'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_ImageCopyArea 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_ImageCopyArea \- copy an area
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_ImageCopyArea\fR(\fBmlib_image *\fR\fIimg\fR, \fBmlib_s32\fR \fIx\fR, \fBmlib_s32\fR \fIy\fR,
     \fBmlib_s32\fR \fIw\fR, \fBmlib_s32\fR \fIh\fR, \fBmlib_s32\fR \fIdx\fR, \fBmlib_s32\fR \fIdy\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBmlib_ImageCopyArea()\fR function copies a specified rectangular area from one portion of the image to another portion of the same image. The data type of the image can be \fBMLIB_BIT\fR, \fBMLIB_BYTE\fR, \fBMLIB_SHORT\fR, \fBMLIB_USHORT\fR, \fBMLIB_INT\fR, \fBMLIB_FLOAT\fR, or \fBMLIB_DOUBLE\fR.
.sp
.LP
It uses the following equation:
.sp
.in +2
.nf
img[x+dx+i][y+dy+j][i] = img[x+i][y+j][i]
.fi
.in -2

.sp
.LP
where \fBi = 0, 1, ..., w-1; j = 0, 1, ..., h-1\fR.
.SH PARAMETERS
.sp
.LP
The function takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIimg\fR\fR
.ad
.RS 7n
.rt  
Pointer to source image.
.RE

.sp
.ne 2
.mk
.na
\fB\fIx\fR\fR
.ad
.RS 7n
.rt  
X coordinate of the area origin in the source.
.RE

.sp
.ne 2
.mk
.na
\fB\fIy\fR\fR
.ad
.RS 7n
.rt  
Y coordinate of the area origin in the source.
.RE

.sp
.ne 2
.mk
.na
\fB\fIw\fR\fR
.ad
.RS 7n
.rt  
Width of the area to be copied.
.RE

.sp
.ne 2
.mk
.na
\fB\fIh\fR\fR
.ad
.RS 7n
.rt  
Height of the area to be copied.
.RE

.sp
.ne 2
.mk
.na
\fB\fIdx\fR\fR
.ad
.RS 7n
.rt  
Horizontal displacement in pixels of the area to be copied.
.RE

.sp
.ne 2
.mk
.na
\fB\fIdy\fR\fR
.ad
.RS 7n
.rt  
Vertical displacement in pixels of the area to be copied.
.RE

.SH RETURN VALUES
.sp
.LP
The function returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBmlib_ImageCopy\fR(3MLIB), \fBmlib_ImageCopyMask\fR(3MLIB), \fBmlib_ImageCopyMask_Fp\fR(3MLIB), \fBmlib_ImageCopySubimage\fR(3MLIB), \fBattributes\fR(5)