L_GetMemoryThresholds

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#include "l_bitmap.h"

L_LTKRN_API L_VOID L_GetMemoryThresholds(pnTiledThreshold, pnMaxConvSize, pnTileSize, pnConvTiles, pnConvBuffers);

L_INT* pnTiledThreshold;	/* pointer to a variable to be updated with the tiled threshold */
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 L_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 L_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 L_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 L_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 L_SetMemoryThresholds.
pnConvBuffers	Pointer to a variable to be updated with the number of buffers in conventional memory. For more information, refer to L_SetMemoryThresholds.

Comments

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

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

Returns

None.

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_SetMemoryThresholds, L_GetBitmapMemoryInfo, L_SetBitmapMemoryInfo, L_SetTempDirectory, L_GetTempDirectory
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 GetMemoryThresholdsExample(L_VOID)
{
   L_INT nRet;
   L_SSIZE_T zMaxConvSize; 

   /* Get only the max conventional size value */
   L_GetMemoryThresholds (NULL, &zMaxConvSize, NULL, NULL, NULL); 

   /* Double the max conventional size value */
   nRet = L_SetMemoryThresholds (0, zMaxConvSize * 2, 0, 0, 0, MEM_MAXCONVSIZE);
   if(nRet != SUCCESS)
      return nRet;

   return SUCCESS;
}