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All Articles

Bitmap

"A generic error occurred in GDI+"

16 Mar 2014 by Sicppy

I get "A generic error occurred in GDI+" when I try to save a bitmap(that I have opened and edited). It only happens some of the time. I have no idea why this is happening, please help. It occurs at line 162.Thanks in advance,Jordanusing System;using...

"A generic error occurred in GDI+"

16 Mar 2014 by Abhinav S

Check the folder permissions where you are saving the file.You should have permissions to save the file.In addition, ensure that the file does not already exist and is open in another program.

.NET Bitmaps with Full 16bit Support

18 Mar 2014 by Johannes Bildstein

Reading and writing Bitmaps with full 16bit per channel (and possibly more)

[C#] RTF text to bitmap image? Any easy way around?

1 Oct 2012 by Jackie00100

Hi im working on a little "lol" project that should work like a semi-simple image editor, and i am currently looking for a way to add text to a image. How ever the text is RTF encoded (to get the bold/italic etc. options) and i really wanna have this added to the program.I've seen a few...

[C#] RTF text to bitmap image? Any easy way around?

1 Oct 2012 by Bernhard Hiller

You need the Graphics.DrawString method. You can get the Graphics object by Graphics.FromImage. And then draw all the text your self...

[C#] RTF text to bitmap image? Any easy way around?

2 Oct 2012 by BobJanova

There are two options here:You can write the text to a RichTextBox and then screen capture it with Control.DrawToBitmap[^]. You probably need to post-process the Bitmap you get to sort out the transparency.You can write a miniature RTF (or HTML or other tagging system; RTF is pretty...

[C#] RTF text to bitmap image? Any easy way around?

21 Oct 2012 by Jackie00100

I found this class recent extending the graphics class, i changed it a little, and it does everything i could ask for!using System;using System.Drawing;using System.Runtime.InteropServices;using System.Windows.Forms;using System.Drawing.Imaging;using System.Text;public static...

A generic error occurred in GDI+

28 Sep 2015 by Scarnet

Hello, I'm using that code below to get the text from a hidden file that contains the string of an SVG tag in the ASPX file then I used the SVG library to get a bitmap image out of this SVG text the function Draw() returned a bitmap image just fine but whenever I try to save that bitmap...

A generic error occurred in GDI+

28 Sep 2015 by OriginalGriff

There are loads of ways to cause this, but in your case, it's almost certainly becais ethe path is invalid: Bitmap.Save expects a "normal" windows path, not an IIS based path descriptor.Try this:image.Save(Server.MapPath("~/img/temp/temp.bmp"));And make sure that the "img" and "temp"...

A problem about directX texture.

30 Mar 2013 by liaoyuandeyehuo

LPDIRECT3DSURFACE9 g_pSurface;...

A problem about directX texture.

30 Mar 2013 by Maxim Kartavenkov

1. GetFrontBufferData does not recommended to use as it slow.2. You are getting screen into system memory and what for you copy it back to the texture?3. You copy via Locking which is not good.To solve your issues see:This API D3DXLoadSurfaceFromSurface usd to copy from one surface to...

A very simple magnifying glass

23 Jan 2012 by Stef Cas

A VB.NET project showing how to build a simple magnifying glass.

Accessing a bitmap with pointers

16 Jul 2012 by bikekowal

Hi all,I have a following problem. I want to build a application processing images from a camera in real time. The problem is that I cannot get to the bitmap data correctly. The following piece of code is running without errors but the problem is that the images don't change. The code...

Accessing a bitmap with pointers

16 Jul 2012 by Sergey Alexandrovich Kryukov

As I can see, you manipulate the bitmap and then completely forget the result, replacing it with a brand new instance of a bitmap (a line of code with new Bitmap(&hellip)).Besides, the name "m_PicBoxes" suggests that you use the class System.Windows.Forms.PictureBox, which is not a very good...

Accessing bitmap pixels that correspond to a graphics region.

23 Aug 2013 by Totallyniels

Hello all,I would like to start off with stating that i'm not a professional programmer, and often work from examples I find on sites like Code Project. It might be that i'm approaching this from the wrong angle, so please comment as you see fit.BackgroundFor some analysis purpose I...

