Compton + Dwm: Shadow as semi-transparent border?

Hi!
http://i.imgur.com/XQME18jl.png
I ran into this image while derping on the internet and I've been trying to get borders/shadows like in that picture for a some time. I know that this is achieved using Compton and Dwm, but I can't find a way how to do that.
You can find more images with those borders from Desktop Threads from 4chan.
Thanks!
<appwl>
-- mod edit: read the Forum Etiquette and only post thumbnails http://wiki.archlinux.org/index.php/For … s_and_Code [jwr] --

In compton:
"-c" argument for shadow.
"-e" argument for border opacity.
In "config.h" (of dwm):
"normbordercolor" and "selbordercolor" for border color.
"borderpx" for border size.

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A simple dialog with semi-transparent border (MFC)

Hi,
I have to make a image dialog with semi-transparency border in MFC.
I had web surfing all the day and found this solution in the codeproject.
http://www.codeproject.com/Articles/42032/Perfect-Semi-transparent-Shaped-Dialogs-with-Stand
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The child control will become semi-transparency as your dialog.
Do you want to show some child control on your dialog? If yes, you need the second dialog to host your child control.
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What to do, what to do...InDesign - Drop shadow adds semi-transparent box in PDF

I am having an issue when I add a drop shadow to an object. It looks fine in the InDesign file, but once I export it to PDF (high res - (low res looks fine)), around the object yes there is the shadow, but also there is a semi transparent box. I don't know how to remove that. I've been looking at the preferences but don't understand why that happens. I printed it out and the box comes out. Please Help!!! Thanks
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http://indesignsecrets.com/eliminating-the-white-box-effect.php
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Creating drop shadow on semi transparent bug

I have to put a client's logo on the bottom right of the screen. I have appliyed the keying effect on it to make the rectangle frame dissapear so that only the logo appears. However, I would need to surround it with a thin black line or shadow so that it doesn't disappear over certain backgrounds. Ho do I achieve that (the inspector doesn't provide any ''drop shadow'' effect for that clip as it would if it were a title) ?

If you have FCPX 10.0.6 or later, in the Effects browser > Stylize, you should find a Drop Shadow effect you can add to the watermark clip.

