dummzeuch

The filter for the Explicit* properties was contributed by Achim Kalwa and I have never looked closely at the code, so I don't know how it works and whether it might allow filtering other properties.

Are you aware that Indy also uses DLLs for SSL? I don't know of any solution that does not require DLLs.

I usually don't prepare anything. I just run the update installer and expect it to simply work (which it mostly does). Having said that, I don't use GetIt to install anything apart from patches and I always compile components and - if possible - plugins from source, so the possibilities for the installer to mess up are limited. Also, I am not using the current Delphi version for production work (apart from the obvious maintenance for GExperts and a few other version specific tools), so if an update goes wrong, it won't be a catastrophe, unless it breaks an older Delphi version too.

I have got a need to execute some simple Perl scripts on a Ubuntu Linux server on the LAN (no Internet involved). So far, I am executing them via Putty in an ssh session that shows a small menu written in Perl. But that's cumbersome and I would prefer to have a Delphi client that requests a service to execute them. As these commands require root privileges (*1) security is a big deal, so at least https and basic authentication should be used. I could probably install Apache or a different web server and execute these commands via cgi, but this feels way overblown. Some kind of REST API is what I am looking for, but I don't have any experience with the server side of that. Any suggestions? Just in case anybody wants to suggest that: We don't have a Delph license that allows writing Linux programs. (*1: It's about creating zfs datasets and snapshots and changing their mount points.)

Unfortunately the included dll did not work for me. I googled the error message (which I no longer recall) and found the advice to switch to the dlls from the PHP project. Those dlls worked fine with the same code and the same ssh server.

That's so obvious that I just asked myself why I didn't think of it. So, thanks a lot! I could either call plink.exe (from Putty) or even easier, use libssh2 and the pascal bindings from @pyscripter. In fact I just got the sources, downloaded the libssh2 and openssl dlls from the PHP project page and changed the SshExec demo to bypass the password prompt and call a test script as root. Worked fine. And as a plus I don't even have to install anything on the server, just use the existing ssh server, create some scripts and allow the appropriate users to call them as root without password in the sudoers configuration.

Sorry, my fault for not asking properly: I am not looking for a tool to replace Putty + the menu or the Linux shell, I am looking for a tool that allows a Delphi program to initiate starting those scripts, e.g. via a REST service.

Wow, that's quite a list of fixes.

1.8% rating is far from being popular. It's just marginally better than the 1.64% of SQL on place 11. Compare that to the ratings of the top 3! That's one of the problems with this "index". The differences between the rankings even some in the top 10 are lower than the error margins of the data source.

The languages at the top of that list have changed quite a bit since the last time I looked. Probably means that was a long time ago. I'm sure python was not yet in the top ten back then.

I usually prefix functions like this with "Try", so instead of function GetTheValue(parameters ...): SomeType; it's function TryGetTheValue(parameters ...; out Value: SomeType): Boolean;

A github repository containing 3 zip files was not quite what I was expecting. For those who don't read Russian, here is the Google translate link. https://kuzduk-ru.translate.goog/kuss/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp

They probably thought that 2047 was "enough for everybody" and didn't think of it as a limit, so they didn't impose a limit on WriteString either. But we can only guess. OTOH nobody(*1) uses TIniFile any more but TMemIniFile because it overcomes all the limitations of Get/SetPrivateProfileString so that's a moot point. (*1 for suitable definitions of nobody )

Just in case anybody else is wondering: This works since Delphi 2010 which was the version that first included the unit rtti. Older Delphi versions did not support RTTI for records.

"Abort" is a popular name for procedures and methods, that's why it came to mind. I had to qualify it several times in my code because there was an ambiguity. I'm too lazy to use that qualifier without a good reason. Uwe's answer looks like a good solution for these cases. I hope I remember it the next time this comes up.

You can have a lot of fun when starting to use namespaces. This compiles fine ... unit bla; uses SysUtils; interface implementation procedure Test; begin SysUtils.Abort; end; ... until you add the namespace to the unit name ... unit bla; uses System.SysUtils; interface implementation procedure Test; begin SysUtils.Abort; end; ... but do you really want to write System.SysUtils.Abort ? This is just an example. You don't of course need to qualify Abort, but if there are name clashes in different units you have to, or you can rely on the order of the units in the uses clause, which I think is a bad idea.

Actually, the concept of namespaces was introduced with Delphi 2005, but the RTL and VCL started using them much later. A quick search in my installations found vcl.controls.pas appearing in Delphi XE2, before that it was just controls.pas

YMMD: I just imagined the developers singing while running the signing process.

You could have different desktops for these "modes", but they won't switch automatically either. Hm, maybe you could assign keyboard shortcuts to these menu entries using GExperts, but I'm not sure this is possible. Edit: It isn't. The menu entries for the configured desktops are added dynamically and don't show up in the GExperts IDE Menu Shortcuts expert. So you can't assign a keyboard shortcut to them. (At least not this way).

