internal static void GetCredentialsVistaAndUp(string ServerName, string DisplayMessage, out NetworkCredential networkCredential)
{
CREDUI_INFO credui = new CREDUI_INFO();
credui.pszCaptionText = "Please enter the credentials for " + ServerName;
credui.pszMessageText = DisplayMessage;
credui.cbSize = Marshal.SizeOf(credui);
uint authPackage = 0;
IntPtr outCredBuffer = new IntPtr();
uint outCredSize;
bool save = false;
CREDUIWIN_FLAGS flags = CREDUIWIN_FLAGS.GENERIC;
int result = CredUIPromptForWindowsCredentials(ref credui,
0,
ref authPackage,
IntPtr.Zero,
0,
out outCredBuffer,
out outCredSize,
ref save,
(int)flags);
var usernameBuf = new StringBuilder(100);
var passwordBuf = new StringBuilder(100);
var domainBuf = new StringBuilder(100);
int maxUserName = 100;
int maxDomain = 100;
int maxPassword = 100;
if (result == 0)
{
if (CredUnPackAuthenticationBuffer(0, outCredBuffer, outCredSize, usernameBuf, ref maxUserName,
domainBuf, ref maxDomain, passwordBuf, ref maxPassword))
{
//TODO: ms documentation says we should call this but i can't get it to work
//SecureZeroMem(outCredBuffer, outCredSize);
//clear the memory allocated by CredUIPromptForWindowsCredentials
CoTaskMemFree(outCredBuffer);
networkCredential = new NetworkCredential()
{
UserName = usernameBuf.ToString(),
Password = passwordBuf.ToString(),
Domain = domainBuf.ToString()
};
return;
}
}
networkCredential = null;
}
private static extern int CredUIPromptForWindowsCredentials( ref CREDUI_INFO notUsedHere, int authError, ref int authPackage, IntPtr InAuthBuffer, int InAuthBufferSize, out IntPtr refOutAuthBuffer, out int refOutAuthBufferSize, [MarshalAs(UnmanagedType.Bool)] ref bool fSave, CREDUIWIN_FLAGS flags);