An Image JPanel, A semi-transparent JPanel, and non-opaque components

This is a more intelligent re-asking of the question I posed here: http://forum.java.sun.com/thread.jspa?threadID=579298&tstart=50.
I have a class called ImagePane, which is basically a JPanel with an image background. The code is much like the ImagePanel posted by camickr, discussed in this topic: http://forum.java.sun.com/thread.jspa?forumID=57&threadID=316074 (except mine only draws the image, it does not tile or scale it).
On top of my ImagePane, I can place another component, TransparentContainer. This again extends JPanel, only a color is specified in the constructor, and it is drawn at about 70% opacity. This component is meant to help increase the readability of text components that blend with the background image, without blocking out the background image completely.
This works very well, until I need to add a component, like, say, a non-opaque JRadioButton in a ButtonGroup. When you select a new JRadioButton at runtime, the semi-transparent JPanel fills with a combination of a completely opaque color (the one specifies to the TransparentContainer) and garbage from the non-opaque component being redrawn.
I have noticed that the UI is restored to being non-messed up if you place another application window on top of it and then move it. So apparently, one solution is to redraw the entire UI, or just the part that has the JRadioButton on it, every time the radio button is clicked. However, this seems unnecessarily complicated. It seems to me that I am missing something in my TransparentContainer's paintComponent() method. Does anyone have any ideas?
Here is my TransparentContainer code, if it will help:
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.JPanel;
public final class TransparentContainer extends JPanel
     /* Private Fields: For use only by this class.
      * These fields hold information needed by more
      * than one method of this class.
     private boolean fullTransparencyEnabled;
     private Color baseColor;
     private Color outerBorderColor;
     private Color innerBorderColor;
     private int obw;
     private int ibw;
     private int cbw;
     /* -- START OF METHODS -- */
     /* public TransparentContainer(Color color, boolean fullTrans)
      *   Initiallizes the transparent container object
      *   with 'color' as its base color.
     public TransparentContainer(Color color, boolean fullTrans)
          fullTransparencyEnabled = fullTrans;
          baseColor = color;
          Color borders[] = findBorderColors();
          outerBorderColor = borders[0];
          innerBorderColor = borders[1];
          obw = 3;
          ibw = 1;
          cbw = obw + ibw;
     /* private Color[] findBorderColors(Color base)
      *   Calculates the colors for the outer and inner
      *   borders of the object based on the base color.
     private Color[] findBorderColors()
          Color borders[] = new Color[2];
          int colorData[] = new int[9];
          colorData[0] = getBaseColor().getRed();
          colorData[1] = getBaseColor().getGreen();
          colorData[2] = getBaseColor().getBlue();
          colorData[3] = colorData[0] - 50;          // outerBorder red
          colorData[4] = colorData[1] - 45;          // outerBorder green
          colorData[5] = colorData[2] - 35;          // outerBorder blue
          colorData[6] = colorData[0] + 30;          // innerBorder red
          colorData[7] = colorData[1] + 30;          // innerBorder green
          colorData[8] = colorData[2] + 20;          // innerBorder blue
          /* Make sure the new color data is not out of bounds: */
          for (int i = 3; i < colorData.length; i++)
               if (colorData[i] > 255)
                    colorData[i] = 255;
               else if (colorData[i] < 0)
                    colorData[i] = 0;
          borders[0] = new Color(colorData[3], colorData[4], colorData[5]);
          borders[1] = new Color(colorData[6], colorData[7], colorData[8]);
          return borders;
     /* public Color getBaseColor()
      *   Returns the baseColor of this object.
     public Color getBaseColor()
          return baseColor;
     /* public Color getOuterColor()
      *   Returns the outerBorderColor of this object.
     public Color getOuterColor()
          return outerBorderColor;
     /* public Color getInnerColor()
      *   Returns the innerBorderColor of this object.
     public Color getInnerColor()
          return innerBorderColor;
     /* public boolean getFullTransEnabled()
      *   Returns whether or not this object will render
      *   with all of its transparency effects.
     public boolean getFullTransEnabled()
          return fullTransparencyEnabled;
     /* protected void paintComponent(Graphics g)
      *   Paints the component with the borders and colors
      *   that were set up in above methods.
     protected void paintComponent(Graphics g)
          Graphics2D g2d = (Graphics2D) g;
          AlphaComposite alphaComp;
          g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
          g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
          g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                                        RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
          g2d.setColor(getBaseColor());
          /* Draw the main body of the component */
          if (getFullTransEnabled())
               alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f);
               g2d.setComposite(alphaComp);
          else
               alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f);
               g2d.setComposite(alphaComp);
          g2d.fillRect(cbw, cbw, super.getWidth() - 2 * cbw, super.getHeight() - 2 * cbw);
          alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f);
          g2d.setComposite(alphaComp);
          /* Draw the inner border: */
          g2d.setColor(getInnerColor());
          g2d.fillRect(obw, obw, ibw, super.getHeight() - obw * 2); // left border
          g2d.fillRect(obw, obw, super.getWidth() - obw, ibw); // top border
          g2d.fillRect(super.getWidth() - cbw, obw, ibw, super.getHeight() - obw * 2); // right border
          g2d.fillRect(obw, super.getHeight() - cbw, super.getWidth() - obw * 2, ibw); // bottom border
          /* Draw the outer border: */
          g2d.setColor(getOuterColor());
          g2d.fillRect(0, 0, obw, super.getHeight()); // left border
          g2d.fillRect(0, 0, super.getWidth() + obw, obw); // top border
          g2d.fillRect(super.getWidth() - obw, 0, obw, super.getHeight()); // right border
          g2d.fillRect(0, super.getHeight() - obw, super.getWidth(), obw); // bottom border
          alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f);
          g2d.setComposite(alphaComp);
          g2d.dispose();
}

