too:

Code:


Title ToolTipTest by attreus

#define Function,Wrap
#define Function,MakeLPARAM
#define Command,ToolTip

option decimalsep,"."

  DIALOG CREATE,New Dialog,-1,0,240,170,class ToolTipTest,notitle
  dialog add,TEXT,Text,140,20,,,Index:
  DIALOG ADD,LIST,LIST1,20,20,200,100,,click,dblclick
  dialog add,button,exit,136,170,50,22,Exit
  DIALOG SHOW
 
  list loadtext,list1
"Bitte laut sprechen....
"
"Englisch für Anfänger:
"
"... Drei Hexen schauen sich drei Swatch Uhren an. Welche Hexe schaut welche Swatch Uhr an?
"
"Und nun das Ganze in englischer Sprache!
"
"... Three witches watch three swatch watches. Which witch watches which swatch watch?
"
"
"Englisch für Fortgeschrittene:
"
"... Drei geschlechtsumgewandelte Hexen schauen sich drei Swatch Uhrenknöpfe an. Welche geschlechtsumgewandelte Hexe schaut sich welchen Swatch Uhrenknopf an?
"
"...das Ganze wieder in englischer Sprache !
"
"... Three switched witches watch three Swatch watch switches. Which switched witch watches which Swatch watch switch?
"
"
"Englisch im Endstadium:
"
"Drei Schweizer Hexen-Schlampen, die sich wünschen geschlechtsumgewandelt zu sein, schauen sich schweizer Swatch Uhrenknöpfe an. Welche schweizer Hexen-Schlampe, die sich wünscht geschlechtsumgewandelt zu sein, schaut sich welche schweizer Swatch Uhrenknöpfe an?
"
"...das ganze in Englisch:
"
"... Three swiss witch-bitches, which wished to be switched swiss witch-bitches, wish to watch three swiss Swatch watch switches. Which swiss witch-oops which wishes to be a switched swiss witch-oops, wishes to watch which swiss Swatch watch switch?

  %%List1 = @winexists(~List1)

:Evloop
  wait event,0.1
  goto @event()
 
:timer

  %X = @diff(@mousepos(X),@winpos(%%List1,L))
  %Y = @diff(@mousepos(Y),@winpos(%%List1,T))

            #        LB_ITEMFROMPOINT                 
  %%LPARAM = @makelparam(%X,%Y)
  %%index = @sendmsg(%%List1,$01A9,0,%%LPARAM)
 
  if @not(@greater(%%index,@count(List1)))

                #        LB_GETTEXTLEN         
    %%TextLen = @sendmsg(%%List1,$018A,%%index,0)
 
             #        LB_GETTEXT                       
    %I = @fill(@sum(%%TextLen,2))
    %%item = @sendmsg(%%List1,$0189,%%index,@addr("%I"))

    %%item = %I
    if @greater(@len(%%item),38)
      tooltip %%item,@mousepos(x),@mousepos(y)
    end
    dialog set,text,Index: %%index
   else
    dialog set,text,Index:
  end

  goto evloop

:list1dblClick
  info DoubleClick
  goto evloop

:list1Click
   wait 0.1
   if @equal(@event(),list1dblClick)
     goto list1dblClick
   end
   info SingleClick
  goto evloop

:exitbutton 
:Close
  exit

#                                                                                         
#     Function MakeLPARAM                                                                 
#                                                                                         

:MakeLPARAM

  %R = @prod(%2,65536)
  %R = @sum(%R,%1)

 exit %R

#                                                                                         
#     Command ToolTip                                                                     
#                                                                                         

:ToolTip

  %%ToolTip_Text = @wrap(%1,70)
  %%ToolTip_X = @diff(%2,-10)
  %%ToolTip_Y = @diff(%3,-10)
  %%ToolTip_Duration = 50
  %%ToolTip_Exit =
  %%ToolTip_Pixels_V = 14
  %%ToolTip_Pixels_H = 26

  DIALOG CREATE,ToolTip,%%ToolTip_Y,%%ToolTip_X,360,60,NOTITLE,INVISIBLE,CLASS ToolTip,ONTOP,NOSYS
  DIALOG ADD,STYLE,normal,Tahoma,,L,,

  #     Evaluate height and width of the wrapped text           
  DIALOG ADD,TEXT,text,25,32,,,%%ToolTip_Text,,normal,TRANSPARENT
  %%ToolTip_TextHeight = @dlgpos(text,H)
  %%ToolTip_TextWidth =  @dlgpos(text,W)
  DIALOG REMOVE,text

  DIALOG SETPOS,,,,@fadd(%%ToolTip_TextWidth,%%ToolTip_Pixels_v),@fadd(%%ToolTip_TextHeight,%%ToolTip_Pixels_V)

  DIALOG ADD,SHAPE,left,0,0,40,@fadd(%%ToolTip_TextHeight,%%ToolTip_Pixels_V),E8F5FF,BLACK,,ROUNDRECT,click
  DIALOG ADD,SHAPE,right,0,@fsub(%%ToolTip_TextWidth,%%ToolTip_Pixels_H),40,@fadd(%%ToolTip_TextHeight,%%ToolTip_Pixels_V),E8F5FF,BLACK,,ROUNDRECT,click
  DIALOG ADD,SHAPE,center,0,22,@fsub(%%ToolTip_TextWidth,%%ToolTip_Pixels_H),@fadd(%%ToolTip_TextHeight,%%ToolTip_Pixels_V),E8F5FF,BLACK,,RECTANGLE,click
  DIALOG ADD,SHAPE,middle,1,22,@fsub(%%ToolTip_TextWidth,%%ToolTip_Pixels_H),@fadd(%%ToolTip_TextHeight,@diff(%%ToolTip_Pixels_V,2)),E8F5FF,E8F5FF,,RECTANGLE,click

