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#include "ltdic.h"
L_LTDIC_API L_VOID L_DicomEnableOptimizedMemorySend(hNet, bEnabled)
Enables or disables the use of optimized memory when sending files.
Handle to an existing DICOM Network. This is the handle returned from the L_DicomCreateNet function.
Flag that enables or disables the use of optimized memory when sending files.
| Value | Meaning |
|---|---|
| TRUE | Enables the use of optimized memory when sending large files. |
| FALSE | Disables the use of optimized memory when sending large files. |
| Value | Meaning |
|---|---|
| DICOM_SUCCESS | The function was successful. |
| >0 | An error occurred. Refer to Return Codes. |
It is possible for the toolkit to allocate large memory buffers when sending a large file to a server. Use this function to control whether to optimize memory useage to the minimum possible.
Note: The security mode (the nMode parameter used when calling L_DicomCreateNet or L_DicomCreateNetExt) must be set to DICOM_SECURE_NONE in order for this function to work.
Required DLLs and Libraries
Win32, x64, Linux.
#include <memory.h>L_INT DicomL_DicomEnableOptimizedMemorySendExample(HDICOMNET hNet, HWND hWnd){L_TCHAR * pszClass=NULL;L_TCHAR * pszInstance=NULL;L_TCHAR szMsg[200];L_TCHAR szFilter[100]= TEXT("AllFiles (*.*)\0*.*\0Dicom Files (*.dcm)\0*.dcm\0\0");L_UCHAR nID;HDICOMPDU hPDU;OPENFILENAME OpenFileName;L_TCHAR szFile[MAX_PATH] = TEXT("\0");L_INT nRet;HDICOMDS hDS=NULL;pDICOMELEMENT pElement=NULL;OPENDLGPARAMS DlgParams;/* send a store request to the server */hPDU = L_DicomGetAssociate(hNet);/* pick the data set to send */lstrcpy( szFile, TEXT(""));memset ( &OpenFileName, 0, sizeof ( OPENFILENAME ) ) ;memset ( &DlgParams, 0, sizeof ( OPENDLGPARAMS ) ) ;OpenFileName.lStructSize = sizeof(OPENFILENAME);OpenFileName.hwndOwner = hWnd;OpenFileName.lpstrFilter = szFilter;OpenFileName.lpstrCustomFilter = NULL;OpenFileName.nMaxCustFilter = 0;OpenFileName.nFilterIndex = 0;OpenFileName.lpstrFile = szFile;OpenFileName.nMaxFile = sizeof(szFile);OpenFileName.lpstrFileTitle = NULL;OpenFileName.nMaxFileTitle = 0;OpenFileName.lpstrInitialDir = NULL;OpenFileName.lpstrTitle = TEXT("Pick a Dicom Data Set");OpenFileName.nFileOffset = 0;OpenFileName.nFileExtension = 0;OpenFileName.lpstrDefExt = NULL;OpenFileName.lpfnHook = NULL;OpenFileName.Flags = 0;DlgParams.uStructSize = sizeof ( OPENDLGPARAMS ) ;DlgParams.pfnFileLoadCallback = NULL ;DlgParams.uDlgFlags = DLG_OPEN_SHOW_PROGRESSIVE |DLG_OPEN_SHOW_FILEINFO |DLG_OPEN_SHOW_PREVIEW |DLG_OPEN_SHOW_DELPAGE |DLG_OPEN_SHOW_LOADOPTIONS |DLG_OPEN_LOADBITMAP ;nRet = L_DlgOpen (hWnd, &OpenFileName, &DlgParams);if( SUCCESS_DLG_OK == nRet ){/* load the data set */hDS = L_DicomCreateDS(NULL);nRet = L_DicomLoadDS(hDS, szFile, 0);if(nRet != DICOM_SUCCESS){MessageBox(NULL, TEXT("Error Loading Data Set!"), TEXT("Error"), MB_OK);L_DicomFreeDS(hDS);return nRet;}pElement = L_DicomFindFirstElement(hDS, NULL, TAG_SOP_INSTANCE_UID, FALSE);pszInstance = L_DicomGetStringValue(hDS, pElement, 0, 1);pElement = L_DicomFindFirstElement(hDS, NULL, TAG_SOP_CLASS_UID, FALSE);pszClass = L_DicomGetStringValue(hDS, pElement, 0, 1);/* send the command set */nID = L_DicomFindAbstract(hPDU, pszClass);if(nID == 0){wsprintf(szMsg, TEXT("Abstract Syntax %s Not Supported by Association!"), pszClass);MessageBox(NULL, szMsg, TEXT("Error"), MB_OK);}else{L_DicomEnableOptimizedMemorySend(hNet, L_TRUE);/* now, use the high-level method to send the command set */nRet = L_DicomSendCStoreRequest(hNet, nID, 1, pszClass, pszInstance, COMMAND_PRIORITY_MEDIUM, TEXT(""), 0, hDS);if (nRet != DICOM_SUCCESS){L_DicomFreeDS(hDS);return nRet;}}L_DicomFreeDS(hDS);}return DICOM_SUCCESS;}