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#include "ProcessUtils.h"
#include <Windows.h>
#include <tchar.h>
#include <vector>
// TODO
// Support .lnk files
namespace {
void Clear(SubProcessData* spd)
{
spd->hOutput = NULL;
spd->hInput = NULL;
spd->pi.hThread = NULL;
spd->pi.hProcess = NULL;
spd->hPC = NULL;
}
SubProcessData CreateSubProcess(LPCTSTR cmd, COORD size, HANDLE hInput, HANDLE hOutput, bool bUseConPty)
{
SubProcessData spd = {};
DWORD dwCreationFlags = EXTENDED_STARTUPINFO_PRESENT;
STARTUPINFOEX si = {};
std::vector<BYTE> attrList;
si.StartupInfo.cb = sizeof(si);
BOOL bInheritHandles = FALSE;
if (bUseConPty)
{
spd.hr = CreatePseudoConsole(
size,
hInput,
hOutput,
0,
&spd.hPC);
if (spd.hr != S_OK)
{
CleanupSubProcess(&spd);
Clear(&spd);
return spd;
}
SIZE_T size = 0;
if (InitializeProcThreadAttributeList(NULL, 1, 0, &size))
{
spd.hr = HRESULT_FROM_WIN32(GetLastError());
CleanupSubProcess(&spd);
Clear(&spd);
return spd;
}
attrList.resize(size);
si.lpAttributeList = reinterpret_cast<PPROC_THREAD_ATTRIBUTE_LIST>(attrList.data());
if (!InitializeProcThreadAttributeList(si.lpAttributeList, 1, 0, &size))
{
spd.hr = HRESULT_FROM_WIN32(GetLastError());
CleanupSubProcess(&spd);
Clear(&spd);
return spd;
}
if (!UpdateProcThreadAttribute(
si.lpAttributeList,
0,
PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE,
spd.hPC, sizeof(HPCON),
NULL,
NULL))
{
spd.hr = HRESULT_FROM_WIN32(GetLastError());
CleanupSubProcess(&spd);
Clear(&spd);
return spd;
}
}
else
{
si.StartupInfo.dwXSize = size.X;
si.StartupInfo.dwYSize = size.Y;
si.StartupInfo.dwFlags = STARTF_USESIZE | STARTF_USESTDHANDLES;
si.StartupInfo.hStdInput = hInput;
si.StartupInfo.hStdOutput = hOutput;
si.StartupInfo.hStdError = si.StartupInfo.hStdOutput;
dwCreationFlags |= CREATE_NO_WINDOW;
bInheritHandles = TRUE;
}
TCHAR localcmd[MAX_PATH];
_tcscpy_s(localcmd, cmd);
if (!CreateProcess(nullptr, localcmd, nullptr, nullptr, bInheritHandles, dwCreationFlags, nullptr, nullptr, &si.StartupInfo, &spd.pi))
{
spd.hr = HRESULT_FROM_WIN32(GetLastError());
CleanupSubProcess(&spd);
Clear(&spd);
return spd;
}
spd.hr = S_OK;
return spd;
}
}
SubProcessData CreateSubProcess(LPCTSTR cmd, COORD size, bool bUseConPty)
{
SubProcessData spd = {};
SECURITY_ATTRIBUTES sa = {};
sa.bInheritHandle = !bUseConPty;
HANDLE hReadPipeInput = NULL;
HANDLE hWritePipeInput = NULL;
if (spd.hr == S_OK && !CreatePipe(&hReadPipeInput, &hWritePipeInput, &sa, 0))
spd.hr = HRESULT_FROM_WIN32(GetLastError());
HANDLE hWritePipeOutput = NULL;
HANDLE hReadPipeOutput = NULL;
if (spd.hr == S_OK && !CreatePipe(&hReadPipeOutput, &hWritePipeOutput, &sa, 0))
spd.hr = HRESULT_FROM_WIN32(GetLastError());
if (spd.hr == S_OK)
spd = CreateSubProcess(cmd, size, hReadPipeInput, hWritePipeOutput, bUseConPty);
if (spd.hr == S_OK)
{
spd.hInput = hWritePipeInput;
spd.hOutput = hReadPipeOutput;
}
else
{
CloseHandle(hWritePipeInput);
CloseHandle(hReadPipeOutput);
}
CloseHandle(hReadPipeInput);
CloseHandle(hWritePipeOutput);
return spd;
}
void CleanupSubProcess(const SubProcessData* spd)
{
CloseHandle(spd->hOutput);
CloseHandle(spd->hInput);
TerminateProcess(spd->pi.hProcess, 0xFF);
CloseHandle(spd->pi.hThread);
CloseHandle(spd->pi.hProcess);
ClosePseudoConsole(spd->hPC);
}
UINT GetIcon(const SubProcessData* spd, HICON *phIconLarge, HICON *phIconSmall)
{
TCHAR exe[MAX_PATH];
DWORD exelen = ARRAYSIZE(exe);
QueryFullProcessImageName(spd->pi.hProcess, 0, exe, &exelen);
WORD iIcon = 0;
return ExtractIconEx(exe, 0, phIconLarge, phIconSmall, 1);
}
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