Unexpect behaviour when click on(select) some treeview item

[September]

Hi

I'm referencing

of the "Semi-virtual treeview", however, if I add one button in the GUI and run the script, if I click or select the treeview item, like "3" in this example, it will trigger button pressing function, how to fix it?
 

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#AutoIt3Wrapper_Au3Check_Parameters=-d -w- 1 -w 2 -w 3 -w 4 -w 5 -w 6 -w 7

#AutoIt3Wrapper_UseX64=Y

Opt( "MustDeclareVars", 1 )

#include <GUIConstants.au3>
#include <WindowsConstants.au3>
#include <GuiTreeView.au3>

Global $idTreeView, $hTreeView, $aItems

Example()

Func Example()
    ; Create GUI
    Local $hGui = GUICreate( "Create Semi-Virtual TreeView From File", 400, 400, 600, 300, $GUI_SS_DEFAULT_GUI )
    Local $open = GUICtrlCreateButton ("Open", 4, 300)

    ; Create TreeView
    $idTreeView = GUICtrlCreateTreeView( 4, 4, 392, 292, $GUI_SS_DEFAULT_TREEVIEW, $WS_EX_CLIENTEDGE )
    $hTreeView = GUICtrlGetHandle( $idTreeView )
    ; Read level and text of TreeView items
    $aItems = FileReadToArray( "TreeView.txt" )
    ; Create TreeView structure
    CreateTreeView( $aItems )
    ; Expand all child items
    _GUICtrlTreeView_Expand( $hTreeView )

    ; Register WM_NOTIFY message handler
    GUIRegisterMsg( $WM_NOTIFY, "WM_NOTIFY" )

    ; Show GUI
    GUISetState( @SW_SHOW, $hGui )

    ; Loop
    While 1
        Switch GUIGetMsg()
            Case $GUI_EVENT_CLOSE
                ExitLoop

             Case $open
                msgbox(0,"","HELLO")
        EndSwitch
    WEnd

    ; Cleanup
    GUIDelete( $hGui )
EndFunc

; Create TreeView structure
Func CreateTreeView( $aItems )
    ; TreeView level information
    Local $aLevels[100][2], $iLevel = 0, $iLevelPrev = 0
    ; $aLevels[$iLevel][0]/[1] contains the last item/parent of that level

    ; TreeView insert structure
    Local $tInsert = DllStructCreate( $tagTVINSERTSTRUCT ), $pInsert = DllStructGetPtr( $tInsert )
    DllStructSetData( $tInsert, "InsertAfter", $TVI_LAST )
    DllStructSetData( $tInsert, "Mask", $TVIF_HANDLE+$TVIF_PARAM+$TVIF_TEXT )
    DllStructSetData( $tInsert, "Text", -1 ) ; $LPSTR_TEXTCALLBACK

    ; Add TreeView root
    $aLevels[$iLevel][1] = NULL
    DllStructSetData( $tInsert, "Param", 0 )
    DllStructSetData( $tInsert, "Parent", $aLevels[$iLevel][1] )
    $aLevels[$iLevel][0] = GUICtrlSendMsg( $idTreeView, $TVM_INSERTITEMW, 0, $pInsert )

    ; Add TreeView items
    For $i = 1 To UBound( $aItems ) - 1
        $iLevel = StringSplit( $aItems[$i], "|", 2 )[0]
        If $iLevel <> $iLevelPrev Then
            $aLevels[$iLevel][1] = $iLevel > $iLevelPrev ? $aLevels[$iLevelPrev][0] _ ; A child of the previous level
                                                         : GUICtrlSendMsg( $idTreeView, $TVM_GETNEXTITEM, $TVGN_PARENT, $aLevels[$iLevel][0] ) ; A sibling of the level
            $iLevelPrev = $iLevel
        EndIf
        DllStructSetData( $tInsert, "Param", $i )
        DllStructSetData( $tInsert, "Parent", $aLevels[$iLevel][1] )
        $aLevels[$iLevel][0] = GUICtrlSendMsg( $idTreeView, $TVM_INSERTITEMW, 0, $pInsert )
    Next ; $aLevels[$iLevel][0]/[1] contains the last item/parent of that level
EndFunc

Func WM_NOTIFY( $hWnd, $iMsg, $wParam, $lParam )
    Local $tNMHDR = DllStructCreate( $tagNMHDR, $lParam )
    Switch HWnd( DllStructGetData( $tNMHDR, "hWndFrom" ) )
        Case $hTreeView
            Switch DllStructGetData( $tNMHDR, "Code" )
                Case $TVN_GETDISPINFOW ; Display TreeView item text
                    Local Static $tBuffer = DllStructCreate( "wchar Text[50]" ), $pBuffer = DllStructGetPtr( $tBuffer )
                    Local $tDispInfo = DllStructCreate( $tagNMTVDISPINFO, $lParam ), $sText = StringSplit( $aItems[DllStructGetData($tDispInfo,"Param")], "|", 2 )[1]
                    DllStructSetData( $tBuffer, "Text", $sText )
                    DllStructSetData( $tDispInfo, "Text", $pBuffer )
                    DllStructSetData( $tDispInfo, "TextMax", 2 * StringLen( $sText ) + 2 )
            EndSwitch
    EndSwitch
    #forceref $hWnd, $iMsg, $wParam
EndFunc

the "TreeView.txt" is:

 

0|0
0|1
0|2
1|3
1|This
1|is
2|6
2|a
2|very
2|nice
3|10
3|TreeView
0|, (comma)
1|13
1|indeed.
0|15

[Nine]

It is because you assign control IDs inside the treeview starting at 0 which is the same as the GUI.  You should start like at 1000, so the treeview does not interfere with the GUI.

