LMemoryFile::GetMemoryThresholds

#include "ltwrappr.h"

static L_INT LMemoryFile::GetMemoryThresholds(pnTiledThreshold, pnMaxConvSize, pnTileSize, pnConvTiles, pnConvBuffers)

L_INT L_FAR * pnTiledThreshold;

/* pointer to a variable to be updated with the minimum amount of free memory required to allow the allocation of conventional bitmaps */

L_INT L_FAR * pnMaxConvSize;

/* pointer to a variable to be updated with the maximum size for conventional memory */

L_INT L_FAR * pnTileSize;

/* pointer to a variable to be updated with the tile size */

L_INT L_FAR * pnConvTiles;

/* pointer to a variable to be updated with the maximum number of conventional tiles */

L_INT L_FAR * pnConvBuffers;

/* pointer to a variable to be updated with the number of buffers in conventional memory */

Gets the current memory restrictions set using LMemoryFile::SetMemoryThresholds.

Parameter

Description

pnTiledThreshold

Pointer to a variable to be updated with a value that represents the minimum amount of free memory required to allow the allocation of conventional bitmaps. For more information, refer to LMemoryFile::SetMemoryThresholds.

pnMaxConvSize

Pointer to a variable to be updated with a value that represents the maximum size for a conventional bitmap. For more information, refer to LMemoryFile::SetMemoryThresholds.

pnTileSize

Pointer to a variable to be updated with a value that represents the size of the tile for tiled bitmaps. For more information, refer to LMemoryFile::SetMemoryThresholds.

pnConvTiles

Pointer to a variable to be updated with a value that represents the maximum number of tiles that will reside in conventional memory at any time. For more information, refer to LMemoryFile::SetMemoryThresholds.

pnConvBuffers

Pointer to a variable to be updated with the number of buffers in conventional memory. For more information, refer to LMemoryFile::SetMemoryThresholds.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function will allow you to retrieve the parameters set with LMemoryFile::SetMemoryThresholds. For more information on the various thresholds, refer to LMemoryFile::SetMemoryThresholds.

Pass NULL for any parameter you are not interested in retrieving.

Required DLLs and Libraries

LTFIL
File format DLLs

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

See Also

Functions:

LFileSettings::SetTempDirectory, LFileSettings::GetTempDirectory, Class Members

Topics:

Memory Storage Types for Bitmaps

 

Raster Image Functions: Creating and Deleting Images

Example

/* This example doubles the maximum size for a conventional bitmap */
L_INT nMaxConvSize; 

/* Get only the max conventional size value */
LMemoryFile::GetMemoryThresholds (NULL, &nMaxConvSize, NULL, NULL, NULL); 

/* Double the max conventional size value */
LMemoryFile::SetMemoryThresholds(0, nMaxConvSize * 2, 0, 0, 0, MEM_MAXCONVSIZE);