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FX::FXVisual Class Reference

Visual describes pixel format of a drawable. More...

#include <FXVisual.h>

Inheritance diagram for FX::FXVisual:
FX::FXId FX::FXObject FX::FXGLVisual

Public Types

enum  {
  Unknown, Mono, Gray, Index,
 Visual types. More...

Public Member Functions

 FXVisual (FXApp *a, FXuint flgs=VISUAL_DEFAULT, FXuint hnt=32)
 Construct visual.
FXuchar getType () const
 Get visual type.
void * getVisual () const
 Get visual or pixel format.
virtual void create ()
 Create visual.
virtual void detach ()
 Detach visual.
virtual void destroy ()
 Destroy visual.
void setFlags (FXuint flgs)
 Change option flags.
FXuint getFlags () const
 Get option flags.
void setHint (FXuint hnt)
 Change hints.
FXuint getHint () const
 Get hints.
FXuint getDepth () const
 Get depth, i.e. number of significant bits in color representation.
FXuint getNumColors () const
 Get number of colors.
FXuint getNumRed () const
 Get number of reds.
FXuint getNumGreen () const
 Get number of greens.
FXuint getNumBlue () const
 Get number of blues.
FXPixel getPixel (FXColor clr)
 Get device pixel value for color.
FXColor getColor (FXPixel pix)
 Get color value for device pixel value.
void setMaxColors (FXuint maxcols)
 Set maximum number of colors to allocate.
FXuint getMaxColors () const
 Get maximum number of colors.
virtual void save (FXStream &store) const
 Save visual information to a stream.
virtual void load (FXStream &store)
 Load visual information from a stream.
virtual ~FXVisual ()
- Public Member Functions inherited from FX::FXId
FXAppgetApp () const
 Get application.
FXID id () const
 Get XID handle.
void setUserData (FXptr ptr)
 Set user data pointer.
FXptr getUserData () const
 Get user data pointer.
virtual ~FXId ()
- Public Member Functions inherited from FX::FXObject
const FXchar * getClassName () const
 Get class name of some object.
FXbool isMemberOf (const FXMetaClass *metaclass) const
 Check if object is member of metaclass.
virtual long tryHandle (FXObject *sender, FXSelector sel, void *ptr)
 Try handle message safely, catching certain exceptions.
virtual long onDefault (FXObject *, FXSelector, void *)
 Called for unhandled messages.
virtual ~FXObject ()
 Virtual destructor.

Protected Member Functions

void setuptruecolor ()
void setupdirectcolor ()
void setuppseudocolor ()
void setupstaticcolor ()
void setupgrayscale ()
void setupstaticgray ()
void setuppixmapmono ()
void setupcolormap ()
void * setupgc (FXbool)
- Protected Member Functions inherited from FX::FXId
 FXId (FXApp *a)

Protected Attributes

void * visual
FXID colormap
FXuint maxcolors
FXuint numcolors
FXuint numred
FXuint numgreen
FXuint numblue
FXuint depth
FXuint flags
FXuint hint
FXuchar type
FXbool freemap
void * scrollgc
void * gc
FXPixel rpix [16][256]
FXPixel gpix [16][256]
FXPixel bpix [16][256]
FXPixel lut [256]
- Protected Attributes inherited from FX::FXId
FXID xid


class FXApp
class FXWindow
class FXImage
class FXIcon
class FXBitmap
class FXDCWindow
class FXGLCanvas
class FXGLContext

Detailed Description

Visual describes pixel format of a drawable.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Visual types.


Undetermined visual type.


Monochrome 1 bit/pixel.


Gray scale color.


Index color.

True color

The documentation for this class was generated from the following file:

Copyright © 1997-2022 Jeroen van der Zijp