[September]

Hi Nine,

I can see that the button's ID is 3, the treeview's ID is 4, but it seems that the "Func CreateTreeView( $aItems ) returns some control ID when click on their item and conflict with the ID of GUICtrlCreatexxxx.

So how to start the treeview from 1000?

[Nine]

The Control IDs of the treeview are assigned with the param element of the structure $tagTVINSERTSTRUCT.  Just add 1000 to it instead of starting at 0.  Likewise, subtract 1000 in the WM_Notify function.

[September]

Hi Nine,

Can you help to modify the script? I tried but could not get the right result. Thanks.

[Nine]

Here :

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#include <GUIConstants.au3>
#include <WindowsConstants.au3>
#include <GuiTreeView.au3>

Opt("MustDeclareVars", True)

Global Const $TREEVIEW_START = 1000

Global $idTreeView, $hTreeView, $aItems

Example()

Func Example()
  ; Create GUI
  Local $hGui = GUICreate("Create Semi-Virtual TreeView From File", 400, 400, 600, 300, $GUI_SS_DEFAULT_GUI)
  Local $open = GUICtrlCreateButton("Open", 4, 300)

  ; Create TreeView
  $idTreeView = GUICtrlCreateTreeView(4, 4, 392, 292, $GUI_SS_DEFAULT_TREEVIEW, $WS_EX_CLIENTEDGE)
  $hTreeView = GUICtrlGetHandle($idTreeView)
  ; Read level and text of TreeView items
  $aItems = FileReadToArray("TreeView.txt")
  ; Create TreeView structure
  CreateTreeView($aItems)
  ; Expand all child items
  _GUICtrlTreeView_Expand($hTreeView)

  ; Register WM_NOTIFY message handler
  GUIRegisterMsg($WM_NOTIFY, WM_NOTIFY)

  ; Show GUI
  GUISetState(@SW_SHOW, $hGui)

  ; Loop
  While 1
    Switch GUIGetMsg()
      Case $GUI_EVENT_CLOSE
        ExitLoop

      Case $open
        MsgBox(0, "", "HELLO")
    EndSwitch
  WEnd

  ; Cleanup
  GUIDelete($hGui)
EndFunc   ;==>Example

; Create TreeView structure
Func CreateTreeView($aItems)
  ; TreeView level information
  Local $aLevels[100][2], $iLevel = 0, $iLevelPrev = 0
  ; $aLevels[$iLevel][0]/[1] contains the last item/parent of that level

  ; TreeView insert structure
  Local $tInsert = DllStructCreate($tagTVINSERTSTRUCT), $pInsert = DllStructGetPtr($tInsert)
  DllStructSetData($tInsert, "InsertAfter", $TVI_LAST)
  DllStructSetData($tInsert, "Mask", $TVIF_HANDLE + $TVIF_PARAM + $TVIF_TEXT)
  DllStructSetData($tInsert, "Text", -1)     ; $LPSTR_TEXTCALLBACK

  ; Add TreeView root
  $aLevels[$iLevel][1] = Null
  DllStructSetData($tInsert, "Param", $TREEVIEW_START)
  DllStructSetData($tInsert, "Parent", $aLevels[$iLevel][1])
  $aLevels[$iLevel][0] = GUICtrlSendMsg($idTreeView, $TVM_INSERTITEMW, 0, $pInsert)

  ; Add TreeView items
  For $i = 1 To UBound($aItems) - 1
    $iLevel = StringSplit($aItems[$i], "|", 2)[0]
    If $iLevel <> $iLevelPrev Then
      $aLevels[$iLevel][1] = $iLevel > $iLevelPrev ? $aLevels[$iLevelPrev][0] _       ; A child of the previous level
           : GUICtrlSendMsg($idTreeView, $TVM_GETNEXTITEM, $TVGN_PARENT, $aLevels[$iLevel][0])                                                 ; A sibling of the level
      $iLevelPrev = $iLevel
    EndIf
    DllStructSetData($tInsert, "Param", $TREEVIEW_START + $i)
    DllStructSetData($tInsert, "Parent", $aLevels[$iLevel][1])
    $aLevels[$iLevel][0] = GUICtrlSendMsg($idTreeView, $TVM_INSERTITEMW, 0, $pInsert)
  Next   ; $aLevels[$iLevel][0]/[1] contains the last item/parent of that level
EndFunc   ;==>CreateTreeView

Func WM_NOTIFY($hWnd, $iMsg, $wParam, $lParam)
  Local $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
  Switch HWnd(DllStructGetData($tNMHDR, "hWndFrom"))
    Case $hTreeView
      Switch DllStructGetData($tNMHDR, "Code")
        Case $TVN_GETDISPINFOW         ; Display TreeView item text
          Local Static $tBuffer = DllStructCreate("wchar Text[50]"), $pBuffer = DllStructGetPtr($tBuffer)
          Local $tDispInfo = DllStructCreate($tagNMTVDISPINFO, $lParam), $sText = StringSplit($aItems[DllStructGetData($tDispInfo, "Param") - $TREEVIEW_START], "|", 2)[1]
          DllStructSetData($tBuffer, "Text", $sText)
          DllStructSetData($tDispInfo, "Text", $pBuffer)
          DllStructSetData($tDispInfo, "TextMax", 2 * StringLen($sText) + 2)
      EndSwitch
  EndSwitch
  Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_NOTIFY

 

Edited April 28, 2022 by Nine

[September]

Many thanks!