Accessing bitmap pixels that correspond to a graphics region.

24 Aug 2013 by Totallyniels

For anyone interested..I solved this by creating a "Mask" bitmap and filling it white and the region with black. I could then iterate the mask bitmap pixels to get pixels of interest. Without filling it completely white pixels are somehow not read correctly.The solution was actually...

Ajax Tabs.DrawToBitmap() Method

15 Oct 2015 by Member 11999641

hi Members, I have a ajax tab container that has several tabs, and I want to use DrawToBitmap to save each visible tab page as a separate bitmap file in an Image folder. My tab pages are created dynamically.This is my codes://Aspx file

Android drawing on bitmap is disappear after touch up event

4 Oct 2015 by dsz_848

I am trying to implement an application to get an image from the device and add it to the canvas then start drawing on it using brush and eraser (like snapchat idea) I used Drawing app as a basehttp://code.tutsplus.com/series/create-a-drawing-app-on-android--cms-704My problem for now is...

Android drawing on bitmap is disappear after touch up event

4 Oct 2015 by Krunal Rohit

case MotionEvent.ACTION_UP: drawPath.lineTo(touchX, touchY); drawCanvas.drawPath(drawPath, drawPaint); drawPath.reset();// this line is the issue, on Touch_Up you're resetting the drawPath, which means whatever changes you've made so far, it'd be all gone.-KR

Any ideas for scanning multiple choices answers?

17 Dec 2018 by OriginalGriff

And how does this differ in any material way from your last question: How to crop an image in an appropriate way, C#?[^] The solution you have been given does not change just because you don't like the answer!

Approach to Paste a Bitmap into an Icon Image on ReactOS (and Consequently on Windows XP and Newer Versions, using Win32 API)

27 Dec 2020 by Steffen Ploetz

Step-by-step instructions and source code snippets for inserting a bitmap (or a section of it) into an icon image.

Binary data image to black and white image file C#

4 Jan 2018 by Amedora Ahmed

I am reading binary data image from a serial port device how can i write it to a black and white image file. The project is a bill counting machine which solution. the device scans images of serial number of bill counted including the data counter Below is the data returned from the device as...

binarywriter to stream or binarywriter to bitmap

21 Mar 2012 by sidali.kadi

hi guysi want to know how can i convert the binarywriter to stream or binarywriter to a bitmapbest regards

binarywriter to stream or binarywriter to bitmap

21 Mar 2012 by Sergey Alexandrovich Kryukov

You cannot "convert" them. The whole notion makes no sense.First: System.IO.BinaryWriter vs. System.IO.Stream. First class is a specialized wrapper (binary, write-only) over the second one. Please see:http://msdn.microsoft.com/en-us/library/system.io.binarywriter.aspx[^].Do I have to...

Bitmap combination

27 Aug 2013 by huyletran

Create a new bitmap by combining many bitmaps.

Bitmap Constructor Throws ArgumentException in Win XP but not Win 7 - why?

13 Feb 2013 by Martin P. Davies

Hi all,I have a problem with the Bitmap constuctor in .NET - it works fine in Windows 7, but throws an ArgumentException in XP, which is doubly confusing as according to MSDN documentation, the only exception thrown by the Bitmap constructor is a FileNotFoundException.As part of a...

Bitmap Constructor Throws ArgumentException in Win XP but not Win 7 - why?

13 Feb 2013 by TRK3

It's patently false that the only possible exception is FileNotFound. The file could certainly existed but have an exclusive lock on it -- in which case the constructor would have to fail, but not because the file wasn't found.Documentation says:"The file remains locked until the Bitmap...

Bitmap image overlay produces distorted result

5 Aug 2016 by User 6976447

I am using a custom class to write an image onto another image of bigger size.I am using a custom class to write an image onto another image of bigger size.doc - Google Drive[^]public class BitmapLockerTest{ private static string path = @"locker.png"; public static void...

image-processing

Bitmap increases tif size after reaching a certain point

20 Apr 2020 by AskalotLearnalot

I am using Bitmap to water mark tif image files after it reach file number 440 the image size increases which results in a small text watermark. My method is designed to process large amount of files, it also checks if the image is colored or not...

