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by: Jianren Lu |
last post by:
hi, all
I want to know how to put and get alpha-blended bitmap to or from
clipboard.
Although someone said using CF_DIBV5 and BITMAPV5HEADER to realize
that. But I am not a professional programmer, I still don't how to do.
Could someone show me a sample in C# related to this topic?
JR
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by: instruo |
last post by:
I'm using the System.Drawing.Bitmap class for loading a 32-bit bmp file which
includes an alpha channel.
The problem is, when it gets loaded (just using the Bitmap(string filename)
constructor), it doesn't bother bringing the alpha along with it. All of the
pixels just show "255" as their alpha value and Bitmap.IsAlphaPixelFormat()
returns false.
I know that the alpha does exist physically and has worked with this exact
image in other...
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by: melanieab |
last post by:
Hi,
I'm trying to save a bitmap file so I can print it later. I have
Image.Save("sImage.bmp",System.Drawing.Imaging.ImageFormat.Bmp);
The file sImage.bmp shows up in the bin\debug folder but when I try to print
it (or open it), it's completely black. I know Image is the correct picture
because when I immediately print it, it works. What am I doing wrong?
Thanks!
Melanie
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by: Jax |
last post by:
So far i've not had much luck with this method.
Bitmap.MakeTransparent(someColor);
Makes the transparent colour either a non-transparent black (.bmp, jpg or .gif) or silver (.png) i've tried another solution with system.drawing making the selected color have a zero alpha setting (in the palette) but when the image is re-uploaded (saved as .gif) it shows no transparency.
Does anyone else have any experience in doing this in ASP.NET, if so what...
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by: chuck |
last post by:
I load a bitmap using GDI+
now, I want to collect all the pixel values, (in RGB but
without the A component) onto a color array, say...
dim btmp1(,) as color
is there a method that can help me collect the pixel values
as quickly as possible (like one row at a time)?
what about setting (or changing) the pixel values back onto
the bitmap?
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by: Dennis |
last post by:
I have a bitmap and make the color transparent;
mybitmap.MakeTransparent(Color.Black)
When I save it as a Icon, the black color is not transparent. However, if I
save it as a bitmap then display it using windows explorer, the black color
is in fact transparent. Could it be that the bitmap is not an alpha bitmap
that causes the icon to not have the black color transparent?
--
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by: Henry Padilla |
last post by:
I'm writing an app that creates a bitmap of a map (land, trees, ocean). The
resolution of the map is ~84x52 (it can change but will get no larger than
256x128).
Since this is so small I resize it (using NearestNeighbor to retain the
definition between squares) to a larger size. I have two QoS points: 1) I
would like to keep the resizing fast enough to have it attached to the
window Resize event; and 2) I would like to create an alpha...
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by: Sharon |
last post by:
Hello Experts,
I'm creating a bitmap object like this:
Bitmap myImage = new Bitmap(1024, 1024,
System.Drawing.Imaging.PixelFormat.Format24bppRgb);
But when I invoking the function myImage .MakeTransparent() (with or without
parameters), the myImage.PixelFormat changes to Format32bppArgb.
Why is that and how can I avoid it but still making the Bitmap transparent ?
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by: herzog |
last post by:
Hi,
I am using C# to a draw a graphic on a memory bitmap. I then extract the color information of every pixel of the bitmap. I do this with Bitmap.GetPixel().
The trouble I'm having is that I need Bitmap.GetPixel() to always return pure RGB values -- ones that always have an alpha value of 255. This is because I need to reproduce the graphic in a different environment that does not have alpha values.
I realize I can get...
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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: 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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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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