I added the main method to your TransparentContainer class ...
     public static void main(String[] args) {
          JFrame f = new JFrame("test transparent container");
          f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          TransparentContainer tc = new TransparentContainer(Color.RED, true);
          JLabel label = new JLabel("Hello, World!");
          tc.add(label);
          f.getContentPane().add(tc);
          f.setSize(800, 600);
          f.setVisible(true);
     }...using the code you posted the label was not shown. I modified your paintComponent(Graphics g) method and I did this (see the areas in bold):
     /* protected void paintComponent(Graphics g)
      *   Paints the component with the borders and colors
      *   that were set up in above methods.
     protected void paintComponent(Graphics g)
          // Call super so components added to this panel are visible
          super.paintComponent(g);
          Graphics2D g2d = (Graphics2D) g;
          AlphaComposite alphaComp;
          g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
          g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
          g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION,
                                        RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
          g2d.setColor(getBaseColor());
          /* Draw the main body of the component */
          if (getFullTransEnabled())
               alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f);
               g2d.setComposite(alphaComp);
          else
               alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f);
               g2d.setComposite(alphaComp);
          g2d.fillRect(cbw, cbw, super.getWidth() - 2 * cbw, super.getHeight() - 2 * cbw);
          alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.6f);
          g2d.setComposite(alphaComp);
          /* Draw the inner border: */
          g2d.setColor(getInnerColor());
          g2d.fillRect(obw, obw, ibw, super.getHeight() - obw * 2); // left border
          g2d.fillRect(obw, obw, super.getWidth() - obw, ibw); // top border
          g2d.fillRect(super.getWidth() - cbw, obw, ibw, super.getHeight() - obw * 2); // right border
          g2d.fillRect(obw, super.getHeight() - cbw, super.getWidth() - obw * 2, ibw); // bottom border
          /* Draw the outer border: */
          g2d.setColor(getOuterColor());
          g2d.fillRect(0, 0, obw, super.getHeight()); // left border
          g2d.fillRect(0, 0, super.getWidth() + obw, obw); // top border
          g2d.fillRect(super.getWidth() - obw, 0, obw, super.getHeight()); // right border
          g2d.fillRect(0, super.getHeight() - obw, super.getWidth(), obw); // bottom border
          alphaComp = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f);
          g2d.setComposite(alphaComp);
          // Do not dispose the graphics
          // g2d.dispose();
     }...seems to work fine now. Perhaps you should also add methods or additional constructors so the user can easily change the transparency level...and add some javadoc comments to your constructors ...at a first glance I did not know what fullTrans was
public TransparentContainer(Color color, boolean fullTrans)good luck!!

How to make a semi-transparent layer?

Hello everyone,
I am making my own website with Dreamwaver. I am a totally
new user and have no IT background. So could anyone here kindly
help me with my question:
In the main page I would like to use two layers with images
inserted. The second one will be a semi-transparent image which is
made in Fireworks. I would like to let this layer cover the first
one. Because it's semi-transparent, so i should still be able to
see the underlying image... I did all this, but finally in the IE
the second layer is NOT transparent at all.
I don't know where the problem is. Please, if anyone knows
the solutions or have any suggestion, let me know!
Thanks!
Inca

I'll show it to you my way:
1. Type the text and click the layer mask icon. The layer mask should be all white and have a small border. That indicates the mask ist active.
The foreground color should be black and the background color white.
2. Choose the gradient tool. Open the gradient window. Choose the first gradient, "foreground to background" = black to white.
Change the white color to gray.
3. Check the layer mask > is it active?
Apply the gradient from right to left over your text.
See the thin line in the screenshot.
4. On your layer mask appears the gradient, left starting with gray and right ending with black.
The advantage of this method is that you can change your text without modifying the gradient.
The black color on the layer mask hides the text, the gray color makes the text more or less visible and white color means full visible.
Hope it helps.
miss marple

Is there a way to create a semi-transparency with Java?

I would like to be able to create a semi transparent form and I was does anyone know how to do this?

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;
import javax.imageio.*;
import javax.swing.*;
import javax.swing.event.*;
public class CompositeTest extends JPanel {
    private BufferedImage backImage, frontImage;
    private float alpha = 1;
    public CompositeTest() throws IOException {
        backImage = ImageIO.read(new URL("http://today.java.net/jag/bio/JagHeadshot-small.jpg"));
        frontImage = ImageIO.read(new URL("http://today.java.net/jag/Image54-small.jpeg"));
    public Dimension getPreferredSize() {
        return new Dimension(backImage.getWidth(), backImage.getHeight());
    public void setAlpha(float alpha) {
        this.alpha = alpha;
        repaint();
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D) g;
        int x = (getWidth() - backImage.getWidth())/2;
        int y = (getHeight()- backImage.getHeight())/2;
        g2.drawRenderedImage(backImage, AffineTransform.getTranslateInstance(x, y));
        Composite old = g2.getComposite();
        g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
        x = (getWidth() - frontImage.getWidth())/2;
        y = (getHeight()- frontImage.getHeight())/2;
        g2.drawRenderedImage(frontImage, AffineTransform.getTranslateInstance(x, y));
        g2.setComposite(old);
    public static void main(String[] args) throws IOException {
        final CompositeTest app = new CompositeTest();
        JSlider slider = new JSlider();
        slider.addChangeListener(new ChangeListener(){
            public void stateChanged(ChangeEvent e) {
                JSlider source = (JSlider) e.getSource();
                app.setAlpha(source.getValue()/100f);
        slider.setValue(100);
        JFrame f = new JFrame("CompositeTest");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Container cp = f.getContentPane();
        cp.add(app);
        cp.add(slider, BorderLayout.SOUTH);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
}

Why do I get a colored shadow behind shadow and feather transparency areas when printing?

