GDI - CodeProject

GDI+

[tut 8] Hand tool

29 Jun 2016 by The Zakies

we would create Hand_tool to pan through the drawing form, and we would use a custom cursor of open and closed hands

[tut 9] hand tool (part 2) navigator panel

3 Jul 2016 by The Zakies

we will continue the functionality of the hand tool with having a navigator panel which works as a map, we will also have a red rectangle which tells the user where he is actually viewing inside the whole form, also it can be moved to pan the form

[tut4] Draw Lines with Circle and Rectangle End

7 Jun 2016 by The Zakies

[tut4] how to draw lines & to draw different types on end shapes like rectangle and circle using C#

A basic Particles System

19 Apr 2005 by Itay Sagui

Introduction to the basic idea of the particle systems, and how to create basic effects such as explosions and water fountains.

A Bicho Hunting Multiplayer Game

18 Feb 2010 by see1see

A practice of using Windows GDI and Winsock.

A Cool GDI Pattern Brush Tool with C++ Source Code

27 Aug 2003 by ucc801

A cool GDI pattern brush tool with C++ source code. You can create a new office XP style pattern fill mode quickly.

A Cool Vista Sidebar Gadget Style CPUInfo Animate Control! (Fixed)

8 May 2008 by Davidwu

A Cool Vista Sidebar Gadget Style CPUInfo Animate Control! (Fixed)

A custom drawing application based on the .NET Panel class

6 May 2005 by Naveen Karamchetti

Creation of a custom drawing application based on the .NET Panel class.

A Free Draw Library: Easy to Snap/zoom/undo/redo/copy/paste

4 Jul 2007 by realtang

A free draw you can use my example to do

A fully customizable PropertyGrid

24 May 2007 by Nicolas Bonamy

A grid to display and edit properties of objects (as in Visual Studio)

A Guide to WIN32 Clipping Regions

9 Apr 2002 by Paul M Watt

Guide to understand the three different types of clipping regions, and how they relate to the Device Context

A managed FreeFrame host

6 Feb 2013 by Jarno Burger

A managed wrapper around FreeFrame, to give your video frames some cool effects

A Multi-selectable Tree Control Supports Transparent Selection Rectangle

29 Dec 2010 by yonken

A multi-select tree control that is based on Richard's implementation

A Paint Program in MFC

29 Nov 2010 by ShivamShukla

How to retain the drawn line while drawing another,while mouse move,as InvalidateRect() is repainting the window every time. PLZ Please Help me as soon as possible.

A Paint Program in MFC

29 Nov 2010 by Alain Rist

See the Scribble MFC sample[^].cheers,AR

A Paint Program in MFC

29 Nov 2010 by KingsGambit

You can store the start and end points of previous lines and re-draw previous and new lines.

A Paint Program in MFC

13 Jul 2011 by Albert Holguin

Invalidate() should only be called when the particular window needs to be redrawn. Maybe you're calling it when you shouldn't be called. In general, the paint routines will only be called when windows determines there's been a change to your drawing context area, either by a window being...

A Picture Viewer Class that can Scroll and Zoom using API

10 Dec 2007 by Mohammed Abd Alla

This is a simple class that can view scroll and zoom pictures

A Polygon-triangulation Algorithm with Time Complexity O(N*logN)

16 Jan 2016 by Mathew_wwx

This tip will introduce a library written in C++ that wraps up a 2d polygon triangulation algorithm with time complexity of O(N*logN), the algorithm works on both self-intersected and non self-intersected polygons.

A Powerful and Flexible Text Drawing Function which has Simple Markup Tags

1 Sep 2004 by YoungJin Shin

This function makes for you to draw a fancy text easy.

A simple custom progressbar

21 Dec 2009 by P.Sandgren

A simple custom progressbar.

A Simple Digital LCD Demo

28 Dec 2009 by Aric Wang

Just a simple digital LCD class and do not use an external bitmap.You can use and change it.

VC6

A Simple HTML Drawing Class

5 Aug 2003 by BadJerry

Drawing HTML text onto a device context

A Small GDI+ Sprite Animation Library

8 Sep 2006 by Polymorpher

Animate and control sprites using GDI+.

