--- /dev/null
+/***********************************************************
+* Rocks'n'Diamonds -- McDuffin Strikes Back! *
+*----------------------------------------------------------*
+* ©1995 Artsoft Development *
+* Holger Schemel *
+* 33659 Bielefeld-Senne *
+* Telefon: (0521) 493245 *
+* eMail: aeglos@valinor.owl.de *
+* aeglos@uni-paderborn.de *
+* q99492@pbhrzx.uni-paderborn.de *
+*----------------------------------------------------------*
+* msdos.h *
+***********************************************************/
+
+#ifndef MSDOS_H
+#define MSDOS_H
+
+#include <allegro.h>
+#include <time.h>
+
+/* symbol 'window' is defined in DJGPP cross-compiler in libc.a(conio.o) */
+#define window window_djgpp
+
+/* system dependent definitions */
+
+#define TARGET_STRING "DOS"
+
+/* allegro defines TRUE as -1 */
+#ifdef TRUE
+#undef TRUE
+#undef FALSE
+#endif
+
+#define TRUE 1
+#define FALSE 0
+
+#define XRES 800
+#define YRES 600
+
+/* additional Allegro keyboard mapping */
+
+/* The following are all undefined in Allegro */
+#define NEW_KEY_BACKSLASH 86
+#define NEW_KEY_1_PAD 101
+#define NEW_KEY_2_PAD 102
+#define NEW_KEY_3_PAD 103
+#define NEW_KEY_4_PAD 104
+#define NEW_KEY_5_PAD 105
+#define NEW_KEY_6_PAD 106
+#define NEW_KEY_7_PAD 107
+#define NEW_KEY_8_PAD 108
+#define NEW_KEY_9_PAD 109
+#define NEW_KEY_0_PAD 110
+#define NEW_KEY_STOP_PAD 111
+#define NEW_KEY_EQUALS_PAD 112
+#define NEW_KEY_SLASH_PAD 113
+#define NEW_KEY_ASTERISK_PAD 114
+#define NEW_KEY_ENTER_PAD 115
+
+/* X11 keyboard mapping (from 'keysymdef.h') */
+
+#define XK_VoidSymbol 0xFFFFFF /* void symbol */
+
+/*
+ * TTY Functions, cleverly chosen to map to ascii, for convenience of
+ * programming, but could have been arbitrary (at the cost of lookup
+ * tables in client code.
+ */
+
+#define XK_BackSpace 0xFF08 /* back space, back char */
+#define XK_Tab 0xFF09
+#define XK_Linefeed 0xFF0A /* Linefeed, LF */
+#define XK_Clear 0xFF0B
+#define XK_Return 0xFF0D /* Return, enter */
+#define XK_Pause 0xFF13 /* Pause, hold */
+#define XK_Scroll_Lock 0xFF14
+#define XK_Sys_Req 0xFF15
+#define XK_Escape 0xFF1B
+#define XK_Delete 0xFFFF /* Delete, rubout */
+
+/* International & multi-key character composition */
+
+#define XK_Multi_key 0xFF20 /* Multi-key character compose */
+#define XK_SingleCandidate 0xFF3C
+#define XK_MultipleCandidate 0xFF3D
+#define XK_PreviousCandidate 0xFF3E
+
+/* Cursor control & motion */
+
+#define XK_Home 0xFF50
