Convert Hex To ARGB
Nov 29, 2010
I have a hexadecimal value contained in a string in the format like #FF00 for red, #0FF0 for green and #00FF for blue. I remove the hash sign so it's just the hexadecimal number but after that, I'm stuck? I know there's a convert.tostring or something but I'm not sure how to use it when converting from hex to decimal.[code]How do you do the reverse of this? From Hexadecimal to Decimal so I can create the argb value of my brush colour. If there is an easier way, please say but, as far as I am aware, Visual Basic.net 2010 doesn't let you define a colour using #0FF0.
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Dec 31, 2008
I'd like to know how to convert argb to rgb
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Jan 9, 2011
Im using VBStudio 2010 Pro and I am writing to the registry the Font and Background colors so that my form load will apply the chosen colors. Can't get it to work for me though.
Am setting like this:
ColorDialog.ShowDialog()
My.Computer.Registry.SetValue("HKEY_CURRENT_USERBMSUFontColor", "FontColor",
[code].....
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Feb 11, 2010
1: Start with bitmap in picturebox colored white2: Draw a filled rectangle (50,50,100, 100) Color black - ARGB (255,0,0,0)3: Draw a filled rectangle covering black rectangle (25,25,150, 150) Color blue, with Alpha set to 100 - ARGB (100,0,0,255) -because of 100 Alpha setting the black rectangle is visible through the blue rectangleProblem : Using bitmap.GetPixel on the blue rectangle (over white background) the result is ARGB(255,155,155,255) -an Alpha value of 255. The new color loooks the same but is not transparent.Question: How to find Alpha(transparency) value of pixel
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Dec 14, 2009
Q1. is there a way to set an argb value to a Control?
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.AllowTransparency = True
Me.BackColor = Color.FromArgb(155, 255, 0, 0)
End Sub
i get error when setting BackColor "control does not support tarnsparent background colors"
Q2. is there any difference between this 2:
argb(255,0,0,127) "opacity is 1, blue is half" and
argb(127,0,0,255) "opacity is half, blue is max"
Q3. what if there are rounding off errors in the conversion to/from argb/rgb say argb(200,0,0,150) when converted to 255 opacity i get (255,0,0,117.5585938~)can i say that argb(255,0,0,118) is exactly equal to argb(200,0,0,150) or is argb(255,0,0,117) exactly equal to argb(200,0,0,150), or is there no way to exactly convert argb(200,0,0,150) to a value with alpha at 255?
Q4. is it true that there is absolutely no relation between argb and rgb, because the actual rgb value of an argb depends on the color of the element behind it?
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Feb 22, 2012
i use this code to insert argb value from picturebox to listview
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
Dim bmp As New Bitmap(Me.PictureBox3.Image)
Dim x, y, a, r, g, b As Integer
[code]....
it's code very slowly.....
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Jul 15, 2009
I was curious why this bit of code won�t detect that the ARGB value is Blue:
[Code]...
When I run the code it says that the color isn�t Blue.
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Jul 29, 2011
I'm looking to get the label to show the ARGB value of the backcolor on my current form using vb 2010.
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Jul 21, 2010
Why is it that in parts of the .Net architecture that ARGB colours are expected be as type Integer when ARGB is outside the range of Integer? (ARGB requires 32 bits of precission, but Int has 31 bits of precission).Now of course I could just do a conversion, but what freaking conversion to use??? (I'm not affluent with all the VB global methods and the sort)
I've tried things like:
Code:
Dim value As Integer = &H80000014
Dim uvalue As UInteger = CType(value, value)
''overflow others include Convert.ToUInt32 -> value was either to large or to small and a few others all offering up nonsense about overflows, when all I freakin' want is a colour that Microsoft's own engineers have done stupid things like expect Integer values in places where UInteger should be, or vice versa. How about some consistency...
Code:
Dim value As UInteger = &H80000014 ''<- not represntable as a Uinteger???
Dim uvalue As UInteger = 2147483668 ''<- same value in decimal, same exact value! and it works this says it's not representable as a UInteger?
