TMS Diagram Studio V4.18 Full Source

I do have a suggestion, though, but it's not optimal: StarUML was written in Delphi, and it contains custom components for creating UML diagrams. The source is available for download, and it seems to me that the UML primitives (boxes, lines, clouds and such) could be adapted to your purpose. The web site is

You might want to have a look at TMS Software's Diagram Studio, not specifically a mind-mapping component but it does offer diagramming functionality in your delphi app. and a developer license does come with source code.

TMS Diagram Studio v4.18 Full Source

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