Class Fox::FXVisual
In: rdoc-sources/FXVisual.rb
Parent: FXId

An FXVisual instance describes the pixel format for a drawable (i.e. an FXDrawable instance).

Construction options for FXVisual

VISUAL_DEFAULT:Default visual
VISUAL_MONOCHROME:Must be monochrome visual
VISUAL_BEST:Best (deepest) visual
VISUAL_INDEXCOLOR:Palette visual
VISUAL_GRAYSCALE:Gray scale visual
VISUAL_TRUECOLOR:Must be true color visual
VISUAL_OWNCOLORMAP:Allocate private colormap
VISUAL_DOUBLEBUFFER:Double-buffered [FXGLVisual]
VISUAL_STEREO:Stereo [FXGLVisual]
VISUAL_NOACCEL:No hardware acceleration [for broken h/w]
VISUAL_SWAP_COPY:Buffer swap by copying (for FXGLVisual)

Visual type

VISUALTYPE_UNKNOWN:Undetermined visual type
VISUALTYPE_MONO:Visual for drawing into 1-bpp surfaces
VISUALTYPE_TRUE:True color
VISUALTYPE_INDEX:Index [palette] color
VISUALTYPE_GRAY:Gray scale

Methods

getColor   getPixel   new  

Attributes

depth  [R]  Visual depth, i.e. number of significant bits in color representation [Integer]
flags  [R]  Visual construction flags [Integer]
maxColors  [RW]  Maximum number of colors [Integer]
numBlue  [R]  Number of bits of blue [Integer]
numColors  [R]  Number of colors [Integer]
numGreen  [R]  Number of bits of green [Integer]
numRed  [R]  Number of bits of red [Integer]
visualType  [R]  The visual type, one of VISUALTYPE_MONO, VISUALTYPE_TRUE VISUALTYPE_INDEX or VISUALTYPE_GRAY. The visual type may also be VISUALTYPE_UNKNOWN before the visual is actually created.

Public Class methods

Return an initialized FXVisual instance.

Parameters:

a:an application instance [FXApp]
flgs:visual construction flags [Integer]
d:requested visual depth, in bits [Integer]

Public Instance methods

Get color value for device pixel value pix.

Get device pixel value for color value clr.

[Validate]