Here is example in 02progress(043) - Toolbar with imageList and menu with small 16x16 bitmaps
on each menu item.
bitmaps are in attachment - so just add them into same folder.
'toolbar & menu example - o2 /26.3.2018
$ filename "Menu3.exe"
Include "rtl32.inc"
'#lookahead
'structures.......................
Type WNDCLASSEX
 cbSize        as int
 Style         as int
 lpfnwndproc   as sys
 cbClsextra    as int
 cbWndExtra    as int
 hInstance     as int
 hIcon         as int
 hCursor       as int
 hbrBackground as int
 lpszMenuName  as int
 lpszClassName as int
 hIconSm       AS int
End Type
Type POINTAPI
 x as INT
 y as INT
End Type
Type RECT
 Left   as INT
 Top    as INT
 Right  as INT
 Bottom as INT
End Type
Type MSG
 hwnd    as int
 message as int
 wParam  as int
 lParam  as int
 time    as dword
 pt      as POINTAPI
End Type
type NMHDR
  int    hwndFrom
  int     idFrom
  dword   code
  End type
'.............................
'constants
% IDI_WINLOGO     = 32517
% IDI_APPLICATION = 32512
% IDC_ARROW       = 32512
% CS_OWNDC        = 32
% CS_DBLCLKS      = 0x0008
% SW_NORMAL       = 1
% SW_SHOW         = 5
% WM_CREATE      = 1
% WM_DESTROY     = 2
% WM_PAINT       = 15
% WM_QUIT        = 18
% WM_SIZE        = 5
% WM_MOVE        = 3
% WM_CHAR        = 258
% WM_KEYDOWN     = 256
% WM_KEYUP       = 257
% WM_MOUSEMOVE   = 512
% WM_MBUTTONDOWN = 519
% WM_LBUTTONDOWN = 513
% WM_RBUTTONDOWN = 516
% WM_LBUTTONUP   = 514
% WM_RBUTTONUP   = 517
% WM_MBUTTONUP   = 520
% WM_USER        = 0x0400
% WS_OVERLAPPEDWINDOW = 0x00CF0000
% WS_intMENU          = 0x80000 
% WS_OVERLAPPED       = 0x00000000   
% WS_POPUP            = 0x80000000
% WS_DLGFRAME         = 0x400000
% WS_CHILD            = 0x40000000
% WS_VISIBLE          = 0x10000000
'defines...
INT WHITE_BRUSH = 8
' bitmaps
% BM_SETIMAGE     = 247
% MF_BYPOSITION   = &H400
% IMAGE_BITMAP    = 0
% COLOR_BTNFACE   = 15
% ILC_MASK        = 1
% ILC_COLOR8      = 8
% ILC_COLOR16     = 16
% PS_SOLID        = 0
% SRCCOPY         = 0xCC0020
'toolbar & tooltips constants ................................
% TOOLBARCLASSNAME = "ToolbarWindow32"
% TB_SETTOOLTIPS     = 1060
% TB_BUTTONSTRUCTSIZE = 1054
% TB_SETBUTTONSIZE = (WM_USER + 31)
% TB_SETBUTTONWIDTH = (WM_USER + 59)
% TB_ADDBITMAP = 1043
% TB_ADDBUTTONS = 1044
% TBSTATE_ENABLED = 4
% TBSTYLE_BUTTON = 0
% TBTOOLTIPS         = 256
% TBSTYLE_TOOLTIPS   = 0x0100
% TBSETTIP           = 9
% TTS_ALWAYSTIP      = 0x01
% TTS_NOPREFIX       = 0x02
% TTS_BALLOON        = 0x040 ' comctl32.dll v5.8 require
% TTM_ACTIVATE       = WM_USER+1
% TTM_ADDTOOL         = (WM_USER + 4)
% TTM_DELTOOL         = (WM_USER + 5)
% TTM_NEWTOOLRECT     = (WM_USER + 6)
% TTM_GETTOOLINFO     = (WM_USER + 8)
% TTM_SETTIPBKCOLOR   = (WM_USER + 19)
% TTM_SETTIPTEXTCOLOR = (WM_USER + 20)
% TTM_SETMAXTIPWIDTH  = (WM_USER + 24)
% TTM_UPDATETIPTEXT   = 1036
% TTDT_AUTOPOP        = 2
% TTDT_INITIAL        = 3
% TTF_IDISHWND        = 1
% TTF_CENTERTIP       = 2
% TTF_SUBCLASS        = 0x0010
% CCS_ADJUSTABLE      = 32
% CCS_NODIVIDER       = 64
% TBSTYLE_FLAT        = 2048
% TBSTYLE_LIST        = 0x01000
% TB_ADDBUTTONS       = WM_USER+21
% TB_SETIMAGELIST     = 1072
% TB_ADDBITMAP        = 1043
% TB_AUTOSIZE         = 1057
'..........................
