ListView LVM_GETNEXTITEM + LVNI_SAMEGROUPONLY

[mLipok]

Here's an example, but it doesn't work well

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#include <GUIConstantsEx.au3>
#include <GuiImageList.au3>
#include <GuiListView.au3>

Global Const $LVNI_SAMEGROUPONLY = 0x0080

Example()

Func Example()
    GUICreate("ListView Enable Group View", 400, 300)
    Local $idListview = GUICtrlCreateListView("", 2, 2, 394, 268)
    Local $hLV = GUICtrlGetHandle($idListview)
    GUISetState(@SW_SHOW)

    ; Add columns
    _GUICtrlListView_InsertColumn($idListview, 0, "Column 1", 150)
    _GUICtrlListView_InsertColumn($idListview, 1, "Column 2", 100)
    _GUICtrlListView_InsertColumn($idListview, 2, "Column 3", 100)

    ; Add items
    _GUICtrlListView_AddItem($idListview, "Item 0 Row 1: Col 1")
    _GUICtrlListView_AddSubItem($idListview, 0, "Row 1: Col 2", 1)
    _GUICtrlListView_AddSubItem($idListview, 0, "Row 1: Col 3", 2)
    _GUICtrlListView_AddItem($idListview, "Item 1 Row 2: Col 1")
    _GUICtrlListView_AddSubItem($idListview, 1, "Row 2: Col 2", 1)

    _GUICtrlListView_AddItem($idListview, "Item 2 Row 3: Col 1")
    _GUICtrlListView_AddItem($idListview, "Item 3 Row 4: Col 1")
    _GUICtrlListView_AddItem($idListview, "Item 4 Row 5: Col 1")
    _GUICtrlListView_AddItem($idListview, "Item 5 Row 6: Col 1")

    ; Build groups
    _GUICtrlListView_EnableGroupView($idListview)
    _GUICtrlListView_InsertGroup($idListview, -1, 101, "Group 101")
    _GUICtrlListView_InsertGroup($idListview, -1, 202, "Group 202")
    _GUICtrlListView_SetItemGroupID($idListview, 0, 101)
    _GUICtrlListView_SetItemGroupID($idListview, 1, 101)

    _GUICtrlListView_SetItemGroupID($idListview, 2, 202)
    _GUICtrlListView_SetItemGroupID($idListview, 3, 202)
    _GUICtrlListView_SetItemGroupID($idListview, 4, 202)
    _GUICtrlListView_SetItemGroupID($idListview, 5, 202)


    _GetGroupAllItems($hLV, 101)
    _GetGroupAllItems($hLV, 202)

    ; Loop until the user exits.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    GUIDelete()
EndFunc   ;==>Example


Func _GetGroupAllItems($hLV, $iGroupID)
    Local $iFirstItem = _GetGroupFirstItem($hLV, $iGroupID)
    Local $iNextItem = $iFirstItem
    ConsoleWrite("> iGroupID = " & $iGroupID & " $iFirstItem = " & $iFirstItem & @CRLF)

    Do
        $iNextItem = _GetGroupNextItem($hLV, $iNextItem)
        ConsoleWrite("- $iNextItem = " & $iNextItem & @CRLF)
    Until $iNextItem = -1

EndFunc   ;==>_GetGroupAllItems

Func _GetGroupNextItem($hLV, $iItemIndex)
    Local $iFound = _SendMessage( _
            $hLV, _
            $LVM_GETNEXTITEM, _
            $iItemIndex, _
            $LVNI_SAMEGROUPONLY)
    Return $iFound
EndFunc   ;==>_GetGroupNextItem

Func _GetGroupFirstItem($hLV, $iGroupID)

    Local $tag = _
            "dword cbSize;" & _
            "dword mask;" & _
            "ptr pszHeader;" & _
            "int cchHeader;" & _
            "int iGroupId;" & _
            "dword stateMask;" & _
            "dword state;" & _
            "uint uAlign;" & _
            "int cItems;" & _
            "int iFirstItem"

    Local $t = DllStructCreate($tag)

    DllStructSetData($t, "cbSize", DllStructGetSize($t))

    ; IMPORTANT: request iFirstItem
    DllStructSetData($t, "mask", $LVGF_ITEMS)

    _SendMessage($hLV, $LVM_GETGROUPINFO, $iGroupID, DllStructGetPtr($t))

    Return DllStructGetData($t, "iFirstItem")