  DIALOG ADD,TEXT,text,6,8,,,%%ToolTip_Text,,normal,TRANSPARENT,click

  DIALOG SHOW

  %C = 1

  repeat
    wait event,0.3
    %X = @diff(@mousepos(X),@winpos(%%List1,L))
    %Y = @diff(@mousepos(Y),@winpos(%%List1,T))
    %%LPARAM = @makelparam(%X,%Y)
    %%NewIndex = @sendmsg(%%List1,$01A9,0,%%LPARAM)
    if @not(@equal(%%NewIndex,%%index)) @equal(@strdel(@event(),1,-5),click) @greater(%C,%%ToolTip_Duration)
      %%ToolTip_Exit = 1
    end
  until %%ToolTip_Exit
   
    dialog close
    %A = @event()
    wait event,0.01
    %A = @event()
  exit

#                                                                                         
#     Function Wrap                                                                       
#                                                                                         

:Wrap

  if @not(%1)
    exit
  end

  if @not(%2)
    exit ERROR
  end

  %%Wrap_String = %1
  %%Wrap_Max_Length = %2

  if @not(@numeric(%2)) @equal(%3,number) @equal(%2,",")
    %%Wrap_Break_Sign = @substr(%2,1)
    goto BreakSign
  end

  if @equal(%3,exact)
    goto BreakExact
  end

#              Begin of the norrmal wrap-routine                                         

    Repeat
      %%Wrap_Counter = %%Wrap_Max_Length
      Repeat
       if @greater(%%Wrap_Max_Length,@len(%%Wrap_string))
         %%Wrap_Finish = 1
       end    
        %%Wrap_Character = @substr(%%Wrap_String,%%Wrap_Counter)
      If @equal(%%Wrap_Character,@chr(32)) @equal(%%Wrap_Character,".") @equal(%%Wrap_Character,",") @equal(%%Wrap_Character,";") @equal(%%Wrap_Character,"-") @equal(%%Wrap_Character,"!") @equal(%%Wrap_Character,"?") @equal(%%Wrap_Character,":")
        %%Wrap_Ok = 1
        %%Wrap_New = %%Wrap_New@substr(%%Wrap_String,1,%%Wrap_Counter)@cr()
        %%Wrap_String = @substr(%%Wrap_String,@succ(%%Wrap_Counter),@len(%%Wrap_String))       
       else
        %%Wrap_Counter = @pred(%%Wrap_Counter)
        %%Wrap_Ok =
        #    forced-routine       
        if @equal(%%Wrap_Counter,0)
          if @equal(%3,forced)
           %%Wrap_String = @strins(%%Wrap_String,%%Wrap_max_length,@chr(32))
           %%Wrap_Ok = 1
          else
           %%Wrap_Finish = 1
           %%Wrap_Counter = @len(%1)
         end
        end
       end   
      Until %%Wrap_Ok %%Wrap_Finish
    Until %%Wrap_Finish
    %%Wrap_New = %%Wrap_New@substr(%%Wrap_String,1,%%Wrap_Counter)
    %R = @trim(%%Wrap_New)
  goto end

#              Begin of the wrap-routine with spezified character                         
:BreakSign

    repeat
      %%Wrap_Counter = 1
      Repeat
        %%Wrap_Character = @substr(%%Wrap_String,%%Wrap_Counter)
          if @equal(%%Wrap_Counter,@len(%%Wrap_String))
            %%wrap_finish = 1
          end
          If @equal(%%Wrap_Character,%%Wrap_Break_Sign)
           %%Wrap_Ok = 1
            %%Wrap_New = %%Wrap_New@substr(%%Wrap_String,1,%%Wrap_Counter)@cr()
            %%Wrap_String = @substr(%%Wrap_String,@succ(%%Wrap_Counter),@len(%%Wrap_String))
         else
          %%Wrap_Counter = @succ(%%Wrap_Counter)
          %%Wrap_Ok =
         End

      Until %%Wrap_Ok %%wrap_finish
    Until %%wrap_finish
    %%Wrap_New = %%Wrap_New@substr(%%Wrap_String,1,%%Wrap_Counter)

    %R = @trim(%%Wrap_New)
  goto end

#              Begin of the exact wrap-routine                                           
:BreakExact

    %%Wrap_Counter = 1
    %%Wrap_String =
    REPEAT
      %%Wrap_String = %%Wrap_String@substr(%1,%%Wrap_Counter)
      if @equal(@mod(%%Wrap_Counter,%%Wrap_Max_Length),0)
        %%Wrap_String = %%Wrap_String@cr()
      end
      %%Wrap_Counter = @succ(%%Wrap_Counter)
    UNTIL @greater(%%Wrap_Counter,@len(%1))
 
    %R = @trim(%%Wrap_String)

:end
  %%Wrap_Ok =
  %%wrap_finish =
  %%Wrap_New =

 exit %R




thanks to all of you in this forum for de code-snippets and hints to make this work.

attreus
.
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