Icon To Bitmap Removes Transparency
Oct 23, 2009
I have a system icon (for example a folder icon) and I want to display it in a richtextbox. That's not a problem, but the transparency of the icon is gone and is replaced by a blue color. I tried to use the MakeTranparent function of the bitmap object, but with no luck. How can I make the bitmap transparent again?
Here is my code:
Dim _mycurrentFolder As String = "C:Test"
Dim _folderIcon As Icon = GetSystemIcon(_mycurrentFolder)
Dim _folderBitmap As Bitmap = _folderIcon.ToBitmap()
[Code]....
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Mar 2, 2010
how can i create an icon (with transparency) from a bitmap?
i've tried this code, which i converted from a create cursor function which worked ok with transparency. i'm guessing its the IconInfo hbmMask + hbmColor properties?
#Region " CreateIconIndirect"
Private Structure IconInfo
Public fIcon As Boolean
[Code]....
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Jun 11, 2011
i need to set the transparency of a bitmap using a trackbar. how can i do this? if i change the value of the trackbar, the image's transparency will change.
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Jun 12, 2011
how can i set the transparency of a bitmap that is displayed on the picturebox, i am making a digital makeup software and i want my makeup's tints or colors be reduced or increased. this is the code of that
Public Class foundationfrm
Private SelectedFoundation As Foundation
Private MouseIsDown As Boolean
[Code].....
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Feb 3, 2011
I have created a toolbar on my form and added icons (.ico or .png) such as New, Open, Save, etc. I can't seem to find out how to make my icons transparent so I don't have the white background displayed on the icons.
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Oct 28, 2010
I need to save Bitmap object loaded from image file (.png, .jpeg, .bmp) and save it as an icon (.ico) to a separate file.
First I tried saving Bitmap object to a file with Icon ImageFormat:
using System.Drawing;
Bitmap bmp = (Bitmap)pictureBox1.Image;
bmp.Save(@"C:icon.ico", Imaging.ImageFormat.Icon);
This one fails, as the icon produced is not in a proper format and it cannot be used as an icon.
Next one was to get HIcon from Bitmap and save it to a file:
using System.Drawing;
using System.IO;
StreamWriter iconWriter = new StreamWriter(@"C:icon.ico");
[Code]....
This one does not do the job too. Although icon file is properly written, it has only 16 colors and a limited width and height.
I'd like to be able to write icons with custom width and height that would preserve colors from the original image. Is this possible to achive in .NET?
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Aug 19, 2008
How to make a bitmap to an Icon? I have an image with png extension and want to convert it to an icon.[code]...
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Mar 10, 2010
I'm trying to make a solid colored icon in Visual Basic.Right now I make a Bitmap, convert it to a Graphic in order to add color, convert it back to Bitmap, and then try to convert it to an icon.Unfortunately I cannot find any way to convert the final Bitmap to an icon. Can anyone help me with this? Alternatively does anyone have a different way to generate a solid colored icon? [code]
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Nov 27, 2009
I am searching for some code to help me take the bitmap contents of picturebox1 and convert it into an icon (*.ico) to save. I cannot for the life of me find anything to accomplish this. There are all sorts of codes that do things like convert bitmap files to icon files but nothing to change the contents of a picturebox as an icon.
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Jun 21, 2009
After scouring the forums for a code to extract icon from exe and convert to bitmap, i got that working, and the image will display on my form just fine. I want to save the image so it can be loaded again after the program is closed, but I get "Generic error in GDI+ occurred" when I attempt to save the bitmap.