EndFunc   ;==>_GetGroupFirstItem

 

I get:
 

Quote

> iGroupID = 101 $iFirstItem = 0
- $iNextItem = 1
- $iNextItem = 2
- $iNextItem = 3
- $iNextItem = 4
- $iNextItem = 5
- $iNextItem = -1
> iGroupID = 202 $iFirstItem = 0
- $iNextItem = 1
- $iNextItem = 2
- $iNextItem = 3
- $iNextItem = 4
- $iNextItem = 5
- $iNextItem = -1

but it should gives:

Quote

> iGroupID = 101 $iFirstItem = 0
- $iNextItem = 1
- $iNextItem = -1
> iGroupID = 202 $iFirstItem = 2
- $iNextItem = 3
- $iNextItem = 4
- $iNextItem = 5
- $iNextItem = -1

any concept why _GetGroupFirstItem() nad _GetGroupNextItem() both doesn't work well ?

[mLipok]

Thanks to @Nine code from here: ListView + ImageList for GroupHeader ( LVSIL_GROUPHEADER )

here is my modified code:

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;~ https://www.autoitscript.com/forum/topic/213683-listview-imagelist-for-groupheader-lvsil_groupheader

; From Nine (base code of mLipok)
#include <GUIConstantsEx.au3>
#include <GuiListView.au3>
#include <GuiImageList.au3>

;~ Global Const $LVNI_SAMEGROUPONLY = 0x0080
;~ Global Const $LVSIL_GROUPHEADER = 3
Global Const $tagLVGROUPEx = _
        "uint cbSize;" & _
        "uint mask;" & _
        "ptr pszHeader;" & _
        "int cchHeader;" & _
        "ptr pszFooter;" & _
        "int cchFooter;" & _
        "int iGroupId;" & _
        "uint stateMask;" & _
        "uint state;" & _
        "uint uAlign;" & _
        "ptr pszSubtitle;" & _
        "uint cchSubtitle;" & _
        "ptr pszTask;" & _
        "uint cchTask;" & _
        "ptr pszDescriptionTop;" & _
        "uint cchDescriptionTop;" & _
        "ptr pszDescriptionBottom;" & _
        "uint cchDescriptionBottom;" & _
        "int iTitleImage;" & _
        "int iExtendedImage;" & _
        "int iFirstItem;" & _
        "uint cItems;" & _
        "ptr pszSubsetTitle;" & _
        "uint cchSubsetTitle"

Global $tInfo = DllStructCreate("dword cbSize;dword dwMajorVersion;dword dwMinorVersion;dword dwBuildNumber;dword dwPlatformID;dword dwFlags;uint64 ullVersion;")
$tInfo.cbSize = DllStructGetSize($tInfo)
DllCall("ComCtl32.dll", "long", "DllGetVersion", "struct*", $tInfo)
If $tInfo.dwMajorVersion < 6 Then Exit ConsoleWrite("You need version 6 or higher" & @CRLF)

Example()

Func Example()
    Local $hGUI = GUICreate("GroupHeaderImageList", 500, 300)
    #forceref $hGUI
    Local $idListView = GUICtrlCreateListView("Name|Value", 10, 10, 480, 250)
    Local $hListView = GUICtrlGetHandle($idListView)

    _GUICtrlListView_EnableGroupView($hListView)

    _GUICtrlListView_InsertGroup($hListView, -1, 101, 'Group A')

    Local $iItem0 = _GUICtrlListView_AddItem($hListView, "Item 0")
    _GUICtrlListView_AddSubItem($hListView, $iItem0, "123", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem0, 101)
    Local $iItem1 = _GUICtrlListView_AddItem($hListView, "Item 1")
    _GUICtrlListView_AddSubItem($hListView, $iItem1, "234", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem1, 101)

    #Region ; Nine code
    Local $hImageList = _GUIImageList_Create(16, 16, 5, 3)
    _GUIImageList_AddIcon($hImageList, @SystemDir & "\shell32.dll", 110)
    _SendMessage($hListView, $LVM_SETIMAGELIST, $LVSIL_GROUPHEADER, $hImageList)

