pblRegionCombineBR

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
version(BindBlend2D_Dynamic)
extern (C) @nogc nothrow
alias pblRegionCombineBR = BLResult function
(,
const(BLBoxI)* a
,
const(BLRegionCore)* b
,)

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