#include <windows.h>

int main(void)
{
	HANDLE hFile;
	FILETIME ftFileTime;
	SYSTEMTIME stFileTime;
	TCHAR strFileTime[1024];
	
	hFile = CreateFile(
		TEXT("C:\\MyFolder\\Homepage\\public_html\\C\\SetCreationTimeFile\\SetCreationTimeFile.txt"),
		GENERIC_WRITE,
		0,
		NULL,
		OPEN_EXISTING,
		FILE_ATTRIBUTE_NORMAL,
		NULL);
	if (hFile == INVALID_HANDLE_VALUE) {
		MessageBox(
			NULL , TEXT("ファイルが開けません") ,
			NULL , MB_OK
		);
		return 1;
	}
	GetSystemTime(&stFileTime);
	SystemTimeToFileTime(&stFileTime , &ftFileTime);
	SetFileTime(hFile, &ftFileTime, &ftFileTime, &ftFileTime);

	return 0;
}