Bitmap increases tif size after reaching a certain point

20 Apr 2020 by OriginalGriff

We can't really tell, without running your code on your data - and we don't have access to either! So, it's going to be up to you. Fortunately, you have a tool available to you which will help you find out what is going on: the debugger. If you...

Bitmap method clone(bitmap, format) will not compile

1 Nov 2018 by MartinXLord

clone(Bitmap,format) Compiler say there is no overload that takes 2 arguments Microsoft docs describes the method ( with 2 arguments) for net frameworks 1.2 to 4.7.2 (Bitmap.Clone Method (System.Drawing) | Microsoft Docs[^]) I am using framework 4.5 and visual studio 2012 Express I have...

Bitmap method clone(bitmap, format) will not compile

31 Oct 2018 by MartinXLord

Edit the source line is:- newImage = (Bitmap)image.Clone(sRec,PixelFormat.Format16bppArgb1555); newImage is defined in the class Form1 : Form by:- "Bitmap newImage = null;" The compiler message was:- 'Error: No overload for method "Clone" takes 2 arguments'

Bitmap method clone(bitmap, format) will not compile

31 Oct 2018 by F-ES Sitecore

You're missing some parenthesis. newImage = ((Bitmap)image).Clone(sRec,PixelFormat.Format16bppArgb1555); In your original code "(Bitmap)image.Clone" You are calling the Clone method on whatever type image is, you're not calling it on image cast to Bitmap. By adding the parenthesis you are...

Bitmap method clone(bitmap, format) will not compile

1 Nov 2018 by MartinXLord

I have now tested this with Visual Studio 2017 Compiles OK - no error message

Bitmap on button in dynamic library

13 Aug 2016 by Member 12684118

HI,codeprojectersi have a question how would i put a bitmap on my button in dynamic library the bitmaps needs to be in /themes/ for who want a costum buttonWhat I have tried:I tried loadbitmap and etc but it didnt work

Bitmap on button in dynamic library

13 Aug 2016 by Jochen Arndt

If LoadBitmap() fails call GetLastError() to know the reason for the error.Loading a bitmap from file (especially by a dynamic library) is a bad idea because you have to hard code the path to the file. For this reason I expect the error code to be 2 (ERROR_FILE_NOT_FOUND).A better...

Bitmap on button in dynamic library

13 Aug 2016 by Member 12684118

Do you have any example on how to do it and display the image on the button??

Bitmap program closes/crashes

6 Feb 2020 by Member 14589606

I try to run the code, it doesnt tell the format but closes immediately, any ideas? The path is correct as it some times flashes the format and then closes using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using...

image-processing

Bitmap program closes/crashes

6 Feb 2020 by phil.o

If you do not want it to close automatically, you can addConsole.WriteLine("Press a key..."); Console.ReadKey(); at the end of the Main method.

image-processing

Bitmap question: HBITMAP

10 Jul 2011 by Bob Namenottaken

Using SetBitmapBits is confusing me. Is its sole purpose to transfer my array of pixel info to a buffer owned by the handle "HBITMAP" ?Is there a way to know where this buffer is located and write to it directly?Seems like a waste of time to draw on your own array and then perform a huge...

Bitmap question: HBITMAP

10 Jul 2011 by Emilio Garavaglia

GDI object's internal data don't belong to your process but to the GDI subsystem. You cannot read/write to them directly because there is a "process boundary" in between (they can even be on another machine!).The memory itself can be moved around by the GDI functions, without your program...

Bitmap region is already locked

9 Jun 2014 by Mohammed Nabeel Khan

Getting (Bitmap region is already locked) error when locking two bitmaps to compare pixels.Bitmap b = (Bitmap)pictureBox1.Image; Bitmap b2 = (Bitmap)pictureBox1.Image; // GDI+ still lies to us - the return format is BGR, NOT RGB. BitmapData bmData...

Bitmap region is already locked

9 Jun 2014 by Sergey Alexandrovich Kryukov

What is unclear in this error message? It is quite straightforward. You are doing wrong thing: you cannot lock bits on the same Bitmap b twice and work with bmpData and bmpData2 at the same time. And, in practice, it's never needed. You can create bitmap data once, do what you need to do with...

