SQLDataSources

関数

利用可能なODBCデータソースを順に列挙する。

DLLODBC32.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// ODBC32.dll  (ANSI / -A)
#include <windows.h>

SHORT SQLDataSources(
    void* EnvironmentHandle,
    WORD Direction,
    BYTE* ServerName,   // optional
    SHORT BufferLength1,
    SHORT* NameLength1Ptr,   // optional
    BYTE* Description,   // optional
    SHORT BufferLength2,
    SHORT* NameLength2Ptr   // optional
);

パラメーター

名前	型	方向
EnvironmentHandle	void*	inout
Direction	WORD	in
ServerName	BYTE*	outoptional
BufferLength1	SHORT	in
NameLength1Ptr	SHORT*	outoptional
Description	BYTE*	outoptional
BufferLength2	SHORT	in
NameLength2Ptr	SHORT*	outoptional

戻り値の型: SHORT

各言語での呼び出し定義

// ODBC32.dll  (ANSI / -A)
#include <windows.h>

SHORT SQLDataSources(
    void* EnvironmentHandle,
    WORD Direction,
    BYTE* ServerName,   // optional
    SHORT BufferLength1,
    SHORT* NameLength1Ptr,   // optional
    BYTE* Description,   // optional
    SHORT BufferLength2,
    SHORT* NameLength2Ptr   // optional
);

[DllImport("ODBC32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern short SQLDataSources(
    IntPtr EnvironmentHandle,   // void* in/out
    ushort Direction,   // WORD
    IntPtr ServerName,   // BYTE* optional, out
    short BufferLength1,   // SHORT
    IntPtr NameLength1Ptr,   // SHORT* optional, out
    IntPtr Description,   // BYTE* optional, out
    short BufferLength2,   // SHORT
    IntPtr NameLength2Ptr   // SHORT* optional, out
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SQLDataSources(
    EnvironmentHandle As IntPtr,   ' void* in/out
    Direction As UShort,   ' WORD
    ServerName As IntPtr,   ' BYTE* optional, out
    BufferLength1 As Short,   ' SHORT
    NameLength1Ptr As IntPtr,   ' SHORT* optional, out
    Description As IntPtr,   ' BYTE* optional, out
    BufferLength2 As Short,   ' SHORT
    NameLength2Ptr As IntPtr   ' SHORT* optional, out
) As Short
End Function

' EnvironmentHandle : void* in/out
' Direction : WORD
' ServerName : BYTE* optional, out
' BufferLength1 : SHORT
' NameLength1Ptr : SHORT* optional, out
' Description : BYTE* optional, out
' BufferLength2 : SHORT
' NameLength2Ptr : SHORT* optional, out
Declare PtrSafe Function SQLDataSources Lib "odbc32" ( _
    ByVal EnvironmentHandle As LongPtr, _
    ByVal Direction As Integer, _
    ByVal ServerName As LongPtr, _
    ByVal BufferLength1 As Integer, _
    ByVal NameLength1Ptr As LongPtr, _
    ByVal Description As LongPtr, _
    ByVal BufferLength2 As Integer, _
    ByVal NameLength2Ptr As LongPtr) As Integer
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SQLDataSources = ctypes.windll.odbc32.SQLDataSources
SQLDataSources.restype = ctypes.c_short
SQLDataSources.argtypes = [
    ctypes.POINTER(None),  # EnvironmentHandle : void* in/out
    ctypes.c_ushort,  # Direction : WORD
    ctypes.POINTER(ctypes.c_ubyte),  # ServerName : BYTE* optional, out
    ctypes.c_short,  # BufferLength1 : SHORT
    ctypes.POINTER(ctypes.c_short),  # NameLength1Ptr : SHORT* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # Description : BYTE* optional, out
    ctypes.c_short,  # BufferLength2 : SHORT
    ctypes.POINTER(ctypes.c_short),  # NameLength2Ptr : SHORT* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLDataSources = Fiddle::Function.new(
  lib['SQLDataSources'],
  [
    Fiddle::TYPE_VOIDP,  # EnvironmentHandle : void* in/out
    -Fiddle::TYPE_SHORT,  # Direction : WORD
    Fiddle::TYPE_VOIDP,  # ServerName : BYTE* optional, out
    Fiddle::TYPE_SHORT,  # BufferLength1 : SHORT
    Fiddle::TYPE_VOIDP,  # NameLength1Ptr : SHORT* optional, out
    Fiddle::TYPE_VOIDP,  # Description : BYTE* optional, out
    Fiddle::TYPE_SHORT,  # BufferLength2 : SHORT
    Fiddle::TYPE_VOIDP,  # NameLength2Ptr : SHORT* optional, out
  ],
  Fiddle::TYPE_SHORT)

