Function close_alert_window_enum

src/engine/execnt.c:1168–1208

 */

BOOL CALLBACK close_alert_window_enum( HWND hwnd, LPARAM lParam )
{
    char buf[ 7 ] = { 0 };
    PROCESS_INFORMATION const * const pi = (PROCESS_INFORMATION *)lParam;
    DWORD pid;
    DWORD tid;

    /* We want to find and close any window that:
     *  1. is visible and
     *  2. is a dialog and
     *  3. is displayed by any of our child processes
     */
    if (
        /* We assume hidden windows do not require user interaction. */
        !IsWindowVisible( hwnd )
        /* Failed to read class name; presume it is not a dialog. */
        || !GetClassNameA( hwnd, buf, sizeof( buf ) )
        /* All Windows system dialogs use the same Window class name. */
        || strcmp( buf, "#32770" ) )
        return TRUE;

    /* GetWindowThreadProcessId() returns 0 on error, otherwise thread id of
     * the window's message pump thread.
     */
    tid = GetWindowThreadProcessId( hwnd, &pid );
    if ( !tid || !is_parent_child( pi->dwProcessId, pid ) )
        return TRUE;

    /* Ask real nice. */
    PostMessageA( hwnd, WM_CLOSE, 0, 0 );

    /* Wait and see if it worked. If not, insist. */
    if ( WaitForSingleObject( pi->hProcess, 200 ) == WAIT_TIMEOUT )
    {
        PostThreadMessageA( tid, WM_QUIT, 0, 0 );
        WaitForSingleObject( pi->hProcess, 300 );
    }

    /* Done, we do not want to check any other windows now. */
    return FALSE;
}


static void close_alert( PROCESS_INFORMATION const * const pi )