About DeviceContext (DC)

21 May 2014 by Javad Taheri (drjackool)

Hi,I have a question about memory device context (MemDC),When creating a memory DC using CreateCompatibleDC(...) & CreateBitmap(...), the actual data (bitmap associated with DC) where is saved,in the main memory OR video card memory? and if in the main memory the raster operations (such...

About DeviceContext (DC)

21 May 2014 by Richard MacCutchan

A memory DC is just that, a piece of memory. It is only when you copy that to an actual device DC that the video card and GPU become involved.

About DeviceContext (DC)

21 May 2014 by CPallini

Some info here: "Comparing Direct2D and GDI Hardware Acceleration"[^].

About StretchDIBits

25 Jan 2010 by yingkou

Recently Having Readen Code About How to Show BMP By Operating Pixel,Idon't understand codes about Parameter(lpBits).Code As...

About StretchDIBits

25 Jan 2010 by #realJSOP

You're allocating memory for the image. In order to do that, you need to allocate memory for each pixel and the desired color depth of that image. That's what the 32*32*5 does.

About StretchDIBits

25 Jan 2010 by yingkou

To Above：>In order to do that, you need to allocate memory for each pixel> and the desired color depth of that image. That's what the 32*32*5 does.Could You Tell Me How Much Is That Image(32*32?) and The depth Is 5?

About StretchDIBits

25 Jan 2010 by Graham Breach

It isn't very easy to understand why from the context, but the 32*32*5 looks like it is allocating extra memory after the bitmap for use as something else. From the variable name, I would guess it is for 5 32*32 "characters".The 512*512 will be the size of the bitmap itself, using a 8-bit...

Adding Lightbox Effect to Winform Applications

18 Aug 2011 by Dave Franco

Adding Lightbox effect to Winform Applications

Adding or Retrofitting Aero Glass into Legacy Windows Applications

20 Jun 2007 by Stefan Kuhr

Adding Aero Glass to Windows applications while keeping them backwards-compatible with legacy Windows versions

Advanced Image Control

18 Jun 2016 by Patrik Mlekuž

Image Control for viewing most common image formats with advanced features included (Import Image, Preview, Resize, Position, Pan, Zoom, Export Image, Extract Resource Icon).

Alter the content before it is displayed on the Screen

12 Dec 2009 by rb.karanam

As I said earlier, what I was thinking is pretty vague. I know that we can mask the data by coding the masking logic within the application itself. However, I wish to push that logic down to the Display drivers level using GDI prgramming etc. To explain, lets a say I have one existing...

Alter the content before it is displayed on the Screen

11 Dec 2009 by AspDotNetDev

Of course. You have to get the data from somewhere before you display it (unless the user types it). Just mask it by replacing each character with an asterisk, for example. Or, if the user is typing it, you can use a texbox with masking enabled. And you can conditionally enable or disable the...

Alter the content before it is displayed on the Screen

12 Dec 2009 by rb.karanam

Alter the content before it is displayed on the Screen

17 Jan 2010 by RamchaAng

Hi Ramesh,I'm also searching for the answer to that problem... how to alter content to be displayed on screen at the device driver level.Have you found an answer to that problem yet? Maybe we can share some ideas with each other. Pls contact me soon.Thanks, Ramcha

Alter the content before it is displayed on the Screen

17 Jan 2010 by Christian Graus

wrote:Now without modifying that existing application, I would like to deploy it one call center assoicate's machine, yet not allowing the callcenter associate to view the SSN. At the same time, if the same application is deployed on any other authorized employee's machine, the SSN should be...

Alter the content before it is displayed on the Screen

18 Jan 2010 by RamchaAng

Hi ChristianI am also working on this problem. The aim is to create a data masking software which works on all kinds of documents n applications. To do this we should first capture the text to be displayed on screen.This can be done using API's at the driver level. Here I believe we...

Alter the content before it is displayed on the Screen

18 Jan 2010 by avinash2010

Hey ppl, yea... I have been on this for quite sometime now and as you said I believe this can be cracked at the device drivers level only. We can use API(lang dependent or independent) for extracting the desired text which need to be provided to the device drivers. Coding at...