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Jun 18, 2012
I need to create hex color to visualize wit it a number on google earth. Moreover I would like to create a small image file that depicts the color used in google earth. so I convert hex color from ARGB to brush color This is my
dim oo=new random()
Dim filecolori = New StreamWriter(dir_colori + "lista_colori.txt")
Dim b = Nothing
[Code]....
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Feb 22, 2010
See where my vb.net equivalent of a working c# assignment statement is not working?
bytes(i / 2) = Convert.ToByte(hex.Substring(i, 1), 16)
Here's the c# followed by the vb.net function.
private byte[] StringToByteArray(String hex)
{
int NumberChars = hex.Length;
byte[] bytes = new byte[NumberChars / 2];
[CODE]...
And the vb.net that is throwing the error within the for loop
Private Function StringToByteArray(ByVal hex As String) As Byte()
Dim NumberChars As Int16 = CShort(hex.Length)
[CODE]...
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Dec 8, 2009
my project was intially mandated to be done in c#.however a large contributor to the project wrote much of the business logic, which he knows well, in vb.net.How difficult would it be to convert the following c# code into vb.net.
[Code]...
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Oct 30, 2010
i wanna try to convert this ASM code into vb.net or at least find a solution that will allow me to enable this script after creating a handle on a kernel32 process.
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Apr 7, 2012
I am looking for some library or code that will allow me to convert mp4 video to mp3I want it to be for free and compatible with the latest .NET framework (4).Also, if possible, I am looking for a free ffmpeg wrapper than I can have in my vb.net application without trial or messageboxes.
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Aug 11, 2010
Will Microsoft Visual Studio 2008 convert my app to an app I can use on the Internet. I've used it to help convert up from 2005 but I'm looking so save time in creating a web app version.
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Aug 11, 2009
I developed a windows application in VS2008 as 2.0 . I would like to migrate to 3.5 . This really basic but how do I do that? It seems like I should just change a few parms somewhere, but I can't find it.
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Jul 2, 2007
I have my running application in vb 6.0, & needs to convert in C# .Net platform
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Jan 8, 2010
How do I convert a hex to an int. I know:
Dim hex as String = "FFFF"
Dim int as Integer = Val("&h" & hex)
The problem is that it only returns a signed integer, so the example above gives -1 instead of 65535. Is there a way to make Val return a Long instead f.ex. , or an other way ?
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Mar 27, 2009
as the title sayshow can i convert a bmp file to jpg file "real conversion not only changing the file file extension"or to a gif file
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Aug 3, 2011
typedef
struct {
unsigned
long
[code]....
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Jul 20, 2011
I was wondering if someone could convert the following to VB.NET.
[code]...
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Oct 7, 2009
I have some C# source code that I got off the Internet and I want it in VB.NET. How would you convert it because I don't know C#.
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Sep 10, 2009
I got this class parameters in C# and I can't convert one parameter to VB. [:(]
public static string PageLinks(this HtmlHelper html, int currentPage,
int totalPages, Func<int, string> pageUrl)
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May 6, 2010
Is there any tools that I can use to convert c++ code into vb.net code?
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Apr 12, 2009
How can i convert doc in vb(windows application form) pdf format+free pdf generator can i download n can be used in vb.net.
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Dec 12, 2010
convert below code from C# to VB
protected void Page_Load(object sender, EventArgs e)
{
Validator1.Enabled = Request[DDL1.UniqueID] == "2" ? false : true;
}
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Apr 14, 2011
I'm currently converting a VB6 app to vb.net 2010 and i'm struggling to convert the following code and was hoping that someone could assist me. Im rather new to .Net [code]...
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May 13, 2009
How to convert to jpg file to Pdf file using vb.net
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Sep 28, 2010
I have the below code that searches through directories and displays the largest file in the directory. the problem is that it displays it in KB - how on earth do I convert it to MB? The file size comes out way too large so want easier reading
Private Sub btnGetMax_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetMax.Click
ClearList()
[Code]....
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May 18, 2009
How can I convert mdf to mdb thru vb.net code? I know it can be done using Access Import but I don't want my client to open Access just to convert a database from mdf to mdb. It will be more convenient for my client to just click a button in my vb.net apps to convert mdf to mdb.
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