HWND WINAPI HtmlHelpA	(	HWND	caller,
		LPCSTR	filename,
		UINT	command,
		DWORD_PTR	data
	)
Definition at line 208 of file hhctrl.c.
{
    WCHAR *wfile = NULL, *wdata = NULL;
    DWORD len;
    HWND result;

    if (filename)
    {
        len = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
        wfile = heap_alloc(len*sizeof(WCHAR));
        MultiByteToWideChar( CP_ACP, 0, filename, -1, wfile, len );
    }

    if (data)
    {
        switch(command)
        {
        case HH_ALINK_LOOKUP:
        case HH_DISPLAY_SEARCH:
        case HH_DISPLAY_TEXT_POPUP:
        case HH_GET_LAST_ERROR:
        case HH_GET_WIN_TYPE:
        case HH_KEYWORD_LOOKUP:
        case HH_SET_WIN_TYPE:
        case HH_SYNC:
            FIXME("structures not handled yet\n");
            break;

        case HH_DISPLAY_INDEX:
        case HH_DISPLAY_TOPIC:
        case HH_DISPLAY_TOC:
        case HH_GET_WIN_HANDLE:
        case HH_SAFE_DISPLAY_TOPIC:
            len = MultiByteToWideChar( CP_ACP, 0, (const char*)data, -1, NULL, 0 );
            wdata = heap_alloc(len*sizeof(WCHAR));
            MultiByteToWideChar( CP_ACP, 0, (const char*)data, -1, wdata, len );
            break;

        case HH_CLOSE_ALL:
        case HH_HELP_CONTEXT:
        case HH_INITIALIZE:
        case HH_PRETRANSLATEMESSAGE:
        case HH_TP_HELP_CONTEXTMENU:
        case HH_TP_HELP_WM_HELP:
        case HH_UNINITIALIZE:
            /* either scalar or pointer to scalar - do nothing */
            break;

        default:
            FIXME("Unknown command: %s (%d)\n", command_to_string(command), command);
            break;
        }
    }

    result = HtmlHelpW( caller, wfile, command, wdata ? (DWORD_PTR)wdata : data );

    heap_free(wfile);
    heap_free(wdata);
    return result;
}
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