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Adding GDI+ Web Controls to a Web Form in VB.NET.Graphics Web Application in GDI+ usnig VB.NET.Drawing GDI+ Images on the Web in VB.NET.GDI+ LinearGradientBrush and PathGradientBrush in VB.NET.Working with Text and Strings in VB.NET.Understanding the GDI+ Paint Event in VB.NET.Add GDI+ Paint Event Handler and Controls in VB.NET.GDi+ Scope and Type of Variable and Performance in VB.NET.GDI+ Double Buffering and Flicker-Free Drawing in VB.NET.Overriding the GDI+ OnPaint Method in VB.NET.Use Graphics Paths in GDI+ using VB.NET.Select Method carefully in GDI+ using VB.NET.Use GDI+ System Brushes and Pens in VB.NET.No GDI Calls between GetHdc and ReleaseHdc in VB.NET.Designing GUI Applications in GDI+ using VB.NET.' Set string format flag to direction vertical,ĭrawFormat.FormatFlags = StringFormatFlags.DirectionVertical LISTING 3.7: Using DrawString to draw text on a graphics surfaceĭim blueBrush As New SolidBrush(Color.Blue)ĭim redBrush As New SolidBrush(Color.Red)ĭim greenBrush As New SolidBrush(Color.Green)ĭim rect As New Rectangle(20, 20, 200, 100)ĭim DrawString As = "Hello GDI+ World!" In this example the FormatFlags property is set to StringFormatFlags.DirectionVertical, which draws a vertical text.
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Listing 3.7 shows different ways to draw text on a graphics surface.
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Using StringFormat, you can set flags, alignment, trimming, and other options for the text. Now let's see another example of drawing text- this time using the StringFormat class, which defines the text format. This method of creating objects means that we can't dispose of these objects, so some cleanup is left for the garbage collector.įigure 3.7 shows the output from Listing 3.6 Note: You might notice in Listing 3.6 that we create Font, SolidBrush, and Point objects directly as parameters of the DrawString method.
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Private Sub Form1_Paint( ByVal sender As System.Object, ByVal e As ) Handles MyBase.PaintĮ.Graphics.DrawString( "Hello GDI+ World!", New Font( "Verdana", 16), New SolidBrush(Color.Red), New Point(20, 20)) End Sub Listing 3.6 uses the DrawString method to draw "Hello GDI+ World!" on a form. Drawstring takes arguments that identify the text, font, brush, starting location, and string format. The DrawString method draws a text string on a graphics surface. This section briefly discusses the drawing of text.
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