#include <string>
#include <iostream>
using namespace std;

void __stdcall ThreadFun1()
{
	printf("Hi This is my first thread.\n");
}
int main()
{

	ThreadFun1();

	////===========================GetCurrentProcess();=======================
	HANDLE h = GetCurrentProcess();
	SetPriorityClass(h, HIGH_PRIORITY_CLASS);
	printf("%x\n", GetPriorityClass(h));


	////============================SetPriorityClass();=======================
	STARTUPINFO Sinfo = { 0 };
	PROCESS_INFORMATION Pinfo = { 0 };

	CreateProcess(TEXT("C:\\Windows\\notepad.exe"), NULL, NULL, NULL, FALSE, NULL, NULL, NULL, &Sinfo, &Pinfo);

	DWORD Prior = GetPriorityClass(Pinfo.hProcess);          // pobieram prior procesu, na poczatku jest rowny 32 (czemu?)
	printf("PRIOR: %x\n", Prior);

	SetPriorityClass(Pinfo.hProcess, BELOW_NORMAL_PRIORITY_CLASS);  // ustawiam se taki prior, msdn mowi : 0x00004000

	Prior = GetPriorityClass(Pinfo.hProcess);                       // pobieram zowu, teraz jest 16384, czyli sie zgadza z szesnastkowym 0x00004000

	printf("PRIOR: %x\n", Prior);


	CloseHandle(Pinfo.hProcess);
	CloseHandle(Pinfo.hThread);


	////============================CREATE_THREAD()===========================
	printf("Entered In Main\n");
	HANDLE hThread;
	HANDLE hThread2;
	DWORD threadID;
	DWORD threadID2;
	//
	hThread = CreateThread(
		NULL, // security attributes ( default if NULL )
		0, // stack SIZE default if 0
		(LPTHREAD_START_ROUTINE)ThreadFun1, // Start Address
		NULL, // input data
		0, // creational flag ( start if  0 )
		&threadID); // thread ID
	SetThreadPriority(hThread, 1);
	int prior1 = GetThreadPriority(hThread);
	//

	hThread2 = CreateThread(
		NULL, // security attributes ( default if NULL )
		0, // stack SIZE default if 0
		(LPTHREAD_START_ROUTINE)ThreadFun1, // Start Address
		NULL, // input data
		0, // creational flag ( start if  0 )
		&threadID2); // thread ID
	SetThreadPriority(hThread2, 2);
	int prior2 = GetThreadPriority(hThread2);

	printf("Priorytet pierwszego watku: %d\n", prior1);
	printf("Priorytet drugiego watku: %d\n", prior2);
	printf("Main is exiting\n");
	//
	CloseHandle(hThread);
	CloseHandle(hThread2);
	//_getch();


	////============================CREATE_PROCESS()===========================
	STARTUPINFO si;
	PROCESS_INFORMATION pi;

	ZeroMemory(&si, sizeof(si));
	si.cb = sizeof(si);
	ZeroMemory(&pi, sizeof(pi));

	//// Start the child process.
	if (!CreateProcess(
		TEXT("c:\\WINDOWS\\system32\\calc.exe"),	// No module name (use command line)
		NULL,			// Command line
		NULL,           // Process handle not inheritable
		NULL,           // Thread handle not inheritable
		FALSE,          // Set handle inheritance to FALSE
		0,              // No creation flags
		NULL,           // Use parent's environment block
		NULL,           // Use parent's starting directory
		&si,            // Pointer to STARTUPINFO structure
		&pi)           // Pointer to PROCESS_INFORMATION structure
		)

		printf("CreateProcess failed (%d).\n", GetLastError());
		//return;
	//}
	//// Wait until child process exits.
	WaitForSingleObject(pi.hProcess, INFINITE);
	//// Close process and thread handles.
	CloseHandle(pi.hProcess);
	CloseHandle(pi.hThread);
}