Example to manage Clicks and DoubleCliks events on TreeView Items

Lemon.fr · May 20, 2006

The rules:

-The all TreeviewItems you want to manage must be created in a loop (because next created Ctrl has CtrlID+=1 , then u can get the first and last CtrlId for a faster test in main loop)

-so you may need to store TreeviewItems Ctrl IDs in an array for a faster search.

-$TVS_DISABLEDRAGDROP must be set for your Treeview, why ? answer follows

How it works:

If $TVS_DISABLEDRAGDROP is set for a treeview then the PRIMARYDOWN Msg isn't sent when you click on a Treeview Item, but is sent if you DblClk...

Then i test, when the PRIMARYDOWN comes and mousecursor is over a TVI (TreeviewItem) using the TV_Hittest Msg.

; Exemple to capture TreeViewItem Clicks & DoubleClick without GUIRegisterMsg($WM_NOTIFY, "WM_Notify_Events_manager")
; using AutoIt3 beta
; by Lemon.fr

;#include "C:\Program Files\AutoIt3\Include\GUIConstants.au3"
#include <GUIConstants.au3>
; TV msgs
Const $TV_FIRST = 0x1100
Const $TVM_SELECTITEM = ($TV_FIRST + 11)
Const $TVM_HITTEST = ($TV_FIRST + 17)
Const $TVGN_CARET = 0x9
; TV HitTest Flags
Const $TVHT_ONITEMICON = 2
Const $TVHT_ONITEMLABEL = 4
Const $TVHT_ONITEM = BitOR($TVHT_ONITEMICON, $TVHT_ONITEMLABEL)
; gui size
Global $width = 310
Global $height = 400
; Build GUI
$myGui = GUICreate("TVI Clk&DblClk Exemple", $width, $height, -1, -1,BitOR($WS_SIZEBOX,$WS_MINIMIZEBOX,$WS_MAXIMIZEBOX,$WS_SYSMENU,$WS_CAPTION,$WS_GROUP,$WS_BORDER))
$myLabel = GUICtrlCreateLabel("Last action:",1,1,300)
GUISetState(@SW_SHOW, $myGui)
Build_TV(10, 20, $width-20, $height-40); build a Treeview with random items

; Main event loop
While 1
    $aMsg = GUIGetMsg(1)
    $msg = $aMsg[0]
    If $msg = $GUI_EVENT_CLOSE Then ExitLoop
; for TVI Clk
    If $msg >= $SubItems[0] And $msg <= $SubItems[UBound($SubItems) - 1] Then NotifyUs($msg)
; for TVI DblClk
    If $msg = $GUI_EVENT_PRIMARYDOWN Then; If LMB Down
        $mouse = GUIGetCursorInfo($myGui); Get CtrlID under mouse
        If $mouse[4] = $myTreeView Then; to be sure PRIMARYDOWN comes from our TreeView...
            $hitem = TV_Hittest($myTreeView, $aMsg[3], $aMsg[4], $TVHT_ONITEM, 0); test if PRIMARYDOWN was over a TV Item
            $TVI_CtrlID = GUICtrlRead($myTreeView); get the curent TVI CtrlID
    ; If TVI_CtrlID is within first and last CtrlId in the array then notify us
            If $hitem <> 0 And $TVI_CtrlID >= $SubItems[0] And $TVI_CtrlID <= $SubItems[UBound($SubItems) - 1] Then NotifyUs($TVI_CtrlID,True)
        EndIf
    EndIf
WEnd
; ###################################################################
Func Build_TV($x, $y, $w, $h)
; $TVS_DISABLEDRAGDROP is REQUIRED to capture DblClk (PRIMARYDOWN on TVIs), else i think its possible by using PRIMARYUP...
    Global $myTreeView = GUICtrlCreateTreeView($x,$y,$w,$h,BitOr($TVS_HASBUTTONS,$TVS_SHOWSELALWAYS,$TVS_HASLINES,$TVS_LINESATROOT,$TVS_DISABLEDRAGDROP))
    Global $MainItem
    Global $SubItems
    Dim $MainItem[3]
    $MainItem[0] = GUICtrlCreateTreeViewItem("MainItem1", $myTreeView)
    $MainItem[1] = GUICtrlCreateTreeViewItem("MainItem2", $myTreeView)
    $MainItem[2] = GUICtrlCreateTreeViewItem("MainItem3", $myTreeView)
; lots of subitems, Control IDs stored in array
    $MaxSubItems = 100
    Dim $SubItems[$MaxSubItems]
    For $i = 0 To $MaxSubItems - 1
        $r = Random(0, 2, 1); from 0 to 2 and return an Int
        $SubItems[$i] = GUICtrlCreateTreeViewItem("I am SubItem# " & $i, $MainItem[$r])
        GuiCtrlSetState($SubItems[$i], $GUI_DEFBUTTON)
        GUICtrlSetColor($SubItems[$i],0x008800); SetBackColor works also :)
    Next

