Category : Files from Magazines
Archive : D-FLAT.ZIP
Filename : VIDEO.C
Output of file : VIDEO.C contained in archive : D-FLAT.ZIP
#include
#include
#include
#include
#include "dflat.h"
static unsigned video_address;
/* -- read a rectangle of video memory into a save buffer -- */
void getvideo(RECT rc, void far *bf)
{
int ht = RectBottom(rc)-RectTop(rc)+1;
int bytes_row = (RectRight(rc)-RectLeft(rc)+1) * 2;
unsigned vadr = vad(RectLeft(rc), RectTop(rc));
hide_mousecursor();
while (ht--) {
movedata(video_address, vadr, FP_SEG(bf),
FP_OFF(bf), bytes_row);
vadr += 160;
(char far *)bf += bytes_row;
}
show_mousecursor();
}
/* -- write a rectangle of video memory from a save buffer -- */
void storevideo(RECT rc, void far *bf)
{
int ht = RectBottom(rc)-RectTop(rc)+1;
int bytes_row = (RectRight(rc)-RectLeft(rc)+1) * 2;
unsigned vadr = vad(RectLeft(rc), RectTop(rc));
hide_mousecursor();
while (ht--) {
movedata(FP_SEG(bf), FP_OFF(bf), video_address,
vadr, bytes_row);
vadr += 160;
(char far *)bf += bytes_row;
}
show_mousecursor();
}
/* -------- read a character of video memory ------- */
int GetVideoChar(int x, int y)
{
int c;
hide_mousecursor();
c = peek(video_address, vad(x,y));
show_mousecursor();
return c;
}
/* -------- write a character of video memory ------- */
void PutVideoChar(int x, int y, int c)
{
if (x < SCREENWIDTH && y < SCREENHEIGHT) {
hide_mousecursor();
poke(video_address, vad(x,y), c);
show_mousecursor();
}
}
/* -------- write a character to a window ------- */
void wputch(WINDOW wnd, int c, int x, int y)
{
int x1 = GetClientLeft(wnd)+x;
int y1 = GetClientTop(wnd)+y;
if (x1 < SCREENWIDTH && y1 < SCREENHEIGHT) {
hide_mousecursor();
poke(video_address,
vad(x1,y1),(c & 255) |
(clr(foreground, background) << 8));
show_mousecursor();
}
}
/* ------- write a string to a window ---------- */
void wputs(WINDOW wnd, void *s, int x, int y)
{
int x1 = GetLeft(wnd)+x;
int y1 = GetTop(wnd)+y;
if (x1 < SCREENWIDTH && y1 < SCREENHEIGHT) {
int fg = foreground;
int bg = background;
unsigned char *str = s;
char ss[200];
int ln[SCREENWIDTH];
int *cp1 = ln;
int len;
strncpy(ss, s, 199);
ss[199] = '\0';
clipline(wnd, x, ss);
str = (unsigned char *) ss;
hide_mousecursor();
while (*str) {
if (*str == CHANGECOLOR) {
str++;
foreground = (*str++) & 0x7f;
background = (*str++) & 0x7f;
continue;
}
if (*str == RESETCOLOR) {
foreground = fg;
background = bg;
str++;
continue;
}
*cp1++ = (*str & 255) |
(clr(foreground, background) << 8);
str++;
}
foreground = fg;
background = bg;
len = (int)(cp1-ln);
if (x1+len > SCREENWIDTH)
len = SCREENWIDTH-x1;
movedata(FP_SEG(ln), FP_OFF(ln), video_address,
vad(x1,y1), len*2);
show_mousecursor();
}
}
/* --------- get the current video mode -------- */
void get_videomode(void)
{
videomode();
/* ---- Monochrome Display Adaptor or text mode ---- */
if (ismono())
video_address = 0xb000;
else
/* ------ Text mode -------- */
video_address = 0xb800 + video_page;
}
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/