c# generate barcode from string Answers in Visual C#

Drawer Quick Response Code in Visual C# Answers

Correct Answers: A and B A. Correct: To draw a circle, call the Graphics.DrawEllipse method using an instance of the Graphics class. B. Correct: To call the Graphics.DrawEllipse method, you must provide an instance of the Pen class. C. Incorrect: System.Drawing.Brush is used to draw filled shapes, not empty shapes. D. Incorrect: You can create a Graphics object from System.Drawing.Bitmap; however, there are many better ways to create a Graphics class.

Correct Answer: B A. Incorrect: HatchBrush defines a rectangular brush with a hatch style, foreground color, and background color. B. Correct: LinearGradientBrush can be used to fill objects with a color that gradually fades to a second color. C. Incorrect: PathGradientBrush can be used to fill objects with a color that gradually fades to a second color; however, LinearGradientBrush is more efficient. D. Incorrect: SolidBrush fills objects with only a single color. E. Incorrect: TextureBrush is used to fill objects with an image.

Correct Answer: D A. Incorrect: The arrow points to the right. B. Incorrect: The arrow points to the right. C. Incorrect: The arrow points to the right. D. Correct: The arrow points to the right.

1. Correct Answers: A and B A. Correct: You can load a picture from a file using the Image constructor, and then call Graphics.DrawImage to display the picture in the form. B. Correct: The Bitmap class inherits from the Image class and can be used in most places where the Image class is used. C. Incorrect: You cannot use the MetaFile class to load a JPEG image.

D. Incorrect: The PictureBox class is used to display pictures in a form, but it does not include a method to load a picture from a file. 2. Correct Answer: C A. Incorrect: You cannot directly create a Graphics object from a picture saved to the disk. B. Incorrect: The Bitmap class does not have methods for drawing graphics. C. Correct: You must first create a Bitmap object, and then create a Graphics object from the Bitmap before saving it. D. Incorrect: There is no Bitmap.CreateGraphics method. Instead, you must call Graphics.FromImage to create a Graphics object. 3. Correct Answer: C A. Incorrect: You can use the BMP format to store photographs; however, the JPEG format uses much less space. B. Incorrect: The GIF format is not ideal for storing photographs. C. Correct: The JPEG format offers excellent quality and compression for photographs with almost universal application support. D. Incorrect: The PNG format is very efficient; however, it is not as universally compatible as GIF and JPEG. 4. Correct Answer: B A. Incorrect: You can use the BMP format to store charts; however, the GIF format uses much less space. B. Correct: The GIF format is ideal for storing charts. C. Incorrect: You can use the JPEG format to store charts; however, the results may not be as clear as the GIF format. D. Incorrect: The PNG format is very efficient; however, it is not as universally compatible as GIF and JPEG.

1. Correct Answer: B A. Incorrect: The string class does not have a Draw method. B. Correct: You add text by calling Graphics.DrawString, which requires a Graphics object, a Font object, and a Brush object.

C. Incorrect: Graphics.DrawString requires a Brush object, not a Pen object. D. Incorrect: The Bitmap class does not have a DrawString method. 2. Correct Answer: A A. Correct: Create an instance of the StringFormat class, and pass it to Graphics.DrawString to control the alignment of a string. B. Incorrect: StringAlignment can be used when specifying the formatting of a string; however, it is an enumeration and you cannot create an instance of it. C. Incorrect: FormatFlags can be used when specifying the formatting of a string; however, it is a property of StringFormat and you cannot create an instance of it. D. Incorrect: LineAlignment can be used when specifying the formatting of a string; however, it is a property of StringFormat and you cannot create an instance of it. 3. Correct Answer: C A. Incorrect: This statement would cause the line to be drawn at the top of the bounding rectangle. B. Incorrect: This statement would cause the line to be drawn at the bottom of the bounding rectangle. C. Correct: This statement would cause the line to be drawn at the left of the bounding rectangle. D. Incorrect: This statement would cause the line to be drawn at the right of the bounding rectangle.