https://issues.dlang.org/show_bug.cgi?id=24515

          Issue ID: 24515
           Summary: Incorrect definition of GetMessageExtraInfo
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: kytodragon@e.mail.de

The function GetMessageExtraInfo in core.sys.windows.winuser is defined as

LONG GetMessageExtraInfo();

but it should be

LPARAM GetMessageExtraInfo();

as seen here: https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getmessageextrainfo

This results in compilation errors on x64 Windows systems.

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