Corners class

The four corners of a rendered region. Each corner is an independent Corner sub-object — the shape and radius can vary corner by corner — letting a control round one corner while notching another. Reached as <state>.Corners, CellRenderingOptions.Corners, and the slider’s <sliderState>.BackgroundCorners / BlockCorners.

With btnGo.NormalState.Corners
    .SetAll tbCurve, 12       ' all four corners 12px rounded
    .TopRight.Shape = tbNotched
End With

The three CornerShape values can mix on a single control. Setting TopLeft, TopRight, BottomLeft, and BottomRight individually gives full control over the silhouette:

With btnTab.NormalState.Corners
    .TopLeft.Shape = tbCurve     : .TopLeft.Radius = 12
    .TopRight.Shape = tbCurve    : .TopRight.Radius = 12
    .BottomLeft.Shape = tbNotched : .BottomLeft.Radius = 0
    .BottomRight.Shape = tbNotched : .BottomRight.Radius = 0
End With

A circular control is just a square one with all four corners set to tbCurve and a radius greater than or equal to half the control’s smaller dimension — that is what the Circle button in the package’s sample forms uses.

Properties
Methods
Events
Corner class

Properties

BottomLeft

The Corner sub-object that controls the bottom-left corner.

BottomRight

The Corner sub-object that controls the bottom-right corner.

TopLeft

The Corner sub-object that controls the top-left corner.

TopRight

The Corner sub-object that controls the top-right corner.

Methods

SetAll

Sets all four corners to the same shape and radius in a single call. Equivalent to assigning the same values to each of TopLeft, TopRight, BottomLeft, and BottomRight.

Syntax: object.SetAll Shape, Radius

Shape: required A member of CornerShape.
Radius: required A PixelCount giving the curve / notch / cut-out radius.

Events

OnChanged

Raised whenever any of the four corner sub-objects changes — either through a direct property set on the Corners object or through a propagated OnChanged from one of the Corner sub-objects.

Corner class

A single corner of a Corners object. Has a Shape (curve, notch, or cut-out) and a Radius (in pixels).

Radius

The corner’s radius in pixels. The interpretation depends on Shape: for tbCurve it is the radius of the quarter-circle, for tbNotched the cut depth, and for tbCutOut the depth of the carved-out region. PixelCount. Default: 0 (a sharp 90° corner regardless of Shape).

Shape

How the corner is drawn. A member of CornerShape: tbCurve (default), tbNotched, or tbCutOut.

OnChanged

Raised when either Shape or Radius is assigned. The parent Corners listens for this event and re-raises its own.