Recent questions tagged delphi

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delphi - Record video from camera on Android to mp4

There seems to be TVideoCaptureDevice in FireMonkey (Delphi XE6), but on official documentation, capturing process ends ... find any answer... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to patch a method in Classes.pas

I need to patch a method in Classes.pas (TReader.ReadString - I want to force it to use a specified codepage, ... to patch a method at runtime? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - What is the difference between WideChar and AnsiChar?

I'm upgrading some ancient (from 2003) Delphi code to Delphi Architect XE and I'm running into a few problems. I ... to use or how to fix this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Why are my units "compiled with a different version" of my own files?

I'm building a program that uses plugins. Unfortunately, the plugin framework's dynamic linking forces the RTL ... generics problems fixed soon. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Adding a calculated field to a Query at run time

I'm getting data using a query in Delphi, and would like to add a calculated field to the query before it runs. ... fields I'm using as well? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to save a file on Android? (Firemonkey)

How can I save a file locally on an Android device, using Delphi (XE5, Firemonkey)? Something as simple as Memo. ... .txt". Not a directory." See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to check a DLL if a function exists?

I'm working on something which dynamically loads specially formulated DLL's. I need to be able to check the DLL ... finally L.Free; end; end; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Best Icon size for displaying in the tray

I am working on a Delphi program which will display an icon on the "tray". I am doing it "the ... tray using Shell_NotifyIcon from a ListImage? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - When does a ShortCut fire?

Yesterday I discovered a situation wherein a keyboard ShortCut did not fire when I was expecting it to. The specific ... or do they not fire? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to view output of OutputDebugString?

I want to use OutputDebugString() in my application and then have the option to show it in a separate viewer ... solution. Is there a solution? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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964 views

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delphi - How to hide an application from taskbar in Windows 7?

I would like to hide an application from the Windows 7 taskbar. I want to make something like a toolbar on ... could prevent it from working? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How can I detect that a TadoConnection lost the communication with the server?

I need to detect when a TAdoConnection component has lost the connection with the server. I've tried using the ... that the connection was lost? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - usage of property vs getters/setters in business classes

When dealing with buisness classes, like the typical Customer and Employee classes, is it better to use ... with parameterless methods)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Converting UnicodeString to AnsiString

In the olden times, i had a function that would convert a WideString to an AnsiString of the specified code-page: ... the VCL will fall in line. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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762 views

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delphi - Some XE2 Programs Don't Show new executable Icons In Windows Explorer

I have several programs written in Delphi XE2 that were converted from Delphi 2005, which under Windows 7 would ... have any thoughts on this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to see progress of query execution during handle?

I used the following code in delphi for handle : procedure TForm1.ADOQuery1FetchProgress(DataSet: TCustomADODataSet; ... i represented you? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How do Integer flags work?

I do not understand how flags work and would appreciate some help and a link to a tutorial to try and understand ... I need to make this work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Error on LoadURL with TChromium

I found the brilliant Delphi Chromium project for embedding Chrome in a Delphi form. It works well in Delphi7 after ... anyone got this to work? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Simple TListView OwnerDraw Text Font Size and Color example?

I am trying to owner draw a List View control in report-mode with 4 columns, using OnCustomDrawItem. When I try to ... [fsBold]; // WORKS! end; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - Transparent Png to TBitmap32

I have a png that i would like to load in a TBitmap32. After I load the bitmap I call: Bitmap.DrawMode := ... . And this is the actual image: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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863 views

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delphi - TWebBrowser crashes with embedded Youtube clips

Here is my code: type TForm1 = class(TForm) WebBrowser1: TWebBrowser; Button1: TButton; Button2: TButton; ... my application ever since. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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868 views

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delphi - How to get the Process Environment Block (PEB) from extern process?

I want to get the PEB from the "notepad.exe" process. Does someone know how to do it? ... with EnumProcessModules or CreateToolhelp32Snapshot. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How to load a small system icon?

I need to display 16x16 pixel icons for error/warning/information. Unfortunately both LoadIcon(0, IDI_*) and ... component if that matters. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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926 views

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delphi - Disabling progress bar animation on Vista Aero

I'm using a Delphi 2009 VCL TProgressBar as a kind of "empty/full" gauge. On Vista, with Aero theme ... standard windows progress bar control? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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delphi - How can I refer to a control whose name is determined at runtime?

As a kind of self-study exercise, I've made a form which contains six panels in a 2x3 rectangle and I ... I hope the code explains something. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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806 views

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delphi - How can I increase the size of the string that an external debugger visualizer can display?

I am once again writing an external debugger visualizer, and am running into a wall. There appears to be ... debugger visualizer can display? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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delphi - Convert BitMap to string without line breaks?

Somewhere I found this code to convert a BitMap to a string: function Base64FromBitmap(Bitmap: TBitmap): string; ... line without line breaks? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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803 views

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delphi - Apply Windows Theme to Office Com add-in

For ages, Delphi has supported the Enable runtime themes switch on the Application Settings tab. However, this ... solutions to this problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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