Thread overview
Is there a way to work with processes in Windows without extern(c)?
5 days ago
dog2002
5 days ago
Dennis
5 days ago
dog2002
5 days ago
I need to get a list of processes in Windows (and their pid). I could use extern(c) and Process Walking (Process32First, Process32Next), but maybe there is a way to get the list by means of D?
5 days ago
On Wednesday, 13 January 2021 at 14:04:52 UTC, dog2002 wrote:
> I could use extern(c) and Process Walking (Process32First, Process32Next), but maybe there is a way to get the list by means of D?

I don't think this is part of the standard library.
Here's a piece of code I wrote a while ago if that's useful:

```
pragma(lib, "Kernel32.lib");

/**
 * Get a list of tuples for each currently running process, containing name and id
 * Returns:
 *   array of (name, id) tuples
 */
auto getProcessList() @system {
	import core.sys.windows.tlhelp32: CreateToolhelp32Snapshot, TH32CS_SNAPPROCESS,
		Process32First, Process32Next, PROCESSENTRY32;
	import core.sys.windows.windows: HANDLE, INVALID_HANDLE_VALUE, CloseHandle;

	import std.typecons: Tuple, tuple;
	import std.string: fromStringz;
	import std.conv: to;

	HANDLE hProcessSnap;
	PROCESSENTRY32 pe32;
	hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	scope(exit) CloseHandle(hProcessSnap);

	alias restype = Tuple!(string, "name", int, "id");
	restype[] result = [];

	if (hProcessSnap != INVALID_HANDLE_VALUE) {
		pe32.dwSize = PROCESSENTRY32.sizeof;
		for (auto notAtEnd = Process32First(hProcessSnap, &pe32);
			notAtEnd;
			notAtEnd = Process32Next(hProcessSnap, &pe32)
		) {
			string processName = pe32.szExeFile[].ptr.fromStringz.to!string;
			result ~= restype(processName, pe32.th32ProcessID);
		}
	}

	return result;
}
```
5 days ago
On Wednesday, 13 January 2021 at 15:11:40 UTC, Dennis wrote:
> On Wednesday, 13 January 2021 at 14:04:52 UTC, dog2002 wrote:
>> [...]
>
> I don't think this is part of the standard library.
> Here's a piece of code I wrote a while ago if that's useful:
>
> [...]

Thank you so much!