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I've been having some problems adding a icon from a .dll into a treeview,

Does the function _GUICtrlTreeView_SetIcon only allow you to use Shell icons or am i doing something wrong?

My main script is way to large to post up so I've created a short example to illustrate my problem

the resource file is attatched

#include <GUITreeView.au3>
#include <TreeViewConstants.au3>
#include <GUIConstants.au3>

Global $GUITree, $hTree

$hGUI = GUICreate("Example", 500, 500, -1, -1)
GUICtrlCreateLabel("Add Item Type ( 1 - 22 )", 220, 20)
$hCombo = GUICtrlCreateCombo("", 220, 40, 50, 22, 0x0003)
GUICtrlSetData(-1, "1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22", "1")
$hCreate = GUICtrlCreateButton("Create Tree Item", 280, 39, 100, 22)
$hTree = GUICtrlCreateTreeView( 10, 10, 200, 480, BitOR($TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS))
GUISetState()

_GUICtrlTreeView_BeginUpdate($hTree)
$GUITree = _GUICtrlTreeView_Add($hTree, 0, "hGUI")
_GUICtrlTreeView_SetIcon($GUITree, $GUITree, @ScriptDir&"\Resources.dll", 119)
_GUICtrlTreeView_EndUpdate($hTree)

While 1
    $hMsg = GUIGetMsg()
    Switch $hMsg
        Case -3
            Exit
        Case $hCreate
            $hTreeItem = _AddTreeItem("Control Type "&GUICtrlRead($hCombo), GUICtrlRead($hCombo))
            _GUICtrlTreeView_Expand($hTree)
    EndSwitch
WEnd

Func _AddTreeItem($aName, $aType)
    _GUICtrlTreeView_BeginUpdate($hTree)
    $hItem = _GUICtrlTreeView_AddChild($hTree, $GUITree, $aName)
    _GUICtrlTreeView_SetIcon($hTree, $hItem, @ScriptDir&"\Resources.dll", _GetIcon($aType))
    _GUICtrlTreeView_EndUpdate($hTree)
    ConsoleWrite("+ _AddTreeItem("&$aName&", "&$aType&")    Icon # "&_GetIcon($aType)&@CRLF)
    Return $hItem
EndFunc

Func _GetIcon($Type)
    If $Type = 1 Then
        Return 122
    ElseIf $Type = 2 Then
        Return 102
    ElseIf $Type = 3 Then
        Return 121
    ElseIf $Type = 4 Then
        Return 114
    ElseIf $Type = 5 Then
        Return 105
    ElseIf $Type = 6 Then
        Return 129
    ElseIf $Type = 7 Then
        Return 107
    ElseIf $Type = 8 Then
        Return 123
    ElseIf $Type = 9 Then
        Return 111
    ElseIf $Type = 10 Then
        Return 127
    ElseIf $Type = 11 Then
        Return 120
    ElseIf $Type = 12 Then
        Return 128
    ElseIf $Type = 13 Then
        Return 135
    ElseIf $Type = 14 Then
        Return 138
    ElseIf $Type = 15 Then
        Return 126
    ElseIf $Type = 16 Then
        Return 136
    ElseIf $Type = 17 Then
        Return 133
    ElseIf $Type = 18 Then
        Return 124
    ElseIf $Type = 19 Then
        Return 116
    ElseIf $Type = 20 Then
        Return 113
    ElseIf $Type = 21 Then
        Return 118
    ElseIf $Type = 22 Then
        Return 104
    EndIf
EndFunc

Any help would be appreciated :)

Resources.zip

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#include <GUITreeView.au3>

#include <TreeViewConstants.au3>

#include <GUIConstants.au3>



Global $GUITree, $hTree



$hGUI = GUICreate("Example", 500, 500, -1, -1)

GUICtrlCreateLabel("Add Item Type ( 1 - 22 )", 220, 20)

$hCombo = GUICtrlCreateCombo("", 220, 40, 50, 22, 0x0003)

GUICtrlSetData(-1, "1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22", "1")

$hCreate = GUICtrlCreateButton("Create Tree Item", 280, 39, 100, 22)

$hTree = GUICtrlCreateTreeView(10, 10, 200, 480, BitOR($TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS))

GUISetState()



$GUITree = _GUICtrlTreeView_Add($hTree, 0, "hGUI")

_GUICtrlTreeView_SetIcon($hTree, $GUITree, @ScriptDir & "Resources.dll", -119)

; _GUICtrlTreeView_SetIcon($hTree, $GUITree, "shell32.dll", 39)



While 1

    Switch GUIGetMsg()

        Case -3

            Exit

        Case $hCreate

            $hTreeItem = _AddTreeItem("Control Type " & GUICtrlRead($hCombo), GUICtrlRead($hCombo))

            _GUICtrlTreeView_Expand($hTree)

    EndSwitch

WEnd



Func _AddTreeItem($aName, $aType)

    $hItem = _GUICtrlTreeView_AddChild($hTree, $GUITree, $aName)

    _GUICtrlTreeView_SetIcon($hTree, $hItem, @ScriptDir & "Resources.dll", _GetIcon($aType))

    ; _GUICtrlTreeView_SetIcon($hTree, $hItem, "shell32.dll", _GetIcon($aType))

    Return $hItem

EndFunc



Func _GetIcon($Type)

    Switch $Type

        Case 1

            Return -122

        Case 2

            Return -102

        Case 3

            Return -121

        Case 4

            Return -114

        Case 5

            Return -105

        Case 6

            Return -129

        Case 7

            Return -107

        Case 8

            Return -123

        Case 9

            Return -111

        Case 10

            Return -127

        Case 11

            Return -120

        Case 12

            Return -128

        Case 13

            Return -135

        Case 14

            Return -138

        Case 15

            Return -126

        Case 16

            Return -136

        Case 17

            Return -133

        Case 18

            Return -124

        Case 19

            Return -116

        Case 20

            Return -113

        Case 21

            Return -118

        Case 22

            Return -104

    EndSwitch

EndFunc

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I'm trying to set a treeview icon using an icon from the Web, like this:

InetGet("https://www.fastmail.com/static/favicons/icon-64x64.png", @ScriptDir & "fastmail.png", 1, 1)
If Not FileExists(@ScriptDir & "fastmail.png") Then
    MsgBox(0, "Test", "Whoops! " & @ScriptDir & "\fastmail.png does not exist.")
EndIf

$SetIcon = _GUICtrlTreeView_SetIcon($Tree, $L2_item, @ScriptDir & "fastmail.png")
If $SetIcon = "False" Then
    MsgBox(0, "Test", "Whoops! Icon not set.")
EndIf

But it's not setting it. It does save the file, though.

I think the problem is that _GUICtrlTreeView_SetIcon() expects to retrieve an icon from an .exe or .dll rather than directly from an image file, like GUICtrlSetImage() does when setting an icon for a listview item or a button. But I don't know how to do that. Any idea? I'm building a treeview that shows bookmarks, and I want to display the icon for each bookmark.

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