SQLErrorW

関数

直前のODBC関数の診断エラー情報を取得する(Unicode)。

DLLODBC32.dll文字セットUnicode (-W)呼出規約winapi

シグネチャ

// ODBC32.dll  (Unicode / -W)
#include <windows.h>

SHORT SQLErrorW(
    void* henv,
    void* hdbc,
    void* hstmt,
    WORD* wszSqlState,
    INT* pfNativeError,   // optional
    WORD* wszErrorMsg,   // optional
    SHORT cchErrorMsgMax,
    SHORT* pcchErrorMsg   // optional
);

パラメーター

名前	型	方向
henv	void*	inout
hdbc	void*	inout
hstmt	void*	inout
wszSqlState	WORD*	out
pfNativeError	INT*	outoptional
wszErrorMsg	WORD*	outoptional
cchErrorMsgMax	SHORT	in
pcchErrorMsg	SHORT*	outoptional

戻り値の型: SHORT

各言語での呼び出し定義

// ODBC32.dll  (Unicode / -W)
#include <windows.h>

SHORT SQLErrorW(
    void* henv,
    void* hdbc,
    void* hstmt,
    WORD* wszSqlState,
    INT* pfNativeError,   // optional
    WORD* wszErrorMsg,   // optional
    SHORT cchErrorMsgMax,
    SHORT* pcchErrorMsg   // optional
);

[DllImport("ODBC32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern short SQLErrorW(
    IntPtr henv,   // void* in/out
    IntPtr hdbc,   // void* in/out
    IntPtr hstmt,   // void* in/out
    out ushort wszSqlState,   // WORD* out
    IntPtr pfNativeError,   // INT* optional, out
    IntPtr wszErrorMsg,   // WORD* optional, out
    short cchErrorMsgMax,   // SHORT
    IntPtr pcchErrorMsg   // SHORT* optional, out
);

<DllImport("ODBC32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SQLErrorW(
    henv As IntPtr,   ' void* in/out
    hdbc As IntPtr,   ' void* in/out
    hstmt As IntPtr,   ' void* in/out
    <Out> ByRef wszSqlState As UShort,   ' WORD* out
    pfNativeError As IntPtr,   ' INT* optional, out
    wszErrorMsg As IntPtr,   ' WORD* optional, out
    cchErrorMsgMax As Short,   ' SHORT
    pcchErrorMsg As IntPtr   ' SHORT* optional, out
) As Short
End Function

' henv : void* in/out
' hdbc : void* in/out
' hstmt : void* in/out
' wszSqlState : WORD* out
' pfNativeError : INT* optional, out
' wszErrorMsg : WORD* optional, out
' cchErrorMsgMax : SHORT
' pcchErrorMsg : SHORT* optional, out
Declare PtrSafe Function SQLErrorW Lib "odbc32" ( _
    ByVal henv As LongPtr, _
    ByVal hdbc As LongPtr, _
    ByVal hstmt As LongPtr, _
    ByRef wszSqlState As Integer, _
    ByVal pfNativeError As LongPtr, _
    ByVal wszErrorMsg As LongPtr, _
    ByVal cchErrorMsgMax As Integer, _
    ByVal pcchErrorMsg As LongPtr) As Integer
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SQLErrorW = ctypes.windll.odbc32.SQLErrorW
SQLErrorW.restype = ctypes.c_short
SQLErrorW.argtypes = [
    ctypes.POINTER(None),  # henv : void* in/out
    ctypes.POINTER(None),  # hdbc : void* in/out
    ctypes.POINTER(None),  # hstmt : void* in/out
    ctypes.POINTER(ctypes.c_ushort),  # wszSqlState : WORD* out
    ctypes.POINTER(ctypes.c_int),  # pfNativeError : INT* optional, out
    ctypes.POINTER(ctypes.c_ushort),  # wszErrorMsg : WORD* optional, out
    ctypes.c_short,  # cchErrorMsgMax : SHORT
    ctypes.POINTER(ctypes.c_short),  # pcchErrorMsg : SHORT* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ODBC32.dll')
SQLErrorW = Fiddle::Function.new(
  lib['SQLErrorW'],
  [
    Fiddle::TYPE_VOIDP,  # henv : void* in/out
    Fiddle::TYPE_VOIDP,  # hdbc : void* in/out
    Fiddle::TYPE_VOIDP,  # hstmt : void* in/out
    Fiddle::TYPE_VOIDP,  # wszSqlState : WORD* out
    Fiddle::TYPE_VOIDP,  # pfNativeError : INT* optional, out
    Fiddle::TYPE_VOIDP,  # wszErrorMsg : WORD* optional, out
    Fiddle::TYPE_SHORT,  # cchErrorMsgMax : SHORT
    Fiddle::TYPE_VOIDP,  # pcchErrorMsg : SHORT* optional, out
  ],
  Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "odbc32")]
extern "system" {
    fn SQLErrorW(
        henv: *mut (),  // void* in/out
        hdbc: *mut (),  // void* in/out
        hstmt: *mut (),  // void* in/out
        wszSqlState: *mut u16,  // WORD* out
        pfNativeError: *mut i32,  // INT* optional, out
        wszErrorMsg: *mut u16,  // WORD* optional, out
        cchErrorMsgMax: i16,  // SHORT
        pcchErrorMsg: *mut i16  // SHORT* optional, out
    ) -> i16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ODBC32.dll", CharSet = CharSet.Unicode)]
public static extern short SQLErrorW(IntPtr henv, IntPtr hdbc, IntPtr hstmt, out ushort wszSqlState, IntPtr pfNativeError, IntPtr wszErrorMsg, short cchErrorMsgMax, IntPtr pcchErrorMsg);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ODBC32_SQLErrorW' -Namespace Win32 -PassThru
# $api::SQLErrorW(henv, hdbc, hstmt, wszSqlState, pfNativeError, wszErrorMsg, cchErrorMsgMax, pcchErrorMsg)

