private void PerformDispose()
{
if (_hHook != IntPtr.Zero)
{
// uninstall hook
UnhookWindowsHookEx(_hHook);
_hHook = IntPtr.Zero;
}
_hookCallback = null;
}
private void PerformDispose()
{
if (_hHook != IntPtr.Zero)
{
// uninstall hook
UnhookWindowsHookEx(_hHook);
_hHook = IntPtr.Zero;
}
_hookCallback = null;
}
/// <summary>
/// Initializes a new instance of <see cref="CommonDialogHook"/>. Don't forget to <see cref="Dispose"/> it!
/// </summary>
public CommonDialogHook()
{
const int WH_CALLWNDPROCRET = 12;
#pragma warning disable 618,612
// we have to use the unmanaged thread ID, and it should remain stable for the short lifetime of this hook anyway
var unmanagedThreadId = AppDomain.GetCurrentThreadId();
#pragma warning restore 618,612
_hookCallback = new CallWndRetProc(WndProcRetCallback); // must be written this way to ensure the delegate instance does not go out of scope early
_hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, _hookCallback, IntPtr.Zero, unmanagedThreadId); // install WndProcRet hook
}
/// <summary>
/// Initializes a new instance of <see cref="CommonDialogHook"/>. Don't forget to <see cref="Dispose"/> it!
/// </summary>
public CommonDialogHook()
{
const int WH_CALLWNDPROCRET = 12;
#pragma warning disable 618,612
// we have to use the unmanaged thread ID, and it should remain stable for the short lifetime of this hook anyway
var unmanagedThreadId = AppDomain.GetCurrentThreadId();
#pragma warning restore 618,612
_hookCallback = new CallWndRetProc(WndProcRetCallback); // must be written this way to ensure the delegate instance does not go out of scope early
_hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, _hookCallback, IntPtr.Zero, unmanagedThreadId); // install WndProcRet hook
}
private static extern IntPtr SetWindowsHookEx(int hookType, CallWndRetProc lpfn, IntPtr hMod, int dwThreadId);
private static extern IntPtr SetWindowsHookEx(int hookType, CallWndRetProc lpfn, IntPtr hMod, int dwThreadId);
