if (stream = stderr) msg_id = WM_STD_ERR_CHAR;
if (stream == stderr) msg_id = WM_STD_ERR_CHAR;
void tell_char(FILE *stream, char c){    if (!gui_mode)	fputc(c, stream);    else    {	unsigned int msg_id = WM_STD_OUT_CHAR;	if (stream = stderr) msg_id = WM_STD_ERR_CHAR;	send_msg( (HWND)atoi(gui_hwnd), msg_id, (WPARAM)c );    }}