+#define XK_Left 0xFF51 /* Move left, left arrow */
+#define XK_Up 0xFF52 /* Move up, up arrow */
+#define XK_Right 0xFF53 /* Move right, right arrow */
+#define XK_Down 0xFF54 /* Move down, down arrow */
+#define XK_Prior 0xFF55 /* Prior, previous */
+#define XK_Page_Up 0xFF55
+#define XK_Next 0xFF56 /* Next */
+#define XK_Page_Down 0xFF56
+#define XK_End 0xFF57 /* EOL */
+#define XK_Begin 0xFF58 /* BOL */
+
+/* Misc Functions */
+
+#define XK_Select 0xFF60 /* Select, mark */
+#define XK_Print 0xFF61
+#define XK_Execute 0xFF62 /* Execute, run, do */
+#define XK_Insert 0xFF63 /* Insert, insert here */
+#define XK_Undo 0xFF65 /* Undo, oops */
+#define XK_Redo 0xFF66 /* redo, again */
+#define XK_Menu 0xFF67
+#define XK_Find 0xFF68 /* Find, search */
+#define XK_Cancel 0xFF69 /* Cancel, stop, abort, exit */
+#define XK_Help 0xFF6A /* Help */
+#define XK_Break 0xFF6B
+#define XK_Mode_switch 0xFF7E /* Character set switch */
+#define XK_script_switch 0xFF7E /* Alias for mode_switch */
+#define XK_Num_Lock 0xFF7F
+
+/* Keypad Functions, keypad numbers cleverly chosen to map to ascii */
+
+#define XK_KP_Space 0xFF80 /* space */
+#define XK_KP_Tab 0xFF89
+#define XK_KP_Enter 0xFF8D /* enter */
+#define XK_KP_F1 0xFF91 /* PF1, KP_A, ... */
+#define XK_KP_F2 0xFF92
+#define XK_KP_F3 0xFF93
+#define XK_KP_F4 0xFF94
+#define XK_KP_Home 0xFF95
+#define XK_KP_Left 0xFF96
+#define XK_KP_Up 0xFF97
+#define XK_KP_Right 0xFF98
+#define XK_KP_Down 0xFF99
+#define XK_KP_Prior 0xFF9A
+#define XK_KP_Page_Up 0xFF9A
+#define XK_KP_Next 0xFF9B
+#define XK_KP_Page_Down 0xFF9B
+#define XK_KP_End 0xFF9C
+#define XK_KP_Begin 0xFF9D
+#define XK_KP_Insert 0xFF9E
+#define XK_KP_Delete 0xFF9F
+#define XK_KP_Equal 0xFFBD /* equals */
+#define XK_KP_Multiply 0xFFAA
+#define XK_KP_Add 0xFFAB
+#define XK_KP_Separator 0xFFAC /* separator, often comma */
+#define XK_KP_Subtract 0xFFAD
+#define XK_KP_Decimal 0xFFAE
+#define XK_KP_Divide 0xFFAF
+
+#define XK_KP_0 0xFFB0
+#define XK_KP_1 0xFFB1
+#define XK_KP_2 0xFFB2
+#define XK_KP_3 0xFFB3
+#define XK_KP_4 0xFFB4
+#define XK_KP_5 0xFFB5
+#define XK_KP_6 0xFFB6
+#define XK_KP_7 0xFFB7
+#define XK_KP_8 0xFFB8
+#define XK_KP_9 0xFFB9
+
+/*
+ * Auxilliary Functions; note the duplicate definitions for left and right
+ * function keys; Sun keyboards and a few other manufactures have such
+ * function key groups on the left and/or right sides of the keyboard.
+ * We've not found a keyboard with more than 35 function keys total.
