delphi-xe

问题 I apologize for my English, it's not good, but I hope you will understand my question. I have problem with usage of WinAPI function StgOpenStorageEx . I need to get file's summary information. I found some solutions, but in all of them I need to use StgOpenStorageEx . Because it is not in standard modules, I declared it myself as exported from ole32.dll like this function StgOpenStorageEx ( const pwcsName : POleStr; //Pointer to the path of the //file containing storage object grfMode :

问题 Hi, EveryBody! I'm new to programming! I need your help plz. I've 2 project: 1. Project Login page. Using App Tethering and 2 buttons(Connect button =>connects to the server AND Login button=>Sends request to the Server to check Valid username and password). 2. Project Server page. In a Server Page using App tethering and FDQuery +( SQLite database test.db). When Client Connects to the Server and sends request to the Server to check valid username and password it gives wrong result. plz help

问题 Overview Not entirely sure if the question is worded appropriately or not, but I previously asked this question which relates to this one: How do I correctly implement a Set in a class as a property? I like to keep code as short, minimal and readible as possible, and this is where I think some code could be written better but I am running into problems. An example first of 2 ways to read the value in a Set: The long way: if (Delphi1 in IDECompatibility) then CheckListBox1.Checked[0] := True;

问题 I added a code that was published 3 years later than original plugin, but it still returns error... Code is straight forward imho ... but still I most likely miss some aspect ... See this code: { nsScreenshot NSIS Plugin (c) 2003: Leon Zandman (leon@wirwar.com) Re-compiled by: Linards Liepins (linards.liepins@gmail.com) Code by: http://www.delphitricks.com/source-code/forms/make_a_desktop_screenshot.html (e) 2012. } library nsScreenshot; uses nsis in './nsis.pas', Windows, Jpeg, graphics,

问题 I added a code that was published 3 years later than original plugin, but it still returns error... Code is straight forward imho ... but still I most likely miss some aspect ... See this code: { nsScreenshot NSIS Plugin (c) 2003: Leon Zandman (leon@wirwar.com) Re-compiled by: Linards Liepins (linards.liepins@gmail.com) Code by: http://www.delphitricks.com/source-code/forms/make_a_desktop_screenshot.html (e) 2012. } library nsScreenshot; uses nsis in './nsis.pas', Windows, Jpeg, graphics,

问题 I have a record type with methods, representing an specific hardware measurement type, read from the instrument as a string. The record contains implicit coversion to (and from) a string. If I cast a string as a record type, it seems to work, but is this safe? That is, does casting a string to a record with implicit string conversion call the implicit conversion as per assigning a temporary value? var a: MeasurementRecord; // record type with implicit string conversion & decode methods b:

问题 I'm getting access violations from the unit DBXCommon.pas (in Delphi XE). When I look at the code I see things like the following (at the exclamation marks): function TDBXConnectionFactory.GetConnection(const DBXContext: TDBXContext; const ConnectionProperties: TDBXProperties): TDBXConnection; var ConnectionBuilder: TDBXConnectionBuilder; DelegatePath: TDBXDelegateItem; Connection: TDBXConnection; CombinedProperties: TDBXProperties; begin //... ConnectionBuilder := TDBXConnectionBuilder

问题 I have Delphi XE. I try to set Request.Range of idHttp but I cannot do this. Delphi doesn't allow me to do this neither at design time nor at run time. E.g. I set '6000-' in a design time -> a property gets empty all time. I do (in a thread): Downloader.Request.Range:=(IntToStr(DFileStream.Position) + '-'); synchronize(procedure begin showmessage(Downloader.Request.Range) end); showmessage(Downloader.Request.Range) shows me nothing (an empty string). I checked a request in HTTPAnalyzer -> my

问题 I'm looking for a way of scanning all loaded classes for classes which contain a custom attribute, if possible, without using RegisterClass(). 回答1: at first you have to create TRttiContext , then get all loaded classes using getTypes . after that you can filter types by TypeKind = tkClass ; next step is to enumerate attributes and check if it has your attribute; attribute and test-class delcaration: unit Unit3; interface type TMyAttribute = class(TCustomAttribute) end; [TMyAttribute] TTest =

问题 I have a tcp/ip Datasnap -XE Server that uses a PC1 and Zlib filter On the Client both of these filters are defined in DataSnap TSqlConnection When the client connects to the server I get a "Connection Closed Gracefully” error message If I only use the PC1 filter on its own - there is no problem If I only use the Zlib filter on its own - there is no problem Any Ideas on how I can get both filters working at the same time? 回答1: You need to deploy the libeay32.dll and ssleay32.dll with your