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COLORREF (Windows Embedded CE 6.0)

  • Artigo

1/6/2010

This value is a 32-bit value used to specify an RGB color.

Syntax

typedef DWORD COLORREF;
typedef DWORD* LPCOLORREF;

Members

None.

Remarks

When specifying an explicit RGB color, the COLORREF value has the following hexadecimal form.

0xaabbggrr

The low-order byte (rr) contains a value for red. The second byte (gg) contains a value for green. The third byte (bb) contains a value for blue.

The high-order byte (aa) contains a value for the degree of opacity in the alpha component.

When you want to create a color value that has an alpha component, the high-order byte (aa) can range from 00 (fully transparent) to FF (fully opaque).

When you want to create a color value without an alpha component, the high-order byte (aa) must be zero (00).

The maximum value for a single byte is 0xFF.

To create a COLORREF color value that has an alpha component, use the RGBA macro.

To create a COLORREF color value with no alpha component, use the RGB macro.

To extract the individual values for the red, green, and blue components of a color value, use the GetRValue, GetGValue, and GetBValue macros, respectively.

Requirements

Header windows.h
Windows Embedded CE Windows CE 1.0 and later

See Also

Reference

GDI Structures
GetBValue
GetGValue
GetRValue
RGB
RGBA
SetBkColor