private void TextBoxControl_HandleCreated(object sender, EventArgs e)
{
if (this.adapter != null)
{
return;
}
this.adapter = new NativeWindowAdapter(this.TextBoxItem.TextBoxControl.Handle);
this.adapter.AddPostWndProcHook(new WndHookDelegate(this.WndProc));
}
private void ClearContext()
{
if (this.immSource == null)
{
return;
}
this.immSource.RemoveHook(new WndHookDelegate(this.WndProc));
ImeHelper.AssociateContext((NativeWindow)this.immSource, this.imeOldContext);
this.imeOldContext = IntPtr.Zero;
ImeHelper.ReleaseContext(this.imeDefaultWnd, this.imeContext);
this.immSource.Dispose();
this.immSource = (NativeWindowAdapter)null;
this.imeContext = IntPtr.Zero;
this.imeDefaultWnd = IntPtr.Zero;
}
private void CreateContext()
{
if (this.textBoxControl.ElementTree == null || this.textBoxControl.ElementTree.Control == null || (this.textBoxControl.IsDisposed || this.textBoxControl.ElementTree.Control.IsDisposed))
{
return;
}
if (this.immSource != null && this.immSource.Handle != this.textBoxControl.ElementTree.Control.Handle)
{
this.immSource.Dispose();
}
this.immSource = new NativeWindowAdapter(this.textBoxControl.ElementTree.Control.Handle);
if (this.immSource == null)
{
return;
}
this.imeDefaultWnd = ImeHelper.GetDefaultIMEWnd();
this.imeContext = ImeHelper.GetContext(this.imeDefaultWnd);
this.imeOldContext = ImeHelper.AssociateContext((NativeWindow)this.immSource, this.imeContext);
this.immSource.AddHook(new WndHookDelegate(this.WndProc));
ImeHelper.EnableImmComposition();
}