EndFunc ;==>Build_TV

Func TV_Hittest($TreeView, $x, $y, $hitflag, $focus = 1) 
; Modified useful function from a cool guy on forum, can't remember his name, sorry :)
; His comments now:
    Local $i, $hitinfo, $hit, $tpos
    $i = 0
;get top and left positions of treeview control
    $tpos = ControlGetPos("", "", $TreeView)
    If Not @error Then
        $x = $x - $tpos[0];left offset
        $y = $y - $tpos[1];$top offset
        $hitinfo = DllStructCreate ("int;int;uint;uint");not sure if uint or ptr should go here...will look it up..32 bits is 32 bits
        If Not @error Then
            DllStructSetData ($hitinfo, 1, $x)
            DllStructSetData ($hitinfo, 2, $y)
            DllStructSetData ($hitinfo, 3, 0)
            DllStructSetData ($hitinfo, 4, 0)
            GUICtrlSendMsg($TreeView, $TVM_HITTEST, 0, DllStructGetPtr ($hitinfo))
            $hit = DllStructGetData ($hitinfo, 3);flags returned
            $i = DllStructGetData ($hitinfo, 4);handle
            $hitinfo = 0;DllStructDelete($hitinfo); seems no DllStructDelete in beta version 1.99
            If BitAND($hit, $hitflag) = 0 Then Return 0
            If $i And $focus <> 0 Then GUICtrlSendMsg($TreeView, $TVM_SELECTITEM, $TVGN_CARET, $i)
            Return $i;return control handle if any
        EndIf
    EndIf
EndFunc ;==>TV_Hittest

Func NotifyUs($CtrlId,$DblClick=False)
    Local $MySelectedSubItem= $CtrlId-$SubItems[0]
    Local $txt="Last action:"
    If $DblClick Then $txt&=" Double"
    $txt&=" Click on SubItem# "&$MySelectedSubItem
    GUICtrlSetData($myLabel,$txt)
EndFunc

Because i needed this for my project, this is the only way i found w/o using GuiRegisterMsg which can do strange things on a treeview control.

Hoping it could help someone,

Cheers.

Edited May 20, 2006 by Lemon.fr

jpam · May 20, 2006

Very nice !!!

i like to see something simulair for the listview !!!

is that possible?

jpam

SmOke_N · May 20, 2006

Very nice !!!
i like to see something simulair for the listview !!!
is that possible?
jpam

You should try the term "double click" in the search advance options of the GUI forum.

Lemon.fr · May 20, 2006

Very nice !!!
i like to see something simulair for the listview !!!
is that possible?
jpam

thx,

I started to look at it and it seems to be possible, i will post a script if it works

Lemon.fr · May 20, 2006

You should try the term "double click" in the search advance options of the GUI forum.

I did it and they use GuiRegisterMsg() IIRC...

EDIT:

I reported here the problem with GuiRegisterMsg() function and very stranges behavior with TreeView control.

In my project i use a Treeview and a ListView in the same script, GuiRegisterMsg() doesn't allow me to manage both.

SmOke_N · May 20, 2006

I did it and they use GuiRegisterMsg() IIRC...
EDIT:
I reported here the problem with GuiRegisterMsg() function and very stranges behavior with TreeView control.
In my project i use a Treeview and a ListView in the same script, GuiRegisterMsg() doesn't allow me to manage both.

I wasn't speaking of yours, I also did a _DoubleClick() with _IsPressed(). I don't know if $GUI_EVENT_PRIMARYDOWN only reports on a doubleclick as you say with ListView as it does with TreeView which is what he was asking. In that case, maybe one of the other alternatives may work for him

.

I hope the issue you reported is resolved easily .

jefhal · May 20, 2006

Hoping it could help someone,
Cheers.

This is very nice work. Thank you. I did receive the following error when running it though it did not prevent me from testing it:

