THPDFBarcode.DoChange Method
Provides do change behaviour for the barcode workflow. Use it when the surrounding API family needs explicit control over PDF objects, page content, resources, conformance, or diagnostics
Declaration
procedure DoChange; virtual;Unit
HPDFBarcode
Parameters
| Name | Purpose |
|---|---|
| This member does not expose explicit parameters | |
Return value
This member does not return a value
Usage notes
- Use this API in the barcode workflow before the affected page, resource, field, or catalog object is finalised
- Keep object names, field names, resource names, and returned handles stable until the document is finalised
- Set barcode geometry and text before calling drawing methods