References ▼
Loads the image list with frames from a Pixel Data element.
#include "Ltdic.h"
L_LTDIC_API L_UINT16 EXT_FUNCTION L_DicomGetImageListEx(hDS, pElement, hList, nIndex, nCount, nBitsPerPixel, uFlags, pfnCallback, pUserData)
A DICOM handle.
Pointer to a DICOMELEMENT structure within the Data Set.
Handle to the list of images.
Position of the first frame to get. Use zero-based indexing. For example, if there are 10 images in a list, the index of the last one is 9. To get the last image in the Pixel Data element, use ELEMENT_INDEX_MAX.
Number of frames to load into the image list.
Resulting image pixel depth. Possible values are:
| Value | Meaning |
|---|---|
| 0 | Keep the original file's pixel depth (Do not convert). |
| 1 to 8 | The specified bits per pixel in the resulting image |
| 12 | 12 bits per pixel in the resulting image. |
| 16 | 16 bits per pixel in the resulting image |
| 24 | 24 bits per pixel in the resulting image |
| 32 | 32 bits per pixel in the resulting image |
Flags which control the behavior of this function. Possible values are:
| Value | Meaning |
|---|---|
| DICOM_GETIMAGE_AUTO_LOAD_OVERLAYS | [0x0001] If set, the function will automatically extract the overlays included in the dataset and add them to the loaded image. |
| DICOM_GETIMAGE_AUTO_APPLY_MODALITY_LUT | [0x0002] If set, the function will automatically apply the "Modality LUT" when loading the image. |
| DICOM_GETIMAGE_AUTO_APPLY_VOI_LUT | [0x0004] If set, the function will automatically apply the "VOI LUT" when loading the image. |
| DICOM_GETIMAGE_ALLOW_RANGE_EXPANSION | [0x0008] (Deprecated, do not use) If set, the function will adjust the high bit and/or low bit (if possible) inside the image handle in order to hold the range of pixel values after applying the modality LUT. |
| DICOM_GETIMAGE_AUTO_SCALE_MODALITY_LUT | [0x0010] If set, the function will scale the resulting pixel data to fit within the range of 0 to 2^BitsPerPixel-1 if any of the values would exceed that range. |
| DICOM_GETIMAGE_AUTO_SCALE_VOI_LUT | [0x0020] Only used in conjunction with DICOM_GETIMAGE_AUTO_SCALE_MODALITY_LUT. If set, the function will rescale the VOI LUT to match the rescale that was performed by DICOM_GETIMAGE_AUTO_SCALE_MODALITY_LUT. |
| DICOM_GETIMAGE_AUTODETECT_INVALID_RLE_COMPRESSION | [0x0040] For RLE compressed, automatically detects if the MSB and LSB segments are written in the incorrect order. |
| DICOM_GETIMAGE_RLE_SWAP_SEGMENTS | [0x0080] Swaps the MSB and LSB segments when loading RLE compressed data. This flag can be used to load RLE compressed data that is stored incorrectly in this manner. Use this flag only in instances where it is known that the RLE compressed data is stored incorrectly. To automatically detect/correct incorrectly stored RLE compressed data, pass the DICOM_GETIMAGE_AUTODETECT_INVALID_RLE_COMPRESSION flag instead. |
| DICOM_GETIMAGE_VOI_LUT_PAINT_ONLY | [0x0200] Automatically applies the "VOI LUT" when loading the image, but only for display purposes |
| DICOM_GETIMAGE_USE_DISK | [0x0400] Allocates the memory for loading the image using hard disk space (if possible). |
| DICOM_GETIMAGE_FROM_FLTLOAD | [0x8000] Internal Use Only. |
| DICOM_GETIMAGE_KEEP_COLOR_PALETTE | [0x10000] When Photometric Interpretation is 'PALETTE COLOR', returns a grayscale image with a color palette. Without this flag, 'PALETTE COLOR' images are converted to 24-RGB |
| DICOM_GETIMAGE_RESERVED1 | [0x20000] Internal Use Only. |
Callback Function for additional processing. Use the function pointer as the value of this parameter.
The callback function must adhere to the function prototype described in the GETIMAGECALLBACK function.
Void pointer that you can use to pass one or more additional parameters that the callback function needs.
To use this feature, assign a value to a variable or create a structure that contains as many fields as you need. Then, in this parameter, pass the address of that variable or structure, casting it to L_VOID *. The callback function, which receives the address in its own pUserData parameter, can cast it to a pointer of the appropriate data type to access your variable or structure. If additional parameters are not needed, you can pass NULL in this parameter.
| Value | Meaning |
|---|---|
| DICOM_SUCCESS | The function was successful. |
| >0 | An error occurred. Refer to Return Codes. |
The difference between L_DicomGetImageListEx and L_DicomGetImageList is that L_DicomGetImageListEx includes a callback function, whereas L_DicomGetImageList does not.
Win32, x64, Linux.