+ */
+
+#define XK_F1 0xFFBE
+#define XK_F2 0xFFBF
+#define XK_F3 0xFFC0
+#define XK_F4 0xFFC1
+#define XK_F5 0xFFC2
+#define XK_F6 0xFFC3
+#define XK_F7 0xFFC4
+#define XK_F8 0xFFC5
+#define XK_F9 0xFFC6
+#define XK_F10 0xFFC7
+#define XK_F11 0xFFC8
+#define XK_L1 0xFFC8
+#define XK_F12 0xFFC9
+#define XK_L2 0xFFC9
+#define XK_F13 0xFFCA
+#define XK_L3 0xFFCA
+#define XK_F14 0xFFCB
+#define XK_L4 0xFFCB
+#define XK_F15 0xFFCC
+#define XK_L5 0xFFCC
+#define XK_F16 0xFFCD
+#define XK_L6 0xFFCD
+#define XK_F17 0xFFCE
+#define XK_L7 0xFFCE
+#define XK_F18 0xFFCF
+#define XK_L8 0xFFCF
+#define XK_F19 0xFFD0
+#define XK_L9 0xFFD0
+#define XK_F20 0xFFD1
+#define XK_L10 0xFFD1
+#define XK_F21 0xFFD2
+#define XK_R1 0xFFD2
+#define XK_F22 0xFFD3
+#define XK_R2 0xFFD3
+#define XK_F23 0xFFD4
+#define XK_R3 0xFFD4
+#define XK_F24 0xFFD5
+#define XK_R4 0xFFD5
+#define XK_F25 0xFFD6
+#define XK_R5 0xFFD6
+#define XK_F26 0xFFD7
+#define XK_R6 0xFFD7
+#define XK_F27 0xFFD8
+#define XK_R7 0xFFD8
+#define XK_F28 0xFFD9
+#define XK_R8 0xFFD9
+#define XK_F29 0xFFDA
+#define XK_R9 0xFFDA
+#define XK_F30 0xFFDB
+#define XK_R10 0xFFDB
+#define XK_F31 0xFFDC
+#define XK_R11 0xFFDC
+#define XK_F32 0xFFDD
+#define XK_R12 0xFFDD
+#define XK_F33 0xFFDE
+#define XK_R13 0xFFDE
+#define XK_F34 0xFFDF
+#define XK_R14 0xFFDF
+#define XK_F35 0xFFE0
+#define XK_R15 0xFFE0
+
+/* Modifiers */
+
+#define XK_Shift_L 0xFFE1 /* Left shift */
+#define XK_Shift_R 0xFFE2 /* Right shift */
+#define XK_Control_L 0xFFE3 /* Left control */
+#define XK_Control_R 0xFFE4 /* Right control */
+#define XK_Caps_Lock 0xFFE5 /* Caps lock */
+#define XK_Shift_Lock 0xFFE6 /* Shift lock */
+
+#define XK_Meta_L 0xFFE7 /* Left meta */
+#define XK_Meta_R 0xFFE8 /* Right meta */
+#define XK_Alt_L 0xFFE9 /* Left alt */
+#define XK_Alt_R 0xFFEA /* Right alt */
+#define XK_Super_L 0xFFEB /* Left super */
+#define XK_Super_R 0xFFEC /* Right super */
+#define XK_Hyper_L 0xFFED /* Left hyper */
+#define XK_Hyper_R 0xFFEE /* Right hyper */
+
+/*
+ * Latin 1
+ * Byte 3 = 0
+ */
+
+#define XK_space 0x020
+#define XK_exclam 0x021
+#define XK_quotedbl 0x022
+#define XK_numbersign 0x023
+#define XK_dollar 0x024
+#define XK_percent 0x025
+#define XK_ampersand 0x026
+#define XK_apostrophe 0x027
+#define XK_quoteright 0x027 /* deprecated */
+#define XK_parenleft 0x028
+#define XK_parenright 0x029
+#define XK_asterisk 0x02a
+#define XK_plus 0x02b
+#define XK_comma 0x02c
+#define XK_minus 0x02d
+#define XK_period 0x02e
+#define XK_slash 0x02f
+#define XK_0 0x030
+#define XK_1 0x031
+#define XK_2 0x032
+#define XK_3 0x033
+#define XK_4 0x034
+#define XK_5 0x035
+#define XK_6 0x036
+#define XK_7 0x037
+#define XK_8 0x038
+#define XK_9 0x039
+#define XK_colon 0x03a
+#define XK_semicolon 0x03b
+#define XK_less 0x03c
+#define XK_equal 0x03d
+#define XK_greater 0x03e
+#define XK_question 0x03f
