LMemoryFile::GetMemoryThresholds (original) (raw)

Summary

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

Syntax

#include "ltwrappr.h"

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

Parameters

L_INT * 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.

L_SSIZE_T * 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.

L_SSIZE_T * 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.

L_INT * 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.

L_INT * 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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