Can I Get Real Color After Apply Form Opacity?

Question

5.00/5 (2 votes)

See more:

I'm Drawing Rectangle using `Grahpics` Class(GDI+).
And I have set the form's opacity to 30%.

this is my code.

Graphics gr = e.Graphics;
Pen pen = new Pen(new SolidBrush(Color.FromArgb(255,Color.Red)),1);
gr.Clear(this.BackColor);
gr.DrawRectangle(pen, rect);

but.. Pen Opacity is 30% too!

I'm so want the original color.

how can i do?

Posted 6-Sep-11 0:36am

rus204

Updated 6-Sep-11 22:42pm

CS2011

v3

Add a Solution

1 solution

Add a Solution

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

fdsdffdfsd · Answer 1 · 2011-09-06T00:50:00

Solution 1

It's not possible with windows forms. A partially transparent form cannot have opaque controls (or drawings). You could use two form approach, one fully transparent with opaque controls over another partially transparent form. You can also use windows transparency key of opaque form to hide unwanted area Or Use simply use WPF. Hope this helps

Posted 6-Sep-11 0:50am

fdsdffdfsd

Updated 6-Sep-11 0:55am

v2

Comments

rus204 6-Sep-11 10:03am

thnx, and.. how can i do that in WPF? no example?

[no name] 10-Sep-11 4:27am

Check the below link.
http://stackoverflow.com/questions/1541837/how-do-i-make-my-form-transparent-but-what-i-draw-on-it-not

Can I Get Real Color After Apply Form Opacity?

1 solution

Solution 1

Add your solution here

Preview 0

Can I Get Real Color After Apply Form Opacity?

1 solution

Solution 1

Add your solution here

Preview 0

Existing Members

...or Join us