public void InstallHook(Form window)
{
if (this.State == HookState.Uninstalled)
{
if (window != null)
{
NativeExports.SetLastError(0);
IntPtr nextWindow = NativeExports.SetClipboardViewer(window.Handle);
if (nextWindow == IntPtr.Zero)
{
var errorCode = NativeExports.GetLastError();
if (errorCode == 0)
{
OnSuccessfullHook(window.Handle, nextWindow);
}
else
{
var message = ErrorCodeHelper.GetMessage(errorCode);
throw new Exception(message);
}
}
else
{
OnSuccessfullHook(window.Handle, nextWindow);
}
}
}
}
public void RemoveHook()
{
if (this.State == HookState.Installed)
{
if (NativeExports.UnhookWindowsHookEx(this.handle))
{
this.OnSuccessfullUnhook();
}
else
{
var errorCode = NativeExports.GetLastError();
throw new Exception(ErrorCodeHelper.GetMessage(errorCode));
}
}
}
public void InstallHook(Form window)
{
if (this.State == HookState.Uninstalled)
{
this.keyboardProcessor = new KeyboardMessageEventHandler(KeyboardProc);
this.handle = NativeExports.SetWindowsHookEx(NativeConstants.WH_KEYBOARD_LL, this.keyboardProcessor, IntPtr.Zero, 0);
if (this.handle == IntPtr.Zero)
{
this.keyboardProcessor = null;
var errorCode = NativeExports.GetLastError();
throw new Exception(ErrorCodeHelper.GetMessage(errorCode));
}
else
{
this.OnStateChanged(new StateChangedEventArgs(this.State));
}
}
}
public void RemoveHook()
{
if (this.State == HookState.Installed)
{
NativeExports.SetLastError(0);
NativeExports.ChangeClipboardChain(this.clipboard.Handle, this.clipboard.NextWindow);
var errorCode = NativeExports.GetLastError();
if (errorCode == 0)
{
this.OnSuccessfullUnhook();
}
else
{
var message = ErrorCodeHelper.GetMessage(errorCode);
throw new Exception(message);
}
}
}