Bitmap(jpg bmp etc...) to SVG

21 Mar 2015 by Member 11544807

Hi guysmy problem is to convert bitmap to SVG in c#. I found something like this http://docs.opencv.org/2.4.2/doc/tutorials/imgproc/shapedescriptors/find_contours/find_contours.html but this didn´t solve my problem. I need to convert for example a facewith white background from bitmap to...

Bitmap(jpg bmp etc...) to SVG

21 Mar 2015 by OriginalGriff

We aren't going to be able to give you an "out of the box" solution: this is not a trivial process in any way, shape or form.The problem is that Bimap, JPG, PNG, etc. files are raster graphics: they store a fixed array of pixels in various shades of red, green and blue (or hue, lightness and...

Bitmap(jpg bmp etc...) to SVG

21 Mar 2015 by phil.o

SVG being an xml-based format, if you do not want to use xml, you are going to have quite a hard time :)The following post on SO could perhaps shed a light on your requirement:SO: Convert Image (JPG,BMP,GIF) to SVG[^]

Bitmap(jpg bmp etc...) to SVG

22 Mar 2015 by Member 11544807

ok so now.. i need to trace that bitmap... and then vectorize it... and save as SVG... but i cant use freeware like inkscape... i need to make my own app.

BitmapImage Collection Memory Management

23 Nov 2011 by Freeboss

Hi,Let's create a:ObservableCollection BitmapsLists = new ObservableCollection();Then let's fill it with some random Images: foreach (string item in Directory.GetFiles("Some Folder")){ BitmapImage BitImage = new BitmapImage(); ...

BitmapImage Collection Memory Management

23 Nov 2011 by LanFanNinja

Try thisGC.Collect();GC.Collect Method [^]

BitmapImage Collection Memory Management

23 Nov 2011 by Freeboss

I found it.. I'll post the solution l8---------------------------------Just Because you create a BitmapImage using a Uri as source doesn't mean that it it being created at the same time even if you set the BitmapCacheOption to whatever value..The BitmapImage is gonna get Loaded into...

C# & SQLite - Storing Images

15 May 2011 by kribo

How to insert images / binary data into a database.

C# : DIB byte array to bitmap

13 Sep 2017 by Member 13373000

I am working with COM Interface of a software, OMICRON MPD 600 to be particular. I would like to take a screenshot using the provided methods however it returns the image as DIB populated inside byte array. How can use this byte array to save this screenshot as an image. I would prefer DIB to...

C# : DIB byte array to bitmap

13 Sep 2017 by Graeme_Grant

There is an article right here on Code Project that will answer this for you: DIB to System.Bitmap[^]

C# Bitmap only loads when static file address is specified

29 May 2015 by tetsuoandyouth

I'm trying to create a method which loads a image (png) and stores it in a Bitmap variable to be used later. The code is as follows: private static Bitmap LoadImage(string subfolderName, string imageName) { string fileSpec = string.Format(@".\Images\{0}\{1}.png", subfolderName,...

C# Bitmap only loads when static file address is specified

29 May 2015 by OriginalGriff

Start by doing two things.First, change your code slightly: string fileSpec = string.Format(@".\Images\{0}\{1}.png", subfolderName, imageName);Becomes: string fileSpec = Path.Combine(@".\Images", subfolderName, imageName + ".png");This removes any chances that your...

C# Drawing a line from (bitmap image)dot to (bitmap image)dot.

8 Apr 2011 by Makiguso

Dear reader,I came here with a problem.I've been working days on a code that draws a grid of dots (6 rows, 8 columns) on the form. It was very hard for me to understand how to get it drawn on the form as my knowledge with Graphics in C# is very poor, but working eventually.What I'm trying...

C# Drawing a line from (bitmap image)dot to (bitmap image)dot.

8 Apr 2011 by Olivier Levrey

Is it really necessary to use an image? Can't you draw directly inside your form?You can use the MouseDown event to get the click position, and Paint event to redraw your line: public partial class Form1 : Form { public Form1() { ...

