Dicom HL7 data software

We have a product that records patients in the Scan Room of imaging devices like MRI's CT's and Xrays. Our cameras connect to a computer running our program (C++) that records and saves these video files. Our program is already set to start recording with one click, and stop/save the video file in one click. The Tech will start recording before the patient enters the room, and end the recording when the patient leaves the scan room. We would like to save these video files under the patient ID of the patient that is being recorded. We don't want to have the tech manually enter the patient number, we want the tech to be able to choose from a list like the work-list that most modalities e.g MRI. We need to emulate the worklist of the modality. This needs to ultimately work for more than just MRI's like CTs and other hospital equipment that generates worklists. We know that most modalities communicate using DICOM protocol and have a specific modality Identification Number that lets the RIS server know what worklist to send them. We need to simulate this communication with the server to allow the tech to choose from a list of scheduled patients for that modality. Once the patient is selected, our program will create a new video file using the patient ID in the video file name and begin saving the video to that file.