>"C:\Program Files\AutoIt3\SciTe\AutoIt3Wrapper\AutoIt3Wrapper.exe" /run /beta /ErrorStdOut /in "C:\Program Files\AutoIt3\Examples\TestOfTreeViewWithDoubleclick.au3" /autoit3dir "C:\Program Files\AutoIt3\beta" /UserParams
>Running AU3Check (1.54.1.1) params: from:C:\Program Files\AutoIt3\beta
C:\Program Files\AutoIt3\Examples\TestOfTreeViewWithDoubleclick.au3(31,29) : WARNING: $SubItems: possibly used before declaration.
If $msg >= $SubItems[0]And
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
C:\Program Files\AutoIt3\Examples\TestOfTreeViewWithDoubleclick.au3(35,36) : WARNING: $myTreeView: possibly used before declaration.
If $mouse[4] = $myTreeView Then
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
C:\Program Files\AutoIt3\Examples\TestOfTreeViewWithDoubleclick.au3 - 0 error(s), 2 warning(s)
->AU3Check ended.rc:1
>Running:(3.1.1.124):C:\Program Files\AutoIt3\beta\autoit3.exe "C:\Program Files\AutoIt3\Examples\TestOfTreeViewWithDoubleclick.au3"
+>AutoIT3.exe ended.rc:0
>Exit code: 0 Time: 38.118

Lemon.fr · May 20, 2006

@SmoKeN: Yes

@jefhal: Because im a lazy ass, i don't declare my vars, but this is not a problem with autoit

Lemon.fr · May 21, 2006

It seems possible to use the same method without $TVS_DISABLEDRAGDROP (by the way, this is the default styles with autoit) :

By using PRIMARYUP instead of PRIMARYDOWN

this little script shows you all messages from GuiGetMsg, and the different reports with both styles.

#include <GUIConstants.au3>
; gui size
Global $width = 800
Global $height = 600
;
$myGui = GUICreate("GetMsg Tester with a Treeview", $width, $height, -1, -1,BitOR($WS_SIZEBOX,$WS_MINIMIZEBOX,$WS_MAXIMIZEBOX,$WS_SYSMENU,$WS_CAPTION,$WS_GROUP,$WS_BORDER))
$myEdit = GUICtrlCreateEdit("", 1, 1, $width - 1, 150)
$myBt_clear = GUICtrlCreateButton("Clear", 1, 152)
$myBt_StyleNoDragDropEnable = GUICtrlCreateButton("GUICtrlSetStyle($myTreeView,$TVS_DISABLEDRAGDROP)", 350, 152)
$myBt_StyleNoDragDropDisable = GUICtrlCreateButton("GUICtrlSetStyle($myTreeView,0)", 350, 182)

GUISetState(@SW_SHOW, $myGui)
; CONTROL TO TEST
Build_TV(10, 200, 300, 300)
; Main event loop
While 1
    $amsg = GUIGetMsg(1)
    $msg = $amsg[0]
    If $msg = $GUI_EVENT_CLOSE Then ExitLoop
    If $msg = $myBt_clear Then GUICtrlSetData($myEdit, "")
    If $msg = $myBt_StyleNoDragDropEnable Then GUICtrlSetStyle($myTreeView,$TVS_DISABLEDRAGDROP)
    If $msg = $myBt_StyleNoDragDropDisable Then GUICtrlSetStyle($myTreeView,0)
    If $msg<>0 AND $msg<>-11 Then
        $acurs=GUIGetCursorInfo($myGui)
        $curs_over=$acurs[4]
        $txt="Msg:"&$msg
        Switch $msg
            Case -4
                $txt&=" (Minimize)"
            Case -5
                $txt&=" (Restore)"
            Case -6
                $txt&=" (Maximize)"
            Case -7
                $txt&=" (Primary Down)"
            Case -8
                $txt&=" (Primary Up)"
            Case -9
                $txt&=" (Secondary Down)"
            Case -10
                $txt&=" (Secondary Up)"
    ;Case -11
        ;$txt&="(Mouse Move)"; not needed and annoying
            Case -12
                $txt&=" (Resized)"
            Case -13
                $txt&=" (Dropped)"
            Case Else
                $txt&=" (CTRL)"
        EndSwitch
        $txt&="  CursOver:"&$curs_over&"    WinH:"&$amsg[1]&" CtrlH:"&$amsg[2]
        GUICtrlSetData($myEdit,$txt&@CRLF,1)
        EndIf
WEnd
; ###################################################################
Func Build_TV($x, $y, $w, $h)
    Global $myTreeView = GUICtrlCreateTreeView($x,$y,$w,$h)
    Global $MainItem
    Global $SubItems
; few parent items, Control IDs stored in array
    Dim $MainItem[3]
    $MainItem[0] = GUICtrlCreateTreeViewItem("Item1", $myTreeView)
    $MainItem[1] = GUICtrlCreateTreeViewItem("Item2", $myTreeView)
    $MainItem[2] = GUICtrlCreateTreeViewItem("Item3", $myTreeView)
; lots of subitems, Control IDs stored in array
    $MaxSubItems = 300
    Dim $SubItems[$MaxSubItems]
    