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

29 May 2017 by OriginalGriff

Not really: JPEG files are already compressed, and further compression often makes them larger, not smaller. You're already using ZIP compression, but it's unlikely to produce significant gains on a JPEG file anyway. If you get an extra 10% then you were doing well. But...you do realise that...

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

29 May 2017 by CPallini

As already noted you usually can't gain much trying to compress a JPEG image, which is alreay compressed. In your code you changed the image size, making it smaller. If it is acceptable to make it even more smaller, then you may save some memory.

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

28 May 2019 by MinYoung Lee

I've been trying to develop Remote Desktop Program in C# and I want to make the BYTE size of my Image smaller. Here is my attempt below so far. // int w = Screen.PrimaryScreen.Bounds.Width; int h = Screen.PrimaryScreen.Bounds.Height; ...

C# is there a way to minimize a BYTE size of image before sending to server using sokcet

28 May 2019 by AntonioLeonardo

The imagem compression follow another objects and features that different of trivial files; image compreession has properties to equalize the compression. Like code bellow, the compression act on Quality property: static byte[] CompressByImageAlg(int jpegQuality, byte[] data) {...

C# TPL Projection in height direction

4 Nov 2012 by DX.Zong@hotmail.com

hi,I have written code like this: private static unsafe Point[] Hproject(Bitmap bmp) { int height = bmp.Height; int width = bmp.Width; Point[] result = new Point[height]; var data = bmp.LockBits(new Rectangle(0, 0, width, height),...

C# TPL Projection in height direction

4 Nov 2012 by DX.Zong@hotmail.com

Is anyone help me to check the upper code?

C# WPF Show Bitmap To Canvas

24 Jun 2014 by pertican2010

Hi I Working On WPF Project And Need To Show Image From Sqlite In Canvas. Int32 i = 1; if (i > 0) { DataRow dataRow = helper.DataSet.Tables[0].Rows[i - 1]; //Get Bytes From DataBase ...

C# WPF Show Bitmap To Canvas

24 Jun 2014 by pertican2010

Here Is My Codes I Get Image Byte Array From My DataBase And Convert It To Bitmap And When I Want Show It On Canvas I get This ErrorIs There Other Way To I Convert Bitmap To Image And Show It In Canvas Box? private void comboBox1_SelectionChanged(object...

C# WPF Show Bitmap To Canvas

24 Jun 2014 by Balav4

Hi Try this MemoryStream Ms = new MemoryStream(); System.Drawing.Bitmap ObjBitmap = null; ObjBitmap = //Load your Image; ObjBitmap.Save(Ms, System.Drawing.Imaging.ImageFormat.Bmp); ...

c#: How to convert large bitmaps?

1 Dec 2011 by mgulde

Hello everybody,I am currently dealing with very large bitmaps (32bit, > 1GB) close to the bitmap size limit (~ 32 kpx squared). For file storage reasons, I would like to convert these bitmaps into more suitable formats, e.g. jpg or png. But I have to convert them without loading the whole...

c#: How to convert large bitmaps?

1 Dec 2011 by MuhtarQong

Now, you are using Photoshop. What is the environment at the later stage of your project (.NET or Java or C)?

c#: How to convert large bitmaps?

1 Dec 2011 by #realJSOP

You might want to look into using the FreeImage library or the ImageMajik library. I'm pretty sure one or both of them can handle images that size (GDI+ is the reason you can't do it in native .Net).Google is your friend.

C++ 2d array to bitmap

23 Jul 2012 by NypStu

Hello, I have a question regrading about converting int into bmp. my objective is to convert the int into a greyscale bmp so i set Red blue green into the same value. however because the value of 2d array is int array_ptr[1000][1536];(1536 col x 1000rows) which i have declare using double...

C++ 2d array to bitmap

23 Jul 2012 by enhzflep

I did something like this years ago when creating a series of images that could be used as a height-map for surface of an animated, windswept ocean. Lots of fun at the time in that one... Complex Numbers --> rgb images. :wtf:Anyhow, a couple of questions that come to mind:1. What's the...

