winapi, dll

[Imperatorn]

On Thursday, 15 October 2020 at 20:13:37 UTC, Atmosfear wrote:
> On Thursday, 15 October 2020 at 16:32:06 UTC, Imperatorn wrote:
>> On Thursday, 15 October 2020 at 12:45:42 UTC, Atmosfear wrote:
>>> I didn't find how to call the queryperformancecounter 
>>> function. I tried this. Returns errors, doesn't know what 
>>> BOOL and LARGE_INTEGER are.
>>>
>>> import core.sys.windows.windows;
>>> import core.sys.windows.w32api;
>>> import core.sys.windows.winbase;
>>> pragma(lib, "kernel32");
>>> extern (Windows)
>>> {
>>>     BOOL QueryPerformanceCounter(LARGE_INTEGER 
>>> *lpPerformanceCount);
>>> }
>>> void main()
>>> {}
>>
>> It's already defined. Just use QueryPerformanceCounter, (no 
>> extern).
>
> I'm a newby. Can you show me an example? In which module is it?

I see. What Editor/IDE are you using btw?

If you use Visual Studio 2019 with the VisualD extension or 
Visual Studio Code with the D Programming Language (code-d) 
extension you can get some nice help with these kinds of things.

To the question, try this:

import std.stdio;

import core.sys.windows.winbase;
import core.sys.windows.windef;
import core.sys.windows.windows;

void main()
{
     LARGE_INTEGER li;

     BOOL b = QueryPerformanceCounter(&li);

     //Don't know what you're after. Defined in winnt
     writeln(li.QuadPart);

     readln();
}