Dim ExeIcon As Icon
Dim button1icon As Bitmap
ExeIcon = System.Drawing.Icon.ExtractAssociatedIcon(Filename)
button1icon = ExeIcon.ToBitmap()
Button1.BackgroundImage = button1icon
button1icon.Save("C:utton1icon.png", System.Drawing.Imaging.ImageFormat.Png)
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Feb 21, 2011
I would like to convert an Bitmap image to an icon in VB.NET but I have to use the binary data of each to somehow accomplish that. Doing research on Bitmap I found how the files are structured. I know that bitmaps have the Bitmap Filer header, Bitmap infoheader, and the colorallet. Each of these contain a certain amount of bytes, and I a have to get these from the bitmap file. The icon header and info header are similar to the bitmap. I know that there are libraries in VB.NET that do that easily, butthis is for a project for school and I am not supposed to use that. I just want to ask how
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Jul 3, 2011
I'm using Bitmap to show picture box like slideshow using Timer. For each timer interval, I've to go for new instance of Bitmap, there System memory increases to 1MB, How to resolve this, 'BG is picture box
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tic Dim img As Bitmap
img = New Bitmap(System.Drawing.Bitmap.FromFile(FileIO.FileSystem.GetFiles
[CODE]...
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Dec 15, 2010
I'm trying to use a ToolTip directly to a Bitmap Object (System.Drawing.Bitmap), aparently I can't do this because Bitmap isnt a Windows Control.
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Sep 17, 2011
how can i create a monochrome bitmap from a semi transparent bitmap in vb.net? the bmp is for a transparency mask image for an icon i'm trying to create with the CreateIconIndirect API function.
i'm using vb2008 .Net3.5, but i would prefer an answer that would also work in vb2005
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Jun 7, 2012
<HttpPost()>
Function Edit(<Bind(Prefix:="Article")> ByVal Article As FormCollection, Optional ByVal DepartementID As Integer = 0, Optional ByVal LeverancierID As Integer = 0) As ActionResult ', ByVal ReferenceSupplierID As Integer
' Dim Art As Article = ArticleService.GetArticleById(Article.ArticleID)
Dim _toUpdateArt As Article = ArticleService.GetArticleById(Article(0))
UpdateModel(_toUpdateArt, Article)
[Code]...
toUpdateArt.Departement = Nothing and _toUpdateArt.Supplier = Nothing is to remove the optional relationship.But it only works when i debug it and sometimes after several loops of the command, before the relation is actually removed and it's stored in the database.When there isn't a breakpoint on the "function", the Relationship will never be nulled.Does anyone has an explanation for this and how to fix this?
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Mar 25, 2009
I think this is an IDE problem, but may be my lack of understanding, so apologies if I am wrong.I have an SQL database, VS2005 app working fine, but if I put a foreign key constraint on the relation between 2 tables, as soon as I try to access the table it throws an exception as shown below. Exception.InnerException for details. The error is: DataMember property 'tblProduct_tblStock' cannot be found on the DataSource.If I delete the foreign key constraint it works perfectly happily. I am at a loss since the error seems to be one that I would expect at compile rather than run, and anyway does not seem to be true since the relationship is clearly there in the DataSource (otherwise I wouldn't be able to edit it to remove the constraint!) Possibly I am doing something stupid, but the exception is confusing me too much to let me see it. All I am trying to do is ensure that I can't create a stock record without the product existing, without coding a check - which I thought was a straightforward SQL approach
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Oct 17, 2011
Lets say we have this route:
routes.MapRoute(
"Library",
"Lib/{id}/{lang}",
New With {.controller = "MyLibrary", .action = "ShowItem", .id= 0, .lang = "en"}
)
[Code]...
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Apr 27, 2011
I have created a winform which is having a DataGridView control, based on some condition i am coloring few cells in red color.
' Array MismatchRecords is containing rows and column no. of each cell needs to be colored
For y = 0 To UBound(MismatchRecords)
Dim Row = CInt(Split(MismatchRecords(y), "|")(0))
[code]....
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Jun 16, 2009
i am trying to split a string up into separate lines with the following code, but for some reason it is also removing the spaces in the string.
Dim calculationText As String
calculationText = File.ReadAllText(fileName)
Dim fields() As String
fields = calculationText.Split(vbCrLf)
when i am in debugger mode, i look at fields, and every element has a line of the string but all the spaces and tabs are removed.