#uselib "ODBC32.dll"
#func global SQLErrorW "SQLErrorW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; SQLErrorW henv, hdbc, hstmt, varptr(wszSqlState), varptr(pfNativeError), varptr(wszErrorMsg), cchErrorMsgMax, varptr(pcchErrorMsg)   ; 戻り値は stat
; henv : void* in/out -> "wptr"
; hdbc : void* in/out -> "wptr"
; hstmt : void* in/out -> "wptr"
; wszSqlState : WORD* out -> "wptr"
; pfNativeError : INT* optional, out -> "wptr"
; wszErrorMsg : WORD* optional, out -> "wptr"
; cchErrorMsgMax : SHORT -> "wptr"
; pcchErrorMsg : SHORT* optional, out -> "wptr"
; ※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 SQLErrorW "SQLErrorW" sptr, sptr, sptr, var, var, var, int, var
; res = SQLErrorW(henv, hdbc, hstmt, wszSqlState, pfNativeError, wszErrorMsg, cchErrorMsgMax, pcchErrorMsg)
; henv : void* in/out -> "sptr"
; hdbc : void* in/out -> "sptr"
; hstmt : void* in/out -> "sptr"
; wszSqlState : WORD* out -> "var"
; pfNativeError : INT* optional, out -> "var"
; wszErrorMsg : WORD* optional, out -> "var"
; cchErrorMsgMax : SHORT -> "int"
; pcchErrorMsg : 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 SQLErrorW "SQLErrorW" sptr, sptr, sptr, sptr, sptr, sptr, int, sptr
; res = SQLErrorW(henv, hdbc, hstmt, varptr(wszSqlState), varptr(pfNativeError), varptr(wszErrorMsg), cchErrorMsgMax, varptr(pcchErrorMsg))
; henv : void* in/out -> "sptr"
; hdbc : void* in/out -> "sptr"
; hstmt : void* in/out -> "sptr"
; wszSqlState : WORD* out -> "sptr"
; pfNativeError : INT* optional, out -> "sptr"
; wszErrorMsg : WORD* optional, out -> "sptr"
; cchErrorMsgMax : SHORT -> "int"
; pcchErrorMsg : 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 SQLErrorW(void* henv, void* hdbc, void* hstmt, WORD* wszSqlState, INT* pfNativeError, WORD* wszErrorMsg, SHORT cchErrorMsgMax, SHORT* pcchErrorMsg)
#uselib "ODBC32.dll"
#cfunc global SQLErrorW "SQLErrorW" intptr, intptr, intptr, var, var, var, int, var
; res = SQLErrorW(henv, hdbc, hstmt, wszSqlState, pfNativeError, wszErrorMsg, cchErrorMsgMax, pcchErrorMsg)
; henv : void* in/out -> "intptr"
; hdbc : void* in/out -> "intptr"
; hstmt : void* in/out -> "intptr"
; wszSqlState : WORD* out -> "var"
; pfNativeError : INT* optional, out -> "var"
; wszErrorMsg : WORD* optional, out -> "var"
; cchErrorMsgMax : SHORT -> "int"
; pcchErrorMsg : 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 SQLErrorW(void* henv, void* hdbc, void* hstmt, WORD* wszSqlState, INT* pfNativeError, WORD* wszErrorMsg, SHORT cchErrorMsgMax, SHORT* pcchErrorMsg)
#uselib "ODBC32.dll"
#cfunc global SQLErrorW "SQLErrorW" intptr, intptr, intptr, intptr, intptr, intptr, int, intptr
; res = SQLErrorW(henv, hdbc, hstmt, varptr(wszSqlState), varptr(pfNativeError), varptr(wszErrorMsg), cchErrorMsgMax, varptr(pcchErrorMsg))
; henv : void* in/out -> "intptr"
; hdbc : void* in/out -> "intptr"
; hstmt : void* in/out -> "intptr"
; wszSqlState : WORD* out -> "intptr"
; pfNativeError : INT* optional, out -> "intptr"
; wszErrorMsg : WORD* optional, out -> "intptr"
; cchErrorMsgMax : SHORT -> "int"
; pcchErrorMsg : 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")
	procSQLErrorW = odbc32.NewProc("SQLErrorW")
)

