TMlSkinSpeedometer

Notes

• Value is the current reading and MinValue–MaxValue the range of the dial.
• ArrowWidth sets the needle thickness and CircleThickness the thickness of the scale ring.
• Colors holds the colours of the dial, scale and needle, and FontTicks is the font of the scale numbers.

Example

From the demo MlSkin.Demo.TMlSkinSpeedometer.网络测速.v4.x (.dfm form file)

object MlSkinSpeedometer1: TMlSkinSpeedometer
  Left = 56
  Top = 34
  Width = 326
  Height = 335
  Colors.CircleProgressColor = 3181398
  Value = 0
  FontTicks.Charset = ANSI_CHARSET
  FontTicks.Color = 13411945
  FontTicks.Height = -15
  FontTicks.Style = []
  ...

Properties 7

Name	Type	Default	Description
ArrowWidth	Integer	15	Thickness of the needle in pixels.
CircleThickness	Integer	23	Thickness of the scale ring in pixels.
Colors	TSpeedometerColors	—	Colours of the gauge parts: dial background, ticks, needle and the value text.
Value	Integer	50	The current value.
FontTicks	TFont	—	Font of the scale numbers.
MaxValue	Integer	100	Highest value allowed.
MinValue	Integer	0	Lowest value allowed.

Events 1

Name	Type	Default	Description
OnChanged	TNotifyEvent	—	Fires after the state or value has changed.

Properties of TMlSkinCustomControl 5

Name	Type	Default	Description
About	TMlAboutInfo	—	A design-time property: double-clicking it in the Object Inspector opens the MLSkin about box with the component version. It has no effect at run time and is not stored in the .dfm.
Transparent	Boolean	True	Transparent background: the control skips its own fill and shows the form background (image or color) instead.
Color	TColor	clWhite	Background color of the control; ignored while Transparent is on.
AutoInvalidate	Boolean	False	Repaints automatically when the content changes. Turn it on if property changes do not show up.
EraseBackground	Boolean	False	Whether the background is erased before painting; worth toggling if the control flickers.

Events of TMlSkinCustomControl 4

Name	Type	Default	Description
OnDPIChanged	TMlDPIChangedEvent	—	Fires when the screen DPI changes, for example when the window moves to a monitor with a different scaling — a good place to re-adjust anything you draw yourself.
OnBackgroundChanging	TMlBackgroundEvent	—	Fires just before the background changes, giving you a chance to adjust what is drawn.
OnBackgroundChanged	TMlCustomDrawEvent	—	Fires after the background has been drawn, so you can paint on top of it.
OnVisibleChanged	TNotifyEvent	—	Fires when the control is shown or hidden.

Only the properties and events MLSkin adds are listed here. Standard VCL properties such as Align, Anchors, Font and OnClick are available too and behave exactly as on the stock controls.