 Type TOOLINFO
    cbSize      As int
    uFlags      As int
    hWnd        As int
    uId         As int
    cRect       As Rect
    hinst       As int
    lpszText    As int
End Type
'toolbar button UDT
TYPE TBBUTTON
	iBitmap       as int
	idCommand     as int
	fsState       as byte
	fsStyle       as byte
     bReserved[1]  as byte
	bReserved[1]  as byte 
	dwData        as dword
	iString       as int
End TYPE
TYPE TBADDBITMAP
     int hInst
     int nID
End TYPE 
Type NMHDR
      hwndFrom as int
      idFrom   as int
      code     as int
End Type
'typdef structure for intit_common_controlsEx
Type INITCOMMONCONTROLSEX_TYPE
	dword dwSize
	dword dwICC 
End Type
'dim user32   = LoadLibrary "user32.dll"
'bind user32
'(
'Sendmessage  SendMessageA
')
'declare toolbar function/ ret = SETTOOLBAR()
Declare Function SetToolbar (byval hwnd as INT,byval flag as INT,byval ex as INT,byval id as INT) As INT
Declare Function RGB(byval red as int,byval green as int,byval blue as int) as int
Declare Function SetToolTip (byval _tthwnd as INT) As INT
Declare SUB AddTButton(byval hwnd as int,byval cid as int,byval iNumber as int,byval tips as string)
'declarations...
Declare Function LoadImage Lib "user32.dll" Alias "LoadImageA" (ByVal hInst As INT, ByVal lpsz As String, ByVal dwType As INT, ByVal dwWidth As INT, ByVal dwHeight As INT, ByVal dwFlags As INT) As int
Declare Function LoadIcon         Lib "user32.dll"   Alias "LoadIconA" (ByVal hInstance As INT, ByVal lpIconName As Any) As INT
Declare Function LoadCursor       Lib "user32.dll"   Alias "LoadCursorA" (ByVal hInstance As INT, ByVal lpCursorName As Any) As INT
Declare Function GetModuleHandle  Lib "kernel32.dll" Alias "GetModuleHandleA" (int lpModuleName) as INT
Declare Function RegisterClassEx  Lib "user32.dll"   Alias "RegisterClassExA" (byref lpwcx as WNDCLASSEX) as INT
Declare Function CreateWindowEx   Lib "user32.dll"   Alias "CreateWindowExA" (byval dwExStyle AS INT,byval lpClassName AS STRING,byval lpWindowName AS STRING,byval dwStyle AS INT,byval x AS INT,byval y AS INT,byval nWidth AS INT,byval nHeight AS INT,byval hWndParent AS INT,byval hMenu AS INT,byval hInstance AS INT,byval lpParam AS INT) as INT
Declare Function TranslateMessage Lib "user32.dll"  (byref lpMsg as MSG) as INT
Declare Function DispatchMessage  Lib "user32.dll"   Alias "DispatchMessageA" (byref lpMsg as MSG) as INT
Declare Function GetMessage       Lib "user32.dll"   Alias "GetMessageA" (lpMsg As MSG, ByVal hWnd As INT, ByVal wMsgFilterMin As INT, ByVal wMsgFilterMax As INT) As INT
Declare Function ShowWindow       Lib "user32.dll"  (ByVal hWnd As INT, ByVal nCmdShow As INT) As INT
Declare Function UpdateWindow     Lib "user32.dll"  (ByVal lhwnd As INT) As INT
Declare Function DefWindowProc    Lib "user32.dll"  Alias "DefWindowProcA" (ByVal hWnd As INT, ByVal wMsg As INT, ByVal wParam As INT, ByVal lParam As INT) As INT
Declare Sub PostQuitMessage       Lib "user32.dll"  (ByVal nExitCode As INT)
Declare Function CreateSolidBrush Lib "gdi32.dll" (ByVal crColor As INT) As INT
Declare Function GetSysColor      Lib "user32.dll" (ByVal nIndex As INT) As INT
