LDicomDS::SetKeepPixelDataIntactFlag

#include "Ltdic.h"

L_VOID LDicomDS::SetKeepPixelDataIntactFlag(bSet)

L_BOOL bSet;

flag

Enables or disables the pre-processing of image data when a function that gets a bitmap from a Pixel Data element is called.

Parameter Description
bSet Flag the indicates whether to enable or disable the pre-processing of image data when a function that gets a bitmap from a Pixel Data element is called. Possible values are:
  Value Meaning
  TRUE Do not pre-process the image data.
  FALSE Pre-process the image data.

Returns

None

Comments

When a function that gets a bitmap from a data set is called, such as LDicomDS::GetImage or LDicomDS::GetImageList, LEADTOOLS may pre-process the image data in the bitmap handle for optimal display. Call the LDicomDS::GetKeepPixelDataIntactFlag function to determine whether LEADTOOLS will pre-process the image data. By default LEADTOOLS pre-processes the image data.

Calling the LDicomDS::SetKeepPixelDataIntactFlag function with bSet set to TRUE stops LEADTOOLS from pre-processing the image data in the bitmap handle. Please note that this may result in unexpected behavior when a LEADTOOLS display or image processing function is called for that bitmap handle.

Required DLLs and Libraries

LTDIC

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

Functions:

LDicomDS::GetKeepPixelDataIntactFlag, LDicomDS::GetImage, LDicomDS::GetImageList, Class Members

Topics:

Working with Data Sets

 

How to Disable the Automatic Loading of the default DICOM IOD Table

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LDicomDS_SetKeepPixelDataIntactFlagExample() 
{ 
   L_INT          nRet; 
   LDicomDS      *pDS; 
   pDICOMELEMENT  pElement; 
   BITMAPHANDLE   Bitmap; 
   L_BOOL         bKeepPixelDataUnchanged; 
   pDS = new LDicomDS(NULL); 
   nRet = pDS->LoadDS(MAKE_IMAGE_PATH(TEXT("image1.dcm")), 0); 
   if(nRet != DICOM_SUCCESS) 
      return nRet; 
   bKeepPixelDataUnchanged = pDS->GetKeepPixelDataIntactFlag(); 
   if(bKeepPixelDataUnchanged == FALSE) 
   { 
      L_INT nRet = AfxMessageBox(TEXT("Would like to keep pixel data unchanged?"), MB_YESNO); 
      pDS->SetKeepPixelDataIntactFlag((nRet == IDYES)); 
   } 
   pElement = pDS->FindFirstElement(NULL, TAG_PIXEL_DATA, FALSE); 
   if (pElement != NULL) 
   { 
      nRet = pDS->GetImage(pElement, &Bitmap, sizeof(BITMAPHANDLE), 0, 0, 0, NULL, NULL); 
      if(nRet != DICOM_SUCCESS) 
         return nRet; 
      L_FreeBitmap(&Bitmap); 
   } 
   delete pDS; 
   return DICOM_SUCCESS; 
}

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