    Local $sHeader = "Group B"
    Local $tText = DllStructCreate("wchar[" & StringLen($sHeader) + 1 & "]")
    DllStructSetData($tText, 1, $sHeader)
    Local $tGroup_template = DllStructCreate($tagLVGROUPEx)
    Local $tGroup = $tGroup_template
    $tGroup.cbSize = DllStructGetSize($tGroup)
    $tGroup.mask = BitOR($LVGF_HEADER, $LVGF_GROUPID, $LVGF_TITLEIMAGE)
    $tGroup.pszHeader = DllStructGetPtr($tText)
    $tGroup.cchHeader = StringLen($sHeader)
    $tGroup.iGroupId = 102
    $tGroup.iTitleImage = 0

    _SendMessage($hListView, $LVM_INSERTGROUP, -1, DllStructGetPtr($tGroup))

    Local $iItem2 = _GUICtrlListView_AddItem($hListView, "Item 2")
    _GUICtrlListView_AddSubItem($hListView, $iItem2, "456", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem2, 102)
    ConsoleWrite("- $iItem2=" & $iItem2 & @CRLF)

    Local $iItem3 = _GUICtrlListView_AddItem($hListView, "Item 3")
    _GUICtrlListView_AddSubItem($hListView, $iItem3, "567", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem3, 102)
    ConsoleWrite("- $iItem3=" & $iItem3 & @CRLF)

    Local $iItem4 = _GUICtrlListView_AddItem($hListView, "Item 4")
    _GUICtrlListView_AddSubItem($hListView, $iItem4, "678", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem4, 102)
    ConsoleWrite("- $iItem4=" & $iItem4 & @CRLF)

    #EndRegion ; Nine code

    _GUICtrlListView_InsertGroup($hListView, -1, 103, 'Group C')

    Local $iItem5 = _GUICtrlListView_AddItem($hListView, "Item 5")
    _GUICtrlListView_AddSubItem($hListView, $iItem5, "9a", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem5, 103)
    Local $iItem6 = _GUICtrlListView_AddItem($hListView, "Item 6")
    _GUICtrlListView_AddSubItem($hListView, $iItem6, "9b", 1)
    _GUICtrlListView_SetItemGroupID($hListView, $iItem6, 103)

    ConsoleWrite("_GetGroupFirstItem() = " & _GetGroupFirstItem($hListView, 102) & @CRLF)
    ConsoleWrite("_GetGroupItemsCount() = " & _GetGroupItemsCount($hListView, 102) & @CRLF)


    _GetGroupAllItems($hListView, 102)

    GUISetState()

    While GUIGetMsg() <> $GUI_EVENT_CLOSE
    WEnd
EndFunc   ;==>Example


Func _GetGroupAllItems($hListView, $iGroupID)
    Local $iFirstItem = _GetGroupFirstItem($hListView, $iGroupID)
    ConsoleWrite("+ $iFirstItem=" & $iFirstItem & @CRLF)

;~  For $IDX = $iFirstItem To $iFirstItem
    Local $iCheckItem = $iFirstItem, $iNextItem

    While 1
        $iNextItem = _GetGroupNextItem($hListView, $iCheckItem)
;~      $iNextItem = _GUICtrlListView_GetNextItem_mod($hListView, $iCheckItem, 2, 16)
        ConsoleWrite("+ $iNextItem=" & $iNextItem & @CRLF)
        If $iNextItem = -1 Then ExitLoop
        $iCheckItem = $iNextItem
        Sleep(10)
    WEnd

EndFunc   ;==>_GetGroupAllItems

Func _GetGroupNextItem($hListView, $iItemIndex)
    Local $iGroup = _GUICtrlListView_GetGroupIndexByItemIndex($hListView, $iItemIndex, $iGroup)
    ; https://learn.microsoft.com/en-us/windows/win32/api/commctrl/ns-commctrl-lvitemindex
    Local Const $tagLVITEMINDEX = "int iItem;int iGroup"
    Local $tIndex = DllStructCreate($tagLVITEMINDEX)
    $tIndex.iItem = $iItemIndex
    $tIndex.iGroup = $iGroup
    ConsoleWrite("- $iGroup=" & $iGroup & @CRLF)

    _SendMessage( _
            $hListView, _
            $LVM_GETNEXTITEMINDEX, _
            DllStructGetPtr($tIndex), _
            $LVNI_SAMEGROUPONLY)
    Return $tIndex.iItem
EndFunc   ;==>_GetGroupNextItem