+#define XK_at 0x040
+#define XK_A 0x041
+#define XK_B 0x042
+#define XK_C 0x043
+#define XK_D 0x044
+#define XK_E 0x045
+#define XK_F 0x046
+#define XK_G 0x047
+#define XK_H 0x048
+#define XK_I 0x049
+#define XK_J 0x04a
+#define XK_K 0x04b
+#define XK_L 0x04c
+#define XK_M 0x04d
+#define XK_N 0x04e
+#define XK_O 0x04f
+#define XK_P 0x050
+#define XK_Q 0x051
+#define XK_R 0x052
+#define XK_S 0x053
+#define XK_T 0x054
+#define XK_U 0x055
+#define XK_V 0x056
+#define XK_W 0x057
+#define XK_X 0x058
+#define XK_Y 0x059
+#define XK_Z 0x05a
+#define XK_bracketleft 0x05b
+#define XK_backslash 0x05c
+#define XK_bracketright 0x05d
+#define XK_asciicircum 0x05e
+#define XK_underscore 0x05f
+#define XK_grave 0x060
+#define XK_quoteleft 0x060 /* deprecated */
+#define XK_a 0x061
+#define XK_b 0x062
+#define XK_c 0x063
+#define XK_d 0x064
+#define XK_e 0x065
+#define XK_f 0x066
+#define XK_g 0x067
+#define XK_h 0x068
+#define XK_i 0x069
+#define XK_j 0x06a
+#define XK_k 0x06b
+#define XK_l 0x06c
+#define XK_m 0x06d
+#define XK_n 0x06e
+#define XK_o 0x06f
+#define XK_p 0x070
+#define XK_q 0x071
+#define XK_r 0x072
+#define XK_s 0x073
+#define XK_t 0x074
+#define XK_u 0x075
+#define XK_v 0x076
+#define XK_w 0x077
+#define XK_x 0x078
+#define XK_y 0x079
+#define XK_z 0x07a
+#define XK_braceleft 0x07b
+#define XK_bar 0x07c
+#define XK_braceright 0x07d
+#define XK_asciitilde 0x07e
+
+#define XK_nobreakspace 0x0a0
+#define XK_exclamdown 0x0a1
+#define XK_cent 0x0a2
+#define XK_sterling 0x0a3
+#define XK_currency 0x0a4
+#define XK_yen 0x0a5
+#define XK_brokenbar 0x0a6
+#define XK_section 0x0a7
+#define XK_diaeresis 0x0a8
+#define XK_copyright 0x0a9
+#define XK_ordfeminine 0x0aa
+#define XK_guillemotleft 0x0ab /* left angle quotation mark */
+#define XK_notsign 0x0ac
+#define XK_hyphen 0x0ad
+#define XK_registered 0x0ae
+#define XK_macron 0x0af
+#define XK_degree 0x0b0
+#define XK_plusminus 0x0b1
+#define XK_twosuperior 0x0b2
+#define XK_threesuperior 0x0b3
+#define XK_acute 0x0b4
+#define XK_mu 0x0b5
+#define XK_paragraph 0x0b6
+#define XK_periodcentered 0x0b7
+#define XK_cedilla 0x0b8
+#define XK_onesuperior 0x0b9
+#define XK_masculine 0x0ba
+#define XK_guillemotright 0x0bb /* right angle quotation mark */
+#define XK_onequarter 0x0bc
+#define XK_onehalf 0x0bd
+#define XK_threequarters 0x0be
+#define XK_questiondown 0x0bf
+#define XK_Agrave 0x0c0
+#define XK_Aacute 0x0c1
+#define XK_Acircumflex 0x0c2
+#define XK_Atilde 0x0c3
+#define XK_Adiaeresis 0x0c4
+#define XK_Aring 0x0c5
+#define XK_AE 0x0c6
+#define XK_Ccedilla 0x0c7
+#define XK_Egrave 0x0c8
+#define XK_Eacute 0x0c9
+#define XK_Ecircumflex 0x0ca
+#define XK_Ediaeresis 0x0cb
+#define XK_Igrave 0x0cc
+#define XK_Iacute 0x0cd
+#define XK_Icircumflex 0x0ce
+#define XK_Idiaeresis 0x0cf
+#define XK_ETH 0x0d0
+#define XK_Eth 0x0d0 /* deprecated */
+#define XK_Ntilde 0x0d1
+#define XK_Ograve 0x0d2
