delphi

Delphi SOAP Envelope and WCF

Hi all, I am working on a system that provides a soap interface. One of the systems that are going to use the interface is coded in Delphi 7. The web service is developed with WCF, basic http binding, SOAP 1.1. If I use SOAP UI (JAVA), the service works properly. But Delphi seems to do special things here ;) This is how the message lo...

How to make Delphi Prism indexed properties visible to C# when properties are not default

I have several Delphi Prism classes with indexed properties that I use a lot on my C# web applications (we are migrating a big Delphi Win32 system to ASP.Net). My problem is that it seems that C# can't see the indexed properties if they aren't the default properties of their classes. Maybe I'm doing something wrong, but I'm completely lo...

Delphi Exception Handling - How to clean up properly?

I'm looking at some code in an application of ours and came across something a little odd from what I normally do. With exception handling and cleanup, we (as well as many other programmers out there, I'm sure) use a Try/Finally block embedded with a Try/Except block. Now I'm used to the Try/Except inside the Try/Finally like so: Try ...

Delphi - Differences between CompareStr and CompareString

Hi all, I'm hoping someone can shed some light on this for me> What are the differences, in Delphi 2009, between the CompareStr (defined in SysUtils) and CompareString (from Windows API) functions? Both let you specify the locale to be used, is the Windows one simply more "complete", due to the available comparison flags? Is one conse...

Delphi - form within form

For aesthetic reasons, I want to show a form on top of another form, just as if it were a component, say like a TPanel. It should resize with the parent, move around as th eparent is drageed by its title bar, etc. ----------------------------- | main form component 1 | ----------------------------- | main | the 'embedded' | ...

Char and Chr in Delphi

The difference between Chr and Char when used in converting types is that one is a function and the other is cast So: Char(66) = Chr(66) I don't think there is any performance difference (at least I've never noticed any, one probably calls the other).... I'm fairly sure someone will correct me on this! EDIT Thanks to Ulrich for the t...

Delphi - Why does ExplicitWidth and ExplicitHeight keep appearing in .DFM files and what is it!?

We've noticed that when checking in updates that our .DFM files have had ExplicitWidth and ExplicitHeight properties added for what appears to be no particular reason. My two questions are, what are they for and why do they get automatically added by Delphi? Below is an example with the property in: object Splitter2: TcxSplitter ...

How to get virtual com-port number if DBT_DEVNODES_CHANGED event accrues?

Hi! Previously I defined com-port number using DBT_DEVICEARRIVAL: procedure TMainForm.WMDEVICECHANGE(var Msg: TWMDeviceChange); var lpdb : PDevBroadcastHdr; lpdbpr: PDevBroadCastPort; S: AnsiString; begin {Заголовок сообщения} lpdb := PDevBroadcastHdr(Msg.dwData); case Msg.Event of DBT_DEVICEARRIVAL: begin {Добавление} if l...

JEDI controls always recompile

I've just noticed that whenever I do an incremental compile (ctrl-F9) of any of my Delphi 2010 projects, all JEDI units referenced in my project are recompiling although they have not been changed in any way. In fact, if I create a new project, drop a JEDI control on the form and compile, I see all JEDI dependencies getting recompiled. ...

Are there any good materials or examples on creating a custom Designer in the Delphi IDE

I am working on creating a custom form designer in the Delphi IDE. I'm trying to use the RegisterCustomModule, TBaseCustomModule, and ICustomModule functions, classes, and interfaces. My first question on this pointed me to the Delphi Developer's Handbook and the idea that I could even create a custom form designer. However, that book...

Delphi, read data from 3rd party data field

I am writing an application that needs to read a data field on another Delphi program and I do not have access to the source code of the 3rd party program. The data field contains the "foreign key" to a record I need to retrieve or create in my application. I would appreciate any links to knowledge or components that will help me with ...

What's the recommended implementation for hashing OLE Variants?

OLE Variants, as used by older versions of Visual Basic and pervasively in COM Automation, can store lots of different types: basic types like integers and floats, more complicated types like strings and arrays, and all the way up to IDispatch implementations and pointers in the form of ByRef variants. Variants are also weakly typed: th...

Need to send a pasting command from one program to another?

I am using one program to monitor the keyboard for input but would like to use that same program to populate the clipboard then automatically paste to the cursor location of the other program? Can this be done... I am using Delphi 4 Pro. ...

Detect click on URL in RichEdit

I am trying to update RichEdit so that it detects URL and enables clicking on it to open in the browser. Detecting URL is easy, I just use the following code from http://www.scalabium.com/faq/dct0146.htm mask := SendMessage(MNote.Handle, EM_GETEVENTMASK, 0, 0); SendMessage(MNote.Handle, EM_SETEVENTMASK, 0, mask or ENM_LINK); SendMes...

Best way of storing an "array of records" at design-time

I have a set of data that I need to store at design-time to construct the contents of a group of components at run-time. Something like this: type TVulnerabilityData = record Vulnerability: TVulnerability; Name: string; Description: string; ErrorMessage: string; end; What's the best way of storing this data at des...

how to save extracted icon in delphi

hi all I am trying to make icon extractor i am successful in getting icon to image1.picture.icon ,its looking same as orginal file icon, but when i am trying to save (iamge1.picture.icon.savetofile(c:\imahe.ico)) its not saving as it is ,it saving with less colur and looking ugly cany any one please tell me what i am doing wrong ?...

Where can I find "reference barcodes" to verify barcode library output?

This question is not about 'best' barcode library recommendation, we use various products on different platforms, and need a simple way to verify if a given barcode is correct (according to its specification). We have found cases where a barcode is rendered differently by different barcode libraries and free online barcode generators in...

How can I convert a WMF picture to GIF or PNG with Delphi?

Is there a way to convert a WMF picture to GIF or PNG with the Delphi 2009 (or newer) run time libraries? If not, which image conversion library would you recommend? ...

How to set entire HTML in MSHTML?

How to set entire HTML in MSHTML? I am trying using this assignment: (Document as IHTMLDocument3).documentElement.innerHTML := 'abc'; but I got the error: "Target element invalid for this operation" I tried also using (Document as IHTMLDocument2).write but this form only adds html into the body section, and I neet...

Incompatibilities between Indy 9 and Windows Server 2003?

I'm having a problem with a Delphi application on some Windows 2003 servers. It uses a webservice call to connect with another server and transmit data back and forth. As soon as the app gets to the Authenticate method, the app dies. The app has worked for years on previous boxes with Win Server 2003, but it doesn't on freshly built m...