Alter the content before it is displayed on the Screen

1 Mar 2010 by rb.karanam

Did anyone get any help or some direction towards the solution .. I am still doing same research and am no where.

Alternative to MFC for GDI Programming

19 Jun 2007 by lano1106

Exploring the MFC GDI classes' inner working and proposing an alternative

An Alpha Channel Composited Windows Form with Designer Support

5 Oct 2009 by Jeff J Anderson

An alpha channel composited form for image based Window frames

An Apple Style Docking Bar Implemented by eGui lib

22 Dec 2007 by YangXiaoWang

An apple style docking bar implemented by eGui lib

An HTML5 Remote Desktop - Part I

11 May 2010 by Gustavo Ricardi

A Remote Desktop software built on AJAX, JSON and HTML5

An Interactive Periodic Table of the Elements

4 Oct 2003 by Terry O'Nolley

An article using GDI to create a scalable periodic table of the elements

Animated Dialog Windows

17 Apr 2000 by Anton Stuck

A class that provides some simple, yet spectacular window animation effects. Try the demo!

Animated Image Slide Show

28 Jan 2015 by syed shanu

Animated Image Slide Show for Winforms using C#

Another Flexible ListView Control

17 Jul 2010 by Hoang Khanh Nguyen

A highly object-oriented ListView control with varying-height items and support of complex data types

ANTIALIASED_QUALITY has no effect

11 Jun 2012 by Iron-Eagle

Hello!I am trying to draw text string to string with openGL. I generate string to texture and then I draw the texture. Despite the fact that I setting ANTIALIASED_QUALITY fonts still pixelate and ugly.ExampleHere is the code I use: HFONT m_font =...

ANTIALIASED_QUALITY has no effect

11 Jun 2012 by nv3

First check whether your font "Compress" allows anti-aliasing, e.g. being a TrueType font.The operating system also plays a role in the game. The MSDN documentation of the LOGFONT structure contains the following hint:Windows 95 Plus!, Windows 98/Me: The display must greater than 8-bit...

ANTIALIASED_QUALITY has no effect

12 Jun 2012 by Iron-Eagle

Everything works fine. It was another bug in our system. Thanks everyone, sorry.

Antialiasing Using Windows GDI

1 Dec 2007 by darkoman

An article on a simple but efficient method to do antialiasing using plain Windows GDI

Antialiasing: Wu Algorithm

6 Nov 2007 by .Suchit

Generating smooth lines with antialiasing; sample code for animation is included

Article on Screen Resolution

17 Apr 2003 by Barretto VN

Article on changing screen resolution

ASCII Animation (Just for Fun)

20 May 2002 by Jason Henderson

Draw and animate ASCII characters to a window using this COM object.

Audio Book Player

11 Jun 2009 by brochpirate

Audio player designed specifically for listening to audio books

Automatic Font Handling Class

14 Aug 2014 by Jamie Nordmeyer

A class to make working with LOGFONTs easier

Autopanning All Windows, Views and Controls

19 Nov 1999 by Maximilian Pasternak

Autopan within your own application

Banishing String Literals from XAML Resource References

3 Oct 2009 by Daniel Vaughan

Banishing String Literals from XAML Resource References

Windows

Barry's Screen Capture

11 Jan 2003 by Barretto VN

An article showing methods of screen capture

Basic Base64 Encoded Image Viewer

5 Aug 2015 by sreeyush sudhakaran

VB.NET code for Base64 Encoding and Decoding of Image files

Beginners - Starting a 2D Game with GDI+

25 Jun 2012 by codiemorgan

Basics for setting up a 2D Game using GDI+, Renderloop, and Threading. And a few tips.

BeginPaint/EndPaint or GetDC/ReleaseDC?

18 Mar 2010 by Mohammad Elsheimy

Which is better, to use BeginPaint/EndPaint, or to use GetDC/ReleaseDC?