#[link(name = "odbc32")]
extern "system" {
    fn SQLDataSources(
        EnvironmentHandle: *mut (),  // void* in/out
        Direction: u16,  // WORD
        ServerName: *mut u8,  // BYTE* optional, out
        BufferLength1: i16,  // SHORT
        NameLength1Ptr: *mut i16,  // SHORT* optional, out
        Description: *mut u8,  // BYTE* optional, out
        BufferLength2: i16,  // SHORT
        NameLength2Ptr: *mut i16  // SHORT* optional, out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Ansi)]
public static extern short SQLDataSources(IntPtr EnvironmentHandle, ushort Direction, IntPtr ServerName, short BufferLength1, IntPtr NameLength1Ptr, IntPtr Description, short BufferLength2, IntPtr NameLength2Ptr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLDataSources' -Namespace Win32 -PassThru
# $api::SQLDataSources(EnvironmentHandle, Direction, ServerName, BufferLength1, NameLength1Ptr, Description, BufferLength2, NameLength2Ptr)

#uselib "ODBC32.dll"
#func global SQLDataSources "SQLDataSources" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SQLDataSources EnvironmentHandle, Direction, varptr(ServerName), BufferLength1, varptr(NameLength1Ptr), varptr(Description), BufferLength2, varptr(NameLength2Ptr)   ; 戻り値は stat
; EnvironmentHandle : void* in/out -> "sptr"
; Direction : WORD -> "sptr"
; ServerName : BYTE* optional, out -> "sptr"
; BufferLength1 : SHORT -> "sptr"
; NameLength1Ptr : SHORT* optional, out -> "sptr"
; Description : BYTE* optional, out -> "sptr"
; BufferLength2 : SHORT -> "sptr"
; NameLength2Ptr : SHORT* optional, out -> "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。

出力引数:

#uselib "ODBC32.dll"
#cfunc global SQLDataSources "SQLDataSources" sptr, int, var, int, var, var, int, var
; res = SQLDataSources(EnvironmentHandle, Direction, ServerName, BufferLength1, NameLength1Ptr, Description, BufferLength2, NameLength2Ptr)
; EnvironmentHandle : void* in/out -> "sptr"
; Direction : WORD -> "int"
; ServerName : BYTE* optional, out -> "var"
; BufferLength1 : SHORT -> "int"
; NameLength1Ptr : SHORT* optional, out -> "var"
; Description : BYTE* optional, out -> "var"
; BufferLength2 : SHORT -> "int"
; NameLength2Ptr : SHORT* optional, out -> "var"
; ※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。#uselib "ODBC32.dll"
#cfunc global SQLDataSources "SQLDataSources" sptr, int, sptr, int, sptr, sptr, int, sptr
; res = SQLDataSources(EnvironmentHandle, Direction, varptr(ServerName), BufferLength1, varptr(NameLength1Ptr), varptr(Description), BufferLength2, varptr(NameLength2Ptr))
; EnvironmentHandle : void* in/out -> "sptr"
; Direction : WORD -> "int"
; ServerName : BYTE* optional, out -> "sptr"
; BufferLength1 : SHORT -> "int"
; NameLength1Ptr : SHORT* optional, out -> "sptr"
; Description : BYTE* optional, out -> "sptr"
; BufferLength2 : SHORT -> "int"
; NameLength2Ptr : SHORT* optional, out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; SHORT SQLDataSources(void* EnvironmentHandle, WORD Direction, BYTE* ServerName, SHORT BufferLength1, SHORT* NameLength1Ptr, BYTE* Description, SHORT BufferLength2, SHORT* NameLength2Ptr)
#uselib "ODBC32.dll"
#cfunc global SQLDataSources "SQLDataSources" intptr, int, var, int, var, var, int, var
; res = SQLDataSources(EnvironmentHandle, Direction, ServerName, BufferLength1, NameLength1Ptr, Description, BufferLength2, NameLength2Ptr)
; EnvironmentHandle : void* in/out -> "intptr"
; Direction : WORD -> "int"
; ServerName : BYTE* optional, out -> "var"
; BufferLength1 : SHORT -> "int"
; NameLength1Ptr : SHORT* optional, out -> "var"
; Description : BYTE* optional, out -> "var"
; BufferLength2 : SHORT -> "int"
; NameLength2Ptr : SHORT* optional, out -> "var"
; ※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。; SHORT SQLDataSources(void* EnvironmentHandle, WORD Direction, BYTE* ServerName, SHORT BufferLength1, SHORT* NameLength1Ptr, BYTE* Description, SHORT BufferLength2, SHORT* NameLength2Ptr)
#uselib "ODBC32.dll"
#cfunc global SQLDataSources "SQLDataSources" intptr, int, intptr, int, intptr, intptr, int, intptr
; res = SQLDataSources(EnvironmentHandle, Direction, varptr(ServerName), BufferLength1, varptr(NameLength1Ptr), varptr(Description), BufferLength2, varptr(NameLength2Ptr))
; EnvironmentHandle : void* in/out -> "intptr"
; Direction : WORD -> "int"
; ServerName : BYTE* optional, out -> "intptr"
; BufferLength1 : SHORT -> "int"
; NameLength1Ptr : SHORT* optional, out -> "intptr"
; Description : BYTE* optional, out -> "intptr"
; BufferLength2 : SHORT -> "int"
; NameLength2Ptr : SHORT* optional, out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	odbc32 = windows.NewLazySystemDLL("ODBC32.dll")
	procSQLDataSources = odbc32.NewProc("SQLDataSources")
)

