public static IntPtr WinHttpSetStatusCallback(
SafeWinHttpHandle handle,
Interop.WinHttp.WINHTTP_STATUS_CALLBACK callback,
uint notificationFlags,
IntPtr reserved)
{
return(IntPtr.Zero);
}
public static IntPtr WinHttpSetStatusCallback(
SafeWinHttpHandle handle,
Interop.WinHttp.WINHTTP_STATUS_CALLBACK callback,
uint notificationFlags,
IntPtr reserved)
{
if (handle == null)
{
throw new ArgumentNullException("handle");
}
return(IntPtr.Zero);
}
public static IntPtr WinHttpSetStatusCallback(
SafeWinHttpHandle handle,
Interop.WinHttp.WINHTTP_STATUS_CALLBACK callback,
uint notificationFlags,
IntPtr reserved)
{
if (handle == null)
{
throw new ArgumentNullException(nameof(handle));
}
var fakeHandle = (FakeSafeWinHttpHandle)handle;
fakeHandle.Callback = callback;
return(IntPtr.Zero);
}
private void SetStatusCallback(
SafeWinHttpHandle requestHandle,
Interop.WinHttp.WINHTTP_STATUS_CALLBACK callback)
{
IntPtr oldCallback = Interop.WinHttp.WinHttpSetStatusCallback(
requestHandle,
callback,
Interop.WinHttp.WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS,
IntPtr.Zero);
if (oldCallback == new IntPtr(Interop.WinHttp.WINHTTP_INVALID_STATUS_CALLBACK))
{
int lastError = Marshal.GetLastWin32Error();
if (lastError != Interop.WinHttp.ERROR_INVALID_HANDLE) // Ignore error if handle was already closed.
{
throw WinHttpException.CreateExceptionUsingError(lastError);
}
}
}
private void SetStatusCallback(
SafeWinHttpHandle requestHandle,
Interop.WinHttp.WINHTTP_STATUS_CALLBACK callback)
{
// TODO: Issue #5036. Having the status callback use WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS
// isn't strictly necessary. However, some of the notification flags are required.
// This will be addressed this as part of WinHttpHandler performance improvements.
IntPtr oldCallback = Interop.WinHttp.WinHttpSetStatusCallback(
requestHandle,
callback,
Interop.WinHttp.WINHTTP_CALLBACK_FLAG_ALL_NOTIFICATIONS,
IntPtr.Zero);
if (oldCallback == new IntPtr(Interop.WinHttp.WINHTTP_INVALID_STATUS_CALLBACK))
{
int lastError = Marshal.GetLastWin32Error();
if (lastError != Interop.WinHttp.ERROR_INVALID_HANDLE) // Ignore error if handle was already closed.
{
throw WinHttpException.CreateExceptionUsingError(lastError);
}
}
}
