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by: Question with BinaryReader |
last post by:
Is someone can give me example?
I want to create Bitmap with pixel data saved in a binary file, the data
file only have red data block and green data block. I have implemented it
with VC6.0, now I want to rewrote it with C#.
My question is
1. using of Bitmap (Int32, Int32, Int32, PixelFormat, IntPtr)
2. how to implement memory copy efficiently in C#
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by: Dennis Myrén |
last post by:
Hi.
I use System.Drawing.Bitmap to copy bitmap pixel data.
I use LockBits to retrieve a BitmapData which in turn provides me with the
Scan0 property which i then use to loop the pixel data using a byte *.
I am aware of that internally GDI+ stores RGB as BGR,
therefore i have to manually swap the R and B components of each
pixel.
Since GDI+ internally stores the components in BGR order, there is'nt a
way to copy the entire pixel data...
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by: wavemill |
last post by:
Hello!
I would like copy my control in a bitmap and after in a jpeg.
I have an error of gdi!
This is my code
System.IntPtr intPtr = this.RichTextBox.Handle;
System.Drawing.Image img = Bitmap.FromHbitmap(intPtr);
img.Save(@"Mypath\test.jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
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by: Bruce D |
last post by:
I'm having a problem saving my bitmap in my MySQL database. Apparently it's
too big...but it shouldn't be. Here's what I got:
Dim bmpDocument As Bitmap = Bitmap.FromHbitmap(hDibCopy) ' get image from
scanner
Dim bmpResize As New Bitmap(bmpDocument, 680, 880)
mySQLManager.InsertDBImage(elmImageIndex, intNextDocument, bmpResize)
Public Function InsertDBImage(ByVal ImageElement As XmlElement, _
ByVal
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by: Jørn Jensen |
last post by:
Hey!
I have an issue with creating bitmap from an IntPtr. The IntPtr is created from a Twain scanner, which seem to work perfectly in it's original state (the app is originally written by somebody else). It's when I add the I get an error.
Extracts of my code and the error statement from the Visual Studio Debug bellow:
Select Case cmd
Case TwainCommand.CloseRequest
EndingScan()
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by: cosminb |
last post by:
I have a native function which returns an image in the form of a BYTE*
lpDIB array. How do I convert it to a Bitmap, so that I can work with
it properly in C#?
Thanks in advance,
Cosmin
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by: cody |
last post by:
So I am trying to save a bunch of screen captures, and I am having
problems. The bitmaps appear to be saving correctly, since once I run
the program I get a bunch of 5MB files in the bin/Debug folder, however
whenever I try to open them I get an error saying file not found. The
code is posted below, any help is greatly appreciated.
namespace pictures
{
public partial class Form1 : Form
{
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by: active |
last post by:
The ColorPalette class has no constructor so how does one use it?
I define a variable by:
Dim cp as ColorPalette
but don't know how assign an object to the variable.
Thanks in advance
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by: Joe Duchtel |
last post by:
Hello -
I have the following code to get a bitmap from the clipboard and to
save it to a *.png file ...
Dim lData As IDataObject = Clipboard.GetDataObject()
If lData.GetDataPresent(DataFormats.Bitmap) Then
Dim lPictureBox As New PictureBox
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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