rem: return True;
context: RBevelImage(RImage *image, int bevel_type){    RColor color;    RColor cdelta;    int w, h;    if (image->width<3 || image->height<3)        return False;    w = image->width;    h = image->height;    if (bevel_type>0) {  /* raised */        /* top */        cdelta.alpha = 0;        cdelta.red = cdelta.green = cdelta.blue = 80;        ROperateLine(image, RAddOperation, 0, 0, w-1, 0, &cdelta);        if (bevel_type==RBEV_RAISED3 && w>3)            ROperateLine(image, RAddOperation, 1, 1, w-3, 1,&cdelta);        /* left */        ROperateLine(image, RAddOperation, 0, 1, 0, h-1, &cdelta);        if (bevel_type==RBEV_RAISED3 && h>3)            ROperateLine(image, RAddOperation, 1, 2, 1, h-3, &cdelta);	/* bottom */        color.alpha = 255;        color.red = color.green = color.blue = 0;        cdelta.red = cdelta.green = cdelta.blue = 40;        if (bevel_type==RBEV_RAISED2 || bevel_type==RBEV_RAISED3) {            ROperateLine(image, RSubtractOperation, 0, h-2, w-3, 				   h-2, &cdelta);            RDrawLine(image, 0, h-1, w-1, h-1, &color);        } else {            ROperateLine(image, RSubtractOperation, 0, h-1, w-1, h-1,				   &cdelta);        }	/* right */        if (bevel_type==RBEV_RAISED2 || bevel_type==RBEV_RAISED3) {            ROperateLine(image, RSubtractOperation, w-2, 0, w-2, h-2,				   &cdelta);            RDrawLine(image, w-1, 0, w-1, h-2, &color);        } else {            ROperateLine(image, RSubtractOperation, w-1, 0, w-1, h-2,				   &cdelta);        }    } else { /* sunken */        cdelta.alpha = 0;        cdelta.red = cdelta.green = cdelta.blue = 40;        ROperateLine(image, RSubtractOperation, 0, 0, w-1, 0, 			       &cdelta);        /* top */        ROperateLine(image, RSubtractOperation, 0, 1, 0, h-1, 			       &cdelta);	/* left */        cdelta.red = cdelta.green = cdelta.blue = 80;        ROperateLine(image, RAddOperation, 0, h-1, w-1, h-1, &cdelta); /* bottom */        ROperateLine(image, RAddOperation, w-1, 0, w-1, h-2, &cdelta); /* right */    }    return True;}