Convert An Image To Black And White Before Displaying It In A PictureBox?

Jun 20, 2009

Is there a way to convert an Image to Black and white before displaying it in a PictureBox? Or is there a way to make a PictureBox display color images in black and white?

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Convert A Black And White Image In JPEG Format To A Grayscale TIFF Format?

Jun 5, 2011

Im looking for a class or code in VB.NET that can convert a black and white image in JPEG format to a grayscale TIFF format.

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Black And White Image Conversion?

Mar 20, 2011

i need a windows program (on visual basic express) to convert a list of images to black and white. then to send it to a microcontroller via ethernet. i dont know anything about vb at the moment so simple explanations and code would be great. in the meantime i will try learning vb. but i need this program quick.

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Convert A Portion Of Form That You See Only Blue , Black And White?

Jun 5, 2012

He wanted to know how they can do to convert a portion of the form that you see only blue or black and white. I mean, the user presses a button and all that is in the form sees only blue or black and white only.

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Flickering - Double Buffered Picturebox - Not Double Buffere - Black Screen With The White Lines

Nov 17, 2010

I have a htpc project that I am working on. The main program loads dll plugins which are basically other win forms. On each of these forms, including the main program, I use a picturebox (a double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I load the form from the dll and show it, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker? Or am I going in the wrong direction?

Here's a couple of videos of the problem:
[url]
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Notice the black screen with the white lines on it or the flash of the desktop after I click "Movies." How do I get rid of that?

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Fade To Black And White?

Apr 20, 2006

In XP when you go to shut down, windows fades to black and white. I think that's a nice effect.How would i go about fading a color image (image box stretched - like a screen saver) to black and white...?

Has this ever been done? Is their a code snippet that already exsists?

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Change Everything On Screen Thats Black To White?

Jan 13, 2010

Change everything on screen thats black to white and vice versa??

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How To Force Black And White Printing

Mar 27, 2012

I have a color printer but I would like to force it to print in black and white (monochrome).I tried to use PageSettings.Color = false but it doesn't work.I tried to make my code as simple as possible and put PageSettings.Color = false at various places but it still doesn't work.[code]

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Forms :: Get The Selected Row To Paint In White Not Black?

Mar 17, 2012

I'm attempting to redraw the DisplayMember to red if certain criteria are met So far I have (using a dynamic form, and a dynamic panel)

Dim RevenueNominalLB As New ListBox
With RevenueNominalLB
.Name = "RevenueNominalLB"

[code]....

1. The DisplayMember is showing as 'System.Data.DataRowView'

2. Can't find a way to get the selected row to paint in white not black

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Windows Form Print Black & White?

Aug 20, 2010

I been playing around with some code I found on internet and I am probably almost where I need to be. Using the printdocument I am able to get the active form in my project to print. That works fine. MY nextr issue was to get the form to print so that it is Black & white. No shading etc.. So I found a routine on internet that will take image and turn to B&W. Problem: IF a text box fields background color is too dark then the entire box shows up in black. If a text box field data is Selected it also is too dark and comes out white.her is code I found for turnign to B&W

Public Function PureBW(ByVal image As System.Drawing.Bitmap, Optional ByVal Mode As BWMode = BWMode.By_Lightness, Optional ByVal tolerance As Single = 0) As System.Drawing.Bitmap
Dim x As Integer

[code].....

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Change Everything On Screen Thats Black To White And Vice Versa?

Jun 19, 2009

Change everything on screen thats black to white and vice versa?

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Cursors (.cur) Only Render In Black And White - How To Make Them Color

Jun 5, 2009

I am using the cursor converter to set both

dim cCon as cursorconverter = new cursorconverter
me.cursor = cursorconverter.ConvertFrom(myCursor.cur)

and

windows.forms.cursor.current = cursorconverter.ConvertFrom(myCursor.cur)

the reason for setting both is that otherwise the cursor will not always have the desired appearance.  I know that cursors can be rendered in color, like 3D-Bronze, windows animated, hands and variations. 

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Print In Black & White Wict Crystal Reports?

