GIMP_CHECK_SIZE

#define GIMP_CHECK_SIZE     8

The default checkerboard size in pixels. This is configurable in the core but GIMP plug-ins can't access the user preference and should use this constant instead.

GIMP_CHECK_SIZE_SM

#define GIMP_CHECK_SIZE_SM  4

The default small checkerboard size in pixels.

GIMP_CHECK_DARK

#define GIMP_CHECK_DARK   0.4

The dark gray value for the default checkerboard pattern.

GIMP_CHECK_LIGHT

#define GIMP_CHECK_LIGHT  0.6

The dark light value for the default checkerboard pattern.

gimp_checks_get_shades ()

void                gimp_checks_get_shades              (GimpCheckType type,
                                                         guchar *light,
                                                         guchar *dark);

Retrieves the actual shades of gray to use when drawing a checkerboard for a certain GimpCheckType.

Since GIMP 2.2