LMemoryFile::LoadMemoryCallBack

pFILEINFO pFileInfo;

/* pointer to a FILEINFO structure */

LBitmapBase * pLBitmap;

/* pointer to an LBitmapBase object */

LBuffer * pLBuffer;

/* pointer to an LBuffer object */

L_UINT uFlags;

/* flags for first and last row, and first and last pass*/

L_INT nRow;

/* current row number of the first line in the buffer */

L_INT nLines;

/* number of lines in the buffer */

Parameter

Description

pFileInfo

Pointer to the FILEINFO structure that contains image information.

pLBitmap

Pointer to the bitmap object referencing the bitmap that contains the image information.

pLBuffer

Pointer to a buffer object containing one or more lines of output image data that the calling function has already processed (read or decompressed).

uFlags

Flags that describe whether this is the first or last call of the callback, and whether the buffer contains first or last row of image data. Possible values are:

Value

Meaning

FILEREAD_FIRSTPASS

[0x0001] This is the first pass through a progressive JPEG or CMP file.

FILEREAD_LASTPASS

[0x0002] This is the last pass through a progressive JPEG or CMP file.

FILEREAD_FIRSTROW

[0x0004] The first row of the buffer is the first row of the bitmap.

FILEREAD_LASTROW

[0x0008] The last row of the buffer is the last row of the bitmap.

FILEREAD_COMPRESSED

[0x0010] The data in the buffer is 1-bit compressed data, which you can handle as explained Speeding Up 1-Bit Documents.

nRow

The current bitmap row number of the first line in the buffer.

nLines

The number of lines in the pLBuffer buffer object.

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

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.

Functions:

Class Members