Jun 24, 2010

I use crystal reports, vb visual studio 2008 to print my reports. I read an Image from SQL (which is a barcode) and I want to print this bar code in Black & white. Below is the code to print my report. What I want to have in my code is ..."If the default printer is a color printer then use black & white".

[Code]...

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CheckBox Control Draw That Black Check Mark In White Box?

May 19, 2010

How does the CheckBox control draw that black check mark in the white box? I can't install .Net Reflector or anything here on my work machine so could someone post the code (vb.net or c# is fine with me)?

Or if anyone knows how to do it (I have an 8x8 Bitmap object I'm drawing on already) I'd like a hand since my math isn't working out correctly[code]...

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Displaying Image In Picturebox

Mar 6, 2012

need help in displaying image in picturebox in form load..im using vb 2008 and adodb

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Correctly Displaying Image In PictureBox?

Jun 12, 2009

I am using a PictureBox to display images. I have SizeMode set to StretchImage. While this does indeed show the whole image, it is of coure stretched. Is there a way to prepare the image to be displayed so it will fit correctly in the PictureBox? I just want it displayed without distortion and within the box.

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Displaying BLOB Image Into PictureBox?

Oct 14, 2009

I have the following code below. I am reading a BLOB image from database, but when I try to display it in the picture box I am getting the 'Parameter is

Code:
Imports System.Drawing
Imports System.Drawing.Imaging

[code].....

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Displaying Image From WebBrowser Onto PictureBox?

Aug 13, 2010

I'm trying to do this :[URL]But using VB.Net instead of VB6.I run into a problem with WebBrowser1.Document.Body.createcontrolrange()

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Displaying Image In PictureBox And Description In RichTextBox

Jul 25, 2010

The new issue is that the knife item gets added to the listbox, but when I click on it...the picture isn't displayed in the picture box, and the description isn't displayed in the rich text box. I have the image path and name correct. I have no idea why the description isn't going in the text box.

Code:
Public Class FormInventory
Private Sub FormInventory_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'' this is all the code for the inventory knife.
If KnifeTaken = True Then
[Code] .....

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Codings For Displaying Image In Picturebox Using Access Database

Mar 24, 2010

i am working a "image processing system" project in vb.net using the ms access2007.i have to browse by clicking a button and open a image to display its name to a text box and that image to picturebox.and after that i want to add,del and extract those images to the access database.i want to use datagridview control also.

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VS 2008 - Displaying Image In ByteArray To PictureBox On Form

Sep 4, 2010

In my project I am using a camera to capture images. The images will be stored in a byte array. Now I want to display my images in byte array to picture box on my form. I am pasting the code bit below.

HTML
Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory"
(ByRef Destination As Byte, ByRef Source As Byte, ByVal Length As Integer)
Delegate Sub MyFrameHookerDelegate(ByVal FrameType As Integer,
ByVal row As Integer, ByVal Column As Integer,
ByRef lpImageAttribute As TIMAGEATTACHDATA, ByRef Buffer As Byte)
Public ImageBuf() As Byte
[Code] ....

I want to display the image from ImageBuf() to a picture box on my form.

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Convert Picturebox Image To Alpha-blending?

Apr 12, 2010

I am working on a project that I wish to convert the picturebox image to acting as glass effect. What I mean that I would be able to see any controls behind the picturebox control. Something would be like this:[URL]..

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Convert Textbox's Text (containing Different Characters Of Different Font & Color ) Into Image Or Picturebox?

Dec 13, 2011

I am doing project in vb.netI am using a Rich text box on which i can set different ont(name,size,bold,italic,underline),color to different selected text.I am able to do this in Rich textbox but i want to create bitmap (or assign to picturebox) of this of different text with different font style & color but i am getting not much font as like textbox in image..

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Labels And Picturebox Controls Are Black When The Form Moves?

Jun 30, 2011

When my main form loads it also shows two other forms and has them scroll down from the upper right corner of the screen.

Here's the code for one of them:

Me.Visible = True
Dim x As Integer
Dim y As Integer

[Code].....

