is_inside_bitmap(3alleg4) Allegro manual is_inside_bitmap(3alleg4)NAME
is_inside_bitmap - Tells if a point is inside a bitmap. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int is_inside_bitmap(BITMAP *bmp, int x, int y, int clip);
DESCRIPTION
Returns non-zero if point (x, y) lies inside the bitmap. If `clip' is non-zero, the function compares the coordinates with the clipping
rectangle, that is it returns non-zero if the point lies inside the clipping rectangle or if clipping is disabled for the bitmap. If `clip'
is zero, the function compares the coordinates with the actual dimensions of the bitmap.
SEE ALSO set_clip_rect(3alleg4), set_clip_state(3alleg4), getpixel(3alleg4)Allegro version 4.4.2 is_inside_bitmap(3alleg4)
Check Out this Related Man Page
getpixel(3alleg4) Allegro manual getpixel(3alleg4)NAME
getpixel - Reads a pixel from a bitmap. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int getpixel(BITMAP *bmp, int x, int y);
DESCRIPTION
Reads a pixel from point (x, y) in the bitmap.
RETURN VALUE
Returns -1 if the point lies outside the bitmap (ignoring the clipping rectangle), otherwise the value of the pixel in the color format of
the bitmap.
Warning: -1 is also a valid value for pixels contained in 32-bit bitmaps with alpha channel (when R,G,B,A are all equal to 255) so you
can't use the test against -1 as a predicate for such bitmaps. In this cases, the only reliable predicate is is_inside_bitmap().
To extract the individual color components, use the getr() / getg() / getb() / geta() family of functions.
SEE ALSO putpixel(3alleg4), _getpixel(3alleg4), is_inside_bitmap(3alleg4), getr(3alleg4), getg(3alleg4), getb(3alleg4), geta(3alleg4),
ex12bit(3alleg4), exalpha(3alleg4), exflame(3alleg4), exlights(3alleg4)Allegro version 4.4.2 getpixel(3alleg4)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)
Greetings,
I'm trying to delete a file with a weird name from within Terminal on a Mac.
It's a very old file (1992) with null characters in the name: ââWord FinderÂŽ Plusâ˘.
Here are some examples of what I've tried:
12FX009:5 dpontius$ ls
ââWord FinderÂŽ Plusâ˘
12FX009:5 dpontius$ rm... (29 Replies)