I have just built an installer for GExperts 1.3.24 Beta1 for Delphi 12. Note the word “Beta” in the release name! We are one step up from Alpha, there are still many bugs, but overall it seems to be stable. Most of the bugs manifest themselves as display glitches on high DPI monitors. Continue reading in the blog post

The current source code compiles fine in Delphi 12.2 and I haven't noticed any new bugs. The Installer for Delphi 12.1 works for Delphi 12.2. I haven't heard of any problems there either.

The Win32 Delphi 2007 program below sets the PEFlag for IMAGE_FILE_LARGE_ADDRESS_AWARE, so I would expect it to have 3 GB of memory available. But it writes: TotalVirtual 2147352576 Bytes 2,000 GiB AvailVirtual 2093465600 Bytes 1,950 GiB So why does it say there are only 2 GB? The OS is Windows 10 pro 64 Bit with 16 GB of physical memory (from which a lot is available). I could have sworn that this has worked before. Edit: Duh! I forgot an 'or' between 'IMAGE_FILE_NET_RUN_FROM_SWAP' and 'IMAGE_FILE_LARGE_ADDRESS_AWARE' program Project1; {$APPTYPE CONSOLE} uses Windows, SysUtils; {$SETPEFLAGS IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP or IMAGE_FILE_NET_RUN_FROM_SWAP IMAGE_FILE_LARGE_ADDRESS_AWARE} procedure GetProcedureAddress(var P: Pointer; const ModuleName, ProcName: string); var ModuleHandle: HMODULE; begin if not Assigned(P) then begin ModuleHandle := GetModuleHandle(PChar(ModuleName)); if ModuleHandle = 0 then begin ModuleHandle := SafeLoadLibrary(PChar(ModuleName)); if ModuleHandle = 0 then raise Exception.CreateFmt('Library %s not found', [ModuleName]); end; P := GetProcAddress(ModuleHandle, PChar(ProcName)); if not Assigned(P) then raise Exception.CreateFmt('Function %s not found in library %s', [ProcName, ModuleName]); end; end; type _MEMORYSTATUSEX = packed record dwLength: DWORD; dwMemoryLoad: DWORD; ullTotalPhys: Int64; ullAvailPhys: Int64; ullTotalPageFile: Int64; ullAvailPageFile: Int64; ullTotalVirtual: Int64; ullAvailVirtual: Int64; ullAvailExtendedVirtual: Int64; end; {$EXTERNALSYM _MEMORYSTATUSEX} MEMORYSTATUSEX = _MEMORYSTATUSEX; {$EXTERNALSYM MEMORYSTATUSEX} LPMEMORYSTATUSEX = ^_MEMORYSTATUSEX; {$EXTERNALSYM LPMEMORYSTATUSEX} TMemoryStatusEx = _MEMORYSTATUSEX; type TGlobalMemoryStatusEx = function(out lpBuffer: TMemoryStatusEx): BOOL; stdcall; var _GlobalMemoryStatusEx: TGlobalMemoryStatusEx = nil; function GlobalMemoryStatusEx(out lpBuffer: TMemoryStatusEx): BOOL; stdcall; begin GetProcedureAddress(Pointer(@_GlobalMemoryStatusEx), kernel32, 'GlobalMemoryStatusEx'); Result := _GlobalMemoryStatusEx(lpBuffer); end; function GetTotalMemInfo: string; var MemStatusEx: TMemoryStatusEx; begin MemStatusEx.dwLength := SizeOf(MemStatusEx); if GlobalMemoryStatusEx(MemStatusEx) then begin Result := Format('TotalVirtual %d Bytes %.3f GiB', [MemStatusEx.ullTotalVirtual, MemStatusEx.ullTotalVirtual / 1024 / 1024 / 1024]); Result := Result + #13#10 + Format('AvailVirtual %d Bytes %.3f GiB', [MemStatusEx.ullAvailVirtual, MemStatusEx.ullAvailVirtual / 1024 / 1024 / 1024]); end else begin Result := 'GlobalMemoryStatusEx call failed'; end; end; begin try WriteLn(GetTotalMemInfo); Readln; except on E: Exception do WriteLn(E.ClassName, ': ', E.Message); end; end.

I got it from some random 😉 post on StackOverflow (I could not find it on any Microsoft site)

Just in case anybody is still reading: I found some code in my program that didn't work once the 2 GB limit was reached. "Fortunately" it was where a DLL was loaded into memory near the start of the execution so it never happened until I configured Windows to start allocating memory from top using the registry: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Memory Management AllocationPreference= 0x100000 Then all of a sudden it crashed. I fixed this problem now (I hope). It was in dzlib library, unit u_dzResourceDllLoader, btw. so if somebody else is actually using that library, you might want to update.

It doesn't really make much sense to use the old Delphi 12.1 bpls with programs compiled in Delphi 12.2.