<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="DOCTEXT"> <TITLE>MPE_Draw_logic</TITLE> </HEAD> <BODY BGCOLOR="FFFFFF"> <A NAME="MPE_Draw_logic"><H1>MPE_Draw_logic</H1></A> Sets logical operation for laying down new pixels <H2>Synopsis</H2> <PRE> #include "mpe.h" int MPE_Draw_logic( graph, function ) MPE_XGraph graph; int function; </PRE> <H2>Input Parameters</H2> <DL> <DT><B>graph </B><DD>MPE graphics handle <DT><B>function </B><DD>integer specifying one of the following: </DL> <BR>'MPE_LOGIC_COPY' - no logic, just copy the pixel <BR>'MPE_LOGIC_XOR' - xor the new pixel with the existing one and many more... see 'mpe_graphics.h' <P> <P> <H2>Notes For Fortran Interface </H2> The Fortran interface to this routine is different from its C counterpart and it has an additional argument, ierr, at the end of the argument list, i.e. the returned function value (the error code) in C interface is returned as the additional argument in Fortran interface. The Fortran interface is invoked with the CALL statement. <P> All MPI and MPE objects, MPI_Comm, MPE_XGraph and MPE_Color, are of type INTEGER in Fortran. <P><B>Location:</B>../src/graphics/src/mpe_graphics.c<P> </BODY></HTML>