Hello,
I've been pulling my hair out over this and finally went to my printer to ask if they had insight as to why this is happening. I'll include his reply here but would like to hear your expert opinions too!
When laying out a file in InDesign, I do a lot of overlapping, feather and some drop shadow and always get a colored shadow behind the transparency area when printing out from a pdf. These files are being designed for print, which is what I thought InDesign was created for - as an updated alternative to Quark and Pagemaker? Here is what the printer says:
"Ive taken a look at the file in question and the issues this lady is experiencing can not be resolved in InDesign. What she needs to do is build the background image with color overlays all in Photoshop as a Layered PSD. Then flatten it and pull it in to InDesign as a Tiff. Then she can place her text over the top of it. She needs to use image masks on the color overlays - for the areas she does not what the color to violate.
What it comes down to is these fancy design effects out of InDesign and Illustrator should never be used for printing. They can be used for web design. Reason is, they cause RIP problems. Things fall off the file and transparent areas go away just to name a few. This happens all the time."
I would appreciate any other viewpoints here. Can I really NOT use the shadow and feather functions in InDesign for print? Are there any other ways to approach this problem other than what is being advised here. It is SO much easier to produce the entire file in InDesign.
Here is a link to the pdf. If someone would like to see the original indd file, I can post it somewhere.
http://displaysunlimitedinc.com/test/panel_3_text.pdf
There is a 1 inch blur drop shadow on the black and white temple image; a 1 inch feather on the black and white screened back image behind the main text box; and no drop shadow or feather on the map at top right, yet I get a colored shadow behind all 3 of these areas when I export the indd file to pdf and print that out. The fact that I get a shadow behind the map puzzles me.
Thank you very much in advance.

Horgycat,
The CMYK/RGB question is actually pretty complex, and depends to a great extent on how the final output is going to be produced.
If the files are destined for a printing press, all RGB elements must be converted to CMYK prior to printing. You have the option of doing that before placing in ID, or during export to PDF, and there are pros and cons to both methods, but if you don't know until the last minute what the print conditions will be, the convert on export path is more flexible.
Spot colors are a different matter. As far as I'm concerned, you should NEVER specify a spot color unless you are actually using spot ink on a press. A lot of inkjet and laser devices claim to be Pantone certified, but the reality is that even with expanded gamuts available using more than four inks, I'd estimate that better than half the Pantone solids are not reproducible as simulations that would satisfy me or my clients. The convert spot to process route should only be used, in my opinion, when you've designed a job properly to be printed using spot colors, and suddenly you have an output change or an added image that forces you to move to a process output. The last time I tried it, by the way, I had issues at the printer (the regular prepress guy was out of town, so I'm not sure what went wrong) and I ended up re-building the file with real process colors to get the transparency to work.
But you mentioned that you are doing exhibition panels, which implies to me that they are probably NOT going on a press -- you need to do hundreds, or sometimes even thousands, of copies to make a press cost-effective compared to digital printing. I used to work in a large-format output bureau doing just this kind of work, and we used large inkjet plotters. In this case, mixed RGB and CMYK files are less of an issue since most plotters will handle either, and depending on if they have an internal or external RIP or none at all, you may actually get better color fidelity using RGB as CMYK colors may get converted in the RIP to the RGB values that the plotter understands, and then get converted back a second time to CMYK (CMYKOG or whatever ink combination is used) internally before the ink is sprayed. Only the print provider would be in a position to tell you the correct color space for the equipment.
Which of course puts you at a bit of a disadvantage working with a client out of state who isn't supplying you with such necessary information as the correct output profiles for the job. It will be a miracle if the color is close.
A final word about looking funky on screen. Just as many spot colors can't be well simulated in CMYK, many also cannot be displayed adequately on a monitor. The ONLY way to choose spot colors is with a swatch book, and that's what the press operator will be using to verify his work. Clients need to be educated about the differences in technology and the limitations of soft proofs.

Problem with opaque object/text showing as semi-transparent?

