Set Resolution for Bitmap : Bitmap « 2D Graphics « VB.Net Tutorial






Set Resolution for Bitmap
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class SetResolutionBitmap
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

public class Form1
  Inherits System.Windows.Forms.Form

  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim newImage As Bitmap = Bitmap.FromFile("yourfile.jpg")
        Dim hDpi As Single = 90
        Dim vDpi As Single = 90

        newImage.SetResolution(hDpi, vDpi)
        
        e.Graphics.DrawImage(newImage, Me.ClientRectangle)
  End Sub

  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

  End Sub

End Class








17.67.Bitmap
17.67.1.Create an Bitmap and paint on itCreate an Bitmap and paint on it
17.67.2.Create Bitmap from IconCreate Bitmap from Icon
17.67.3.Set Resolution for BitmapSet Resolution for Bitmap
17.67.4.Set Pixel for BitmapSet Pixel for Bitmap
17.67.5.Make Bitmap transparent