XLATEOBJ (Windows Embedded CE 6.0)
1/6/2010
This structure is used to translate color indexes from one palette to another.
Syntax
typedef struct _XLATEOBJ {
ULONG iUniq;
FLONG flXlate;
USHORT iSrcType;
USHORT iDstType;
ULONG cEntries;
ULONG* pulXlate;
} XLATEOBJ;
Members
- iUniq
A cache identifier that enables the driver to recognize an XLATEOBJ structure that it has previously cached. If this member is zero, the driver should not cache the XLATEOBJ structure.
flXlate
Flags specifying hints about the translation. This member can be any combination of flags shown in the following table.Flag Description XO_TABLE
A table is provided to translate source indices to target indices.
XO_TO_MONO
Source indices are translated to a monochrome format with the special property that all indices map to zero, except for one. A driver can use this to accelerate a block transfer.
XO_TRIVIAL
Source indices are usable as target indices.
XO_DEVICE_ICM
Not supported.
XO_FROM_CMYK
Not supported.
XO_HOST_ICM
Not supported.
- iSrcType
Obsolete. Use XLATEOBJ_cGetPalette to query the source format.
- iDstType
Obsolete. Use XLATEOBJ_cGetPalette to query the destination format.
- cEntries
Specifies the number of entries in the array pointed to by the pulXlate member. Indexing into pulXlate with a value greater than cEntries results in a memory access violation.
- pulXlate
Pointer to an array of translation entries.
Remarks
The destination palette always belongs to the destination surface of some drawing operation. The source palette is an application-selected palette or a palette from another surface.
The XLATEOBJ structure is used to translate color indices that refer to the source palette to indices for the destination palette. The resulting index identifies a color that matches the source color as closely as possible.
Requirements
| Header | winddi.h |
| Windows Embedded CE | Windows CE 1.0 and later |