LMemoryFile::GetMemoryThresholds

#include "ltwrappr.h"

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

L_INT * pnTiledThreshold;

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

L_SSIZE_T * pnMaxConvSize;

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

L_SSIZE_T * pnTileSize;

pointer to a variable to be updated with the tile size

L_INT * pnConvTiles;

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

L_INT * 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

None.

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.

Platforms

Win32, x64.

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 LMemoryFile__GetMemoryThresholdsExample() 
{ 
   L_INT nRet; 
   L_SSIZE_T nMaxConvSize;  
 
   /* Get only the max conventional size value */ 
   LMemoryFile::GetMemoryThresholds (NULL, &nMaxConvSize, NULL, NULL, NULL);  
 
   /* Double the max conventional size value */ 
   nRet = LMemoryFile::SetMemoryThresholds(0, (L_INT) nMaxConvSize * 2, 0, 0, 0, MEM_MAXCONVSIZE); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}

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