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LEADTOOLS Raster Imaging C DLL Help

L_FreeUserMatchTable

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#include "l_bitmap.h"

L_LTKRN_API L_INT L_FreeUserMatchTable(pTable)

L_UINT* pTable;

/* pointer to the table */

Frees the table that is used to speed conversion when using a palette that you create.

Parameter

Description

pTable

The pointer to the table.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function is used with other functions in the following sequence:

1.

Call L_CreateUserMatchTable to create the table.

2.

Call L_SetUserMatchTable to make this the current table. (Having this as a separate function allows you to save tables in files and get the one you need, without creating it again.)

3.

Call L_ColorResBitmap with the CRF_USERPALETTE and CRF_FASTMATCHPALETTE options.

4.

Call L_FreeUserMatchTable when the table is no longer needed.

The completed table occupies 64K bytes of memory. Creation of the table is a slow, memory-intensive process that is useful only if you are using your own palette more than once. For example, you may want to create the table once, save it to a file, and ship that file with your application.

Required DLLs and Libraries

LTKRN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64, Linux.

See Also

Functions:

L_ColorResBitmap, L_DefaultDithering, L_CreateUserMatchTable, L_SetUserMatchTable

Topics:

Raster Image Functions: Doing Color Expansion or Reduction

 

Raster Image Functions: Doing Color Space Conversions

 

Raster Image Functions: Palettes

Example

Refer to L_CreateUserMatchTable.

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