System resource Hog

[Daniel N]

I am using a timer to capture the screen, and verify certain criteria
through GetPixel(). The timer is set at 333 (about one third of a second).
And after running the program, it takes MASSIVE resources and slows the
computer down. Is there something I can do to prevent this? Here is the code
I am using:

I am using a program to capture the screen, and saving it in an image box;

'Capture Screen

CaptureScreen()

ScreenPictureBox.Image = oBackground

Then saving the image to a bitmap;

'Save save image to bitmap
Dim B As New Bitmap(ScreenPictureBox.Image)

I then GetPixel to determine certain procedures;

'Clock

RGB = B.GetPixel(967, 512)

str = RGB.ToString

str = str.Substring(7, str.Length - 8)

If str = "A=255, R=8, G=8, B=8" Then

ActionLabel.Text = "Clock"

End If

'Player 1

RGB = B.GetPixel(818, 123)

str = RGB.ToString

str = str.Substring(7, str.Length - 8)

If str = "A=255, R=0, G=0, B=0" Then

Label18.Text = "Player 1"

End If

.. . .