Std.Ui.Canvas.pixelAt
1 declaration
fn
pixelAt: &Std.Ui.Canvas.Surface -> Std.Ui.Canvas.Point -> Result[Option[Std.Ui.Canvas.Color], Std.Ui.Canvas.CanvasError]This is a callable function.
What it does
The color of one pixel, or nothing outside the surface.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- & borrows a value for this call instead of moving or copying it.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Option holds Some(value) or None when no value is available.
- Result makes success and recoverable failure part of the function's type.