+#define XK_Oacute 0x0d3
+#define XK_Ocircumflex 0x0d4
+#define XK_Otilde 0x0d5
+#define XK_Odiaeresis 0x0d6
+#define XK_multiply 0x0d7
+#define XK_Ooblique 0x0d8
+#define XK_Ugrave 0x0d9
+#define XK_Uacute 0x0da
+#define XK_Ucircumflex 0x0db
+#define XK_Udiaeresis 0x0dc
+#define XK_Yacute 0x0dd
+#define XK_THORN 0x0de
+#define XK_Thorn 0x0de /* deprecated */
+#define XK_ssharp 0x0df
+#define XK_agrave 0x0e0
+#define XK_aacute 0x0e1
+#define XK_acircumflex 0x0e2
+#define XK_atilde 0x0e3
+#define XK_adiaeresis 0x0e4
+#define XK_aring 0x0e5
+#define XK_ae 0x0e6
+#define XK_ccedilla 0x0e7
+#define XK_egrave 0x0e8
+#define XK_eacute 0x0e9
+#define XK_ecircumflex 0x0ea
+#define XK_ediaeresis 0x0eb
+#define XK_igrave 0x0ec
+#define XK_iacute 0x0ed
+#define XK_icircumflex 0x0ee
+#define XK_idiaeresis 0x0ef
+#define XK_eth 0x0f0
+#define XK_ntilde 0x0f1
+#define XK_ograve 0x0f2
+#define XK_oacute 0x0f3
+#define XK_ocircumflex 0x0f4
+#define XK_otilde 0x0f5
+#define XK_odiaeresis 0x0f6
+#define XK_division 0x0f7
+#define XK_oslash 0x0f8
+#define XK_ugrave 0x0f9
+#define XK_uacute 0x0fa
+#define XK_ucircumflex 0x0fb
+#define XK_udiaeresis 0x0fc
+#define XK_yacute 0x0fd
+#define XK_thorn 0x0fe
+#define XK_ydiaeresis 0x0ff
+
+/* end of X11 keyboard mapping */
+
+#define MOUSE_FILENAME "mouse.pcx"
+#define JOYSTICK_FILENAME "joystick.cnf"
+
+#define screen myscreen
+
+#define XFlush(a)
+#define XGetImage(a,b,c,d,e,f,g,h) ((XImage *) NULL)
+#define XDisplayName(a) ((char *) NULL)
+#define XFreeColors(a,b,c,d,e)
+#define XSelectInput(a,b,c)
+#define XDefaultDepth(a,b) (8)
+#define XSetWMProperties(a,b,c,d,e,f,g,h,i)
+
+#define MAX_EVENT_BUFFER 256
+#define MAX_SCANCODES 128
+
+#define True 1
+#define False 0
+#define None 0L
+
+#define DUMMY_FILE ((void *) -1)
+#define DUMMY_MASK (-1)
+
+#define KeyPressMask (1L << 0)
+#define KeyReleaseMask (1L << 1)
+#define ButtonPressMask (1L << 2)
+#define ButtonReleaseMask (1L << 3)
+#define ButtonMotionMask (1L << 13)
+#define ExposureMask (1L << 15)
+#define StructureNotifyMask (1L << 17)
+#define FocusChangeMask (1L << 21)
+
+#define KeyPress 2
+#define KeyRelease 3
+#define ButtonPress 4
+#define ButtonRelease 5
+#define MotionNotify 6
+#define FocusIn 9
+#define FocusOut 10
+#define Expose 12
+#define UnmapNotify 18
+#define MapNotify 19
+#define ClientMessage 33
+
+#define GCForeground (1L << 2)
+#define GCBackground (1L << 3)
+#define GCGraphicsExposures (1L << 16)
+#define GCClipMask (1L << 19)
+
+#define NormalState 1 /* most applications want to start this way */
+#define InputHint (1L << 0)
+#define StateHint (1L << 1)
+#define IconPixmapHint (1L << 2)
+#define IconMaskHint (1L << 5)
+#define PSize (1L << 3) /* program specified size */
+#define PMinSize (1L << 4) /* program specified minimum size */
+#define PMaxSize (1L << 5) /* program specified maximum size */
+
