L_DicomGetWindowCount

#include "ltdic.h"

L_LTDIC_API L_UINT16 L_DicomGetWindowCount(hDS, uFrameIndex, pCount)

HDICOMDS hDS;

/* a DICOM handle */

L_UINT32 uFrameIndex;

/*index value */

L_UINT * pCount;

/* address of the variable to be updated */

Gets the number of values under the window center element.

Parameter

Description

hDS

A DICOM handle.

uFrameIndex

A zero-based index that identifies the frame number in the dataset.  If the dataset does not support Multi-frames, this parameter is ignored.

pCount

Pointer to a variable to be updated with the number of values under the window center.

Returns

0

The function was successful.

>0

An error occurred. Refer to Return Codes.

Comments

This function will get the number of values under the window center (0028,1050) element; this should also equal the number of values under the window width (0028,1051) element.

The Multi-frame Functional Groups module may have a Shared Functional Groups Sequence item, and/or a Per-frame Functional Groups Sequence item. Either of these items may have a Frame VOI LUT Sequence (0028,9132) item. If the following elements are not found at the top level in the dataset, this method looks in the Shared Functional Groups Sequence item and the Per-frame Functional Groups Sequence items.

Tag

Name

(0028,1050)

Window Center

(0028,1051)

Window Width

(0028,1055)

Window Center & Width Explanation

For a detailed discussion on Multi-frame Functional Groups and how the DICOM_SET_IMAGE_MFG flags are used, see the topic Multi-frame Functional Groups.

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_DicomGetVOILUTCount, L_DicomGetWindow, L_DicomSetWindow, L_DicomDeleteWindow, L_DicomGetVOILUT, L_DicomSetVOILUT, L_DicomGetVOILUTData, L_DicomDeleteVOILUT

Topics:

LUT Encoding Overview

 

LUT Encoding: VOI LUT

Example

For an example, refer to L_DicomSetWindow.