| LEADTOOLS DICOM C DLL Help > Function References > L_DicomSendAssociateRequest | 
#include "ltdic.h"
L_LTDIC_API L_INT L_DicomSendAssociateRequest(hNet, hPDU)
| HDICOMNET hNet; | /* a DICOM Network handle */ | 
| HDICOMPDU hPDU; | /* a DICOM Association handle */ | 
Sends an Associate Request message to a connection. This function is available in the PACS Imaging Toolkit.
| Parameter | Description | 
| hNet | A DICOM Network handle. This is the handle created by calling L_DicomCreateNet. | 
| hPDU | A DICOM Association handle. This is the handle created by calling L_DicomCreateAssociate. | 
Returns
| DICOM_SUCCESS | The function was successful. | 
| >0 | An error occurred. Refer to Return Codes. | 
Comments
Calling L_DicomSendAssociateRequest on an SCU generates a call to RECEIVEASSOCIATEREQUESTCALLBACK on the SCP. Within the callback function the SCP may accept or reject the Association request by calling L_DicomSendAssociateAccept or L_DicomSendAssociateReject.
A DICOM Association must be established between an SCU and an SCP before any DICOM messages or data can be transmitted between them. For more information on creating a DICOM Association, refer to Creating a DICOM Associate Connection.
When the DICOM Association is no longer needed, it should be ended. For more information, refer to Closing a DICOM Association.
Required DLLs and Libraries
| For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application | 
Win32, x64, Linux.
See Also
| Functions: | RECEIVEASSOCIATEREQUESTCALLBACK, L_DicomCreateAssociate, L_DicomSendAssociateAccept, L_DicomSendAssociateReject, L_DicomSendReleaseRequest | 
| Topics: | |
| 
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 | 
Example
This example sends an Associate Request message to a connection
L_INT DicomSendAssociateRequestExample(HDICOMNET hNet)
{
   HDICOMPDU hPDU=NULL;
   L_INT nRet;
   /* create the Associate Class as Request */
   hPDU = L_DicomCreateAssociate(TRUE);
   
   /* use default for association */
   L_DicomDefaultAssociate(hPDU);
   
   /* this shows a client sending to its server */
   nRet = L_DicomSendAssociateRequest(hNet, hPDU);
   if (nRet != DICOM_SUCCESS)
      return nRet;
   /* now we can free the class */
   L_DicomFreeAssociate(hPDU);
   return DICOM_SUCCESS;
}