Set The Transparency Key To The Form Back Colour?
Mar 20, 2011[URL]
i hav a transparent png. i need the form also to be transparent so what i did was set the transparency key to the form back colour see what happens (it is in the pic)
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EDIT :To make it clear, this is a WinForms app.
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Mar 26, 2010I am looking for a regular expression that can convert my font tags (only with size and colour attributes) into span tags with the relevant inline css. This will be done in VB.NET if that helps at all.I also need a regular expression to go the other way as well.To elaborate below is an example of the conversion I am looking for:
<font size="10">some text</font>
To then become:
<span style="font-size:10px;">some text</span>
So converting the tag and putting a "px" at the end of whatever the font size is (I don't need to change/convert the font size, just stick px at the end).The regular expression needs to cope with a font tag that only has a size attribute, only a color attribute, or both:
<font size="10">some text</font>
<font color="#000000">some text</font>
[code]....
I also need another regular expression to do the opposite conversion. So for example:
<span style="font-size:10px;">some text</span>
Will become:
<font size="10">some text</font>
As before converting the tag but this time removing the "px", I don't need to worry about changing the font size.Again this will also need to cope with the size styling, font styling, and a combination of both:
<span style="font-size:10px;">some text</span>
<span style="color:#000000;">some text</span>
[code]....
I am extracting basic HTML & text from CDATA tags in an XML file and then displaying them on a web-page.The text also appears in a rich-text editor so it can be edited/translated, and then saved back into a new XML file. The XML is then going to be read by a flash file, hence the need to use old-fashioned HTML.
The reason I want to convert this code is mainly for display purposes. In order to show the text sizes correctly and for it to work with my rich text editor they need to be converted to XHTML/inline CSS. The rich text editor will also generate XHTML/inline CSS that I need to convert 'back' to standard HTML before it is saved in the XML file.I know the temptation will be to tell me a number of different ways to set up my code to do what I want but there are so many other permutations I haven't even mentioned which have forced me down this route, so literally all I want to do is convert a string containing standard HTML to XHTML/inline CSS, and then the same but the other way round.
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Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
Dim BMP As New Drawing.Bitmap(1, 1)
Dim GFX As System.Drawing.Graphics = System.Drawing.Graphics.FromImage(BMP)
GFX.CopyFromScreen(New Drawing.Point(MousePosition.X, MousePosition.Y), _
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To start with i have just hard coded the colour i want it to detect. At present it produces an error. Parameter must be positive and < Width the error is on System.Drawing.Point(i,j). If i place the mouse over the colour then run the program it will say it has been found, but otherwise it wont find the colour. I believe i am not updating the location of the pixel or something to that effect.
Video Pixel Colour - Check Whether The Colour Chas Changed Significantly?
Apr 8, 2009So I have got a program with a timer on, a few labels displaying coordinates, and two buttons. Here is my
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It displays the color of the pixel at the coordinate typed into the text boxes.I have a video of a tennis ball which is bouncing on the spot, and the background in brown, so when the tennis ball comes into view there is a significant color change and i want it to start and stop a timer each time the colour changes significantly.So my question is, how do i get it to check whether the colour chas changed significantly?
VB Form And Picturebox Transparency?
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View 4 RepliesVS 2008 Form Transparency?
Dec 19, 2009I am working on an application which has transparent forms. By using transparency, I am smoothing the edges of the forms. I have got a bitmap which I set as background image of the form. I use red as form's transparency key. Although transparency works fine when my computers display is set to 24 bit color, when I change the setting to 32 bits, transparency doesn't work. In this case, users who have 32 bit color dept setting on their systems will not be able to use my application. When I searched the web, I found some solutions such as using bitmap.maketransparent command, or using magenta color for transparency key or using 32 bit bmp files etc. However none of them worked for me. Some forums suggest that this is a bug and there is no way to solve this problem. But if so, why some applications such as Winamp can display transparent forms although my color dept is set to 32 bit! I am sure there is a solution. I am working on VB.NET 2008 and my OS is Windows Xp Service Pack 2. Please help me about this subject.
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Jan 30, 2012I used some code i found that extends the aero glass border across the entire form... looks great... however when i add a control (like a datagridview) it doesnt look right at all because of the transparency of the form...
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View 2 Replies.Net WinForms Form OnPaint() Transparency Refresh?
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So... To get the obvious out of the way: Form.TransparencyKey is not sufficient for my needs as it's an all-or nothing transparency effect I want to get 50/50 foreground/background in some places, 0/100 in others, 100/0 in yet others etc.My initial approach is to override the OnBackgroundPaint() method, comment out the call to MyBase.OnBackgroundPaint and use the graphics object in the eventargs to draw exactly what I want to a form.This seems to work to start with - at the moment, I'm just drawing some rectangle for testing purposes so a PNG may present new difficulties but I haven't got there yet.
What I haven't been able to accomplish is updating the graphic - The first time the form is rendered, it shows perfectly as I'd expect (no border, just some rectangles floating on a desktop). If I move the windows behind the transparent window, the transparent window doesn't update/re-paintI believe that I need to be calling Me.Invalidate() to force a re-draw but am unsure when I should make the call - How do I know a window behind me has changed its' contents?
Edit: I tried putting a Me.Invalidate() inside a timer just to test how the redraw happens - it seems that it does trigger a re-draw but the re-draw opccurs OVER the existing form background - ie an area that was originally 50% opaque is now 75% opaque (50% + 50% of what was there before)So, after a couple of Invalidate()s, my form is showing as a black box - I need to clear the background of the form before re-drawing but Graphics.Clear(Color) seems to simply do a fill with the specified color - and obviously for the purposes of this question, Colors.Transparent doesn't really mean transparent - It seems to be a trick used when rendering the window to "show contents of control beneath this" which just doesn't work when we're dealing with the form itself?
Imports System.Drawing
Public Class TransparentForm
Private Timer As Timers.Timer
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Transparency/Opacity On Custom Shaped Form?
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How do I make it where my form retains its custom shape, and can have an opacity of less than 100%?
If you want something you've never had, you need to do something you've never done.
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Private Shared Sub highlight(ByVal b As Bitmap)
Dim highlightColour As Color = Color.FromKnownColor(KnownColor.MenuHighlight)
Dim whiteARGB As Long = Color.White.ToArgb
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I'm wondering if I can remove that "pink" color (set by me in the forum) from the image .I want to get a effect like the one Adobe products have for example
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Nov 12, 2010I am an intern at a company doing Drawing Tools for their program. My supervisor is currently having me just make a user control that draws a line and adds transparency over a form. (I started this internship very early, so my knowledge is very limited compared to what it should be for a standard intern)
This is what I have so far:
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
If MyBG Is Nothing Then
MyBG = New Bitmap(Me.Width, Me.Height)
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View 3 Replies