Func _GetGroupFirstItem($hListView, $iGroupID)
    Local $t = DllStructCreate($tagLVGROUPEx)
    $t.cbSize = DllStructGetSize($t)
    ; IMPORTANT: request iFirstItem
    $t.mask = $LVGF_ITEMS
    _SendMessage($hListView, $LVM_GETGROUPINFO, $iGroupID, DllStructGetPtr($t))
    Return $t.iFirstItem
EndFunc   ;==>_GetGroupFirstItem

Func _GetGroupItemsCount($hListView, $iGroupID)
    Local $t = DllStructCreate($tagLVGROUPEx)
    $t.cbSize = DllStructGetSize($t)
    ; IMPORTANT: request BOTH fields
    $t.mask = $LVGF_ITEMS
    _SendMessage($hListView, $LVM_GETGROUPINFO, $iGroupID, DllStructGetPtr($t))
    Return $t.cItems
EndFunc   ;==>_GetGroupItemsCount


Func _GUICtrlListView_GetNextItem_mod($hWnd, $iStart = -1, $iSearch = 0, $iState = 8)
    Local $aSearch[5] = [$LVNI_ALL, $LVNI_ABOVE, $LVNI_BELOW, $LVNI_TOLEFT, $LVNI_TORIGHT]

    Local $iFlags = $aSearch[$iSearch]
    If BitAND($iState, 1) <> 0 Then $iFlags = BitOR($iFlags, $LVNI_CUT)
    If BitAND($iState, 2) <> 0 Then $iFlags = BitOR($iFlags, $LVNI_DROPHILITED)
    If BitAND($iState, 4) <> 0 Then $iFlags = BitOR($iFlags, $LVNI_FOCUSED)
    If BitAND($iState, 8) <> 0 Then $iFlags = BitOR($iFlags, $LVNI_SELECTED)
    If BitAND($iState, 16) <> 0 Then $iFlags = BitOR($iFlags, $LVNI_SAMEGROUPONLY)
    If IsHWnd($hWnd) Then
        Return _SendMessage($hWnd, $LVM_GETNEXTITEM, $iStart, $iFlags)
    Else
        Return GUICtrlSendMsg($hWnd, $LVM_GETNEXTITEM, $iStart, $iFlags)
    EndIf
EndFunc   ;==>_GUICtrlListView_GetNextItem_mod


Func _GUICtrlListView_GetGroupIndexByItemIndex($hWnd, $iItem)
    ;https://www.autoitscript.com/forum/topic/213679-listview-get-igroupid-and-igroup-for-listviewitem/#findComment-1552392
    Local $iGroupID = _GUICtrlListView_GetItemGroupID($hWnd, $iItem)
    Return _GUICtrlListView_GetGroupIndexByGroupID($hWnd, $iGroupID)
EndFunc   ;==>_GUICtrlListView_GetGroupIndexByItemIndex

Func _GUICtrlListView_GetGroupIndexByGroupID($hWnd, $iGroupID)
    ;https://www.autoitscript.com/forum/topic/213679-listview-get-igroupid-and-igroup-for-listviewitem/#findComment-1552392
    Local $iMaxIndex = _GUICtrlListView_GetGroupCount($hWnd) - 1
    Local $aInfo
    For $i = 0 To $iMaxIndex
        $aInfo = _GUICtrlListView_GetGroupInfoByIndex($hWnd, $i)
        If $aInfo[2] = $iGroupID Then Return $i
    Next

    Return SetError(1, 0, -1)
EndFunc   ;==>_GUICtrlListView_GetGroupIndexByGroupID

 

This both function works: _GetGroupItemsCount()  and _GetGroupFirstItem()

but I still have problems with:

Func _GetGroupNextItem($hListView, $iItemIndex)
    Local $iGroup = _GUICtrlListView_GetGroupIndexByItemIndex($hListView, $iItemIndex, $iGroup)
    ; https://learn.microsoft.com/en-us/windows/win32/api/commctrl/ns-commctrl-lvitemindex
    Local Const $tagLVITEMINDEX = "int iItem;int iGroup"
    Local $tIndex = DllStructCreate($tagLVITEMINDEX)
    $tIndex.iItem = $iItemIndex
    $tIndex.iGroup = $iGroup
    ConsoleWrite("- $iGroup=" & $iGroup & @CRLF)

    _SendMessage( _
            $hListView, _
            $LVM_GETNEXTITEMINDEX, _
            DllStructGetPtr($tIndex), _
            $LVNI_SAMEGROUPONLY)
    Return $tIndex.iItem
EndFunc   ;==>_GetGroupNextItem