private void SetupInstance(int x = 0, int y = 0, int width = 800, int height = 600)
{
IsVisible = true;
Topmost = BypassTopmost ? true : false;
X = x;
Y = y;
Width = width;
Height = height;
randomClassName = GenerateRandomString(5, 11);
string randomMenuName = GenerateRandomString(5, 11);
string randomWindowName = string.Empty;//generateRandomString(5, 11);
switch (WindowNameGenerator)
{
case OverlayWindowNameGenerator.None:
randomWindowName = string.Empty;
break;
case OverlayWindowNameGenerator.Random:
randomWindowName = GenerateRandomString(5, 11);
break;
case OverlayWindowNameGenerator.Legit:
randomWindowName = GetLegitWindowName();
break;
case OverlayWindowNameGenerator.Executable:
randomWindowName = GetExecutableName();
break;
case OverlayWindowNameGenerator.Custom:
randomWindowName = CustomWindowName;
break;
default:
randomWindowName = string.Empty;
break;
}
// prepare method
wndProc = WindowProcedure;
RuntimeHelpers.PrepareDelegate(wndProc);
wndProcPointer = Marshal.GetFunctionPointerForDelegate(wndProc);
PInvoke.WNDCLASSEX wndClassEx = new PInvoke.WNDCLASSEX()
{
cbSize = PInvoke.WNDCLASSEX.Size(),
style = 0,
lpfnWndProc = wndProcPointer,
cbClsExtra = 0,
cbWndExtra = 0,
hInstance = IntPtr.Zero,
hIcon = IntPtr.Zero,
hCursor = IntPtr.Zero,
hbrBackground = IntPtr.Zero,
lpszMenuName = randomMenuName,
lpszClassName = randomClassName,
hIconSm = IntPtr.Zero
};
PInvoke.RegisterClassEx(ref wndClassEx);
uint exStyle;
if (BypassTopmost)
{
exStyle = 0x20 | 0x80000 | 0x80 | 0x8000000;
}
else
{
exStyle = 0x8 | 0x20 | 0x80000 | 0x80 | 0x8000000; // WS_EX_TOPMOST | WS_EX_TRANSPARENT | WS_EX_LAYERED |WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE
}
WindowHandle = PInvoke.CreateWindowEx(
exStyle, // WS_EX_TOPMOST | WS_EX_TRANSPARENT | WS_EX_LAYERED |WS_EX_TOOLWINDOW | WS_EX_NOACTIVATE
randomClassName,
randomWindowName,
0x80000000 | 0x10000000, // WS_POPUP | WS_VISIBLE
X, Y,
Width, Height,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero
);
PInvoke.SetLayeredWindowAttributes(WindowHandle, 0, 255, /*0x1 |*/ 0x2);
PInvoke.UpdateWindow(WindowHandle);
// TODO: If window is incompatible on some platforms use SetWindowLong to set the style again and UpdateWindow
// If you have changed certain window data using SetWindowLong, you must call SetWindowPos for the changes to take effect. Use the following combination for uFlags: SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED.
ExtendFrameIntoClientArea();
}