// henv (void* in/out), hdbc (void* in/out), hstmt (void* in/out), wszSqlState (WORD* out), pfNativeError (INT* optional, out), wszErrorMsg (WORD* optional, out), cchErrorMsgMax (SHORT), pcchErrorMsg (SHORT* optional, out)
r1, _, err := procSQLErrorW.Call(
	uintptr(henv),
	uintptr(hdbc),
	uintptr(hstmt),
	uintptr(wszSqlState),
	uintptr(pfNativeError),
	uintptr(wszErrorMsg),
	uintptr(cchErrorMsgMax),
	uintptr(pcchErrorMsg),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // SHORT

function SQLErrorW(
  henv: Pointer;   // void* in/out
  hdbc: Pointer;   // void* in/out
  hstmt: Pointer;   // void* in/out
  wszSqlState: Pointer;   // WORD* out
  pfNativeError: Pointer;   // INT* optional, out
  wszErrorMsg: Pointer;   // WORD* optional, out
  cchErrorMsgMax: Smallint;   // SHORT
  pcchErrorMsg: Pointer   // SHORT* optional, out
): Smallint; stdcall;
  external 'ODBC32.dll' name 'SQLErrorW';

result := DllCall("ODBC32\SQLErrorW"
    , "Ptr", henv   ; void* in/out
    , "Ptr", hdbc   ; void* in/out
    , "Ptr", hstmt   ; void* in/out
    , "Ptr", wszSqlState   ; WORD* out
    , "Ptr", pfNativeError   ; INT* optional, out
    , "Ptr", wszErrorMsg   ; WORD* optional, out
    , "Short", cchErrorMsgMax   ; SHORT
    , "Ptr", pcchErrorMsg   ; SHORT* optional, out
    , "Short")   ; return: SHORT

●SQLErrorW(henv, hdbc, hstmt, wszSqlState, pfNativeError, wszErrorMsg, cchErrorMsgMax, pcchErrorMsg) = DLL("ODBC32.dll", "int SQLErrorW(void*, void*, void*, void*, void*, void*, int, void*)")
# 呼び出し: SQLErrorW(henv, hdbc, hstmt, wszSqlState, pfNativeError, wszErrorMsg, cchErrorMsgMax, pcchErrorMsg)
# henv : void* in/out -> "void*"
# hdbc : void* in/out -> "void*"
# hstmt : void* in/out -> "void*"
# wszSqlState : WORD* out -> "void*"
# pfNativeError : INT* optional, out -> "void*"
# wszErrorMsg : WORD* optional, out -> "void*"
# cchErrorMsgMax : SHORT -> "int"
# pcchErrorMsg : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。