L_DicomCreateLayer

#include "l_bitmap.h"

L_LTDIC_API L_UINT16 L_DicomCreateLayer(hDS, pGraphicLayer, pLayerIndex)

HDICOMDS hDS;	/* a DICOM handle */
pDICOMGRAPHICLAYER pGraphicLayer;	/* pointer to a Graphic Layer attributes structure */
L_UINT * pLayerIndex;	/* pointer to a variable, which will be updated with the index of the newly created layer.*/

Adds a new item under the "Graphic Layer Sequence" (0070,0060) in the Graphic Layer Module".

Parameter	Description
hDS	A DICOM handle.
pGraphicLayer	Pointer to a Graphic Layer attributes structure, which holds the attributes of the layer to be created.
pLayerIndex	Pointer to a variable, which will be updated with the index of the newly created layer.

Returns

0	SUCCESS
>0	An error occurred. Refer to Return Codes.

Comments

Before calling this function, initialize pDICOMGRAPHICLAYER->uStructSize to be sizeof(DICOMGRAPHICLAYER) and initialize all the structure members.

If for example there are already 2 items under the "Graphic Layer Sequence" (0070,0060) and we call this function, then the index of the new layer will be 2.

This function will fail and return DICOM_ERROR_PARAMETER if a layer with the same name as the new layer already exists in the dataset.

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

See Also

Functions:	L_DicomGetLayerInfo, L_DicomSetLayerInfo, L_DicomRemoveLayerByIndex, L_DicomRemoveLayerByName, L_DicomRemoveAllLayers, L_DicomGetLayerCount, L_DicomGetLayerIndex, L_DicomGetLayerGraphicObjectCount, L_DicomRemoveLayerGraphicObjects, L_DicomGetLayerTextObjectCount, L_DicomRemoveLayerTextObjects, L_DicomGetLayerElementByIndex, L_DicomGetLayerElementByName
Topics:	Working with DICOM Annotations
	Dicom Annotations: Layers

Example

L_INT DicomCreateLayerExample(HDICOMDS hPresStateDS)
{
   DICOMGRAPHICLAYER Layer;
   L_TCHAR   szText[256] = TEXT("\0");
   L_INT16  RGBColors[3];
   L_INT16  pGrayScle[1]; 
   L_UINT   uLayerIndex;
   L_UINT16 nRet;

   memset(&Layer, 0, sizeof(DICOMGRAPHICLAYER));

   pGrayScle[0] = 32767;

   RGBColors[0] = 255;
   RGBColors[1] = 255;
   RGBColors[2] = 255;

   Layer.nLayerOrder = 1;
   Layer.pszLayerDescription = TEXT("First Layer");
   Layer.pszLayerName      = TEXT("LAYER0");
   Layer.puGrayscale       = pGrayScle;
   Layer.pRGBLayerColors   = RGBColors;
   Layer.uStructSize = sizeof(DICOMGRAPHICLAYER);

   nRet = L_DicomCreateLayer( hPresStateDS,
                              &Layer, 
                              &uLayerIndex);
   if (nRet == DICOM_SUCCESS)
   {
      wsprintf(szText, TEXT("Index of the new layer is: %u "), uLayerIndex);
      MessageBox( NULL,
                  szText,
                  TEXT("Note"),
                  MB_OK);
   }

   return nRet;
}