C++ 2d array to bitmap

23 Jul 2012 by enhzflep

I'd have preferred to add this code to a comment, but it's just impractical for so many reasons.Here's the code I had in the project I mentioned earlier. It does seem a bit funky now, some 4 1/2 years on - I think saveBMPfloat would be the easiest/quickest to modify. Just snip/replace the...

C++ 2d array to bitmap

24 Jul 2012 by nv3

In my opinion you are making things more complicated than they have to be. Here is the code that allocates your 2-dimensional array: int** array_ptr; array_ptr = new int * [1000]; // 1000 row pointers for(int i = 0; i

C++ Scanline functionality in embarcadero's builder

3 Dec 2017 by completeknowitall

Um.. I thought I understood scan line... but when I step through the code, the source pointer remains empty and nothng gets transferred. I you have any advice, I'm listening. this is the core of my code, I'm hoping to do stuff to the pixels between reading and writing, but this part doesn't...

C++ Scanline functionality in embarcadero's builder

5 Jan 2016 by Dave Kreskowiak

I haven't touched C++ in about 5 years and I've never even heard of Embarcadero, but... it looks like your cast is being applied to the wrong item. Shouldn't it be something like:Sbyte = (TRBGTriple *)(Source->scanline[y]);

C++ word recognition from an image (OCR)

21 Feb 2011 by Member 7692532

What I'm trying to do is to recognize words from a BMP or preferably directly on screen. I honestly have no idea where to start with this. The best thing I can come up with is to have a preset image and compare it to where it should be on the screen, but that would require a lot of CPU and quite...

C++ word recognition from an image (OCR)

21 Feb 2011 by Manfred Rudolf Bihy

Try this CP article for starters: OCR With MODI in Visual C++[^] and here you'll find an open source .NET C++ library: http://www.pixel-technology.com/freeware/tessnet2/[^]Modification:MODI has been deprecated in MS Office 2010. The replacement is OneNote and here is a useful link to...

Can not obtain dialog's background bitmap from treeview's subclass procedure

4 Apr 2014 by AlwaysLearningNewStuff

I have a dialog box with a bitmap as background.I am trying to create transparent treeview so I need to grab the underlying bitmap from treeview's WM_PAINT handler, but I do not know how to do this.I assume that I will need ScreenToClient and ClientToScreen APIs, but I do not know how to...

Can not obtain dialog's background bitmap from treeview's subclass procedure

4 Apr 2014 by KarstenK

you must transform with the right HWNDHWND hParent = GetParent(hwnd);ClientToScreen( hwnd, &ptTreeUL );ClientToScreen( hwnd, &ptTreeLR );//dont write such code ;-)ReleaseDC( GetParent(hwnd), pDC );tip: create the bitmap globally once to improve performance

Can't display bitmap in win32

12 Dec 2014 by Member 11287295

This is how i'm creating the bitmapBitmap bmp(100, 100, PixelFormat32bppARGB);Then I use LockBits to change a portion of the bitmap's pixelsvoid Example_LockBits2(){ UINT* pixels; // Lock a 50xs30 rectangular portion of the bitmap for writing. BitmapData...

Can't display bitmap in win32

22 Dec 2014 by bling

You need to assign bitmapData to the return value for Lockbits. BitmapData bitmapData = bmp.LockBits( &rect, ImageLockModeWrite, PixelFormat32bppARGB, &bitmapData);

Capture Hidden Webbrowser Control

21 Sep 2011 by Member 4160511

Hi everyone,is it possible too capture a Bitmap from a hidden WebbrowserControl?webBrowser1.DrawToBitmap(b, new Rectangle(0, 0, 600, 400)); doesn't work.This will only capture the control itself(scrollbars) not the children's so the content area is still white :-(any...

