Creating a bitmap programmatically

[Guest]

I want plot points on a cartesian surface with single pixels. I have been
unable to find a graphics member which draws points. (Is there one?)

I would like to create a bitmap one element wide and one element high where
the element is black and use the drawimage method. I don't want to read the
bitmap from a file. Is there a way to create this bitmap programmaticaly?

 

[Ken Tucker [MVP]]

Hi,

Use the graphics class fillellipse method with the width and height
= 1

Ken
-------------

I want plot points on a cartesian surface with single pixels. I have been
unable to find a graphics member which draws points. (Is there one?)

I would like to create a bitmap one element wide and one element high where
the element is black and use the drawimage method. I don't want to read the
bitmap from a file. Is there a way to create this bitmap programmaticaly?

 

[Guest]

Can you also use the Drawline with length = 1. Is so, which is faster?

 

[Larry Serflaten]

I want plot points on a cartesian surface with single pixels. I have been
unable to find a graphics member which draws points. (Is there one?)

See Bitmap.GetPixel Bitmap.SetPixel

I would like to create a bitmap one element wide and one element high where
the element is black and use the drawimage method. I don't want to read the
bitmap from a file. Is there a way to create this bitmap programmaticaly?

Dim Pixel As Bitmap = New Bitmap(1,1)
Dim grx As Graphics = Graphics.FromImage(Pixel)
grx.Clear(Color.Black)
grx.Dispose

I am not sure what you wanted to use the DrawImage routine for....


HTH
LFS