Recent questions tagged delphi

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delphi - How do I make the "show/hide desktop icons" setting take effect?

The code below calls SHGetSetSettings function to hide desktop icons but it just unchecked "Show desktop icons" from the ... nil, nil); 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 - how do i update listview item index inside thread

i am creating project that allow multi users to login and add there details inside listview but i am stuck with problem , ... = bsClear; // User State Image if (Item.SubItems[5]...

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

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delphi - How do I open a file with the default text editor?

I want to open a *.conf file. I want to open this file with the standard Windows editor (e.g., notepad. ... happens. So what should I change? 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 you design FIFO queue with variable data size?

I'm just working on the FIFO queue (the simple one, just what's pushed first, pops at first) with the variable ... of stream) ? Thanks a lot 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 - Iterate SWbemObjectSet in Windows XP and Inno Setup

I have a problem with taking MAC-addresses list in Windows XP from Inno Setup installer. I'm trying to ... Has this problem some 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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delphi - Why do I get "403 Forbidden" when I connect to whatismyip.com?

With the following code, I get exception class EIdHTTPProtocolException with message 'HTTP/1.1 403 Forbidden'. Process ... .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 - How to convince the memory manager to release unused memory

In a recent post ( My program never releases the memory back. Why? ) I show that when using FastMM, the ... Won't they compete for RAM? 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 select <option> item by the "value" attribute in <select> drop-down list?

In my Delphi application I'm using a TWebBrowser control, where I have loaded an HTML document, containing a ... value attribute is thirdvalue ? 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 - Drop down menu for any TControl

Continue of this topic: Drop down menu for TButton I have wrote a generic code for DropDown memu with any ... controls? What am I missing? 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 populate a tree view based on a flat list with "levels"?

I have a list of objects populated from a third-party project file. The way this file was designed is so each ... populate this in a tree view? 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 I add support for actions in my component

What do I need to do for adding actions support to my component. It is a button component but I guess it ... information or how to will help. 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 - Does my variable naming convention have a name?

So I go by this Delphi naming scheme of arguments start with A, class vars start with F and local vars start ... not sure what it's called. 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 intercept (detect) a Paste command into a TMemo?

How to catch Paste command and change text of Clipboard before that text is pasted into a TMemo, but, after ... changing, 'Simple Question'. 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 - Finding common elements in two arrays

I've declared a type similar to the following. type TLikes = record Name : string[20]; favColours : array of ... the time to read the post. 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 - ODBC Excel Driver: Unexpected error from external database driver

Since the Windows update from October 10, the ODBC Excel drivers have stopped working. We get the following ... workaround? Thanks in advance. 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 - Obtaining address locations of an overload method

How do I get all the address locations for functions/procedures/methods that is overloaded? For example, Dialogs. ... for the two functions? 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 disable the scroll-into-view behavior of TScrollBox?

I have a TScrollBox that has a RichEdit that is bigger than the scrollbox, so both side scrollbars appear in the ... . How can I avoid that? 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 is my Component auto adding other units to the uses interface?

I have been writing some of my own custom components, some are simply derived from other components such as ... to be added with them. 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 - Conversion with StrToDateTime and TFormatSettings does not work

This code should work in Delphi XE2, but it gives "not a valid date and time" error in StrtoDateTime conversion: ... FmtStngs); end; Any hints? 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 - Embedding window into another process

I have read some posts here on StackOverflow, but none has worked for me. Here is the code I am using to ... method? Thank you for your time. 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 - Loosen "Local procedure/function assigned to procedure variable" restriction gracefully

Consider the following test-case: { CompilerVersion = 21 } procedure Global(); procedure Local(); begin end; ... to emit WARNING level message. 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 make TWebBrowser Zoom when using ctrl+mousewheel like Internet Explorer does?

According to http://www.rendelmann.info/blog/CommentView,guid,356fbe68-3ed6-4781-90a4-57070a0141da.aspx and http://msdn ... pvaIn, pvaOut); 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 - What is the best way to autostart an action after OnShow event?

I have a small application that most of the time have an action behind a Start-button that should be triggered ... ) then btnStart.Click; 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 - Indy 10 - IdSMTP.Connect raising "Could not load SSL library."

Here is my configuration: IdSMTP1.Host := 'smtp.gmail.com'; IdSMTP1.Port := 587 ... des_set_odd_parity des_set_key des_ecb_encrypt 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 - Getting application path in Firemonkey

So in VCL, one would use the following line of code to retrieve the applications path: ExtractFilePath(Application. ... an alternative to 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 get TextWidth of string (without Canvas)?

I would like to get text width of a string before an application starts. Everything works fine until Application. ... ); ACanvas.Free; 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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857 views

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delphi - How to find the unique serial number of a flash device?

I've found several snippets and .pas files that can detect when USB flash drives are inserted and removed. Some ... , my question is solved. 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 - What is a safe Maximum Stack Size or How to measure use of stack?

I have an app with a number of worker threads, one for each core. On a modern 8 core machine, I have ... measure how much stack is really used? See Question&Answers more detail:os...

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

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