1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/***********************************************************************/
/* */
/* Objective Caml */
/* */
/* Jacob Navia, after Xavier Leroy */
/* */
/* Copyright 2001 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
/* $Id: libgraph.h 6553 2004-07-13 12:25:21Z xleroy $ */
#include <stdio.h>
#include <windows.h>
#include <windowsx.h>
struct canvas {
int w, h; /* Dimensions of the drawable */
HWND win; /* The drawable itself */
HDC gc; /* The associated graphics context */
};
extern HWND grdisplay; /* The display connection */
extern COLORREF grbackground;
extern BOOL grdisplay_mode; /* Display-mode flag */
extern BOOL grremember_mode; /* Remember-mode flag */
extern int grx, gry; /* Coordinates of the current point */
extern int grcolor; /* Current *CAML* drawing color (can be -1) */
extern HFONT * grfont; /* Current font */
extern BOOL direct_rgb;
extern int byte_order;
extern int bitmap_unit;
extern int bits_per_pixel;
#define Wcvt(y) (grwindow.height - 1 - (y))
#define Bcvt(y) (grwindow.height - 1 - (y))
#define WtoB(y) ((y) + WindowRect.bottom - grwindow.h)
#define DEFAULT_SCREEN_WIDTH 1024
#define DEFAULT_SCREEN_HEIGHT 768
#define BORDER_WIDTH 2
#define WINDOW_NAME "Caml graphics"
#define ICON_NAME "Caml graphics"
#define SIZE_QUEUE 256
void gr_fail(char *fmt, char *arg);
void gr_check_open(void);
CAMLprim value caml_gr_set_color(value vcolor);
// Windows specific definitions
extern RECT WindowRect;
extern int grCurrentColor;
typedef struct tagWindow {
HDC gc;
HDC gcBitmap;
HWND hwnd;
HBRUSH CurrentBrush;
HPEN CurrentPen;
DWORD CurrentColor;
int width;
int height;
int grx;
int gry;
HBITMAP hBitmap;
HFONT CurrentFont;
int CurrentFontSize;
HDC tempDC; // For image operations;
} GR_WINDOW;
extern GR_WINDOW grwindow;
HFONT CreationFont(char *name);
extern void caml_gr_init_event_queue(void);
extern void caml_gr_handle_event(UINT msg, WPARAM wParam, LPARAM lParam);
|
