capGetDriverDescriptionA

// AVICAP32.dll  (ANSI / -A)
#include <windows.h>

BOOL capGetDriverDescriptionA(
    DWORD wDriverIndex,
    LPSTR lpszName,
    INT cbName,
    LPSTR lpszVer,
    INT cbVer
);

<DllImport("AVICAP32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function capGetDriverDescriptionA(
    wDriverIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpszName As System.Text.StringBuilder,   ' LPSTR out
    cbName As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> lpszVer As System.Text.StringBuilder,   ' LPSTR out
    cbVer As Integer   ' INT
) As Boolean
End Function

' wDriverIndex : DWORD
' lpszName : LPSTR out
' cbName : INT
' lpszVer : LPSTR out
' cbVer : INT
Declare PtrSafe Function capGetDriverDescriptionA Lib "avicap32" ( _
    ByVal wDriverIndex As Long, _
    ByVal lpszName As String, _
    ByVal cbName As Long, _
    ByVal lpszVer As String, _
    ByVal cbVer 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

capGetDriverDescriptionA = ctypes.windll.avicap32.capGetDriverDescriptionA
capGetDriverDescriptionA.restype = wintypes.BOOL
capGetDriverDescriptionA.argtypes = [
    wintypes.DWORD,  # wDriverIndex : DWORD
    wintypes.LPSTR,  # lpszName : LPSTR out
    ctypes.c_int,  # cbName : INT
    wintypes.LPSTR,  # lpszVer : LPSTR out
    ctypes.c_int,  # cbVer : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('AVICAP32.dll')
capGetDriverDescriptionA = Fiddle::Function.new(
  lib['capGetDriverDescriptionA'],
  [
    -Fiddle::TYPE_INT,  # wDriverIndex : DWORD
    Fiddle::TYPE_VOIDP,  # lpszName : LPSTR out
    Fiddle::TYPE_INT,  # cbName : INT
    Fiddle::TYPE_VOIDP,  # lpszVer : LPSTR out
    Fiddle::TYPE_INT,  # cbVer : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "avicap32")]
extern "system" {
    fn capGetDriverDescriptionA(
        wDriverIndex: u32,  // DWORD
        lpszName: *mut u8,  // LPSTR out
        cbName: i32,  // INT
        lpszVer: *mut u8,  // LPSTR out
        cbVer: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("AVICAP32.dll", CharSet = CharSet.Ansi)]
public static extern bool capGetDriverDescriptionA(uint wDriverIndex, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpszName, int cbName, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpszVer, int cbVer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'AVICAP32_capGetDriverDescriptionA' -Namespace Win32 -PassThru
# $api::capGetDriverDescriptionA(wDriverIndex, lpszName, cbName, lpszVer, cbVer)

#uselib "AVICAP32.dll"
#func global capGetDriverDescriptionA "capGetDriverDescriptionA" sptr, sptr, sptr, sptr, sptr
; capGetDriverDescriptionA wDriverIndex, varptr(lpszName), cbName, varptr(lpszVer), cbVer   ; 戻り値は stat
; wDriverIndex : DWORD -> "sptr"
; lpszName : LPSTR out -> "sptr"
; cbName : INT -> "sptr"
; lpszVer : LPSTR out -> "sptr"
; cbVer : INT -> "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 "AVICAP32.dll"
#cfunc global capGetDriverDescriptionA "capGetDriverDescriptionA" int, var, int, var, int
; res = capGetDriverDescriptionA(wDriverIndex, lpszName, cbName, lpszVer, cbVer)
; wDriverIndex : DWORD -> "int"
; lpszName : LPSTR out -> "var"
; cbName : INT -> "int"
; lpszVer : LPSTR out -> "var"
; cbVer : INT -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL capGetDriverDescriptionA(DWORD wDriverIndex, LPSTR lpszName, INT cbName, LPSTR lpszVer, INT cbVer)
#uselib "AVICAP32.dll"
#cfunc global capGetDriverDescriptionA "capGetDriverDescriptionA" int, var, int, var, int
; res = capGetDriverDescriptionA(wDriverIndex, lpszName, cbName, lpszVer, cbVer)
; wDriverIndex : DWORD -> "int"
; lpszName : LPSTR out -> "var"
; cbName : INT -> "int"
; lpszVer : LPSTR out -> "var"
; cbVer : INT -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	avicap32 = windows.NewLazySystemDLL("AVICAP32.dll")
	proccapGetDriverDescriptionA = avicap32.NewProc("capGetDriverDescriptionA")
)

// wDriverIndex (DWORD), lpszName (LPSTR out), cbName (INT), lpszVer (LPSTR out), cbVer (INT)
r1, _, err := proccapGetDriverDescriptionA.Call(
	uintptr(wDriverIndex),
	uintptr(lpszName),
	uintptr(cbName),
	uintptr(lpszVer),
	uintptr(cbVer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function capGetDriverDescriptionA(
  wDriverIndex: DWORD;   // DWORD
  lpszName: PAnsiChar;   // LPSTR out
  cbName: Integer;   // INT
  lpszVer: PAnsiChar;   // LPSTR out
  cbVer: Integer   // INT
): BOOL; stdcall;
  external 'AVICAP32.dll' name 'capGetDriverDescriptionA';

result := DllCall("AVICAP32\capGetDriverDescriptionA"
    , "UInt", wDriverIndex   ; DWORD
    , "Ptr", lpszName   ; LPSTR out
    , "Int", cbName   ; INT
    , "Ptr", lpszVer   ; LPSTR out
    , "Int", cbVer   ; INT
    , "Int")   ; return: BOOL

●capGetDriverDescriptionA(wDriverIndex, lpszName, cbName, lpszVer, cbVer) = DLL("AVICAP32.dll", "bool capGetDriverDescriptionA(dword, char*, int, char*, int)")
# 呼び出し: capGetDriverDescriptionA(wDriverIndex, lpszName, cbName, lpszVer, cbVer)
# wDriverIndex : DWORD -> "dword"
# lpszName : LPSTR out -> "char*"
# cbName : INT -> "int"
# lpszVer : LPSTR out -> "char*"
# cbVer : INT -> "int"
# 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)。