+#define PCX_Success 0
+#define PCX_OpenFailed -1
+#define PCX_ReadFailed -2
+#define PCX_FileInvalid -3
+#define PCX_NoMemory -4
+#define PCX_ColorFailed -5
+
+#define BitmapSuccess 0
+#define BitmapOpenFailed 1
+#define BitmapFileInvalid 2
+#define BitmapNoMemory 3
+
+#define ZPixmap 2 /* depth == drawable depth */
+
+#define DefaultScreen(dpy) (((_XPrivDisplay)dpy)->default_screen)
+#define DefaultColormap(dpy, scr) (ScreenOfDisplay(dpy,scr)->cmap)
+#define ScreenOfDisplay(dpy, scr) (&((_XPrivDisplay)dpy)->screens[scr])
+#define BlackPixel(dpy, scr) (ScreenOfDisplay(dpy,scr)->black_pixel)
+#define WhitePixel(dpy, scr) (ScreenOfDisplay(dpy,scr)->white_pixel)
+#define RootWindow(dpy, scr) (ScreenOfDisplay(dpy,scr)->root)
+#define AllPlanes ((unsigned long)~0L)
+
+#define DefaultVisual(dpy, scr) (NULL)
+#define DefaultDepth(dpy, scr) (NULL)
+#define XDisplayWidth(dpy, scr) (XRES)
+#define XDisplayHeight(dpy, scr) (YRES)
+
+#define XGetPixel(ximage, x, y) \
+ ((*((ximage)->f.get_pixel))((ximage), (x), (y)))
+
+typedef unsigned long Pixel; /* Index into colormap */
+typedef unsigned long XID;
+typedef XID Window;
+typedef XID Drawable;
+typedef XID Pixmap;
+typedef XID Colormap;
+typedef XID KeySym;
+typedef XID GContext;
+typedef struct _XDisplay Display;
+typedef long Visual;
+typedef long XVisualInfo;
+typedef long Atom;
+typedef int Status;
+typedef int Bool;
+typedef int XComposeStatus; /* we don't need the real type */
+
+typedef struct _XGC
+{
+ GContext gid; /* protocol ID for graphics context */
+} *GC;
+
+typedef struct
+{
+ Colormap cmap; /* default color map */
+ Window root; /* root window id */
+ unsigned long white_pixel; /* white pixel value */
+ unsigned long black_pixel; /* black pixel value */
+ int x;
+ int y;
+ unsigned int width;
+ unsigned int height;
+ BITMAP *video_bitmap;
+} Screen;
+
+typedef struct _XDisplay
+{
+ int default_screen; /* default screen for operations */
+ Screen *screens; /* pointer to list of screens */
+ BITMAP *mouse_ptr;
+} *_XPrivDisplay;
+
+typedef struct _XImage
+{
+ struct funcs
+ {
+ unsigned long (*get_pixel) (struct _XImage *, int, int);
+ } f;
+} XImage;
+
+typedef struct
+{
+ long flags; /* marks which fields in this structure are defined */
+ int width, height; /* should set so old wm's don't mess up */
+ int min_width, min_height;
+ int max_width, max_height;
+} XSizeHints;
+
+typedef struct
+{
+ long flags; /* marks which fields in this structure are defined */
+ Bool input; /* does this application rely on the window manager to
+ get keyboard input? */
+ int initial_state; /* see below */
+ Pixmap icon_pixmap; /* pixmap to be used as icon */
+ Pixmap icon_mask; /* icon mask bitmap */
+} XWMHints;
+
+typedef struct
+{
+ char *res_name;
+ char *res_class;
+} XClassHint;
+
+typedef struct
+{
+ unsigned char *value; /* same as Property routines */
+} XTextProperty;
