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Godot-Clickthrough

Example implementation of a window with "transparent" properties made in the Godot Engine using C#

Using Godot 4.2.1 C# This is a basic implementation of window transparency with click-through ability using simply the viewport transparent pixels C# only, using Windows API calls (not tested for other systems)

I am currently working on a GDExtension adaptation so GDScript-only users can access to this feature more easily!

(And perhaps Linux support if I manage to)

Known issues

On newer graphic drivers, the window transparency may not work correctly: Clickthrough still functions, but the window is black and not transparent

After some tinkering I managed to find some solutions (yet not sure on why this problem occurs in the first place)

  • Change rendering method to Compatibility or
  • Disable VSync in Project Settings > Display > Window > V-Sync Mode: "Disabled", if you need a fps cap consider using Project Settings > Application > Run > Max FPS instead

godot-clickthrough's People

Contributors

kitzugg avatar

Stargazers

Everton Júnior avatar Russell Matney avatar avatar peter avatar avatar avatar avatar Charlie Burnham avatar

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sleeplessman

godot-clickthrough's Issues

Errors when mouse moves to another monitor.

Your solution is working great for me, thanks!

Just wanted to post (in case someone searches this error) that if you move the mouse to a second monitor where the application isn't, you will get errors:

I don't yet know if it will cause issues with the program working or not, but I assume not.

E 0:00:04:0735 NativeCalls.cs:5102 @ Godot.Color Godot.NativeCalls.godot_icall_2_573(nint, nint, int, int): Index p_x = -737 is out of bounds (width = 1936).
<C++ Source> core/io/image.cpp:3279 @ get_pixel()
NativeCalls.cs:5102 @ Godot.Color Godot.NativeCalls.godot_icall_2_573(nint, nint, int, int)
Image.cs:996 @ Godot.Color Godot.Image.GetPixel(int, int)
MouseDetection.cs:49 @ void MouseDetection.DetectPassthrough()
MouseDetection.cs:22 @ void MouseDetection._PhysicsProcess(double)
Node.cs:2105 @ bool Godot.Node.InvokeGodotClassMethod(Godot.NativeInterop.godot_string_name&, Godot.NativeInterop.NativeVariantPtrArgs, Godot.NativeInterop.godot_variant&)
MouseDetection_ScriptMethods.generated.cs:68 @ bool MouseDetection.InvokeGodotClassMethod(Godot.NativeInterop.godot_string_name&, Godot.NativeInterop.NativeVariantPtrArgs, Godot.NativeInterop.godot_variant&)
CSharpInstanceBridge.cs:24 @ Godot.NativeInterop.godot_bool Godot.Bridge.CSharpInstanceBridge.Call(nint, Godot.NativeInterop.godot_string_name*, Godot.NativeInterop.godot_variant**, int, Godot.NativeInterop.godot_variant_call_error*, Godot.NativeInterop.godot_variant*)

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