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VS 2008 Count The Number Of Say Black Pixels In Picturebox?

Jul 12, 2010

is there anyway i could count the number of say Black pixels in my picturebox say i have a picture in it that has 1 black pxiel i would like to to but that to a string so i could put it in a textbox or a msgbox like this

so in RGB black would be 0-0-0 but how would i have it scan the pixtuebox and count how many pixels show up with the rgb color 0-0-0

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How To Add White Space Around Image

Aug 24, 2009

How can I add white space around the image?.

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Asp.net - After Resizing White Image Gets Gray Border?

Jul 25, 2011

i was searching google for some kind solution and i found one, i tried to implement it in my code but it doesn't work. The problem is that after resizing white images they gets gray border.Here is the link of soloution i found:It says:

This problem is occuring because you are interpolating your image data to a new size, but along the edges there are no pixels to interpolate and .NET uses black pixels for these edges by default. To fix this you need to use an ImageAttributes class in your DrawImage call....

https:[url].....

CODE 1: And this is my code WITH IMPLEMENTATION OF ImageAttributes:

Private Shared Function ResizeImageFile(ByVal imageFile As Byte(), ByVal targetSize As Integer) As Byte()

Using oldImage As System.Drawing.Image = System.Drawing.Image.FromStream(New MemoryStream(imageFile))

Dim newSize As Size = CalculateDimensions(oldImage.Size, targetSize)[code].......

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Upload And Resize Image Causes White Lines

Mar 13, 2011

When uploading images SOMETIMES I get the following lines going along the left handside of the image, and along the top, going the full width and height of the image.I'm simply uploading the image and drawing as a Bitmap and using the Graphics Class to save down.[code]

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Set Pixel - Image Black

Apr 2, 2011

I am trying to make everything in my image black that is not white. I am having a little trouble doing so though.

[Code]...

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Create An Image Dot.png That Is Circle Filled With White Color

Feb 8, 2012

I want to create an image dot.png that is circle filled with white color.I used followin

Dim bmp As Bitmap = New Bitmap(64, 64)
Dim g As Graphics = Graphics.FromImage(bmp)
g.FillEllipse(Brushes.White, 8, 8, 48, 48)
bmp.Save("d:dot.png")

I would like to obtain following image:

[Code]...

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Why Image Icon Appear Blank / White In Upload Folder

Dec 30, 2011

I use vb.net. I am trying to do a file upload, I want the image to save to image folder, however, the image don't know appear in the directory that I indicate. If I click on "show all file", the image appear, but the image icon is blank or white like the image below show. So I click on that image and click on "include it in the project", however, it shouldn't be the case that I everytime upload an image, I need to redo that again. So how should I allow don't appear the white icon and to always appear in the upload folder when I upload a image instead of manually click on the image to include in?

This is my code
Protected Sub uploadImage()
Dim filename As String = FileUploadImg.FileName
Dim fileType As String = filename.Substring(filename.Length - 4).ToLower()
If (fileType = ".gif") Or (fileType = ".jpg") Or (fileType = ".png") Then
[Code] .....

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Why Is Image Icon White/blank When Fileupload Save

Jan 15, 2012

i trying to do a file upload, i want to image to save to image folder, however, the image don't know appear in the directory that i indicate if i click on "show all file", the image appear, but the image icon is blank or white like the image below show so i click on that image and click on "include it in the project" , however, it shouldnt be the case that i everytime upload an image, i need to redo that again so how should i allow don't appear the white icon and to always appear in the upload folder when i upload a image instead of manually click on the image to include in ?is it visual studio problem? does i need to click on something to make the white icon disappear?

this is my code

Protected Sub uploadImage()
Dim filename As String = FileUploadImg.FileName
Dim fileType As String = filename.Substring(filename.Length - 4).ToLower()

[code].....

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Interface And Graphics :: Getting A Black Jpeg Image?

Nov 16, 2010

What am i doing wrong on this code? im trying to get my form into a jpeg picture, but everytime it only saves a black screen of what im doing

Code:
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 _

[Code].....

