[9fans] a simple graphical application in Go?

[Kim Lassila]

Has anyone written a graphical application in Go on Plan 9? How would the Go 
equivalent of black.c (thank you fgb) look like?  

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#include <u.h>
#include <libc.h>
#include <draw.h>

void
main(int, char *argv[])
{
        Rectangle       rect;
        Image *black;

        fmtinstall('R', Rfmt);
        if(initdraw(nil, nil, argv[0]) < 0)
                sysfatal("initdraw: %r");
        rect = screen->r;
        black = display->black;
        draw(screen, rect, black, nil, ZP);
        flushimage(display, 1);
        sleep(5 * 1000);
        closedisplay(display);
        print("rectangle was %R\n", rect);
        exits(nil);
}


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