Click here to Skip to main content
Rate this: bad
good
Please Sign up or sign in to vote.
See more: C#2.0 C#3.0 C# C#4.0 C#3.5
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 1:36am
rus204687
Edited 6-Sep-11 23:42pm
CS201119K
v3

1 solution

Rate this: bad
good
Please Sign up or sign in to vote.

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
  Permalink  
v2
Comments
rus204 at 6-Sep-11 10:03am
   
thnx, and.. how can i do that in WPF? no example?
nikhilbdamle at 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

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

  Print Answers RSS
0 Sergey Alexandrovich Kryukov 269
1 OriginalGriff 240
2 CPallini 195
3 Maciej Los 177
4 BillWoodruff 173
0 OriginalGriff 5,655
1 DamithSL 4,506
2 Maciej Los 3,997
3 Kornfeld Eliyahu Peter 3,480
4 Sergey Alexandrovich Kryukov 3,180


Advertise | Privacy | Mobile
Web04 | 2.8.141216.1 | Last Updated 7 Sep 2011
Copyright © CodeProject, 1999-2014
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100