TMlSkinCalloutPanel

Notes

• CalloutPosition puts the pointer on the top, bottom, left or right edge, and CalloutOffset slides it along that edge.
• CalloutWidth and CalloutLength are the pointer's base width and how far it sticks out.
• The panel's own background, border and corner settings work exactly as on TMlSkinPanel.

Example

From the demo MlSkin.Demo.圆角标签按钮和提示框.v3.0 (.dfm form file)

object cp1: TMlSkinCalloutPanel
  Left = 367
  Top = 199
  Width = 282
  Height = 122
  Color = 16565959
  CalloutWidth = 14
  CalloutPosition = cpLeft
  CalloutOffset = 14
  Alpha = 255
  BorderColor = 14009541
  DoubleBuffered = False
  DoubleBorder = False
  ...

Properties 13

Name	Type	Default	Description
CalloutWidth	Integer	22	Base width of the callout pointer in pixels.
CalloutLength	Integer	11	How far the pointer sticks out, in pixels.
CalloutPosition	TMlCalloutPosition	cpTop	Which edge the pointer is on: cpTop, cpLeft, cpBottom or cpRight.
CalloutOffset	Integer	0	Offset of the pointer along that edge, in pixels, so it lines up with whatever it points at.
Alpha	Byte	192	Opacity: 0 fully transparent, 255 opaque.
BorderSides	TSides	—	Which border edges are drawn — any combination of top, bottom, left and right.
BorderColor	TColor	$00D9CBBA	Border color.
Color	TColor	clWhite	Background color of the control; ignored while Transparent is on.
BackgroundFillType	TMlPngFillType	ftNormal	How the background image is laid out: ftNormal as-is, ftTile tiled, ftAutoStretch auto-stretched, ftCenter centred, ftStretch stretched to fill, ftGradient gradient.
BackgroundImage	TMlResID	—	Background image, given as a resource ID or an image file path.
BackgroundOffsetX	Integer	0	Horizontal offset of the background image in pixels.
BackgroundOffsetY	Integer	0	Vertical offset of the background image in pixels.
DoubleBorder	Boolean	True	Double border: draws a second line inside the border.

Events of TMlSkinCustomPanel 1

Name	Type	Default	Description
OnCustomDraw	TMlCustomDrawEvent	—	Custom draw event: paint your own content after the control has drawn itself.

Properties of TMlSkinCustomControl 4

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.
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.