'\"
'\" Copyright (c) 1997 Maorong Zou
'\" 
.TH EZ_LogicOp 3 "" EZWGL "EZWGL Functions"
.BS
.SH NAME
EZ_LogicOp \- Specify a logical pixel operation

.SH SYNOPSIS
.nf
.B #include <EZ.h>
.sp
.BI "void EZ_LogicOp( int " op )

.SH ARGUMENTS
\fIop\fR Specifies a logical operation. Must be one of
.sp
.in +5
EZ_CLEAR, EZ_AND, EZ_AND_REVERSE, EZ_COPY,
EZ_AND_INVERTED, EZ_NOOP, EZ_XOR, EZ_OR, EZ_NOR,
EZ_EQUIV, EZ_INVERT, EZ_OR_REVERSE, EZ_COPY_INVERTED,
EZ_OR_INVERTED, EZ_NAND, EZ_SET
.in -5

.SH DESCRIPTION
\fBEZ_LogicOp\fR selects a logical pixelvalue operation for subsequent
rendering. 
.PP
\fBEZ_LogicOp\fR only works for the front buffer and the PIXMAP back
buffer. It does not work on the XIMAGE back buffer.

.SH "SEE ALSO"
EZ_SetBackBuffer(3), EZ_DrawBuffer(3)