PgSetFillXORColor()

Set the fill color for XOR drawing

Synopsis:

void PgSetFillXORColor( PgColor_t frgd,
                        PgColor_t bkgd );

Description:

This function sets the draw color for fills. When an application XORs this color with the color bkgd, the result is the color frgd.

Since XOR is a reflexive function, frgd and bkgd may be reversed.

Examples:

The following example:

DrawXOR() {
    char *s = "Hello World!";
    PhPoint_t p = { 8, 30 };
    PhRect_t    r;

    PgSetFont( "helv18" );
    PgSetTextColor( Pg_YELLOW );
    PgSetFillColor( Pg_PURPLE );
    PgDrawText( s, strlen( s ), &p, Pg_BACK_FILL );
    PgExtentText( &r, &p, "helv18", s, strlen( s ) );
    r.lr.x -= (r.lr.x - r.ul.x) / 2;
    PgSetDrawMode( Pg_DRAWMODE_XOR );
    PgSetFillXORColor( Pg_YELLOW, Pg_PURPLE );
    PgDrawRect( &r, Pg_DRAW_FILL );
    PgSetDrawMode( Pg_DRAWMODE_OPAQUE );
}

will draw:

Classification:

Photon

See also:

PgSetDrawMode(), PgSetFillColor(), PgSetFillDither(), PgSetStrokeColor(), PgSetStrokeDither(), PgSetStrokeXORColor(), PgSetTextColor(), PgSetTextDither(), PgSetTextXORColor()