I copy text to the clipboard using WordPad and then retrieve it and draw it
on a panel.

The edges of the text looks bad.

I suspect that it's the result of antialiasing and the background of the
original and panel are different colors.

Can you confirm that that could cause it?

Can you tell me a way to minimize the effect?



Thanks

What clipboard format are you using? You _should_ be copying text, not a
bitmap.

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"Academia" <academiaNOSPAM (AT) a-znet (DOT) com> wrote

DataFormats.Text to get Strng and

Dim Gr As Graphics = ...

Gr.DrawString(strng, ...

to draw it





"Bob Powell [MVP]" <bob (AT) spamkillerbobpowell (DOT) net> wrote

Try setting the Graphics TextRenderingHint

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Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
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"Academia" <academiaNOSPAM (AT) a-znet (DOT) com> wrote

I used SingleBitPerPixelGridFit and it is better.
I tried ClearTypeGridFit but that didn't help.

Is it your experience that SingleBitPerPixelGridFit gives the best looking
characters in general (big characters, small characters, different fonts,
colors...)?



Thanks for the help


"Bob Powell [MVP]" <bob (AT) spamkillerbobpowell (DOT) net> wrote

SingleBitPerPixelGidFit doesn't use any antialiasing at-all. This leads me
to the question-What are you drawing on exactly?

I suspect a black-transparent bitmap?

Post some real code because your example of dim gr as Graphics=... isn't
really telling me what's going on.

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Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

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"Academia" <academiaNOSPAM (AT) a-znet (DOT) com> wrote

I posted more code below. I tried to show only the important code to keep it
short, hope I got enough and didn't add bugs.

ModGraphics(e.Graphics) is where SingleBitPerPixelGridFit was getting set.
I've recently tried AntiAliasGridFit and that seems to work good. I want the
best rendering of all size fonts in all colors on all backgraounds. Speed is
not important.
The background color, text color and font is set by the user so I need to
optimize over all of them somehow.



Thanks for your interest


Dim Addition As Size = mGraphicsBmp.MeasureString(strng, Panel1.Font, 0,
StrngFormat).ToSize

Dim Bm As Bitmap = New Bitmap(newWidth, newHeight,
PixelFormat.Format32bppPArgb)

Dim Gr As Graphics = Graphics.FromImage(Bm)

Picture.ModifyGraphics(Gr)

Gr.DrawString(strng, Panel1.Font, Brush1, 0, 0)

Gr.Dispose()

..............

Private Sub Panel1_Paint(ByVal sender As Object, ByVal e As
System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint

Try

ModGraphics(e.Graphics)

Dim Mx As New Matrix(ScaleDisplay, 0, 0, ScaleDisplay, 0, 0)

e.Graphics.Transform = Mx

e.Graphics.DrawImage(Bm , 0, 0) )

Catch

End Try

End Sub







"Bob Powell [MVP]" <bob (AT) spamkillerbobpowell (DOT) net> wrote

Yeah, exactly, black transparent bitmap. Try either clearing the bitmap
to some other colour such as white (Gr.Clear(Color.White)) or drawing
the text directly to the image without passing by the intermediate
image- (my preferred solution) -

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
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Academia wrote:

"Bob Powell [MVP]" <bob (AT) _spamkiller_bobpowell (DOT) net> wrote

That resulted from the "New" ?

Thanks

I know this is a dumb question but I hadn't known about the black
transparent bitmap either so here goes.

The fact that it is black transparent bitmap would not be important if I
drew an image on the bitmap that filled it.

True?


Thanks


"Bob Powell [MVP]" <bob (AT) _spamkiller_bobpowell (DOT) net> wrote