C# Signature:
[DllImport("wininet.dll", SetLastError=true)]
static extern bool InternetQueryOption(IntPtr hInternet, uint dwOption, char[] lpBuffer, ref int lpdwBufferLength);
VB Signature:
<DllImport("wininet.dll", SetLastError:=True)> Shared Function InternetQueryOption(ByVal hInternet As IntPtr, ByVal dwOption As UInteger, ByVal lpBuffer() As Char, ByRef lpdwBufferLength As Integer) As Boolean
End Function
User-Defined Types:
None.
Notes:
In order to set new proxy settings use InternetSetOption.
Tips & Tricks:
Please add some!
Sample Code:
Retrieve WinInet version in C#:
const int INTERNET_OPTION_VERSION = 40;
[StructLayout(LayoutKind.Sequential)]
public struct INTERNET_VERSION_INFO
{
public int dwMajorVersion;
public int dwMinorVersion;
};
// Note that I named the imported fcn "InternetQueryVersion" due to custom arg signature
[DllImport("wininet.dll", EntryPoint = "InternetQueryOption")]
private extern static bool InternetQueryVersion(int Handle, int OptionFlag, ref INTERNET_VERSION_INFO Version, ref int size);
INTERNET_VERSION_INFO Version = new INTERNET_VERSION_INFO();
int size = Marshal.SizeOf(Version);
bool r = InternetQueryVersion(0, INTERNET_OPTION_VERSION, ref Version, ref size);
Alternative Managed API:
Do you know one? Please contribute it!