I didn't start seeing this problem till today, but the past couple of times I've gone to create a new shape layer or text layer, it appears like it's at 50% opacity. I've checked my layer settings, and they're all at 100% fill and opacity. I can't see any reason why they'd be semi-transparent, and none of the settings I've tried have changed anything. I've even tried deleting the shapes/text, saving my document, and starting over. That worked one time, but this time it's not working.
Even applying a color overlay still results in a semi-transparent shape.
Anyone else have a similar issue and know how to fix it? I am in the middle of doing a design for a client, for print, and I really can't be dealing with this right now.

I ended up just deleting the group that was affected, saving it as a new file, and then rebuilding the new group from the new file. For some reason that worked. I am not currently have the problem, so I can't show you what was happening, but I'll definitely look at these steps if it happens again.
Thanks!
Brooke

Getting a semi-transparent graphic onto a spot plate in InDesign CS6

I'm struggling to get elements of a design onto the fifth colour plate in my InDesign file. Example is shown below. I have made a number of rough-edged strips that retain an element of semi-transparency along their edges (so that the background shows through slightly and gives a brushed/painted on effect). The client needs these elements to be on a fifth plate, Pantone 1385.
I have tried making the graphic as a greyscale psd and as a greyscale tiff with transparency included, but I can't seem to select within InDesign using the content tool and making it on the fifth plate in my ID palette.
Have done it as a CMYK psd for time being on example below just to allow me to show the client as a visual.
Can anyone help me? I have also (briefly) explored channels in Photoshop as well but can't make and headway there too. Is there a simple solution?
Many thanks for any advice.

Thanks for reply, but I think this loses me all transparency?
Make your grayscale file a transparent Monotone like this:
In ID fill the background of the image frame with black:

How to apply a semi-transparent background to a text box

Hi Framers,
The cover of my doc has a full-page .png file on a master page. I want to add the title of the manual on the body page of the cover in a text box. No problem. However, I want to apply a semi-transparent effect to the background of the text box, so the graphic behind it shows in a muted way.
I'm sure this has to do with some combination of the Tint, Fill, and Overprint settings but none of my experiments have produced anything close to the desired effect.
I did RTFM and also searched the Help and the forum. I truly hope I didn't overlook the answer---but if I did, it wasn't for lack of trying!
As always, your expertise is very much appreciated.
TIA,
Gay

Wow, I wish I had Photoshop! I use a less sophisticated image editor, which has always served quite adequately and since it supports layers, I'll try to figure out how to do what you're suggesting.
(I did try a "None" fill and the bottom image does show up, but I wanted it a bit muted, as would happen with perhaps a "half transparency" and that is apparently what I can't achieve in FM.)
If I understand correctly, I need to edit the imported graphic to make a portion of it appear semi-transparent, and then when I bring it back into FM and put my text box on top of it, it will appear the same as if I had been able to put a partial transparency in the fill of the text box...
I really, really, really hate it when I find myself thinking "Word could do this easily, why can't Frame?"
Thanks for your helpful suggestions, guys, you're great. As always!
Gay

Exporting text with a semi transparent background that can be changed in PS or PP?

I'm creating a logo with a semi transparent background that I want to place on top of photos in Photoshop and videos in Premiere.
1. I do not see a transparent option when exporting as a .tiff. Is transparent .png my only option from AI?
2. I will need different amounts of transparency for the background depending on the image or video it is being placed on. Is there a way to export this and still have control in Photoshop or Premiere of the amount of transparency to apply towards the background?
Thanks!

1. So you are suggesting to just copy from AI and paste into PS?
2. Since the logo is text and the background is a rectangular shape, I need to make sure that I can lower the opacity in PS or PP independently of the text. I will have to do a test later, I do not have the file on this computer.
Thanks.

Can anyone tell me why games are semi transparent in Pogo? I only have this problem with Firefox but not with IE9 or Chrome

When I click on a game, the game window opens and is solid, but when it's fully loaded, it becomes semi transparent and washed out. I can post a screen shot of what I'm talking about if this forum supports it.

