CODEWITHSUNDEEP
winapi
anywayName
anywayName

Reputation: 23

Is there any Win32 API to get the total number of running processes on Windows 10?

Right now, I use CreateToolhelp32Snapshot() to calculate the number of running processes by traversing a snapshot of all processes. Is there any API to get the number directly, instead of traversing?

Upvotes: 0

Views: 695

Answers (3)

Mick
Mick

Reputation: 1

I was looking into this recently and found GetPerformanceInfo which fills in the PERFORMANCE_INFORMATION struct. The total process count is written to the ProcessCount member.

PERFORMANCE_INFORMATION performanceInfo;
GetPerformanceInfo(&performanceInfo, sizeof(performanceInfo);
printf("%d processes running", performanceInfo.ProcessCount);

I'm not sure what the performance difference is between this function and EnumProcesses as suggested by others though.

Upvotes: 0

Jeaninez - MSFT
Jeaninez - MSFT

Reputation: 4017

As far as I'm concerned, there is no proper API to get the numbers directly, instead of traversing.

For more details to get the list of running processes, I suggest you could refer to the example:

Taking a Snapshot and Viewing Processes

Upvotes: 0

Anders
Anders

Reputation: 101646

EnumProcesses and divide by 4. Internally this calls the NT API and traverses last time I looked but that was a long time ago...

Upvotes: 1

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