Save Bitmap As Png-8?
May 31, 2012i 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]...
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Creating .BMP File From Bitmap.Save(Path, ImageFormat.Bmp) Differs From Using Bitmap.Save(Path)?
Oct 1, 2011The 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].....
C# - How To Save Bitmap As Icon
Oct 28, 2010I 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?
Take A Screenshot And Save To Bitmap?
Dec 29, 2010I'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].....
Add A Page Onto A Tiff And Save The Bitmap?
Jan 17, 2004how 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].....
ASP.NET Page_Load Runs Twice Due To Bitmap.Save
Jun 6, 2011I 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].....
How To Save Bitmap Object As 8bit
May 16, 2010I'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.
How To Save Screenshot (Bitmap) As Image
May 15, 2009I 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.
Interface And Graphics :: Take A Screenshot And Save To Bitmap?
Dec 29, 2010I'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].....
Save Canvas As Either A Jpeg, Bitmap, Or Gif File
Jun 15, 2009I 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 RepliesSave A Bitmap In Tiff Wrapped JPEG Format?
Jan 13, 2012Can any one share some code with me that would explain the process of storing a bitmap data in tiff wrapped JPEG format.
View 2 RepliesForms - Zoom, Resize A Bitmap On Graphics Path And Save?
Jun 23, 2011I 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]....
Open, Rotate, Crop And Save Picture As JPEG, Bitmap And So On
Jun 20, 2012how to rotate,resize,crop any image and save it using vb.net ?
View 2 RepliesSave Video Data Into Image And Convert Into Bitmap Format
May 25, 2009I 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.
System Memory In Bitmap - Using Bitmap To Show Picture Box Like Slideshow Using Timer
Jul 3, 2011I'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]...
Use A ToolTip Directly To A Bitmap Object (System.Drawing.Bitmap)?
Dec 15, 2010I'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 RepliesCreate Monochrome Bitmap From Semi Transparent Bitmap?
Sep 17, 2011how 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
Extraxct A Rectangle Bitmap From A Big Bitmap?
May 26, 2011Here 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.
Parameter Is Not Valid - Bitmap Bmp = New Bitmap()
Feb 10, 2010I 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
Can't Get Bitmap From Dll?
Jun 27, 2009I want to get a bitmap from a dll and load it to a picturebox. The bitmap I want is in Windowssystem32msgina.dll, the bitmap ID is 20150. (this bitmap contains shutdown, restart picture) Here's the code:
Private Declare Function LoadLibrary Lib "KERNEL32" Alias "LoadLibraryA" (ByVal strFilePath As String) As Long
Private Declare Function LoadBitmap Lib "USER32" Alias "LoadBitmapA" (ByVal hInstance As
[code].....
.net - Bitmap Generation With Dot.net And Png?
Feb 2, 2011What resources I need to look for, to generate one png image out of three? Since there are sprite generators out there, that do not do what I want, I wanted to try by myself. The user interface should not be the problem, but i have no experience of generating bitmaps, especially those with transparent backgrounds. I will do that in .net. Letīs say I have 6 png files. I want to put them into one image, where there will be two rows of images in it, so 3 in row, 2 in height, 3*2. Every image might have a little different sizes, so i would need to fill up the space with, um, nothing..
View 1 RepliesBitmap Rotation Using GDI+
Dec 26, 2009explain how Graphics.RotateTransform is working?
[Code]...
How To Clear A Bitmap
May 31, 2010I've created a bitmap on which I use setpixel to color it in. Then I display it on a picturebox. I want to clear the bitmap form time to time, reset all its pixels. I see no bitmap.clear() method and there's nothing in the documentation that seems. Short of disposing of or setting the bitmap = nothing and creating a new one, how do I wipe a bitmap?
View 8 RepliesOut Of Memory With New Bitmap
Mar 29, 2012The following code works with smaller images, but it throws an out of memory exception when the image is a png file, 8 bit depth, 13200x10234 pixels.
Using FS As New IO.FileStream(FileName, IO.FileMode.Open, IO.FileAccess.Read)
Dim B = New Bitmap(System.Drawing.Bitmap.FromStream(FS))
End Using
I'm working on a viewer that shows an image, asks the user for a window and saves the cropped image. Here is an overview of what I'm trying to achieve: The process starts with a 30+MB pdf file containing hundreds of large technical drawings. I open the file with the pdf reader, save as png 300dpi images, then I run my application that works on the saved images. I am interested on a few details of those drawings, and I have two goals:
1) Use my viewer with a subset of details instead of the pdf reader with the full set of whole images, and
2) Pick some cropped details and insert them into another application.
I start the application, look at the first image, click delete, and keep clicking delete until I find an drawing with a detail that I need. Then I draw a rectangle, save the cropped image, and repeat with 3-4 more details on the same image. Then delete the original image, go to the next, and restart the cycle. So I start with 100 large images in my folder and end with 20 small ones. At this point I can browse them very quickly and continue with the following steps (inserting them in another application).
VS 2008 How To Get A Bitmap From Gfx
Aug 31, 2009I was wondering if it is possible to get a bitmap from a gfx... I am painting straight to a panel in the paint method I DO NOT want to have to paint to a bitmap then return that bitmap then paint this bitmap on the panel - as this is a lot slower I am doing this as i need to obtain a bitmap sometimes (if the user has requested it) 1/2 way through a draw eg the user says i want the picture after it has drawn the 3rd curve (just explaining why I want to do it this way)
View 5 RepliesBest Way To Clear All Pixels In A Bitmap?
Aug 28, 2009Was just wondering if there is a way to quickly clear all pixels in a bitmap without creating a new one?
View 1 RepliesAdd Text BELOW Bitmap In Program?
Mar 29, 2011I'm trying to resize a .NET bitmap without actually scaling the image. The idea here is to create a space above and below the image, fill it with a black rectangle, and place some text there (without covering up or destroying any part of the original image).
All the code and examples I've seen of this thus far just show how to scale the image, not expand the canvas. So far, everything I've tried on my own also scales/stretches the image.[code]....
Asp.net - Converting Bitmap To Byte
May 9, 2012I have the following code:
Private Function SizeLogo(ByVal logoBytes As Byte()) As Byte()
Using originalMemStream As MemoryStream = New MemoryStream(logoBytes),
originalImage As System.Drawing.Image = System.Drawing.Image.FromStream(originalMemStream)
[Code]....
What I am trying to do is
Create 300width and 200height white bitmap Draw and center image that was uploaded into center
My problem is I am unable to save the created image. Is this a conversion issue? I've highlighted code where I think I am failing at.
Can't Make A New Bitmap From A Picturebox
Nov 25, 2010The error that I get is "Object reference not set to an instance of an object."[code]...
And is it even possible to do a vb6 style implementation? As I see it, this will clone the picture image while the vb6 implementation will just read directly off the image? and is lockbits like getdibits? I need to process 60 bitmap images of about 200pix by 200pix every second.
Convert A Wpf Bitmapframe To A Bitmap?
Aug 11, 2009how can i convert a wpf bitmapframe to a bitmap?
View 1 Replies
