#define MENU_SAVED_STEP 16
/* Maximum number of sessions on saved-session submenu */
#define MENU_SAVED_MAX ((IDM_SAVED_MAX-IDM_SAVED_MIN) / MENU_SAVED_STEP)

#define WM_IGNORE_CLIP (WM_APP + 2)
#define WM_FULLSCR_ON_MAX (WM_APP + 3)
#define WM_AGENT_CALLBACK (WM_APP + 4)
#define WM_GOT_CLIPDATA (WM_APP + 6)

/* Needed for Chinese support and apparently not always defined. */
#ifndef VK_PROCESSKEY
#define VK_PROCESSKEY 0xE5
#endif

/* Mouse wheel support. */

static void update_savedsess_menu(void);
static void init_flashwindow(void);

static int is_full_screen(void);
static void make_full_screen(void);
static void clear_full_screen(void);
static void flip_full_screen(void);
static int process_clipdata(HGLOBAL clipdata, int unicode);

/* Window layout information */
static void reset_window(int);
static int extra_width, extra_height;
static int font_width, font_height, font_dualwidth;
static int offset_width, offset_height;
static int was_zoomed = 0;

static struct unicode_data ucsdata;
static int must_close_session, session_closed;
static int reconfiguring = FALSE;

static const struct telnet_special *specials = NULL;
static HMENU specials_menu = NULL;
static int n_specials = 0;

static wchar_t *clipboard_contents;
static size_t clipboard_length;

#define TIMING_TIMER_ID 1234
static long timing_next_time;

static struct {
    HMENU menu;
} popup_menus[2];

      case WM_AGENT_CALLBACK:
	{
	    struct agent_callback *c = (struct agent_callback *)lParam;
	    c->callback(c->callback_ctx, c->data, c->len);
	    sfree(c);
	}
	return 0;
      case WM_GOT_CLIPDATA:
	if (process_clipdata((HGLOBAL)lParam, wParam))
	    term_do_paste(term);
	return 0;
      default:
	if (message == wm_mousewheel || message == WM_MOUSEWHEEL) {
	    int shift_pressed=0, control_pressed=0;

	    if (message == WM_MOUSEWHEEL) {
		wheel_accumulator += (short)HIWORD(wParam);
		shift_pressed=LOWORD(wParam) & MK_SHIFT;

     */
    if (wParam == VK_MENU && !cfg.alt_only)
	return 0;

    return -1;
}











void set_title(void *frontend, char *title)
{
    sfree(window_name);
    window_name = snewn(1 + strlen(title), char);
    strcpy(window_name, title);
    if (cfg.win_name_always || !IsIconic(hwnd))
	SetWindowText(hwnd, title);

	GlobalFree(clipdata2);
    }

    if (!must_deselect)
	SendMessage(hwnd, WM_IGNORE_CLIP, FALSE, 0);
}

static DWORD WINAPI clipboard_read_threadfunc(void *param)
{
    HWND hwnd = (HWND)param;
    HGLOBAL clipdata;












    if (OpenClipboard(NULL)) {
	if ((clipdata = GetClipboardData(CF_UNICODETEXT))) {
	    SendMessage(hwnd, WM_GOT_CLIPDATA, (WPARAM)1, (LPARAM)clipdata);
	} else if ((clipdata = GetClipboardData(CF_TEXT))) {
	    SendMessage(hwnd, WM_GOT_CLIPDATA, (WPARAM)0, (LPARAM)clipdata);
	}
	CloseClipboard();
    }

    return 0;
}

static int process_clipdata(HGLOBAL clipdata, int unicode)
{
    static wchar_t *converted = 0;

    sfree(clipboard_contents);
    clipboard_contents = NULL;
    clipboard_length = 0;

    if (unicode) {
	wchar_t *p = GlobalLock(clipdata);
	wchar_t *p2;

	if (p) {
	    /* Unwilling to rely on Windows having wcslen() */
	    for (p2 = p; *p2; p2++);
	    clipboard_length = p2 - p;
	    clipboard_contents = snewn(clipboard_length + 1, wchar_t);
	    memcpy(clipboard_contents, p, clipboard_length * sizeof(wchar_t));
	    clipboard_contents[clipboard_length] = L'\0';
	    return TRUE;
	}
    } else {
	char *s = GlobalLock(clipdata);
	int i;


	if (s) {
	    i = MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1, 0, 0);
	    clipboard_contents = snewn(i, wchar_t);
	    MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1,
				clipboard_contents, i);
	    clipboard_length = i - 1;
	    clipboard_contents[clipboard_length] = L'\0';
	    return TRUE;


	}
    }

    return FALSE;
}

void request_paste(void *frontend)
{
    /*
     * I always thought pasting was synchronous in Windows; the
     * clipboard access functions certainly _look_ synchronous,
     * unlike the X ones. But in fact it seems that in some
     * situations the contents of the clipboard might not be
     * immediately available, and the clipboard-reading functions
     * may block. This leads to trouble if the application
     * delivering the clipboard data has to get hold of it by -
     * for example - talking over a network connection which is
     * forwarded through this very PuTTY.
     *
     * Hence, we spawn a subthread to read the clipboard, and do
     * our paste when it's finished. The thread will send a
     * message back to our main window when it terminates, and
     * that tells us it's OK to paste.
     */
    DWORD in_threadid; /* required for Win9x */
    CreateThread(NULL, 0, clipboard_read_threadfunc,
		 hwnd, 0, &in_threadid);
}

void get_clip(void *frontend, wchar_t **p, int *len)
{
    if (p) {
	*p = clipboard_contents;
	*len = clipboard_length;
    }
}

#if 0
/*
 * Move `lines' lines from position `from' to position `to' in the
 * window.
 */