Introduction to GDI+ in .NET

UCanCode Electronic form solution V12.0 from ucancode UCanCode software is the only software company to ship high quality E-Form Component Source Code in the world. With full edition of E-XD++ Suite, you have the 100% VC++ / .NET Source Codes of E-Form Designer and the 100% VC++ / .NET Source Codes of E-Form Reader, you also have the license to modify any party of these source codes to build your own E-Form Applications, it will save tons of month development time (Save Over 90% time to building E-Form based application), more... July 24, 2008 Telecom Datacom map process flow Solution from ucancode The UCanCode E-XD++ Component Enterprise Edition product family provides a complete set of display components for user interface developers building telecom or datacom applications.Cut development time by 50% while delivering industry-standard look-and-feel that helps operators make rapid, accurate decisions., more... June 04, 2008 Real-time gauge dashboard diagram solution from ucancode Monitor your critical real-time data using gauge and digital panel representations. UCanCode Gauges is a set of VC++ Soure Code Library that allow developers to quickly and effectively integrate gauges into their desktop and web-based applications. UCanCode Gauges includes full C++ source codes based Radial gauge, Linear gauge, Digital Meter and Marquee Panel components optimized for real-time with realistic look and adaptive styles for your environment, more... May 27, 2008 Gis / Map Draw, Display Diagram Component C++ Source Code Library Solution from ucancode The UCanCode E-XD++ Component Enterprise Edition product family enables you to develop Gis / Map based visualization applications quickly and efficiently. Map Displays with Custom Objects for .net and C++ Developers E-XD++ provides a complete mapping drawing, display, printing, software development kit (SDK) for creating any .net or C++ displays applications quickly and easily, more... UCanCode Graph Display, drawing, Layout solution from ucancode The E-XD++ Component Enterprise Edition product family enables you to develop graph visualization applications quickly and efficiently. With this component, you can easily enhance your applications with advance graph display, viewing and editing, xml loading, graph printing technologies support. You can customize both the display and the interactive behaviors of your application using ucancode leading industry standard components , more... UCanCode Home & Office Plan Drawing and Design solution from ucancode Each time when you want to create your own building design and office plan software, you should consider to use E-XD++ Diagram Component, it is the best component with almost all the features of Microsoft Visio 2007 and SmartDraw. It will save you many months for building any kind of office plan, home building design and drawing software, more...  HMI and SCADA Process Flow Diagram Component Solution from ucancode Monitoring GUIs for C++, VB, Java, and the .NET platform UCanCode XD++ provides a complete set of services, consisting of design tools and a software development kit (SDK), for developers who want to create a user interface for industrial monitoring applications. These displays feature highly customized graphical objects that connect to underlying real-world data, more... Circult diagram drawing Component Source Code Solution from ucancode E-XD++ Library is a powerful diagram drawing component for creating professional-looking business, technical drawings and illustrations for your documents quickly and easily. E-XD++ Library is the ideal component for creating any kind of Electric power diagram drawing application or circult drawing application, more... UML Diagram Component / Drawing C++ Source Code Solution from ucancode   E-XD++ Enterprise Edition Suite is a 100% C++ based diagram Component, it's UML Diagram Solution contains almost all the features of building a high-quality UML Application, as a UML modeling tool component, it helps you to quickly and easily build any kind of applications that has all varieties of UML diagrams. Developers save 50 to 80 percent of development time when creating displays with ucancode Visualization, more... BPMN Diagram Component / Drawing Source Code Solution from ucancode Business Process Modeling Notation (BPMN) is the standard for modeling business processes and web service processes. BPMN is a core enabler of Business Process Management (BPM), a new initiative in enterprise architecture. UCanCode Software provides rich and core components for Business Process Modeling Notation (BPMN). It includes workflows diagram designer, E-Form Designer, and BPMN Diagram Designer, more... Label Print and Report Print Component Source Code from ucancode  With E-XD++ Component, you can add advanced printing functionality to your applications. The E-XD++ Library is a 100% C++ data rendering and visualization system, built specifically for Visual Studio .NET and designed to bring your User Interface to the printed page. Now you only need a few days for building a very powerful label print or report print application, more... Proto - Logic Diagram Component Source Code from ucancode Add proto - logic diagram displays to your Java, C++, and .NET applications, for the desktop and rich internet applications. More... 2008, E-XD++ Flow Diagram Kit Enterprise Edition 2008 Volume 1 Released, this is a maintenance release that includes improved drawing performance, tons of new features, new samples, bug fixes and more. See the full list of changes here.

Device Context and GDI Objects

Drawing and graphics has special significance in almost every Windows application; MFC applications are no exception to this rule.

The Windows Graphics Device Interface (GDI) capabilities are encapsulated in two families of MFC classes. Device context classes provide an encapsulation of GDI device contexts and most drawing functions; GDI object classes encapsulate GDI objects such as pens, brushes, bitmaps, or fonts.

As in non-MFC Windows applications, drawing to an output device consists of obtaining the appropriate device context, setting up GDI drawing objects, performing drawing operations, and cleaning up. The MFC framework greatly simplifies these steps by assuming many of the more mundane responsibilities that used to befall on the application developer. For example, you can construct a pen object by passing the appropriate parameters to the Cpen constructor function:

Cpen myPen(PS_SOLID, 0, RGB(255, 0, 0));

and never worry about it afterwards; the GDI pen object is destroyed automatically by the Cpen destructor when the Cpen object goes out of scope.

As is the case with windows and CWnd objects, there is a distinction between the MFC (CDC- or CGdiObject-derived) object and the actual device context or GDI object in Windows. Constructing the MFC object does not automatically imply construction of an underlying Windows object. On the contrary, it is a legitimate practice to construct a blank MFC object first and later associate it with the Windows object as the need arises.

In this chapter, we first focus our attention on device contexts, which serve as the "canvas" onto which drawing takes place. Actual drawing operations (functions such as Rectangle, Ellipse, or DrawText) are also encapsulated in the CDC class and are discussed here. In the second part of this chapter, we shift our focus to classes that encapsulate GDI objects, which represent drawing tools.

MFC Example, and free VC++ Source Code Download

Using GDI+ with MFC or native C/VC++

VC++ Example Capture Print Screen to Clipboard including dropdown menu, SetWindowsHookEx and UnhookWindowsHookEx, with RegisterWindowMessage

CAM simulator Sample with VC++ MFC Source Code

Full Screen with CWnd and Diagram Like Microsoft Visio 2007