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SizeF Structure

Stores an ordered pair of floating-point numbers, typically the width and height of a rectangle.

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

[SerializableAttribute]
[ComVisibleAttribute(true)]
[TypeConverterAttribute(typeof(SizeFConverter))]
public struct SizeF

The SizeF type exposes the following members.

  NameDescription
Public methodSizeF(PointF)Initializes a new instance of the SizeF structure from the specified PointF structure.
Public methodSizeF(SizeF)Initializes a new instance of the SizeF structure from the specified existing SizeF structure.
Public methodSizeF(Single, Single)Initializes a new instance of the SizeF structure from the specified dimensions.
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  NameDescription
Public propertyHeightGets or sets the vertical component of this SizeF structure.
Public propertyIsEmptyGets a value that indicates whether this SizeF structure has zero width and height.
Public propertyWidthGets or sets the horizontal component of this SizeF structure.
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  NameDescription
Public methodStatic memberAddAdds the width and height of one SizeF structure to the width and height of another SizeF structure.
Public methodEqualsTests to see whether the specified object is a SizeF structure with the same dimensions as this SizeF structure. (Overrides ValueType.Equals(Object).)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns a hash code for this Size structure. (Overrides ValueType.GetHashCode().)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodStatic memberSubtractSubtracts the width and height of one SizeF structure from the width and height of another SizeF structure.
Public methodToPointFConverts a SizeF structure to a PointF structure.
Public methodToSizeConverts a SizeF structure to a Size structure.
Public methodToStringCreates a human-readable string that represents this SizeF structure. (Overrides ValueType.ToString().)
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  NameDescription
Public operatorStatic memberAdditionAdds the width and height of one SizeF structure to the width and height of another SizeF structure.
Public operatorStatic memberEqualityTests whether two SizeF structures are equal.
Public operatorStatic memberExplicit(SizeF to PointF)Converts the specified SizeF structure to a PointF structure.
Public operatorStatic memberInequalityTests whether two SizeF structures are different.
Public operatorStatic memberSubtractionSubtracts the width and height of one SizeF structure from the width and height of another SizeF structure.
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  NameDescription
Public fieldStatic memberEmptyGets a SizeF structure that has a Height and Width value of 0.
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The unit for a SizeF structure depends on the PageUnit and PageScale settings for the Graphics object that is used to draw.

The following code example adds a shadow to a ListBox by using the following members:

This example is designed to be used with a Windows Form. To run this example, paste this code into a form and call the AddShadow method when handling the form's Paint event. Verify that the form contains a ListBox named listBox1.


private void AddShadow(PaintEventArgs e)
{

    // Create two SizeF objects.
    SizeF shadowSize = listBox1.Size;
    SizeF addSize = new SizeF(10.5F, 20.8F);

    // Add them together and save the result in shadowSize.
    shadowSize = shadowSize + addSize;

    // Get the location of the ListBox and convert it to a PointF.
    PointF shadowLocation = listBox1.Location;

    // Add two points to get a new location.
    shadowLocation = shadowLocation + new Size(5, 5);

    // Create a rectangleF. 
    RectangleF rectFToFill = 
        new RectangleF(shadowLocation, shadowSize);

    // Create a custom brush using a semi-transparent color, and 
    // then fill in the rectangle.
    Color customColor = Color.FromArgb(50, Color.Gray);
    SolidBrush shadowBrush = new SolidBrush(customColor);
    e.Graphics.FillRectangles(shadowBrush, new RectangleF[]{rectFToFill});

    // Dispose of the brush.
    shadowBrush.Dispose();
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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