LDicomDS::CreateLayer

#include "Ltdic.h"

L_UINT16 LDicomDS::CreateLayer(pGraphicLayer, pLayerIndex)

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
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:

LDicomDS::GetLayerInfo, LDicomDS::SetLayerInfo, LDicomDS::RemoveLayerByIndex, LDicomDS::RemoveLayerByName, LDicomDS::RemoveAllLayers, LDicomDS::GetLayerCount, LDicomDS::GetLayerIndex, LDicomDS::GetLayerGraphicObjectCount, LDicomDS::RemoveLayerGraphicObjects, LDicomDS::GetLayerTextObjectCount, LDicomDS::RemoveLayerTextObjects, LDicomDS::GetLayerElementByIndex, LDicomDS::GetLayerElementByName, Class Members

Topics:

Working with DICOM Annotations

Example

L_VOID CreateNewLayer(LDicomDS& PresStateDS)
{
DICOMGRAPHICLAYER Layer;

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

L_CHAR szText[256] = "\0";
L_INT16 RGBColors[3];
L_INT16 pGrayScle[1];

pGrayScle[0] = 32767;

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

Layer.nLayerOrder = 1;
Layer.pszLayerDescription = "First Layer";
Layer.pszLayerName = "LAYER0";
Layer.puGrayscale = pGrayScle;
Layer.pRGBLayerColors = NULL;
Layer.uStructSize = sizeof(DICOMGRAPHICLAYER);
L_UINT uLayerIndex;
L_UINT16 nRet = PresStateDS.CreateLayer(&Layer, &uLayerIndex);
   if (nRet == DICOM_SUCCESS)
   {
  wsprintf(szText, "Index of the new layer is: %u ", uLayerIndex);
      MessageBox( NULL,
                  szText,
                  "Note",
                  MB_OK);
   }
}