Spread Windows Forms 7.0 Product Documentation
TransparencyTolerance Property
See Also  Example Support Options
FarPoint.Win.Spread Assembly > FarPoint.Win.Spread.CellType Namespace > ImageCellType Class : TransparencyTolerance Property


Glossary Item Box

Gets or sets the transparency tolerance in the image.

Syntax

Visual Basic (Declaration) 
Public Property TransparencyTolerance As Integer
Visual Basic (Usage)Copy Code
Dim instance As ImageCellType
Dim value As Integer
 
instance.TransparencyTolerance = value
 
value = instance.TransparencyTolerance
C# 
public int TransparencyTolerance {get; set;}

Property Value

Integer tolerance value

Remarks

The transparency tolerance determines how close the red, green, and blue components of a color must be to the TransparencyColor to be transparent in the rendered image. For example, if the TransparencyColor is Color.White (255,255,255) and the TransparencyTolerance is 1, then the color (254,254,254) is rendered transparent.

Example

This examples illustrates the setting of this property of an image cell type.
C#Copy Code
FarPoint.Win.Spread.CellType.ImageCellType icelltype =new FarPoint.Win.Spread.CellType.ImageCellType();
icelltype.Style = FarPoint.Win.RenderStyle.Stretch;
icelltype.TransparencyColor = Color.Black;
icelltype.TransparencyTolerance = 100;
fpSpread1.Sheets[0].Rows[0].CellType =icelltype;
System.Drawing.Image image = System.Drawing.Image.FromFile("D:\\alphaomega3.jpg"); 
System.IO.MemoryStream stream = new System.IO.MemoryStream();
byte[] bytes;
string str;
image.Save(stream,System.Drawing.Imaging.ImageFormat.Jpeg);
stream.Seek(0, System.IO.SeekOrigin.Begin); 
bytes = stream.GetBuffer();
str = System.Convert.ToBase64String(bytes);
fpSpread1.Sheets[0].Cells[0,0].Value = image;
fpSpread1.Sheets[0].Cells[0,1].Value = bytes;
fpSpread1.Sheets[0].Cells[0,2].Value = str;
Visual BasicCopy Code
Dim icelltype As New FarPoint.Win.Spread.CellType.ImageCellType
icelltype.Style = FarPoint.Win.RenderStyle.Stretch
icelltype.TransparencyColor = Color.Black
icelltype.TransparencyTolerance = 100
FpSpread1.Sheets(0).Rows(0).CellType = icelltype
Dim image As System.Drawing.Image = System.Drawing.Image.FromFile("D:\alphaomega3.jpg")
Dim stream As New System.IO.MemoryStream
Dim bytes As Byte()
Dim str As String
image.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg)
stream.Seek(0, System.IO.SeekOrigin.Begin)
bytes = stream.GetBuffer()
str = System.Convert.ToBase64String(bytes)
FpSpread1.Sheets(0).Cells(0, 0).Value = image
FpSpread1.Sheets(0).Cells(0, 1).Value = bytes
FpSpread1.Sheets(0).Cells(0, 2).Value = str

Requirements

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

See Also

© 2002-2014 ComponentOne, a division of GrapeCity. All Rights Reserved.