I've created a new bitmap object and am shading some pixels inside it black using the setpixel function. At the end I do:
myBlankBitmap.Save("D:3Didea_out.bmp")
Great. Except the bitmap that is saved is 32bit and won't open properly. I want it to be 8 bit. I can't find any options to change the bitdepth.
The code below reads an Icon from an .ico file, converts the Icon read to a Bitmap and saves the bitmap using:
Bitmap.Save(PathA)
Then does:
PanelShowWrittenIconA.BackgroundImage = New Bitmap(PathA)
[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 RepliesAm trying to debug an application written by someone else. The issue is we get an "Out of Memory" when executing the following code
[Code]...
i have drawn on a e.graphics object and now want to transfer the drawn stuff onto a bitmap object how can i do this?
View 2 Repliesi want open image (png), re size and save it as png-8 with transparent i can re size and save it but this not as png-8 format !!i use this but receive this exeption
[code]...
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?
I'm having an issue with some code I'm trying to write that takes a screenshot of the current screen and saves it to a bitmap file on my local PC.
vb.net
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click
[code].....
how can i add a page onto a tiff and save the bitmap?
VB
Dim img As System.Drawing.Image
img = Image.FromFile(imgPath)
Dim fd As System.Drawing.Imaging.FrameDimension = New
[Code].....
I have created an VB.NET page to record views for ads and will call page from img src.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim insert_number As Integer = 0
Dim ad_id As Integer = 0
[Code].....
I knew everything I needed to save an image, so I type in my code, and yet another error pops up. Here's the bit of code:
screenshot.Save(CaptureMain.picLocation.ToString, Imaging.ImageFormat.Bmp, "Screenshot")
And, the error's kind of lengthly...
Error1Overload resolution failed because no accessible 'Save' can be called with these arguments:
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type 'String' cannot be converted to 'System.IO.Stream'.
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type
[Code] .....
The variable 'screenshot' is a bitmap.
i mostly use C and assembly, but i thought i would give VB.NET a shot. i used to use VB6 all the time, so wanted to see how different this is. in VB2010, i'm trying to modify the pixels of a Bitmap object and then make it show up in a PictureBox on the form. i get no errors, but this code does not show the new bitmap after it runs.."disp" is the name of the PictureBox on the form.[code]
View 1 RepliesI'm having an issue with some code I'm trying to write that takes a screenshot of the current screen and saves it to a bitmap file on my local PC.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim tempScreenshot = New Bitmap(Screen.PrimaryScreen.Bounds.Width,
[code].....
I created a paint type program for signatures, and now I would like to save my canvas as either a jpeg, bitmap, or gif file, but I am unsure how to go about this. Here is my code,[CODE...]
View 4 RepliesI have an application which take image from a folder through system, Io.filestream and convert it into bytes and store into database as byte data format and same I retrive from database as byte format and convert it into image into datagirdview. now I want to convert it into again bytes from datagridview. How to possible the value of image in datagridview into byte format.
View 1 RepliesPretty self-explanatory question. I'm trying to see if I can do sprite animation in Visual Basic and, while I can use a Graphics object to translate a bitmap down a few pixels, I have absolutely no idea how to erase the bitmap drawn in its former position. Is there any way to erase the old image before the new image is drawn onto the form?
View 14 RepliesCan any one share some code with me that would explain the process of storing a bitmap data in tiff wrapped JPEG format.
View 2 Repliesmy goal is to copy the content of a picturebox, to a System.Drawing.Bitmap object, called tempBMP. but i didnt even use it i just tried to declare it there's an error: Object reference not set to an instance of an object.
here's my
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim colors(sizeX - 1, sizeY - 1) As Color
[Code].....
I am working on watermarking image.
In the below code I load the image to the graphics path using resource image and adding text on it. When I add the image through open file dialog it paints on the form with original size but I need to resize it, add it to the PictureBox, add text to it and give zoom and pan options to it and then I need to save with the original size.
When I resize and when save the image I endi up with a small image.
Here is my code:
Imports System.Collections.ObjectModel
Imports System.Drawing.Drawing2D
Public Class Form1
[Code]....
how to rotate,resize,crop any image and save it using vb.net ?
View 2 RepliesI have the following code found on internet:
Const WM_CAP_START = &H400S
Const WM_CAP_EDIT_COPY = WM_CAP_START + 30
'The first step is to recognize that the video captured by the web cam can be saved as individual images. By displaying a series of continuous images on the client, it is similar to watching a video stream. To capture an image, I have defined the following subroutine:
'---save the video data into the Image global variable---
Public Sub CaptureImage()
Dim data As IDataObject
Dim bmap As Image
Dim ms As New IO.MemoryStream()
'---copy the image to the clipboard---
[Code] .....
The problem is the code fail to retrieve the image from clipboard? What I'm trying to do is connect to a webcam, then save the video stream file on this webcam as bitmap file before transfer to the client side as an array of bytes.
i am drawing a string to a graphics object in the eg below and then transfering it onto a e.graphics in the paint event of a panel... when doing this the font edges appear dodgey...
Here is some
Dim b As New Bitmap(100, 100)
Dim g As Graphics = Graphics.FromImage(b)
g.DrawString("Bla Bla Bla", New Font("Comic Sans MS", 18,FontStyle.Bold), New LinearGradientBrush(g.ClipBounds, Color.Red,
[code]....
Okay, so I'm using this code to save a webpage to a file:
Dim myWebClient As New System.Net.WebClient
myWebClient.DownloadFile(mainbrowser.url.tostring, _
"C:/currentpage.html")
[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]...
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
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.
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
i am coding a sound recorder with VB2010, how to save/export the object file to .WAV file with save button?
Public Class SoundRecorder
Dim soundrecord As Object
Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA"
[Code].....
I have created a set of classes that represent an hierarchySo when I reference like this:
Dim alldeals as deals
alldeals.Deal(5).DealSlot(3).SlotType= "SomeType"
alldeals.Deal(5).DealSlot(4).SlotType= "SomeOtherType"
[code].....
I need to save the users clipboard contents to an object before I modify the clipboard, but I don't know how to do it.
View 3 Replies