Delphi components have CreateWnd and CreateWindowHandle (and DestroyWnd and DestroyWindowHandle). They're both intended to be overridden by descendants, right? And not intended to be called except by the underlying VCL implementation? What's the difference between them; when should either of them be overridden? ...
Hello, I'm looking for a nice client-side way of presenting data for a web application that will mostly consist of datagrids. It doesn't have to be JavaScript, but it seems to be the most logical choice, because I like JavaScript. Also, I am not considering Flex. So far I came up with the following (JS only): Ingrid jqGrid ExtJS gri...
Hi all, I have a Java application that needs to be able to open multiple different file formats and embed the document within my java JPanel. In Windows I can do this with jaco zoom & ActiveX but I will be working in Linux. I have briefly researched npapi, mozswing, java plug-in technology, and bonobo & kparts. I am hoping to hear fro...
Hello everyone. I have a component which is created dynamically. I want to access the properties on it. for example i create a vbox and i want to access the text font or gap of the component var MyVBox: VBox = new VBox; MyPanel.addChild(MyVBox); How should it be done? ...
I usually use Delphi-targeted databases for most of my work (NexusDB typically, lately), but still have bad memories of how painfully slow connecting (and posting) to MS Access was via ADO. I have a new project that may need to target MS SQL Server. For D2007 Pro, what is the best way to connect to MS SQL Server? (Third party componen...
I am maintaining a program that uses the DevShock SMPP component for .NET. I have noticed though that for a long time (at least 6 months) the website has a "New Site Under Construction" notice, saying that it will be ready by September 2008. Does anyone know if it will ever be back? Does anyone know of another free comparable library/co...
I was in a project where I must be able to play almost audio/video files (format). The requirements: Video: .dat (vcd & svcd) .vob (dvd) .rmvb (real media) .mp4 (mpeg4/x264/h264) .wmv/.asf (windows media) .avi (xvid/divx/mpeg2,etc...) .mkv (matroska, optional) Audio: .mp3 (you probably know this) .ogg (vorbis) .wma (windows media) ...
Which .net control libraries out there would you recommend as a must have for an enterprise? Can be free/non free Should at least contain a real powerful Datagrid Ajax functionality Are there any comparisons available? ...
I'm interested in finding something out. In Delphi the default since the begining when buying components has been to be able to purchase them with source (even if it might be a slightly more expensive option). This made sense in Delphi for a number of reasons, firstly Borland led the way by providing the full source of the VCL with eve...
Are there any easy to use python components that could be used in a GUI? It would be great to have something like JSyntaxPane for Python. I would like to know of python-only versions ( not interested in jython ) . ...
Are there any scheduling components, commercial or otherwise, for ASP.Net MVC? Our company currently uses the Infragistics WebSchedule controls, but they don't appear to support MVC. Thanks! ++++Edit I think I may have been a bit unclear, I am not looking for a task scheduler, rather I am looking for a web calendar/appointment/schedul...
What component should I use to display a PDF file in a Delphi 2009 application? EDIT: I have been using PDF Viewer by Synactis - a very nice free PDF Viewer But it has no Delphi 2009 support. So I need to designing it out of the product ...
Hi. I have lots of components that worked perfectly under D7. I managed to compile and install them by dragging them into the Delphi 2009 IDE. However, when I try to use those components in a project, the compiler says it cannot find the source code of them. Where I can enter the path to that library? Solution: I dragged and dropped...
Is there any ready-to-use component for JSF that allows to chose the Date + the Time of an event? All components I know only allow for date. adding time manually is tedious. ...
I'm trying to write a simple component that will allow you to embed one or more SDL rendering surfaces on a Delphi window, using the SDL 1.3 APIs. It will compile and install just fine, but when I try to use the component in the form designer, it raises AVs whenever I try to access its properties in the object inspector, save the form, ...
What is people's experience in using bought-in components for ribbon-based user interfaces in DotNet (specifically c#, though I imagine the components should be language agnostic like any other DotNet beastie). We're using VS 2008. I've looked at other similar questions on Stack Overflow, like this one, but I'm more interested in feedba...
How can i stop the grid from scrolling while i am dragging outside the DataGrid component. ...
Hi, I am trying to create a component like TButtonedEdit of Delphi 2009. It is a custom TEdit that has 2 buttons in the left and right. In my version, I use 2 TSpeedButton objects for the left and right buttons. Please take a look my simple code below. It is ok to install it and I can see it in the component pallete. But, for some u...
I have used a lot of free .NET libraries, some from Microsoft itself! Which ones have you found the most useful? Package managers for external libraries NuGet (formerly known as NuPack) - Microsoft (developer-focused package management system for the .NET platform intent on simplifying the process of incorporating third party librarie...
I have a sensor that uses RS232 over USB to receive commands from a PC and send data to the PC. The sensor needs to be reset (using the DTR line) before a command can be sent to it. I tried to use the built-in .net serial port, but it does not seem to drive the DTR line as expected. I am beginning to wonder if the DTREnable property ac...