TdxFontOptions.OnChange Event
In This Article
Notifies the parent object about any font appearance change.
#Declaration
Delphi
property OnChange: TNotifyEvent read; write;
#Remarks
Warning
Do not handle the On
event of a TdxOn
event to track font setting changes and redraw visual elements accordingly.
The OnChange
event occurs every time one of the following properties changes its value outside a BeginUpdate/EndUpdate block:
- Bold
- Specifies if the bold font attribute is applied to text.
- Charset
- Specifies the selected character set of the active font typeface.
- Height
- Specifies font height, in pixels.
- Italic
- Specifies if the italic font attribute is applied to text.
- Name
- Specifies font typeface.
- Pitch
- Specifies if all characters in the current font have the same width.
- Quality
- Specifies font rendering quality level.
- Size
- Specifies size of the current font, in typographic points.
- StrikeOut
- Specifies if the strikeout font attribute is applied to text.
- Style
- Specifies the current state of all font attributes applied to text.
- Underline
- Specifies if the underline font attribute is applied to text.
The EndUpdate procedure raises the OnChange
event only once.
See Also