dxCoreGraphics Unit

Interfaces

IdxColorPalette

Classes

Name	Description
TdxAdvancedColorPalette	Stores and manages two color palettes with named colors for painting images and UI elements.
TdxCustomColorPalette	The base class for all classes that implement color palette containers in DevExpress products.
TdxCustomFastDIB	The base class for all classes that implement simple memory buffers for DIB images.
TdxFastDIB	A memory DC-based buffer for DIB images.
TdxSimpleColorPalette	A simple palette container that stores two colors.

Interfaces

Name	Description
IdxColorPalette	Exposes the functions that return stroke and fill colors by their names in the corresponding palettes.

Records

Name	Description
TdxAlphaColors	Stores TdxAlphaColor equivalents of certain TColor values and provides a set of auxiliary color-related functions.

Enums

Name	Description
TdxAlphaState	Enumerates available states of pixel transparency information that bitmaps can store.
TdxGraphicUnit	Enumerates measurement units used to specify visual element dimensions and font sizes in DevExpress VCL controls.

Methods

Name	Description
cxGetBitmapPixelFormat(TBitmap)	Returns the color depth of a bitmap image stored in the specified bitmap container.
dxAlphaColorToColor(TdxAlphaColor,Byte)	Converts a specified TdxAlphaColor value to the TColor type.
dxAlphaColorToColor(TdxAlphaColor)
dxAlphaColorToRGBQuad(TdxAlphaColor)	Converts a specified TdxAlphaColor value to the TRGBQuad type.
dxColorToAlphaColor(TColor,Byte)	Converts a specified TColor value to the TdxAlphaColor type.
dxColorToRGBQuad(TColor,Byte)	Converts a specified TColor value to the TRGBQuad type.
dxFillBitmapInfoHeader(TBitmapInfoHeader,Integer,Integer,WordBool)	Returns the header information of a specified bitmap object.
dxFillBitmapInfoHeader(TBitmapInfoHeader,TBitmap,WordBool)
dxGetAlpha(TdxAlphaColor)	Extracts the alpha value (also called transparency level) from a specified color.
dxGetAlphaState(TRGBColors)
dxGetAlphaState(TBitmap)	Identifies if the specified bitmap includes pixel transparency information (and whether it is in use).
dxGetBitmapData(HBITMAP,TBitmap)	Returns a record populated with pixel data and image information by the specified bitmap handle.
dxGetBlue(TdxAlphaColor)	Extracts the blue color component value from a specified color.
dxGetBrushData(HBRUSH,TLogBrush)	Returns settings of a brush object identified by its handle.
dxGetBrushData(HBRUSH)
dxGetFontData(HFONT,TLogFont)
dxGetFontData(HFONT)	Returns settings of a font object identified by its handle.
dxGetGreen(TdxAlphaColor)	Extracts the green color component value from a specified color.
dxGetPenData(HPEN,TLogPen)	Returns settings of a pen object identified by its handle.
dxGetRed(TdxAlphaColor)	Extracts the red color component value from a specified color.
dxGraphicIsEquals(TGraphic,TGraphic)	Identifies if the content of two specified image containers is identical.
dxIsAlphaUsed(TBitmap)	Determines if the alpha channel is used in a specified bitmap object.
dxMakeAlphaColor(Byte,Byte,Byte,Byte)
dxMakeAlphaColor(Byte,Byte,Byte)
dxMakeAlphaColor(TColor,Byte)	Creates a TdxAlphaColor value from individual color component values and returns it as the function’s result.
dxRGBQuadToColor(TRGBQuad)	Converts a specified TRGBQuad value to the TColor type.
GetBitmapBits(TBitmap,TRGBColors,Boolean)
GetBitmapBitsByScanLine(TBitmap,TRGBColors)	Obtains pixel data from individual scanlines of a specified bitmap object.
SetBitmapBits(TBitmap,TRGBColors,Boolean)	Stores pixel data to a specified bitmap object.

Constants

Name	Description
AlphaMask	Specifies the hexadecimal value that corresponds to the non-transparent TdxAlphaColor value.
AlphaShift	Specifies the right bit shift that corresponds to alpha component bits in a TdxAlphaColor value.
BlueMask	Specifies the hexadecimal value that corresponds to the blue TdxAlphaColor value.
BlueShift	Specifies the right bit shift corresponding to blue component bits in a TdxAlphaColor value.
dxacDefault	Stores the TdxAlphaColor equivalent of the clDefault TColor value.
dxacNone	Stores the special “empty” TdxAlphaColor value whose alpha and color channel values are set to zero.
GreenMask	Specifies the hexadecimal value corresponding to the green TdxAlphaColor value.
GreenShift	Specifies the right bit shift corresponding to green component bits in a TdxAlphaColor value.
RedMask	Specifies the hexadecimal value corresponding to the red TdxAlphaColor value.
RedShift	Specifies the right bit shift corresponding to red component bits in a TdxAlphaColor value.

Types

Name	Description
PdxAlphaColor	The pointer to a TdxAlphaColor value.
TdxAlphaColor	The color data type that stores the transparency level (also called alpha value) in addition to the red, green, and blue color components.
TdxAlphaColorFunc
TRGBColors	An array of TRGBQuad values used to store pixel data.