RichEditControl.CustomDrawActiveView Event
Occurs before the active RichEdit view is displayed, and enables you to draw graphics on the document area.
Namespace: DevExpress.XtraRichEdit
Assembly: DevExpress.XtraRichEdit.v24.1.dll
NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.RichEdit, DevExpress.Win.TreeMap
#Declaration
public event RichEditViewCustomDrawEventHandler CustomDrawActiveView
#Event Data
The CustomDrawActiveView event's data class is RichEditViewCustomDrawEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
Cache | Gets an object specifying the storage for the most used pens, fonts and brushes. |
#Remarks
Event handler gets access to the RichEditViewCustomDrawEventArgs object which contains graphic resources.
The following code snippet handles the RichEditControl.CustomDrawActiveView
event to draw the text “READ ONLY” on the surface of the RichEditControl view.
private void richEditControl_CustomDrawActiveView(object sender, RichEditViewCustomDrawEventArgs e)
{
using (StringFormat sf = new StringFormat())
{
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
using (Font font = new Font(Font.FontFamily, 45, FontStyle.Bold))
{
Font myFont = e.Cache.GetFont(font, FontStyle.Bold);
Brush myBrush = e.Cache.GetSolidBrush(Color.FromArgb(120, Color.Red));
Rectangle r = new Rectangle(500, 0, 800, 600);
e.Cache.DrawVString("READ ONLY", myFont, myBrush, r, sf, -45);
}
}