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.

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;
}