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Jan 8, 2010
I have a process which grabs the birthdate and from a data table and display them in a masked text box for viewing and editing However when pushing the data into the textbox any preceding zeros get removed For example 05/05/2005 would display as 55/20/05__
The masked Text box is set up as 00/00/0000 The line which assigns the code is:
MaskedTextBox.Text = Format(DataTable(0)("DOB"), "MM/dd/yyyy").ToString
To date I have tried the following:
[Code]...
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Jan 9, 2009
An have an app that downloads a web page and using regex removes a tag, but the text changes from "Macy" to ?Macy?, [code]
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Apr 5, 2011
I am creating an HTML document using HTML agility pack. I load a template file then append content to it. All of this works, but when I view the output file it has removed the closing tag from my <br/> tags to look like this <br>. What is causing this?
Dim doc As New HtmlDocument()
doc.Load(Server.MapPath("Template.htm"))
Dim title As HtmlNode = doc.DocumentNode.SelectSingleNode("//title")
[code]....
I ended up just reading in my template file as a standard string then loading the html like this
Dim TemplateHTML As String = File.ReadAllText(Server.MapPath("Template.htm"))
TemplateHTML = TemplateHTML.Insert(TemplateHTML.IndexOf("<div id=""topContent"">") + "<div id=""topContent"">".Length, _
html.ToString)
doc.LoadHtml(TemplateHTML)
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Sep 12, 2009
I've made a small program that creates a registry item in the users run key (basically starts the program on bootup), my question is does anybody know how to remove the item from all the users of the computer when the program is uninstalled?.
I know that all the other users registry hives aren't loaded at anyone time and feel a custom action dll that runs on uninstall that iterates through the 'documents and settings' folder loading the hives one at a time and removes the registry key.
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May 26, 2011
Here is a short program to demonstrate my question. I just want to extraxct a rectangle bitmap from a big bitmap.Code as follows:
Private
Sub Button3_Click(ByVal sender
As System.Object,[code]....
Execution stops when hitting the Dim cloneBitmap statement, which should have created a bitmap out of the rectangle cut out.The message is:
"MissingMemeberException was unhandled.
No default member was found for type 'bitmap"
I just don't get it. Seems that the method Clone(Rectangle, PixelFormat was not found.
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Feb 10, 2010
I have a grass image located here in my directory. I want to just create a Bitmap, but I am getting an error. (Parameter is not valid.) Immediate Window: A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll
[URL]
private void Form1_Load(object sender, EventArgs e)
{
Bitmap bmp = new Bitmap("grass.jpg");
}
bertino
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Sep 24, 2009
I am able to browse to a file and save its path in a textbox, but the slashes from path are removed when saved to the database.
C:Program FilesApplicationDocStudio.bmp
becomes
C:Program FilesApplicationDocStudio.bmp
Public Class FormSettings
Dim Result As String
[Code] .....
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Mar 28, 2010
I have a listbox were users can add items to. Then i also have a remove button which removes the selected item. The listbox also has a datasource, so to remove an item i uses this
[code]...
But i also want sorting on the listbox. But when i clicks the remove button, it removes random items, not the selected one. How can i fix this?
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Nov 19, 2010
I currently have the following code but I would like to get away from going to a physical location. If I have the icon as a resource, how can I programatically add the icon? I don't want to use the form's designer to do this.
Sub Form1_Load()
Dim ico As New System.Drawing.Icon("C:Resourcesicon.ico")
Me.Icon = ico
End Sub
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Jun 4, 2011
My application icon looks ugly-like a paper and i would like to change it to something like globe icon or any suitable image.Am programming using visual studio 2005 and the program is written in vb.net.
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Jul 28, 2009
I'm not sure exactly if the folder icon is in shell32.dll, but nonetheless if it is.Basically, whenever I come across a folder in a FileSystem list, I want to add the icon for a folder to the image list that I am using for the ListView. The problem is that I'm not sure how to reference a specific icon location in a icon collection in a dll.Is this possible with Icon.ExtractAssociatedIcon and shell32.dll?
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