This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.

gf_chroma_t

Specification of a chroma operation

Synopsis:

#include <gf/gf.h>

typedef struct {
    uint32 mode;
    gf_color_t color0;
    gf_color_t color1;
    gf_color_t mask;
} gf_chroma_t;

Description:

The gf_chroma_t structure describes a chroma operation. It contains at least the following members:

mode

The chroma mode. This parameter must be a combination of one of:

• GF_CHROMA_OP_SRC_MATCH -- test against source pixels
• GF_CHROMA_OP_DST_MATCH -- test against destination pixels

and one of:

• GF_CHROMA_OP_DRAW -- draw if color0 matches the color of the test pixel
• GF_CHROMA_OP_NO_DRAW -- don't draw if color0 matches the color of the test pixel

color0

Key color to compare against the test pixel for a single color match.

color1

Not currently used; set to 0.

mask

Not used.

Classification:

QNX Graphics Framework

See also:

gf_context_set_chroma(), gf_layer_set_chroma(), The gf_color_t Type