Hi,
Please check if this happens in [https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]
Useful links:
[https://support.mozilla.com/en-US/kb/Options%20window All about Tools > Options]
[http://kb.mozillazine.org/About:config Going beyond Tools > Options - about:config]
[http://kb.mozillazine.org/About:config_entries about:config Entries]
[https://support.mozilla.com/en-US/kb/Page%20Info%20window Page Info] Tools (Alt + T) > Page Info, Right-click > View Page Info
[https://support.mozilla.com/en-US/kb/Keyboard%20shortcuts Keyboard Shortcuts]
[https://support.mozilla.com/en-US/kb/Viewing%20video%20in%20Firefox%20without%20a%20plugin Viewing Video without Plugins]
[http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder & Files]
[https://developer.mozilla.org/en/Command_Line_Options#Browser Firefox Commands]
[https://support.mozilla.com/en-US/kb/Basic%20Troubleshooting Basic Troubleshooting]
[https://support.mozilla.com/en-US/kb/common-questions-after-upgrading-firefox-36 After Upgrading]
[https://support.mozilla.com/en-US/kb/Safe%20Mode Safe Mode]
[http://kb.mozillazine.org/Problematic_extensions Problematic Extensions]
[https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes Troubleshooting Extensions and Themes]
[https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins Troubleshooting Plugins]
[http://kb.mozillazine.org/Testing_plugins Testing Plugins]

How can I capture a semi transparent window?

Hello all
I am trying to grab an image of a semi transparent window into a bitmap. I have tried using both CopyFromScreen and BitBlt using the window handle but in both cases all I get is the image from behind the window I want to catch, it's like the semi transparent
window is completely invisible to both capture methods. Is there any way I can capture the window I want?
Thanks
Rich

Here is an example. You can try it in a new form project with 1 Button and 1 PictureBox added to the form. As i said, it is just an example so, when it is run the form will be partialy transparent. Click the button and it will capture the whole screen including
your transparent form. Then it will set the forms opacity back to 1.0 so you can see that the transparent form was captured in the image.
You will need to set it up to be used in a practical way. This is just a quick test example.
Imports System.Runtime.InteropServices
Public Class Form1
Private Const CAPTUREBLT As Integer = &H40000000
Private Const SRCCOPY As Integer = &HCC0020
<DllImport("gdi32.dll", EntryPoint:="BitBlt")> _
Private Shared Function BitBlt(ByVal hdcDest As IntPtr, ByVal nXDest As Integer, ByVal nYDest As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer, ByVal hdcSrc As IntPtr, ByVal nXSrc As Integer, ByVal nYSrc As Integer, ByVal dwRop As UInteger) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
<DllImport("user32.dll", EntryPoint:="GetDC")> Private Shared Function GetDC(ByVal hWnd As System.IntPtr) As System.IntPtr
End Function
<DllImport("user32.dll", EntryPoint:="ReleaseDC")> Private Shared Function ReleaseDC(ByVal hWnd As System.IntPtr, ByVal hDC As System.IntPtr) As Integer
End Function
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'set this form so it is partialy transparen. Just to show it was captured for this example
Me.Opacity = 0.5
PictureBox1.SizeMode = PictureBoxSizeMode.Zoom
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'if the picturebox has an Image the Dispose it first
If PictureBox1.Image IsNot Nothing Then PictureBox1.Image.Dispose()
'define the rectangle area of the screen to capture (whole screen in this case)
Dim CaptureRectangle As Rectangle = Screen.PrimaryScreen.Bounds
'Assign the new image captured from the screen to the picturebox image
PictureBox1.Image = CaptureScreenImage(CaptureRectangle)
'just so you can see the image better set the form`s opacity back to 1.0
Me.Opacity = 1.0
End Sub
Private Function CaptureScreenImage(ByVal rect As Rectangle) As Bitmap
Dim scrnHdc As IntPtr = GetDC(IntPtr.Zero)
Dim bmp As New Bitmap(rect.Width, rect.Height)
Using grx As Graphics = Graphics.FromImage(bmp)
Dim grxHdc As IntPtr = grx.GetHdc()
BitBlt(grxHdc, 0, 0, rect.Width, rect.Height, scrnHdc, rect.X, rect.Y, SRCCOPY Or CAPTUREBLT)
grx.ReleaseHdc(grxHdc)
ReleaseDC(IntPtr.Zero, scrnHdc)
End Using
Return bmp
End Function
End Class
If you say it can`t be done then i`ll try it

Semi transparent drawing over the picture

Hello every one
I am drawing the arrow image over the picture , so after drawing the arrow over the picture how to make it semi transparent so that background picture also should appear .
Please see the attached vi
Attachments:
arrow1.zip ‏2436 KB

Thank you Strokes
See the below pic i need this kind of output, transparent drawing over the 2picture
Attachments:
arrow transparent.PNG ‏411 KB

Compton + Dwm: Shadow as semi-transparent border?

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