SymUnloadModule

// dbghelp.dll
#include <windows.h>

BOOL SymUnloadModule(
    HANDLE hProcess,
    DWORD BaseOfDll
);

<DllImport("dbghelp.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SymUnloadModule(
    hProcess As IntPtr,   ' HANDLE
    BaseOfDll As UInteger   ' DWORD
) As Boolean
End Function

' hProcess : HANDLE
' BaseOfDll : DWORD
Declare PtrSafe Function SymUnloadModule Lib "dbghelp" ( _
    ByVal hProcess As LongPtr, _
    ByVal BaseOfDll As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SymUnloadModule = ctypes.windll.dbghelp.SymUnloadModule
SymUnloadModule.restype = wintypes.BOOL
SymUnloadModule.argtypes = [
    wintypes.HANDLE,  # hProcess : HANDLE
    wintypes.DWORD,  # BaseOfDll : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
SymUnloadModule = Fiddle::Function.new(
  lib['SymUnloadModule'],
  [
    Fiddle::TYPE_VOIDP,  # hProcess : HANDLE
    -Fiddle::TYPE_INT,  # BaseOfDll : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "dbghelp")]
extern "system" {
    fn SymUnloadModule(
        hProcess: *mut core::ffi::c_void,  // HANDLE
        BaseOfDll: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("dbghelp.dll", SetLastError = true)]
public static extern bool SymUnloadModule(IntPtr hProcess, uint BaseOfDll);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SymUnloadModule' -Namespace Win32 -PassThru
# $api::SymUnloadModule(hProcess, BaseOfDll)

#uselib "dbghelp.dll"
#func global SymUnloadModule "SymUnloadModule" sptr, sptr
; SymUnloadModule hProcess, BaseOfDll   ; 戻り値は stat
; hProcess : HANDLE -> "sptr"
; BaseOfDll : DWORD -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "dbghelp.dll"
#cfunc global SymUnloadModule "SymUnloadModule" sptr, int
; res = SymUnloadModule(hProcess, BaseOfDll)
; hProcess : HANDLE -> "sptr"
; BaseOfDll : DWORD -> "int"

; BOOL SymUnloadModule(HANDLE hProcess, DWORD BaseOfDll)
#uselib "dbghelp.dll"
#cfunc global SymUnloadModule "SymUnloadModule" intptr, int
; res = SymUnloadModule(hProcess, BaseOfDll)
; hProcess : HANDLE -> "intptr"
; BaseOfDll : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procSymUnloadModule = dbghelp.NewProc("SymUnloadModule")
)

// hProcess (HANDLE), BaseOfDll (DWORD)
r1, _, err := procSymUnloadModule.Call(
	uintptr(hProcess),
	uintptr(BaseOfDll),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SymUnloadModule(
  hProcess: THandle;   // HANDLE
  BaseOfDll: DWORD   // DWORD
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SymUnloadModule';

result := DllCall("dbghelp\SymUnloadModule"
    , "Ptr", hProcess   ; HANDLE
    , "UInt", BaseOfDll   ; DWORD
    , "Int")   ; return: BOOL

●SymUnloadModule(hProcess, BaseOfDll) = DLL("dbghelp.dll", "bool SymUnloadModule(void*, dword)")
# 呼び出し: SymUnloadModule(hProcess, BaseOfDll)
# hProcess : HANDLE -> "void*"
# BaseOfDll : DWORD -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。