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Snapshot.cpp
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Snapshot.cpp
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#include "pch.h"
#include "Snapshot.h"
Snapshot::Snapshot() noexcept
{
m_snapshot = CreateToolhelp32Snapshot(
TH32CS_SNAPPROCESS |
TH32CS_SNAPMODULE32 |
TH32CS_SNAPMODULE |
TH32CS_SNAPTHREAD, NULL);
}
Snapshot::~Snapshot() noexcept
{
CloseHandle(m_snapshot);
}
bool Snapshot::FindProcess(const std::wstring& wzName) noexcept
{
while (NextProcess())
{
if (_wcsicmp(m_process.szExeFile, wzName.c_str()) == 0)
{
return true;
}
}
return false;
}
bool Snapshot::FindFirstThread() noexcept
{
m_thread = {};
while (NextThread())
{
if (m_thread.th32OwnerProcessID == m_process.th32ProcessID)
return true;
}
m_thread = {};
return false;
}
bool Snapshot::NextProcess() noexcept
{
m_module = {};
m_thread = {};
if (m_process.dwSize == 0)
{
m_process.dwSize = sizeof(PROCESSENTRY32);
return !!Process32First(m_snapshot, &m_process);
}
else
{
m_process.dwSize = sizeof(PROCESSENTRY32);
return !!Process32Next(m_snapshot, &m_process);
}
}
bool Snapshot::NextModule() noexcept
{
if (m_module.dwSize == 0)
{
m_module.dwSize = sizeof(MODULEENTRY32);
return !!Module32First(m_snapshot, &m_module);
}
else
{
m_module.dwSize = sizeof(MODULEENTRY32);
return !!Module32Next(m_snapshot, &m_module);
}
}
bool Snapshot::NextThread() noexcept
{
if (m_thread.dwSize == 0)
{
m_thread.dwSize = sizeof(THREADENTRY32);
return !!Thread32First(m_snapshot, &m_thread);
}
else
{
m_thread.dwSize = sizeof(THREADENTRY32);
return !!Thread32Next(m_snapshot, &m_thread);
}
}