/// <summary>
/// 資格情報入力ダイアログの呼び出し
/// </summary>
/// <param name="caption">ダイアログのキャプション</param>
/// <param name="message">ダイアログに表示するメッセージ</param>
public static void CallCredentialDialog(string caption, string message)
{
var uiInfo = new PCREDUI_INFO();
uiInfo.cbSize = Marshal.SizeOf(uiInfo);
uiInfo.pszCaptionText = caption;
uiInfo.pszMessageText = message;
uint authPackage = 0;
IntPtr outCredBuffer;
uint outCredSize;
bool fSave = false;
if (CredUIPromptForWindowsCredentials(ref uiInfo, 0, ref authPackage, IntPtr.Zero, 0
, out outCredBuffer, out outCredSize, ref fSave, CREDUIWIN_FLAG.AUTHPACKAGE_ONLY) != 0)
{
Log.Instance.LogWrite(LogState.ERROR, GetErrorMessage());
//throw new ApplicationException("資格入力ダイアログの呼び出しに失敗しました。");
}
var userName = new StringBuilder(256);
var userNameSize = 256;
var domainName = new StringBuilder(256);
var domainNameSize = 256;
var password = new StringBuilder(256);
var passwordSize = 256;
// CredUnPackAuthenticationBufferのflagsにCREDUIWIN_GENERIC(0x1)を渡すとPasswordが平文で返ってくる
// 暗号化しておきたい場合は0を渡す
if (!CredUnPackAuthenticationBuffer(0, outCredBuffer, outCredSize, userName, ref userNameSize
, domainName, ref domainNameSize, password, ref passwordSize))
{
Log.Instance.LogWrite(LogState.ERROR, GetErrorMessage());
//throw new ApplicationException("資格入力ダイアログから情報を取得することに失敗しました。");
}
CoTaskMemFree(outCredBuffer);
}
private static extern uint CredUIPromptForWindowsCredentials(ref PCREDUI_INFO uiInfo, int authError, ref uint authPackage
, IntPtr InAuthBuffer, uint InAuthBufferSize, out IntPtr refOutAuthBuffer, out uint refOutAuthBufferSize
, ref bool fSave, CREDUIWIN_FLAG flags);