Hasty Briefsbeta

Closures as Win32 Window Procedures

2 days ago
https://nullprogram.com/blog/2025/12/12/
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  • #JIT
  • #Win32
  • #Closures
  • Technique for creating closures in C using JIT-compiled wrappers.
  • Enhancing Win32 window procedure callbacks with a fifth argument for extra context.
  • Using GWLP_USERDATA for program state access in window procedures.
  • Allocating executable memory for trampolines in a COFF executable.
  • Creating a trampoline compiler to bind context pointers to window procedures.
  • Practical applications include custom allocator interfaces with context.
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