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Draw Rectangle On Image Where Color Pixel Is Black?

Mar 17, 2011

I want to draw a rectangle on image where color pixel of image is black

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.net - GDI+ Image Conversion From Metafile To JPEG/GIF Results In Black Background?

Jul 8, 2009

So i am converting a metafile (EMF to be exact) to a jpeg or gif (doesn't matter as long as it's compatible with browsers) and when I do the conversion, all of the transparent pixels turn black. I have no idea how to do this in GDI+ but here is the method I am using to save the file:

Dim Img As System.Drawing.Imaging.Metafile = New System.Drawing.Imaging.Metafile(stream)
Img.Save(Server.MapPath("/FileName.gif"), System.Drawing.Imaging.ImageFormat.Gif)

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Winforms - Create Image With Width And Height 64 And Set All Pixels To Black?

Jun 21, 2012

i want to create image with width and height 64 and set all pixels to black

dim b as bitmap
b.width = 64
b.height = 64

[code]....

the code not working

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Remove/detect Only White Spaces In A Textbox, Such That "all White Space Equal Null"

Mar 22, 2011

must stop the user from proceeding if the textbox is null,if the textbox has only spaces in it.i tried . trim but that doesnot work, still spaces are excapted as valid characters.

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Drew An Image In A Picturebox With The Image Height As Picturebox Height And Image Width As Picturebox Width

Aug 15, 2011

I drew an image in a picturebox with the image height as picturebox height and image width as picturebox width. The image is placed somewhere on the center of the picturebox. My intention is to scale the image to fit to the picturebox.

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Displaying Image In Report, But If Textbox Is Empty Repeats Last Image?

Sep 5, 2010

I have a report that i'd like to display an Image for each record. But not all records have an image. The problem I have is that the last image is then repeated in the next record.

I would like to know how to have any empty field display a default image.

Code I have in report

Private Sub Detail_Format(Cancel As Integer, FormatCount As Integer)
Me.Image21.Properties("Picture") = Me.PhotoLink
End Sub

Photolink is a textfield and Image21 is an Image.

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Drag Image From Picturebox To A Dynamically Created Picturebox?

Sep 27, 2009

I have a program I'm working on that, for one of the features, allows the user to drag an image from a picturebox, into the main form space, anywhere they want. [code]...

When trying to drag the image from the CurrentTilePicBox, the very moment I move the mouse while dragging the cursor becomes a circle with a cross and won't drag and drop into the new picturebox.

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VS 2008 Add Picturebox During Runtime And Loading Image Into Picturebox?

Feb 8, 2010

i'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.

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Half Of Picturebox Displaying Over Another One

Oct 18, 2011

I have two pictureboxes with images in them inside a panel. The two pictureboxes have the background color transparent. One half of one of the picturebox is over the other and that half gets the panel backgroundcolor. How can I make the pictureboxes to not get that behavior.

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Displaying Many Pics In Single PictureBox?

Aug 1, 2010

I have used a single picture box and I want it to display many pictures when I run it, whereby I cant navigate through it by clicking next or back. I used some codes, they had no error but they weren't able to display my pictures during run time.

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Graphics - Displaying Various Shapes In PictureBox

Jun 22, 2010

I need to display various shapes in a picture box, and am trying to do so via a combobox that the user can select from. My problem is clearing a previous selection when a new selection is made.

Code to date is:
Public Class frmGraphics1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Populate cboShape with shapes
cboShape.Items.Add("Select a shape")
[Code] .....

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VS 2008 : Gradient PictureBox Not Displaying?

Apr 26, 2011

I've got all the code figured out to make a picture box appear with a gradient inside of it. My problem is that the gradient doesn't appear in the picture box when the form loads, paints, or when the picture box is painted. I can only make the gradient appear if i click the picture box after the form appears.

Dim xFormTopColour As Color = Color.Black
Dim xFormBottomColour As Color = Color.DarkOrchid
Private Sub frmTestGradientBars3_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Call GradientPictureBox(xFormTopColour, xFormBottomColour, picSample)

[code]....

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