Declare Function DeleteObject  Lib "gdi32.dll" (ByVal hObject As INT) As INT
' COMMENT NEXT LINE  & UNcomment bind user32 () -------------------------------------------------------------------------------------------
Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hWnd As INT, ByVal dwMsg As INT, ByVal wParam As INT, lParam As Any) As INT
'! SendMessage Lib "user32.dll" Alias "SendMessageA" (byval hWnd As int,byval dwMsg As int,byval wParam As int, lParam As int) As int
! MoveWindow Lib "user32.dll" (ByVal hwnd As INT, ByVal x As INT, ByVal y As INT, ByVal nWidth As INT, ByVal nHeight As INT, ByVal bRepaint As INT) As INT
Declare Function SetFocus Lib "user32.dll" Alias "SetFocus" (ByVal hWnd As INT) As INT
Declare Function CreatePopupMenu Lib "user32.dll" () As INT 
Declare Function CreateMenu      Lib "user32.dll" () As INT 
Declare Function GetMenu         Lib "user32.dll" (ByVal hwnd As INT) As INT 
Declare Function SetMenu         Lib "user32.dll" (ByVal hwnd As INT, ByVal hMenu As INT) As INT 
Declare Function AppendMenu      Lib "user32.dll" Alias "AppendMenuA" (ByVal hMenu As INT, ByVal wFlags As INT, ByVal wIDNewItem As INT, ByVal lpNewItem As Any) As INT 
Declare Function DrawMenuBar     Lib "user32.dll" (ByVal hwnd As INT) As INT 
Declare Function DeleteMenu      Lib "user32.dll" (ByVal hMenu As INT, ByVal nPosition As INT, ByVal wFlags As INT) As INT 
Declare Function DestroyMenu     Lib "user32.dll" (ByVal hMenu As INT) As INT 
Declare Function TrackPopupMenu  Lib "user32.dll" (ByVal hMenu As INT, ByVal wFlags As INT, ByVal x As INT, ByVal y As INT, ByVal nReserved As INT, ByVal hwnd As INT, lprc As RECT) As INT
! SetMenuItemBitmaps Lib "user32.dll" (ByVal hMenu As Long, ByVal nPosition As Long, ByVal wFlags As Long, ByVal hBitmapUnchecked As Long, ByVal hBitmapChecked As Long) As Long 
'///  COMCTL32.DLL  ///////////
'Declare  InitCommonControlsEx Lib "comctl32.dll" (INITCOMMONCONTROLSEX_TYPE *ic) as int
Declare Function InitCommonControlsEx Lib "comctl32.dll" (icc As INITCOMMONCONTROLSEX_TYPE) As int
Declare Function ImageList_Create Lib "comctl32.dll" (byval cx as int,byval cy as int,byval flags as int,byval cInitial as int,byval cGrow as int) as int
Declare Function ImageList_Add Lib "comctl32.dll" (ByVal cx As Int, ByVal cy As Int ByVal flags As uint, ByVal cInitial as Int, ByVal cGrow as Int) As int
Declare Function ImageList_AddMasked Lib "comctl32.dll" (byval hImageList as int,byval hBitmap as int,byval crMask as int) as int
Dim wcx as WNDCLASSEX
Dim wm as MSG
Dim win,style, Wx, Wy, Ww, Wh, wparent as INT
Dim wcaption,ClassName as String
'wcaption  = "MyWindow"
classname = "Oxygen"
style   = WS_OVERLAPPEDWINDOW
Wx=100 : Wy=100 : Ww=640 : Wh=480
wparent = 0 'HWND_DESKTOP
'-------------------------------
'FILL WNDCLASSEX structure
inst = GetModuleHandle 0
wcx.cbSize        = SizeOf(WNDCLASSEX)
wcx.style         = CS_DBLCLKS | CS_OWNDC 
wcx.lpfnWndProc   = &WndProc
wcx.cbClsExtra    = 0
wcx.cbWndExtra    = 0
wcx.hInstance     = inst
wcx.hIcon         = LoadIcon 0,IDI_APPLICATION         
wcx.hCursor       = LoadCursor 0,IDC_ARROW  
wcx.hbrBackground =  CreateSolidBrush(GetSysColor(15))    
