xil_get_readable(3)
NAME
xil_get_readable, xil_get_writable − return TRUE if an image can be used as a source or destination
SYNOPSIS
#include <xil/xil.h>
Xil_boolean xil_get_readable (XilImage image);
Xil_boolean xil_get_writable (XilImage image);
DESCRIPTION
xil_get_readable() returns TRUE if an image can be used as a source. Some device images cannot be used as source images.
xil_get_writable() returns TRUE if an image can be used as a destination. Some device images cannot be used as destination images.
ERRORS
For a complete list of XIL error messages by number, consult Appendix B of the XIL Programmer’s Guide.
EXAMPLES
Determine whether a particular image can be used as a source:
XilImage image, src;
Xil_boolean isreadable;
isreadable = xil_get_readable(image);
if(isreadable)
src = image;
Determine whether a particular image can be used as a destination:
XilImage image, dst;
Xil_boolean iswritable;
iswritable = xil_get_writable(dst);
if(iswritable)
dst = image;
SEE ALSO
xil_create_from_device(3), xil_create_from_window(3).
SunOS 5.6 — Last change: 17 August 1993