iup v3.27.0-alpha.2 (2019-06-21T20:15:10Z)

CD_CGMVDCEXTCB

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.

version(CD)

extern (C) @nogc nothrow

enum CD_CGMVDCEXTCB = 3;

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