static L_INT LMemoryFile::SetBitmapMemoryInfo(pBitmap, uMemory, uTileSize, uTotalTiles, uConvTiles, uMaxTileViews, uTileViews, uFlags)
static L_INT LMemoryFile::SetBitmapMemoryInfo(plBitmap, uMemory, uTileSize, uTotalTiles, uConvTiles, uMaxTileViews, uTileViews, uFlags)
Sets the bitmap allocation parameters.
Pointer to the bitmap handle that references the bitmap for which to set the allocation parameters. It cannot be NULL and it must be allocated.
Pointer to the LBitmapBase object that references the bitmap for which to get the memory information. This bitmap must be allocated and this pointer cannot be NULL.
Value that represents the new memory type for the bitmap. This parameter is used only if SETMEM_MEMORY is set in uFlags.
Value that represents the new size for the tile. This parameter is used only if SETMEM_TILESIZE is set in uFlags.
Value that represents the new number of tiles. This parameter is used only if SETMEM_TOTALTILES is set in uFlags.
Value that represents the new number of conventional tiles. This parameter is used only if SETMEM_CONVTILES is set in uFlags.
Value that represents the new maximum number of swap buffers for the disk tiles. This parameter is used only if SETMEM_MAXTILEVIEWS is set in uFlags.
Value that represents the new number of swap buffers for the disk tiles. This parameter is used only if SETMEM_TILEVIEWS is set in uFlags.
Flags that indicate which parameters should be considered valid. Use one or more values. You can use a bitwise OR ( | ) to combine values. Possible values are:
Value | Meaning |
---|---|
SETMEM_MEMORY | [0x0001] The uMemory parameter is valid |
SETMEM_TILESIZE | [0x0002] The uTileSize parameter is valid |
SETMEM_TOTALTILES | [0x0004] The uTotalTiles parameter is valid |
SETMEM_CONVTILES | [0x0008] The uConvTiles parameter is valid |
SETMEM_MAXTILEVIEWS | [0x0010] The uMaxTileViews parameter is valid |
SETMEM_TILEVIEWS | [0x0020] The uTileViews parameter is valid |
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
If uMemory is valid and is not TYPE_TILED, then the other parameters are ignored. If uMemory is not valid and the bitmap is not tiled, then the other parameters are ignored. This overrides the uFlags parameter
Win32, x64.
// change the tiled bitmap so is can use as many cache buffers as possible:
L_INT LMemoryFile__SetBitmapMemoryInfoExample(LBitmap *pBitmap)
{
L_INT nRet = 0;
nRet = LMemoryFile::SetBitmapMemoryInfo(
pBitmap,
0, // uMemory
0, // uTileSize
0, // uTotalTiles
0, // uConvTiles
(L_UINT)-1, // uMaxTileViews,
(L_UINT)-1, // uTileViews,
SETMEM_MAXTILEVIEWS | SETMEM_TILEVIEWS
);
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}
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