SizeF Struct
Definition
Stores an ordered pair of floating-point numbers, typically the width and height of a rectangle.
public value class SizeF : IEquatable<System::Drawing::SizeF>
[System.Runtime.InteropServices.ComVisible(true)]
[System.ComponentModel.TypeConverter(typeof(System.Drawing.SizeFConverter))]
[System.Serializable]
public struct SizeF : IEquatable<System.Drawing.SizeF>
type SizeF = struct
Public Structure SizeF
Implements IEquatable(Of SizeF)
- Inheritance
- Attributes
- Implements
Examples
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 = 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 + System::Drawing::Size( 5, 5 );
// Create a rectangleF.
RectangleF rectFToFill = 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 = gcnew SolidBrush( customColor );
array<RectangleF>^ temp0 = {rectFToFill};
e->Graphics->FillRectangles( shadowBrush, temp0 );
// Dispose of the brush.
delete shadowBrush;
}
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();
}
Private Sub AddShadow(ByVal e As PaintEventArgs)
' Create two SizeF objects.
Dim shadowSize As SizeF = Size.op_Implicit(listBox1.Size)
Dim addSize As New SizeF(10.5F, 20.8F)
' Add them together and save the result in shadowSize.
shadowSize = SizeF.op_Addition(shadowSize, addSize)
' Get the location of the ListBox and convert it to a PointF.
Dim shadowLocation As PointF = Point.op_Implicit(listBox1.Location)
' Add a Size to the Point to get a new location.
shadowLocation = PointF.op_Addition(shadowLocation, New Size(5, 5))
' Create a rectangleF.
Dim rectFToFill As New RectangleF(shadowLocation, shadowSize)
' Create a custom brush using a semi-transparent color, and
' then fill in the rectangle.
Dim customColor As Color = Color.FromArgb(50, Color.Gray)
Dim shadowBrush As SolidBrush = New SolidBrush(customColor)
e.Graphics.FillRectangles(shadowBrush, _
New RectangleF() {rectFToFill})
' Dispose of the brush.
shadowBrush.Dispose()
End Sub
Remarks
The unit for a SizeF structure depends on the PageUnit and PageScale settings for the Graphics object that is used to draw.
Constructors
SizeF(PointF) |
Initializes a new instance of the SizeF structure from the specified PointF structure. |
SizeF(Single, Single) |
Initializes a new instance of the SizeF structure from the specified dimensions. |
SizeF(SizeF) |
Initializes a new instance of the SizeF structure from the specified existing SizeF structure. |
Fields
Empty |
Gets a SizeF structure that has a Height and Width value of 0. |
Properties
Height |
Gets or sets the vertical component of this SizeF structure. |
IsEmpty |
Gets a value that indicates whether this SizeF structure has zero width and height. |
Width |
Gets or sets the horizontal component of this SizeF structure. |
Methods
Add(SizeF, SizeF) |
Adds the width and height of one SizeF structure to the width and height of another SizeF structure. |
Equals(Object) |
Tests to see whether the specified object is a SizeF structure with the same dimensions as this SizeF structure. |
Equals(SizeF) | |
GetHashCode() |
Returns a hash code for this Size structure. |
Subtract(SizeF, SizeF) |
Subtracts the width and height of one SizeF structure from the width and height of another SizeF structure. |
ToPointF() | |
ToSize() | |
ToString() |
Creates a human-readable string that represents this SizeF structure. |
Operators
Addition(SizeF, SizeF) |
Adds the width and height of one SizeF structure to the width and height of another SizeF structure. |
Division(SizeF, Single) |
Divides the specified SizeF by the specified single-precision floating-point number. |
Equality(SizeF, SizeF) |
Tests whether two SizeF structures are equal. |
Explicit(SizeF to PointF) |
Converts the specified SizeF structure to a PointF structure. |
Inequality(SizeF, SizeF) |
Tests whether two SizeF structures are different. |
Multiply(Single, SizeF) |
Multiplies the specified single-precision floating-point number by the specified SizeF. |
Multiply(SizeF, Single) |
Multiplies the specified SizeF by the specified single-precision floating-point number. |
Subtraction(SizeF, SizeF) |
Subtracts the width and height of one SizeF structure from the width and height of another SizeF structure. |