+
+typedef struct
+{
+ unsigned long foreground; /* foreground pixel */
+ unsigned long background; /* background pixel */
+ Bool graphics_exposures; /* boolean, should exposures be generated */
+ Pixmap clip_mask; /* bitmap clipping; other calls for rects */
+ int clip_x_origin; /* x origin for clipping */
+ int clip_y_origin; /* y origin for clipping */
+ unsigned long value_mask;
+} XGCValues;
+
+typedef struct
+{
+ int type;
+ int x, y;
+ int width, height;
+} XExposeEvent;
+
+typedef struct
+{
+ int type; /* of event */
+ int x, y; /* pointer x, y coordinates in event window */
+ unsigned int button; /* detail */
+} XButtonEvent;
+
+typedef struct
+{
+ int type;
+ int x, y; /* pointer x, y coordinates in event window */
+} XMotionEvent;
+
+typedef struct
+{
+ int type; /* of event */
+ unsigned int state; /* key or button mask */
+} XKeyEvent;
+
+typedef struct
+{
+ int type; /* FocusIn or FocusOut */
+} XFocusChangeEvent;
+
+typedef struct
+{
+ int type; /* ClientMessage */
+} XClientMessageEvent;
+
+typedef union _XEvent
+{
+ int type; /* must not be changed; first element */
+ XExposeEvent xexpose;
+ XButtonEvent xbutton;
+ XMotionEvent xmotion;
+ XKeyEvent xkey;
+} XEvent;
+
+void XMapWindow(Display *, Window);
+Display *XOpenDisplay(char *);
+Window XCreateSimpleWindow(Display *, Window, int, int,
+ unsigned int, unsigned int, unsigned int,
+ unsigned long, unsigned long);
+Status XStringListToTextProperty(char **, int, XTextProperty *);
+void XFree(void *);
+GC XCreateGC(Display *, Drawable, unsigned long, XGCValues *);
+void XSetClipMask(Display *, GC, Pixmap);
+void XSetClipOrigin(Display *, GC, int, int);
+void XFillRectangle(Display *, Drawable, GC, int, int,
+ unsigned int, unsigned int);
+Pixmap XCreatePixmap(Display *, Drawable, unsigned int, unsigned int,
+ unsigned int);
+void XSync(Display *, Bool);
+inline void XCopyArea(Display *, Drawable, Drawable, GC, int, int,
+ unsigned int, unsigned int, int, int);
+int Read_PCX_to_Pixmap(Display *, Window, GC, char *, Pixmap *, Pixmap *);
+int XReadBitmapFile(Display *, Drawable, char *,
+ unsigned int *, unsigned int *, Pixmap *, int *, int *);
+void XFreePixmap(Display *, Pixmap);
+void XFreeGC(Display *, GC);
+void XCloseDisplay(Display *);
+void XNextEvent(Display *, XEvent *);
+int XPending(Display *);
+KeySym XLookupKeysym(XKeyEvent *, int);
+int XLookupString(XKeyEvent *, char *, int, KeySym *, XComposeStatus *);
+void XSetForeground(Display *, GC, unsigned long);
+void XDrawLine(Display *, Drawable, GC, int, int, int, int);
+void XDestroyImage(XImage *);
+Bool XQueryPointer(Display *, Window, Window *, Window *, int *, int *,
+ int *, int *, unsigned int *);
+void XAutoRepeatOn(Display *);
+void XAutoRepeatOff(Display *);
+
+boolean MSDOSOpenAudio(void);
+boolean MSDOSCloseAudio(void);
+
+void NetworkServer(int, int);
+
+#endif /* MSDOS_H */