L_ConvertFromDIB - Raster Imaging C API Help

L_ConvertFromDIB

#include "l_bitmap.h"

L_LTKRN_API L_INT L_ConvertFromDIB(pBitmap, uStructSize, pInfo, pBits)

pBITMAPHANDLE pBitmap;

pointer to the target bitmap handle

L_UINT uStructSize;

size in bytes, of the structure pointed to by pBitmap

L_BITMAPINFO* pInfo;

pointer to the Windows BITMAPINFO structure

L_UCHAR* pBits;

pointer to the DIB image data

Converts a Windows device independent bitmap (DIB) into a LEAD Technologies bitmap. When this function is completed, there are two copies of the image in memory: the original DIB and the LEAD bitmap. Freeing one will not affect the other.

Parameter

Description

pBitmap

Pointer to the bitmap handle referencing the target LEAD bitmap.

uStructSize

Size in bytes, of the structure pointed to by pBitmap, for versioning. Use sizeof(BITMAPHANDLE).

pInfo

Long pointer to the Windows BITMAPINFO structure.

pBits

Long pointer to the DIB image data.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function updates information in the bitmap handle and copies the DIB image data into the LEAD bitmap.

Before calling this function, you must declare the LEAD bitmap handle and initialize it, specifying a height and width of 0. However, you should not allocate the bitmap. (If the bitmap is already allocated, you must free it and initialize the bitmap handle again.)

This function supports the standard DIB formats (BI_RGB and BI_BITFIELDS) as well as some FOURCC (Four Character Code) formats that some capture cards output.

These are the FOURCC that LEADTOOLS supports at the moment:

YVU9 (YUV9), I420 (YUV12), YUV2 , YV12 , IF09 , IYUV , UYVY , cyuv, YUY2, YVYU, Y41P, Y211, Y41T, Y42T

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_ConvertFromDDB, L_ConvertToDDB,

 

L_ConvertToDIB, L_ChangeFromDDB,

 

L_ChangeFromDIB, L_ChangeToDDB,

 

L_ChangeToDIB

Topics:

Raster Image Functions: Creation, Deletion, and Copying

 

Using DIBs, DDBs, and the Clipboard

Example

For a short example, refer to L_ConvertToDIB. For complete sample code, refer to the DIBDDB example.

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LEADTOOLS Raster Imaging C API Help