Capture Hidden Webbrowser Control

22 Sep 2011 by DaveAuld

Here's an example;http://www.geekpedia.com/code140_Taking-Website-Screenshots-With-The-WebBrowser-Control.html[^]

capture mouse cursor image and convert it as a buffered image c++

17 Jul 2012 by lakshman udayakantha

In my application I want to write a function that capture the mouse cursor image and return it as a buffered image(I hope to use that buffered image to receive from a java application via jni to construct the image for later use). I used below code snippet to get the mouse cursor image. bmi...

capture mouse cursor image and convert it as a buffered image c++

17 Jul 2012 by E.F. Nijboer

The following should give you hex values:cout

Change wallpaper with C# or remove the wallpaper for good

30 Apr 2016 by ByeByeByeByeBye

how would I change the wallpaper with C# back to a known path of a bitmap or remove the wallpaper for good? Is there any command for it. A SendKeys Combo would be fine.Can't access my wallpaper settings manually any longer, it's been greyed out all options and I have a strange bitcoin...

Change wallpaper with C# or remove the wallpaper for good

30 Apr 2016 by Richard MacCutchan

See also Wallpaper Changer[^].

ClearType ruins transparency

10 May 2014 by AlwaysLearningNewStuff

I have a bitmap which background needs to be replaced with part of another bitmap. Everything works fine until I enable ClearFont on my WindowsXP.In order to explain my problem better, let us label first bitmap as bmpDestination and second as bmpSource.Here[^] is how the bmpSource looks...

ClearType ruins transparency

10 May 2014 by leon de boer

I added this to your previous post it got messy so you probably missed it.There are ways around it but they are all slow and give different results which you have to choose between. There is no perfect solution because it is a bug or over-sight in windows Cleartype implementation.I...

ClearType ruins transparency

11 May 2014 by leon de boer

I have studied carefully the code from your previous answer and managed to handle WM_WINDOWPOSCHANGED properly for multiple windows but I can not handle slight flickering.What is causing the flicker is the way the listbox draws each item you need to do you own drawing to solve the problem...

ClearType ruins transparency

11 May 2014 by leon de boer

Oh I forgot I further improved your redraw and made it compliant to handling WM_PRINTCLIENT itself.case WM_PAINT: { // usual stuff PAINTSTRUCT ps; HDC hdc = BeginPaint( hwnd, &ps ); // Simply get printclient to paint ::SendMessage(hwnd, WM_PRINTCLIENT,(WPARAM)...

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

7 Sep 2018 by iDebD

//CMFCToolBar m_wndToolBar;if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP | CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) || !m_wndToolBar.LoadToolBar(theApp.m_bHiColorIcons ? IDR_MAINFRAME_256 : IDR_MAINFRAME)) { TRACE0("Failed...

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

13 May 2013 by KarstenK

use need to use DIFFERENT toolbars with the actual bitmap. Whether you create a new one and delete the old, or create an array is your choice.

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

13 May 2013 by KarstenK

step into the code and you will see, that the bitmap is attached to the toolbar, so you cant change it. So you need another toolbar.I have done that in the old XP-times and it worked fine.

CMFCToolbar: use Customized bitmap(HBITMAP ) runtime

9 Sep 2018 by jung-kreidler

Probably a little bit late, but it might help others. No, there's no need for another toolbar. When creating a toolbar the bitmap is loaded to a CMFCToolBar internal object, which can be reset by CleanUpLockedImages. After this another bitmap can be loaded with a call to LoadBitmap (same as...

Comparing Images using vb.net

26 Nov 2011 by chieto

Anyone here know how to compare 2 images. . and then show how many percent from before and after image captured. thanks in advance.

image-processing

Comparing Images using vb.net

26 Nov 2011 by Abhinav S

This[^] might help you.

image-processing

Comparing Images using vb.net

26 Nov 2011 by Yvan Rodrigues

That's kind of vague, but in essence you need to instantiate two System.Drawing.Bitmap objects and compare them pixel by pixel.You might find that something in the AForge.NET library could help your specific case._________________________________Yvan RodriguesRed Cell Innovation...

image-processing

Comparing Images using vb.net

26 Nov 2011 by Manoj K Bhoir

Check Out the following Code :Private Sub btnCheck_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles btnGo.Click Me.Cursor = Cursors.WaitCursor Application.DoEvents() ' Get the threshold. Dim threshold As Integer = _ ...

image-processing

Comparing Images using vb.net

26 Nov 2011 by chieto

Thanks for your reply. . but what algorithm im going to use?Thanks

image-processing