Function DirList_IconThread

src/Dlapi.c:405–514

============================================================================= DirList_IconThread() Thread to extract file icons in the background

//  Thread to extract file icons in the background
//
DWORD WINAPI DirList_IconThread(LPVOID lpParam)
{

  HWND hwnd;

  LPDLDATA lpdl;
  LV_ITEM lvi;
  LPLV_ITEMDATA lplvid;

  IShellIcon* lpshi;

  int iItem = 0;
  int iMaxItem;

  lpdl = (LPDLDATA)lpParam;
  ResetEvent(lpdl->hTerminatedThread);

  // Exit immediately if DirList_Fill() hasn't been called
  if (!lpdl->lpsf) {
    SetEvent(lpdl->hTerminatedThread);
    ExitThread(0);
    return(0);
  }

  hwnd = lpdl->hwnd;
  iMaxItem = ListView_GetItemCount(hwnd);

  CoInitialize(NULL);

  // Get IShellIcon
  lpdl->lpsf->lpVtbl->QueryInterface(lpdl->lpsf,&IID_IShellIcon,&lpshi);

  while (iItem < iMaxItem && WaitForSingleObject(lpdl->hExitThread,0) != WAIT_OBJECT_0) {

    lvi.iItem = iItem;
    lvi.mask  = LVIF_PARAM;
    if (ListView_GetItem(hwnd,&lvi)) {

      SHFILEINFO shfi;
      LPITEMIDLIST pidl;
      DWORD dwAttributes = SFGAO_LINK | SFGAO_SHARE;

      lplvid = (LPLV_ITEMDATA)lvi.lParam;

      lvi.mask = LVIF_IMAGE;

      if (!lpshi || NOERROR != lpshi->lpVtbl->GetIconOf(lpshi,lplvid->pidl,GIL_FORSHELL,&lvi.iImage))
      {
        pidl = IL_Create(lpdl->pidl,lpdl->cbidl,lplvid->pidl,0);
        SHGetFileInfo((LPCWSTR)pidl,0,&shfi,sizeof(SHFILEINFO),SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON);
        CoTaskMemFree(pidl);
        lvi.iImage = shfi.iIcon;
      }

      // It proved necessary to reset the state bits...
      lvi.stateMask = 0;
      lvi.state = 0;