dlgProc

Undocumented in source but is binding to Windows. You might be able to learn more by searching the web for its name.
extern (Windows) nothrow @nogc
core.sys.windows.windef.BOOL
dlgProc
(
core.sys.windows.windef.HWND hwnd
,
core.sys.windows.windef.UINT message
,
core.sys.windows.windef.WPARAM wParam
,
core.sys.windows.windef.LPARAM lParam
)

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