The Documentation doesn’t give any guidance on writing Controls. And the two examples (“Eye Control” and “HostedPluginExample”) are quite sparsely documented as well.
For instance, what’s the meaning of the two toolbar icon fields? One source says “This is the BMP name” - but they’re declared as longs. Am I supposed to cast those to pointers?
The “flags” are missing some docs as well.
And probably more.
Was there never a doc for controls or did it go missing?