Transparent Images

[Christopher Kurtis Koeber]

Dear All,
I know that I am asking a lot about images lately, but it is just that
new issues keep arising. My issue now has to do with transparent images.
When I display transparent images, sometimes either the previous image
displayed is now in the transparent area or sometimes even the buffer that
is on the screen. I tried to refresh the control but still no luck. Any
suggestions? Thank you in advance!
Sincerely,
Christopher Koeber

 

[Ken Tucker [MVP]]

Hi,

Dim ia As New Imaging.ImageAttributes

Dim cm As New Imaging.ColorMatrix

cm.Matrix33 = 0.5

ia.SetColorMatrix(cm)

Dim bm As New Bitmap("C:\camera.bmp")

e.Graphics.DrawImage(bm, New Rectangle(0, 0, 20, 20), 0, 0, 20, 20,
GraphicsUnit.Pixel, ia)



Ken

----------------------------

Dear All,
I know that I am asking a lot about images lately, but it is just that
new issues keep arising. My issue now has to do with transparent images.
When I display transparent images, sometimes either the previous image
displayed is now in the transparent area or sometimes even the buffer that
is on the screen. I tried to refresh the control but still no luck. Any
suggestions? Thank you in advance!
Sincerely,
Christopher Koeber

 

[Christopher Kurtis Koeber]

Thanks Ken, but what is the 'e' object? Do I have get a graphics handle from
the form and then draw my image using your code?
Christopher

 

[Ken Tucker [MVP]]

Hi,

I did the drawing in the paint event that is where the e came from.
You could just as easily use control.creategraphics to create the graphics
object to do the drawing.


Ken