A DicomQuery Object is an externally creatable OLE automation object that facilitates the querying of information and retrieval of images from DICOM servers that support the Query/Retrieve protocols as a Service Class Provider (SCP)
A useful feature of this object is that is re-usable, so as the user descends though a hierarchical search, new constraints may be added, and the search repeated, with having to re-set those already used.
The query object can be used either to retrieve images to itself for data extraction, conversion to JPEG etc., or it may initiate DICOM C-MOVE requests to send the images to another entity, commonly a DicomViewer control.
An instance of this object may be created using the title “DicomObjects.DicomQuery”, and in Visual Basic the code would be:
| Creat a DicomQuery |
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|---|---|
Dim q As DicomQuery Set q=CreateObject(“DicomObjects.DicomQuery”) | |
Alternatively, the DicomViewer’s New method may be used.