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]....
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]....
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.
View 1 Replieshow 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].....
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.
View 2 Replieshow 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
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?
How to make a bitmap to an Icon? I have an image with png extension and want to convert it to an icon.[code]...
View 5 RepliesI'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]
View 3 RepliesI 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.
View 2 RepliesAfter 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)
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
View 1 RepliesI've been trying to figure out how to create transparency in a sprite, i.e. with the use of a mask. Problem is, every tutorial I could find was either completely irrelevant or for freaking Visual Basic 1858.
View 1 RepliesThis is my first attemt to create a new custom controll that I'll be spawning in runtime. I have written rendering onto a control before but this is the first time I made a real user control.
The problem at the moment is that when I set the backcolor of my custom control to transparent it doesn't take over the backcolor of the main form. Instead it just renders it solid black. Any idea why this might be?(I render everything in the onpaint method if you wonder)
I tried setting the ControlStyles.SupportsTransparentBackColor but that doesnt work for forms only for control derived types.
[Code]...
I use a lot of picture box, label, and custom controls, all of which are oddly-shaped, and must overlap. In almost all cases, the backgrounds are not solid colored.I am using transparent .png images for the background images of many of these controls (except labels), and using transparent as the backcolor, creating a custom shaped control. However, when these controls overlap, the one towards the front will not show any controls behind it through the "transparent" background. This is getting annoying, because I cannot use any alternate object arrangements.How do I create true custom-shaped forms?
P.S. Some of my controls have extremely irregular shapes, so using simple line and curve drawing functions is probably not an option.
I'm using the following code to create a bitmap from a webbrowsercontrol that is located just off-screen (not visible to user, but control is "visible") Does the CopyFromScreen method work for something that is not ACTUALLY displayed on the screen?
I checked the values of p.X and p.Y at runtime and they are correct, but my "img" does not reflect the portion of the "Screen" i'm trying to capture.
Not sure what I'm doing wrong here, or if CopyFromScreen will still work if my control is outside of the bounds of the primaryscreen.
vb.net
'This is set at FormShown time
'Position the browser off-screen
Dim wbPoint As New Point(Me.Location.X + Me.Width - 50, Me.Location.Y)
[Code].....
Dim Image1 As New Bitmap(Application.StartupPath + "ResourcesPic1.png")
But I get an error.... It says invalid argument.
I want to create a bitmap from an image called Pic1.png found in the Resources folder of my application.
I'm trying to create an image for printing and I know what the dimensions of the image (Bitmap object) is supposed to be in Inches but the Bitmap uses pixels so how would I define it's size to the number of pixels per inch?I do know what the printer's DPI is too, I'm able to get the horizontal DPI and the vertical DPI (which is 99.99% of the time always the same)
View 8 RepliesI've been reading a bunch of tutorials on Drawing in VB.Net, and still am reading them, but I have a question which I know I'll need to ask sooner or later:
How can I create a 4000x4000 size bitmap, and then draw a pixel at a certain coordinate on a bitmap? Like say I want to draw a BLUE pixel at coordinate X = 3000 Y = 3450. How could I do that?
I want to know how I could create a bitmap from scratch with no images to start with.(I would say need. but than you would think this was for some sort of school project and it's not.)Basically, what I have is an image which is perfectly square in shape and has a black border with a black x going through it, what is not black is white. What I'm looking to know is how to take that small image (50x50 pixels) and make an image based upon those by placing them in X Rows of X amount. I'll make a couple example to show what I mean.(X's represent the 50x50 image.
[Code]...
When I create a new bitmap the file is black. How do I make it white?
View 2 RepliesI need to create high quality icons for my current project in vb.net
This is my code so far,
Private Sub CreateIcon(ByVal bitmapName As String)
Try
Dim fi As New System.IO.FileInfo(bitmapName)
[Code].....
But the problem is it only gives me a very low quality icon at the end. how to make a higher quality image?
is it possible to create a CachedBitmap from a System.Drawing.Bitmap within Visual Basic 2005 by using APIs ?
View 1 RepliesI am trying to convert from a text file to an image(bitmap) file.
For example, test.txt: 01 23 34 56 78 90
[Code]....
The first step will be reading the data, so I created some VB codes:
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.Filter = "Text Files (*.txt)|*.txt"
openFileDialog1.Title = "Select a text File"
' Show the Dialog.
' If the user clicked OK in the dialog and ' an image file was selected, open it.
If openFileDialog1.ShowDialog() = DialogResult.OK Then
' Open file.
[Code]...
The second step will be converting the data to some data format which can be used in a bitmap image. This part is making me confused. Some codes I made is listed below:
[Code]....
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]...
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.
View 1 RepliesI am trying to create bitmap with my text and transformation. I am sure that there is no error in my code. Because this code is worked previously. Here is my code.
[Code]...
how can i create a icon from my app and place it in a set folder? i searched the internet, and now i know how to convert images to icons using a simple vb form and and one button, but i still can't figure out how to create a icon from my app. ;o) trujadeso much work to do and so many choices to choose from...
View 13 RepliesHow to create an icon file? Is there anybody could give me an idea on how to create an icon for my vb.net application? How do I change or create a new icon for a vb.net application. If I have a chosen saved images and want to use it as an icon on my application, how possible is it? How do I make it? I'm using vb 2008 express edition.
View 2 RepliesI have a Icon(.ico file) in the (VB.NET)MyProject>Resources.resx file.How do I extract it in run-time as a Icon object?
View 2 Replies