Best way to invalidate an area

14 May 2010 by 23_444

I need to invalidate different areas on a screen at the same time (occurring in the same function).I could invoke the InvalidateRect(&rc) for each area:InvalidateRect(&rc);InvalidateRect(&rc2);or I could create a region and add the rectangles to the region and then use...

Best way to invalidate an area

15 May 2010 by Richard MacCutchan

23_444 wrote:I'm not convinced ... that WM_PAINT is firing for each call.You are correct, these calls tend to get collected together and then the app gets a single WM_PAINT message for an accumulation of more than one of the invalidated regions. As to the advantages of doing it this way,...

Binding and Handling JSON Field In jQuery Repeater

26 Dec 2011 by zoyobar

Binding and Handling JSON Field In jQuery Repeater

boost 2: shared_ptr wraps resource handles

16 Nov 2004 by peterchen

Using boost, we can write "almost perfect" wrappers for GDI and other resource handles, in a few lines of code.

Burn the Edges of Your Windows to Give Them Character

31 Mar 2008 by Michael Dunn

No, that's not a typo

Button in Dialog setFont cann't revover

3 Jul 2012 by jiazhiqiang

LOGFONT LogFont; CFont * pCurFont=GetFont();//Dialog's Font if(!pCurFont) return; pCurFont->GetLogFont(&LogFont); LogFont.lfWeight=(bBold?FW_BOLD:FW_NORMAL); CFont font; font.CreateFontIndirect(&LogFont); pWndSel->SetFont(&font);I have a Button in Dialog,When I first Setfont()...

Button in Dialog setFont cann't revover

4 Jul 2012 by Code-o-mat

I belive the problem is that you are giving your button a font that is "stored" in a local variable.Quote: CFont font; font.CreateFontIndirect(&LogFont); pWndSel->SetFont(&font);-when font goes out of scope, its destructor deletes the font resource. When the button gets redrawn, it will...

C 2D Plotting Library

26 Oct 2011 by chx101B

Hello. I have a project that I haven't started yet as I am looking for a plotting library.If there's any out there(lightweight and re-destributable) I'd be happy to use it.It can also be a GDI wrapper.All I need it to do is be able to draw two axes and a key representing the...

C 2D Plotting Library

26 Oct 2011 by Espen Harlinn

I guess that by plotting you are thinging about a chart (and not something more sinister :) )There is one project here on CP that may suit you:A flexible charting library for .NET[^][Updated for c]Cairo is a 2D graphics library with support for multiple output...

C 2D Plotting Library

26 Oct 2011 by markkuk

PLplot[^] or MathGL[^]

C# \ VB.NET Camera Communication Libraries

15 Dec 2011 by shynet

Stream a live camera video stream or single images between applications using the TCP protocol.

18 Sep 2021 by Storm Kiernan

This code is giving me problems: private void SaveBMP(Bitmap bmp) { bmp.Save(_project.MapFilePath); }This line throws a generic GDI+ error.bmp.Save(_project.MapFilePath);Any ideas?quote:It means that the file path points to an image that...

16 Jan 2010 by Christian Graus

It means that the file path points to an image that has already been opened in GDI+. You need to be careful to close your images when you are done with them. There's tons of info on this on the web, but that's the core of all the info you'll find. Bugs in GDI+ cause it to hold a file open,...

30 Oct 2011 by Storm Kiernan

The solution was to do:private void SaveBMP(ref Bitmap bmp) // now 'ref' parameter{ try { bmp.Save(_project.MapFilePath); } catch { Bitmap bitmap = new Bitmap(bmp.Width, bmp.Height, bmp.PixelFormat); Graphics...

17 Jan 2010 by Christian Graus

Sure - that means that the image that was being held open, was the one that you were working with, which is not surprising.

16 Apr 2014 by SMPS LLC

public static void SaveJpeg(string path, Image img, int quality){EncoderParameter qualityParam= new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);ImageCodecInfo jpegCodec= GetEncoderInfo(@"image/jpeg");EncoderParameters encoderParams= new...

10 Apr 2015 by hisham ahmed

Bitmap newBmp = new Bitmap(bmp);bmp.Dispose();newBmp.Save("yourPath");MessageBox.Show("Saved");