wcx.lpszMenuName  = strptr ""
wcx.lpszClassName = strptr Classname
wcx.hIconSm       = 0
RegisterClassEx wcx
wcaption  = "My Menu"
'create window -------------------------------
win = CreateWindowEx 0,ClassName , wcaption, style, Wx, Wy, Ww, Wh, wparent, 0, inst,0
ShowWindow win,SW_SHOW
'create Menu --------------------------------------------------------- 
'Appendmenu hMenu , wFlags, wIDNewItem, lpNewItem
INT mainMenu,submenu1,submenu2
INT mImg1 = LoadImage(0, "iNew.bmp", 0, 16, 16, 24)
INT mImg2 = LoadImage(0, "iOpen.bmp", 0, 16, 16, 24)
INT mImg3 = LoadImage(0, "iSave.bmp", 0, 16, 16, 24)
INT mImg4 = LoadImage(0, "iQuit.bmp", 0, 16, 16, 24)
mainMenu = CreateMenu()
'...............................................
submenu1 = CreatePopupMenu ()
'addsub menu items with ID
	AppendMenu (submenu1, 0,120,strptr "New")
		SetMenuItemBitmaps(submenu1, 0,MF_BYPOSITION , mImg1, 0) 'add menu item bitmap
	AppendMenu (submenu1,0,121,strptr "Open")
		SetMenuItemBitmaps(submenu1, 1,MF_BYPOSITION , mImg2, 0) 
	AppendMenu (submenu1,0,122,strptr "Save")
		SetMenuItemBitmaps(submenu1, 2,MF_BYPOSITION , mImg3, 0) 
	AppendMenu (submenu1,0,123,strptr "Quit")
		SetMenuItemBitmaps(submenu1, 3,MF_BYPOSITION , mImg4, 0) 
'set submwnu1 on main menu
AppendMenu (mainMenu,16,submenu1,strptr "File")
'...............................................
submenu2 = CreatePopupMenu ()
'addsub menu items with ID
	AppendMenu (submenu2,0,124,strptr "Undo")
	AppendMenu (submenu2,0,125,strptr "Cut")
	AppendMenu (submenu2,0,126,strptr "Copy")
	AppendMenu (submenu2,0,127,strptr "Paste")
'set submwnu1 on main menu
AppendMenu (mainMenu,16,submenu2,strptr "Edit")
'...............................................
SetMenu  win ,mainMenu 
'-----------------------------------------------
'TOOLBAR-------------------------------------------------------------
TBBUTTON tbb
TOOLINFO tti
Dim AddBmp as TBADDBITMAP
' setting common control mode 
Dim ic as INITCOMMONCONTROLSEX_TYPE
  ic.dwSize = SizeOf(ic) 
  ic.dwICC  = 4
' initialize common controls 32 
InitCommonControlsEx(ic)
with Addbmp
  .hinst = -1
  .nID   =  0
End with
int htbar
INT toolID = 99
'add handlers
INT  hImageList,hImage,maskRet,
'create toolbar -----------------------------------------------------
'htbar = SetToolbar ( hwnd, style, index, toolID)
htbar = SetToolBar (win, 0, 0, toolID)
'Properly resize toolbar to fit each image 24x24 image segment,h=32
MoveWindow(htbar, 0, 0, 434, 32, 0)
indexbase 0
' Set the imagelist used with default images
hImageList = ImageList_Create(24, 24, ILC_MASK | ILC_COLOR8, 1, 0)
hImage     = LoadImage(0, "rCodetb24.bmp", 0, 336, 24, 24)
'print "IMAGE " + str(hImage)
maskRet    = ImageList_AddMasked hImageList,byval hImage, RGB(231,223,231)
'print "MASK " + str(maskRet)
DeleteObject hImage
'set image list  
SendMessage htbar, 1072, 0,byval hImageList  'use byval for imageList handler
'set button structure size
SendMessage htbar , 1054, sizeof(tbb), null
'TBUTTONS & TOOLTIPS -------------------------------------------------
INT tooltip
tooltip = SetToolTip(htbar)
AddTButton(htbar, 100, 0, "New File")
AddTButton(htbar, 101, 1, "Open File")
AddTButton(htbar, 102, 2, "Save As...")
