TransparencyColor Property (Picture)

Visual Basic
C#

'Declaration
 
Public Overridable Property TransparencyColor As Color

'Usage
 
Dim instance As Picture
Dim value As Color
 
instance.TransparencyColor = value
 
value = instance.TransparencyColor

public virtual Color TransparencyColor {get; set;}

Property Value

Color object containing the color

Use this property to specify the transparency color for the picture. When you set a transparency color, the background behind the picture shows through the pictures in the area that originally had the color you specify. For example, if you specify yellow as the transparency color, areas in the picture that are yellow appear transparent, and the area behind them shows through the picture. Icon files (*.ico) do not support TransparencyColor when loaded into FarPoint.Win.Picture.

Specify the picture to display by setting the Image property.

Specify the range of values considered transparent by using the TransparencyTolerance property.

This example draws a picture in the top left of the dialog.

C#

private void DrawPicture(System.Windows.Forms.PaintEventArgs e)
{
Graphics g = e.Graphics;
FarPoint.Win.Picture p = new FarPoint.Win.Picture(Image.FromFile("d:\\earth.ico"), RenderStyle.Normal, Color.White, 50, HorizontalAlignment.Center, VerticalAlignment.Center);
g.DrawImage(p.Image, 20, 20);
Color c = p.TransparencyColor
MessageBox.Show("The color is " + c.ToString());
}

Visual Basic

Private Sub DrawPicture(ByVal e As PaintEventArgs)
Dim g As Graphics = e.Graphics
Dim p As New FarPoint.Win.Picture(Image.FromFile("d:\earth.ico"), RenderStyle.Normal, Color.White, 50, HorizontalAlignment.Center, VerticalAlignment.Center)
g.DrawImage(p.Image, 20, 20)
Dim c As Color = p.TransparencyColor
MessageBox.Show("The color is " + c.ToString())
End Sub

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8

Reference

Picture Class
Picture Members
Image Property
TransparencyTolerance Property