Utility Library

some usefull utilities function. This library doesn't contain any AES call. More...

Functions
short	rc_copy (const GRECT *src, GRECT *dst)
short	rc_equal (const GRECT *r1, const GRECT *r2)
short	rc_intersect (const GRECT *src, GRECT *dst)
GRECT *	array_to_grect (const short *array, GRECT *area)
short *	grect_to_array (const GRECT *area, short *array)

Detailed Description

some usefull utilities function. This library doesn't contain any AES call.

Function Documentation

GRECT* array_to_grect	(	const short *	array,
		GRECT *	area
	)

transform a PXY-array structure to a GRECT structure

Parameters

array	specify the area using a PXY-array
area	will then contain the area in a GRECT structure

Returns

area is returned.

See also

grect_to_array()

References graphic_rectangle::g_h, graphic_rectangle::g_w, graphic_rectangle::g_x, and graphic_rectangle::g_y.

short* grect_to_array	(	const GRECT *	area,
		short *	array
	)

transform a GRECT structure to a PXY-array structure

Parameters

area	specify the area using a GRECT structure
array	will then contain the area in a PXY-array

Returns

array is returned.

See also

array_to_grect()

References graphic_rectangle::g_h, graphic_rectangle::g_w, graphic_rectangle::g_x, and graphic_rectangle::g_y.

short rc_copy	(	const GRECT *	src,
		GRECT *	dst
	)

copy a GRECT structure

Parameters

src
dst

Returns

always 1.

short rc_equal	(	const GRECT *	p1,
		const GRECT *	p2
	)

return non-zero value if both area are equal

Parameters

p1	an area
p2	an other area

Returns

0 if p1 and p2 are not the same area, any other value (not 0) otherwise (p1 equal p2).

short rc_intersect	(	const GRECT *	r1,
		GRECT *	r2
	)

Compute the interesection of two rectangles

Parameters

r1	the first rectangle
r2	the other rectangle. The intersection area will be returned in r2.

Returns

0 if theses rectangle don't have any common area, any other value value if the intersection exist. Then, r2 will contain the common area.

References graphic_rectangle::g_h, graphic_rectangle::g_w, graphic_rectangle::g_x, and graphic_rectangle::g_y.