public static void test01()
{
//initialize the form
var _form = new Form();
Color _color = Color.Black;
_form.FormBorderStyle = FormBorderStyle.None;
_form.ShowInTaskbar = false;
_form.TopMost = true;
_form.Visible = false;
_form.Left = 0;
_form.Top = 0;
_form.Width = 1;
_form.Height = 1;
_form.Hide();
_form.Show();
_form.Opacity = 0.1;
//set popup style
int num1 = Win32Util.GetWindowLong(_form.Handle, -20);
Win32Util.SetWindowLong(_form.Handle, -20, num1 | 0x80);
Win32Util.ShowWindow(_form.Handle, 8);
Win32Util.SetWindowPos(_form.Handle, Win32Util.HWND_TOPMOST, TLX_, TLY_, width_, height_, 0x10);
}
protected override void OnSourceInitialized(EventArgs e)
{
var hwnd = new WindowInteropHelper(this).Handle;
var extendStyle = Win32Util.GetWindowLong(hwnd, -20);
var newStyle = extendStyle | 0x00000080 | 0x08000000;
Win32Util.SetWindowLong(hwnd, -20, newStyle);
Win32Util.SetWindowPos(hwnd, -1, 0, 0, 0, 0, 0x0010 | 0x0002); //TOPMOST SWP_NOACTIVATE NO_MOVE
Height = SystemParameters.MaximizedPrimaryScreenHeight - 14;
base.OnSourceInitialized(e);
}
public void BeginRender()
{
// Make sure it gets layered!
hWnd = w32.handle;
var wl = Win32Util.GetWindowLong(hWnd, Win32Util.GWL_EXSTYLE);
var ret = Win32Util.SetWindowLong(hWnd, Win32Util.GWL_EXSTYLE, wl | Win32Util.WS_EX_LAYERED);
// hook move!
noForm.LocationChanged += noForm_LocationChanged;
// Start the watcher
dobs.Dirty(noForm.DisplayRectangle);
dobs.running = true;
dobs.StartObserving();
noForm_LocationChanged(noForm.Location);
}
public static void test01()
{
Color transparencyKey = Color.FromArgb(255, 255, 0, 255);
f = new Form();
f.Text = "SPM - Surgical Precision Mousing";
f.WindowState = FormWindowState.Maximized;
f.ShowInTaskbar = false;
f.Visible = false;
f.TopMost = true;
f.FormBorderStyle = FormBorderStyle.None;
f.BackColor = transparencyKey;
f.TransparencyKey = transparencyKey;
f.Opacity = 1.0;
f.AllowTransparency = true;
f.Show();
//f.Hide();
//modify extended-window-styles: https://docs.microsoft.com/en-us/windows/desktop/winmsg/extended-window-styles
//enable klick trough: https://stackoverflow.com/questions/2798245/click-through-in-c-sharp-form
//show without focusing: https://stackoverflow.com/questions/156046/show-a-form-without-stealing-focus/156159#156159
const int WS_EX_LAYERED = 0x80000;
const int WS_EX_TRANSPARENT = 0x20;
const int SWP_NOACTIVATE = 0x0010;
int flags = Win32Util.GetWindowLong(f.Handle, -20); //get the "extended Window Styles" bitmask
Win32Util.SetWindowLong(f.Handle, -20, flags | WS_EX_LAYERED | WS_EX_TRANSPARENT);
Win32Util.ShowWindow(f.Handle, SWP_NOACTIVATE); //FIXME, does not actually show the form?
//https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.control.paint?view=netframework-4.8
//paint event is called when controll is redrawn, i need another event.
f.Paint += new PaintEventHandler(FormsTest2.paintCallback);
f.MouseMove += new MouseEventHandler(FormsTest2.mouseMoveCallback);
f.Update();
}
// https://stackoverflow.com/questions/1536141/how-to-draw-directly-on-the-windows-desktop-c/37707278#37707278
public static void makeKlicktrough(this Form @this)
{
Win32Util.SetWindowLong(@this.Handle, Win32Util.GWL_EXSTYLE, Win32Util.GetWindowLong(@this.Handle, Win32Util.GWL_EXSTYLE) | Win32Util.WS_EX_LAYERED | Win32Util.WS_EX_TRANSPARENT);
}
