Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "l_bitmap.h"
L_LTKRN_API L_INT L_ToggleBitmapCompression(pBitmap)
pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap handle */ |
Toggles the compression of the specified bitmap.
Parameter |
Description |
pBitmap |
Pointer to the bitmap handle. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
NOTE: This function is now obsolete. New applications should use the L_ChangeBitmapCompression function.
(Document and Medical Imaging toolkits) If the specified bitmap is compressed, calling this function will make the bitmap uncompressed. If the bitmap is uncompressed, calling this function will make the bitmap compressed.
This function only works for 1 bit per pixel images.
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.
See Also
Topics: |
Example
This function toggles bitmap compression.
L_INT ToggleBitmapCompressionExample(HWND hWnd,pBITMAPHANDLE pBitmap) { L_INT nRet; L_TCHAR s[100]; if(pBitmap->BitsPerPixel == 1) { wsprintf(s, TEXT("BEFORE - ImageSize: %ld bytes, Type: %s"), pBitmap->Size, (pBitmap->Flags.Compressed ? TEXT("COMP") : TEXT("UNCOMP"))); MessageBox(hWnd, s, TEXT("ToggleBitmapCompression"), MB_OK); nRet = L_ToggleBitmapCompression(pBitmap); if( nRet == SUCCESS) wsprintf(s, TEXT("AFTER - ImageSize: %ld bytes, Type: %s"), pBitmap->Size, (pBitmap->Flags.Compressed ? TEXT("COMP") : TEXT("UNCOMP"))); else { wsprintf(s, TEXT("L_ToggleBitmapCompression Failed")); return nRet; } MessageBox(hWnd, s, TEXT("ToggleBitmapCompression"), MB_OK); } return SUCCESS; }