AddTButton(htbar, 103, 3, "Save File")
AddTButton(htbar, 104, 4, "Close File")
AddTButton(htbar, 105, 5, "ASCI Table")
AddTButton(htbar, 106, 6, "Parser")
AddTButton(htbar, 107, 7, "Compile::")
AddTButton(htbar, 108, 8, "Run")
AddTButton(htbar, 109, 9, "Web Site")
AddTButton(htbar, 110, 10, "Info")
AddTButton(htbar, 111, 11, "Find")
AddTButton(htbar, 112, 12, "Options")
AddTButton(htbar, 113, 13, "Help")
SetFocus win
'message loop
While GetMessage(wm,0,0,0)
     TranslateMessage wm
     DispatchMessage  wm
Wend
'main callback procedure ---------------------------------------
Function WndProc (sys hwnd,wMsg,wParam,lParam) as sys callback
Select wMsg
	Case WM_DESTROY
	PostQuitMessage 0
End Select
Return DefWindowProc(Hwnd,wMsg,wParam,lParam)
End Function
'------------------------------------------
Function SetToolbar (byval _tbhwnd as int ,byval _tbflag as INT,byval _ex as INT,byval cID as INT) As INT
INT _hfont
INT  TBSTYLES = TBSTYLE_FLAT | WS_VISIBLE | WS_CHILD 
  If _tbflag = 0
  '_tbflag =  TBSTYLES
  'ELSE
  _tbflag =  1342179328 | TBSTYLES | 4 | &H100
  End If
  
hTBControl = CreateWindowEx(_ex, TOOLBARCLASSNAME,null,_tbflag,0,0,0,0,_tbhwnd, cID,0,0)
  'SendMessage hTBControl, TB_SETBUTTONSIZE, 0, 32
' _hfont = GetStockObject(17)
 'SendMessage hTBControl,WM_SETFONT,_hfont,0ž
  Showwindow htbcontrol,1
  UpdateWindow _tbhwnd
Function = hTBControl
'End Function
End Function
'---------------------------------------------------
SUB AddTButton(byval twnd as int,byval id as int,byval iNum as int,byval tip as string)
'TOOLINFO tti
 tti.cbSize = SizeOf(tti)
 tti.uFlags = 0  'TTF_SUBCLASS | TTF_IDISHWND
 tti.hwnd   = twnd
 tti.uId    = id
 tti.hinst  = 0
 tti.lpszText = strPtr tip
SendMessage(SendMessage( htbar, 1059,0,0),1028, 0, tti)
string  number = str(inum)
'add button
tbb.iBitmap   = iNum
tbb.idCommand = id
tbb.fsState   = 4
tbb.fsStyle   = 0  
tbb.dwData    = 0
'tbb.iString   = strptr number
SendMessage htbar , tb_addbuttons, iNum, tbb
'SendMessage htbar, TB_SETBUTTONWIDTH, 0, 0
'SendMessage htbar, 1052, 0, 0
End SUB 
'=====================================================================================
'set tooltip control
Function SetToolTip (byval _tthwnd as INT) As INT
INT _hfont
hTTControl = CreateWindowEx(0,"tooltips_class32","", -805306368,0,0,0,0,_tthwnd,0,0,0)
SendMessage( _tthwnd, 1060, hTTControl,0)
Function = hTTControl
End Function
'----------------------------------------------------
Function RGB(byval red as INT,byval green as INT,byval blue as int) as int
  int color
  color = red
  color = color + green*256
  color = color + blue*65536
  Return color
End Function