From Matthew Faithfull answer we get below code that create sub menu under existing sub menu.
#include "stdafx.h"
#include "OpenWithExt.h"
#include "OpenWithCtxMenuExt.h"
#pragma comment(lib,"shlwapi")
HRESULT COpenWithCtxMenuExt::Initialize ( LPCITEMIDLIST pidlFolder,
LPDATAOBJECT pDataObj,
HKEY hProgID )
{
FORMATETC fmt = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM stg = { TYMED_HGLOBAL };
HDROP hDrop;
if ( FAILED( pDataObj->GetData ( &fmt, &stg )))
{
return E_INVALIDARG;
}
hDrop = (HDROP) GlobalLock ( stg.hGlobal );
if ( NULL == hDrop )
return E_INVALIDARG;
UINT uNumFiles = DragQueryFile ( hDrop, 0xFFFFFFFF, NULL, 0 );
if ( 0 == uNumFiles )
{
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return E_INVALIDARG;
}
HRESULT hr = S_OK;
if ( 0 == DragQueryFile ( hDrop, 0, m_szSelectedFile, MAX_PATH ))
hr = E_INVALIDARG;
else
{
PathQuoteSpaces ( m_szSelectedFile );
}
GlobalUnlock ( stg.hGlobal );
ReleaseStgMedium ( &stg );
return hr;
}
HRESULT COpenWithCtxMenuExt::QueryContextMenu ( HMENU hmenu, UINT uMenuIndex,
UINT uidFirstCmd, UINT uidLastCmd,
UINT uFlags )
{
if ( uFlags & CMF_DEFAULTONLY )
return MAKE_HRESULT ( SEVERITY_SUCCESS, FACILITY_NULL, 0 );
HMENU hSubmenu = CreatePopupMenu();
HMENU hSub = CreatePopupMenu();
UINT uID = uidFirstCmd;
InsertMenu ( hSubmenu, 0, MF_BYPOSITION, uID++, _T("&Notepad") );
InsertMenu ( hSubmenu, 1, MF_BYPOSITION, uID++, _T("&Internet Explorer") );
InsertMenu ( hSubmenu, 2, MF_BYPOSITION, uID++, _T("&Mspaint") );
InsertMenu ( hSubmenu, 3, MF_BYPOSITION, uID++, _T("&Pop") );
InsertMenu ( hSub, 4, MF_BYPOSITION, uID++, _T("&Case") );
InsertMenu ( hSub, 5, MF_BYPOSITION, uID++, _T("&Case") );
MENUITEMINFO mii = { sizeof(MENUITEMINFO) };
mii.fMask = MIIM_SUBMENU | 0x00000040 | MIIM_ID;
mii.wID = uID++;
mii.hSubMenu = hSubmenu;
mii.dwTypeData = _T("Open With&x");
InsertMenuItem ( hmenu, uMenuIndex, TRUE, &mii );
mii.hSubMenu = hSub;
mii.dwTypeData = _T("Novi Subm&enu");
InsertMenuItem ( hSubmenu, uMenuIndex, TRUE, &mii );
return MAKE_HRESULT ( SEVERITY_SUCCESS, FACILITY_NULL, uID - uidFirstCmd );
}
HRESULT COpenWithCtxMenuExt::GetCommandString ( UINT idCmd, UINT uFlags,
UINT* pwReserved, LPSTR pszName,
UINT cchMax )
{
USES_CONVERSION;
if ( idCmd > 4 )
return E_INVALIDARG;
if ( uFlags & GCS_HELPTEXT )
{
LPCTSTR szNotepadText = _T("Open the selected file in Notepad");
LPCTSTR szIEText = _T("Open the selected file in Internet Explorer");
LPCTSTR szPintText = _T("Open the selected file with Mspaint");
LPCTSTR szPopText = _T("Popout");
LPCTSTR pszText;
if(idCmd == 0){
pszText = szNotepadText;
}
if(idCmd == 1){
pszText = szIEText;
}
if(idCmd == 2){
pszText = szPintText;
}
if(idCmd == 3){
pszText = szPopText;
}
if(idCmd == 4){
pszText = szPopText;
}
if ( uFlags & GCS_UNICODE )
{
lstrcpynW ( (LPWSTR) pszName, T2CW(pszText), cchMax );
}
else
{
lstrcpynA ( pszName, T2CA(pszText), cchMax );
}
return S_OK;
}
return E_INVALIDARG;
}
HRESULT COpenWithCtxMenuExt::InvokeCommand ( LPCMINVOKECOMMANDINFO pCmdInfo )
{
if ( 0 != HIWORD( pCmdInfo->lpVerb ))
return E_INVALIDARG;
switch ( LOWORD( pCmdInfo->lpVerb ))
{
case 0:
{
ShellExecute ( pCmdInfo->hwnd, _T("open"), _T("notepad.exe"),
m_szSelectedFile, NULL, SW_SHOW );
return S_OK;
}
break;
case 1:
{
ShellExecute ( pCmdInfo->hwnd, _T("open"), _T("iexplore.exe"),
m_szSelectedFile, NULL, SW_SHOW );
return S_OK;
}
break;
case 2:
{
ShellExecute ( pCmdInfo->hwnd, _T("open"), _T("mspaint.exe"),
m_szSelectedFile, NULL, SW_SHOW );
return S_OK;
}
break;
case 4:
{
MessageBox(0, "New command from sub menu", "Case 4", 0);
return S_OK;
}
break;
case 5:
{
MessageBox(0, "New second command from sub menu", "Case 5", 0);
return S_OK;
}
break;
default:
return E_INVALIDARG;
break;
}
}