// EnvironmentHandle (void* in/out), Direction (WORD), ServerName (BYTE* optional, out), BufferLength1 (SHORT), NameLength1Ptr (SHORT* optional, out), Description (BYTE* optional, out), BufferLength2 (SHORT), NameLength2Ptr (SHORT* optional, out)
r1, _, err := procSQLDataSources.Call(
	uintptr(EnvironmentHandle),
	uintptr(Direction),
	uintptr(ServerName),
	uintptr(BufferLength1),
	uintptr(NameLength1Ptr),
	uintptr(Description),
	uintptr(BufferLength2),
	uintptr(NameLength2Ptr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLDataSources(
  EnvironmentHandle: Pointer;   // void* in/out
  Direction: Word;   // WORD
  ServerName: Pointer;   // BYTE* optional, out
  BufferLength1: Smallint;   // SHORT
  NameLength1Ptr: Pointer;   // SHORT* optional, out
  Description: Pointer;   // BYTE* optional, out
  BufferLength2: Smallint;   // SHORT
  NameLength2Ptr: Pointer   // SHORT* optional, out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLDataSources';

result := DllCall("ODBC32\SQLDataSources"
    , "Ptr", EnvironmentHandle   ; void* in/out
    , "UShort", Direction   ; WORD
    , "Ptr", ServerName   ; BYTE* optional, out
    , "Short", BufferLength1   ; SHORT
    , "Ptr", NameLength1Ptr   ; SHORT* optional, out
    , "Ptr", Description   ; BYTE* optional, out
    , "Short", BufferLength2   ; SHORT
    , "Ptr", NameLength2Ptr   ; SHORT* optional, out
    , "Short")   ; return: SHORT

●SQLDataSources(EnvironmentHandle, Direction, ServerName, BufferLength1, NameLength1Ptr, Description, BufferLength2, NameLength2Ptr) = DLL("ODBC32.dll", "int SQLDataSources(void*, int, void*, int, void*, void*, int, void*)")
# 呼び出し: SQLDataSources(EnvironmentHandle, Direction, ServerName, BufferLength1, NameLength1Ptr, Description, BufferLength2, NameLength2Ptr)
# EnvironmentHandle : void* in/out -> "void*"
# Direction : WORD -> "int"
# ServerName : BYTE* optional, out -> "void*"
# BufferLength1 : SHORT -> "int"
# NameLength1Ptr : SHORT* optional, out -> "void*"
# Description : BYTE* optional, out -> "void*"
# BufferLength2 : SHORT -> "int"
# NameLength2Ptr : SHORT* optional, out -> "void*"
# 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)。