C 取得正在執行的程式的數量

[dllimport("user32", setlasterror = true)]

public static extern int getwindowtext(intptr hwnd, stringbuilder lpstring, int nmaxcount);
[dllimport("user32.dll")]
extern static intptr getforegroundwindow();
[dllimport("user32")]
private extern static int getwindow(int hwnd, int wcmd);
[dllimport("user32")]
private extern static int getwindowlonga(int hwnd, int windx);
[dllimport("user32", charset = charset.auto)]
private extern static int getwindowtextlength(intptr hwnd);
[dllimport("user32.dll")]
private static extern bool getwindowtext(int hwnd, stringbuilder title, int maxbufsize);
private delegate bool wndenumproc(intptr hwnd, int lparam);
[dllimport("user32.dll")]
private static extern bool enumwindows(wndenumproc lpenumfunc, int lparam);
[dllimport("user32.dll")]
private static extern int getwindowtextw(intptr hwnd, [marshalas(unmanagedtype.lpwstr)]stringbuilder lpstring, int nmaxcount);
[dllimport("user32.dll")]
private static extern int getclassnamew(intptr hwnd, [marshalas(unmanagedtype.lpwstr)]stringbuilder lpstring, int nmaxcount);
[dllimport("user32")]
public extern static int getwindowthreadprocessid(intptr hwnd, ref int lpdwprocessid);
public struct windowinfo
private const int gw_hwndfirst = 0;
private const int gw_hwndnext = 2;
private const int gwl_style = (-16);
private const int ws_visible = 268435456;
private const int ws_border = 8388608;
private static string getmodulenamefromhandle(intptr hwnd)
//返回包含searchstr的程序的數量
try}
}hwcurr = getwindow(hwcurr, gw_hwndnext);}}
catch (exception ex)
finally
}

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