LEADTOOLS Raster Imaging C DLL Help > Function References > L_SetJ2KOptions |
#include "l_bitmap.h"
L_LTFIL_API L_INT L_SetJ2KOptions(pOptions)
pFILEJ2KOPTIONS pOptions; |
/* pointer to a structure */ |
Sets the file options used by LEADTOOLS when saving J2K or JP2 files.
Parameter |
Description |
pOptions |
Pointer to a structure that contains the options to use when loading J2K or JP2 files. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
The nSize member of the FILEJ2KOPTIONS structure must be set before calling this function.
The values set by this function are valid for the current thread. To change the values used by the current thread, this function must be called again.
Required DLLs and Libraries
LTFIL 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: |
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Topics: |
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Example
This example will make it so the next time you save a JPEG2000 or enhanced CMP file, it will be saved with a 100:1 compression ratio get the current values. I only want to change the compression ratio.
L_INT SetJ2KOptionsExample(L_VOID) { L_INT nRet; FILEJ2KOPTIONS J2KOptions; nRet = L_GetJ2KOptions( &J2KOptions, sizeof(FILEJ2KOPTIONS)); if(nRet != SUCCESS) return nRet; // set the compression control to make sure we will be // using the compression control J2KOptions.uCompressionControl = J2K_COMPRESSION_RATIO; // set the compression ratio to 100 J2KOptions.fCompressionRatio = 100.0f; // set the compression options. The next time I save a // JPEG2000 file, it will be saved with 100:1 compression ratio nRet = L_SetJ2KOptions(&J2KOptions); if(nRet != SUCCESS) return nRet; return SUCCESS; }