    For $i = 0 To $MaxSubItems - 1
        $r = Random(0, 2, 1); from 0 to 2 and return an Int
        $SubItems[$i] = GUICtrlCreateTreeViewItem("SubItem " & $i, $MainItem[$r])
        GuiCtrlSetState($SubItems[$i], $GUI_DEFBUTTON)
        GUICtrlSetColor($SubItems[$i],0x008800)
     Next
EndFunc ;==>Build_TV

Edited May 21, 2006 by Lemon.fr

Lemon.fr · May 21, 2006

Now with Listview,

As for the treeview without $TVS_DISABLEDRAGDROP, this is possible to capture DoubleClick with a PRIMARYUP over an Item (There's a LVHitTest Msg like for treeviews) but as far as i know there's no way to disable Drag&Drop feature in a Listview, so if the user starts to drag an LV item over another LV item then GuiGetMsg will report a PRIMARYUP and thats not doubleclick

#include <GUIConstants.au3>
; gui size
Global $width = 800
Global $height = 600
;
$myGui = GUICreate("GetMsg Tester with a Listview", $width, $height, -1, -1, BitOR($WS_SIZEBOX, $WS_MINIMIZEBOX, $WS_MAXIMIZEBOX, $WS_SYSMENU, $WS_CAPTION, $WS_GROUP, $WS_BORDER))
$myEdit = GUICtrlCreateEdit("", 1, 1, $width - 1, 150)
$myBt_clear = GUICtrlCreateButton("Clear", 1, 152)
;$myBt_StyleNoDragDropEnable = GUICtrlCreateButton("GUICtrlSetStyle($myTreeView,$TVS_DISABLEDRAGDROP)", 350, 152)
;$myBt_StyleNoDragDropDisable = GUICtrlCreateButton("GUICtrlSetStyle($myTreeView,0)", 350, 182)

GUISetState(@SW_SHOW, $myGui)
; CONTROL TO TEST
Build_LV (10, 200, 300, 300)
; Main event loop
While 1
    $amsg = GUIGetMsg(1)
    $msg = $amsg[0]
    If $msg = $GUI_EVENT_CLOSE Then ExitLoop
    If $msg = $myBt_clear Then GUICtrlSetData($myEdit, "")
;If $msg = $myBt_StyleNoDragDropEnable Then GUICtrlSetStyle($myTreeView, $TVS_DISABLEDRAGDROP)
;If $msg = $myBt_StyleNoDragDropDisable Then GUICtrlSetStyle($myTreeView, 0)
    If $msg <> 0 And $msg <> - 11 Then
        $acurs = GUIGetCursorInfo($myGui)
        $curs_over = $acurs[4]
        $txt = "Msg:" & $msg
        Switch $msg
            Case -4
                $txt &= " (Minimize)"
            Case -5
                $txt &= " (Restore)"
            Case -6
                $txt &= " (Maximize)"
            Case -7
                $txt &= " (Primary Down)"
            Case -8
                $txt &= " (Primary Up)"
            Case -9
                $txt &= " (Secondary Down)"
            Case -10
                $txt &= " (Secondary Up)"
            ;Case -11
            ;$txt&="(Mouse Move)"; not needed and annoying
            Case -12
                $txt &= " (Resized)"
            Case -13
                $txt &= " (Dropped)"
            Case Else
                $txt &= " (CTRL)"
        EndSwitch
        $txt &= "  CursOver:" & $curs_over & "  WinH:" & $amsg[1] & " CtrlH:" & $amsg[2]
        GUICtrlSetData($myEdit, $txt & @CRLF, 1)
    EndIf
WEnd
; ###################################################################
Func Build_LV($x, $y, $w, $h)
    Global $myListView = GUICtrlCreateListView("Hello",$x,$y,$w,$h)
    Global $Items
    Global $SubItems
    $MaxSubItems = 300
    Dim $Items[$MaxSubItems]
    For $i = 0 To $MaxSubItems - 1
        $Items[$i] = GUICtrlCreateListViewItem("Item " & $i, $myListView)
        GUICtrlSetColor($Items[$i], 0x008800)
    Next
EndFunc  ;==>Build_TV

Lemon.fr · May 21, 2006

I really would have something to manage DoubleClicks on Treeviews and ListViews Items (both in same window ), my autoit project is stoped (after 3000 lines of code...), i tried many ways, and this forced me (which isn't a bad thing) to learn more about Windows SDK, i even started to learn C++ but this is boring (won't recode all the autoit functions + the time needed to be a c++ king...)

Maybe im not alone in this state, we could share solutions here

hope here

PS: i know AutoIt3 still under devellopment

Edited May 21, 2006 by Lemon.fr

jpam · May 21, 2006

your example for listview works smooth i think

when you throw a msgbox in Case primaryup

i going to play with it on my program

thanks lemon.fr

Example to manage Clicks and DoubleCliks events on TreeView Items

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