Recent questions tagged Delphi

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Since I just asked this question and got a very useful reply I wonder if anyone has already the code for using ... be great for many users. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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820 views

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delphi - "Control '' has no parent window" error

I get this error when I drop my control on a form. The error appears here: TAssociateFileExt = class(TGroupBox) ... line (clientheight:= 90); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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926 views

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delphi - XE4 ( Firemonkey + iOS Static Library) , Pascal conversion from Objective C Class?

How to Conversion ? (Objective C Class -> Delphi XE4 ) and How to use Objective-C Class in static Library from ... ? // end; Thanks Simon,Choi See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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delphi - Enumerate TWebRequest HTTP header fields

is it possible to dump all the header fields of a TWebRequest (and TWebResponse) object? At the moment I ... HTTP requests/responses to console. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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852 views

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delphi - How to recompile a specific unit from the VCL?

I want to apply a fix from QC to a Delphi 2009 unit (DBClient as it happens). I know I need to copy ... favour of the DCU that already exists? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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delphi - How to check if an OLEDB driver is installed on the system?

How can I make sure that a certain OLEDB driver is installed when I start my application? I use ADO from Delphi and ... but I haven't found it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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694 views

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delphi - How To Zoom with keeping aspect ratio correctly

Well this is my goal. Use left mouse button to scroll the image, right mouse button to choose zoom rectangle ... .Height); Invalidate; end; procedure TZImage.SetBitmap(b:TBit...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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762 views

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delphi - Why don't child controls of a TStringGrid work properly?

I am placing checkboxes (TCheckBox) in a string grid (TStringGrid) in the first column. The checkboxes show fine, ... . How to overcome this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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765 views

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delphi - What is the canonical way to write a hasher function for TEqualityComparer.Construct?

Consider the following record: TMyRecord = record b: Boolean; // 3 bytes of padding in here with default record ... to the record's padding. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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988 views

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delphi - Determine the parent process of the current app

I wrote this utility (exe) which can be called from within this host application. And I'd prefer it that ... utility? Thanks for the replies. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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794 views

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delphi - Masking floating point exceptions with Set8087CW, SetMXCSR and TWebBrowser

As I am receiving "Floating point division by zero" exception when using TWebBrowser and TEmbeddedWB from time to ... point division by zero. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Randomize StringList

How can I randomize the Strings in the StringList similarly how this online tool works. If anyone is ... textmechanic.co/Randomize-List.html See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Fatal Error: Cannot create output file "project1.exe"

So for some time now I keep having this problem: on windows 7 (64bit), with Delphi 7 and Delphi XE2, if from ... what can I do to fix it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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748 views

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delphi - Conditional behaviour based on concrete type for generic class

Since my question from yesterday was perhaps not completely clear and I did not get the answer I wanted, I will try ... begin Result := 0; end; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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975 views

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delphi - Design-time package fails to build - File not found: 'Graphics.dcu'

In Delphi XE2, I have a single control in a pair of design/run time packages. Originally, everything was working ... to post the entire thing. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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898 views

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delphi - How do I avoid the OnDocumentComplete event for embedded iframe elements?

I want to prevent iframe elements from triggering the OnDocumentComplete event every time. For example, a page ... in TWebBrowser control. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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744 views

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delphi - How to Read/Write Windows 7 Library Locations?

Intro In Windows 7 you have some special folders for documents, pictures and music etc called Libraries. If you are ... I cannot seem to find! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

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delphi non visual component image

I am building a delphi non-visual component. How do I set the image I want it to have in the IDE? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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918 views

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delphi - Anchors := [akCenter]?

How can I center a control within its parent? And how to keep it centered when the parent resizes? I know I ... . Is there an akCenter anchor? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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779 views

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delphi - Parent window freezes when child window freezes altough it's from another process

Disclaimer: I'm not familiar with the Win32 API, especially how windows work. I'd like to make the window ... when the child window freezes? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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785 views

1 answer

delphi - Is it possible to access a 64-bit dll from a 32-bit application?

I have a Delphi application similar to Taskbar Shuffle that includes a hook dll. EDIT: This hook DLL communicates ... one of the answers below. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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delphi - Is there way of copying the whole array into another array? (Other than using a For-loop)

Is there way of copying the whole array into another array? Other than using a for-loop. Does the move or copy ... I stick to the for-loop? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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830 views

1 answer

delphi - Proxy server using Indy

I'm new to Indy and I want to build a simple proxy-server with it. This is a quite big library, and ... m using Indy that ships with Delphi2010. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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962 views

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delphi - How to hide the inherited TObject constructor while the class has overloaded ones?

Take a look at this class: TTest = class(TObject) public constructor Create(A:Integer);overload; constructor ... with hiding this constructor? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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759 views

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delphi - Why is CharInSet faster than Case statement?

I'm perplexed. At CodeRage today, Marco Cantu said that CharInSet was slow and I should try a Case statement ... concludes that it does not. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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830 views

1 answer

delphi - How to achieve smaller size of the executable?

Very recently I have come back to Delphi after a long pause and written a rather straightforward utility app my client ... to 300-400k or less? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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810 views

1 answer

delphi - How to save and restore a form?

So, I have a form with a few dozen controls and someone would like to save and later restore their contents and ... read a .INI? Something else? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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896 views

1 answer

delphi - How to use a dll outside of the system path

I made an application that uses the openssl dlls (libeay32.dll and ssleay32.dll). It is indy using them, ... "temporarly registering the dlls") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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