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Graphics.DrawRectangles Method (Pen, Rectangle[])

Draws a series of rectangles specified by Rectangle structures.

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

public void DrawRectangles(
	Pen pen,
	Rectangle[] rects


Type: System.Drawing.Pen

Pen that determines the color, width, and style of the outlines of the rectangles.

Type: System.Drawing.Rectangle[]

Array of Rectangle structures that represent the rectangles to draw.


pen is null.


rects is null.


rects is a zero-length array.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates an array of three rectangles.

  • Draws the rectangles to the screen.

public void DrawRectanglesRectangle(PaintEventArgs e)

    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);

    // Create array of rectangles.
    Rectangle[] rects =
                 new Rectangle( 0,   0, 100, 200),
                 new Rectangle(100, 200, 250,  50),
                 new Rectangle(300,   0,  50, 100)

    // Draw rectangles to screen.
    e.Graphics.DrawRectangles(blackPen, rects);

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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