mirror of
https://github.com/chibicitiberiu/rainmeter-studio.git
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125 lines
3.2 KiB
C++
125 lines
3.2 KiB
C++
/*
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Copyright (C) 2011 Birunthan Mohanathas
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <windows.h>
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#include <Psapi.h>
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#include <algorithm>
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#include <vector>
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#include "../../Library/RawString.h"
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#include "../../Library/Export.h" // Rainmeter's exported functions
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#include "../../Library/DisableThreadLibraryCalls.h" // contains DllMain entry point
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struct MeasureData
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{
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CRawString processName;
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bool isRunning;
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MeasureData() : isRunning(false) {}
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};
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static UINT g_UpdateCount = 0;
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static std::vector<MeasureData*> g_Measures;
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void CheckProcesses();
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PLUGIN_EXPORT void Initialize(void** data)
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{
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MeasureData* measure = new MeasureData;
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g_Measures.push_back(measure);
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*data = measure;
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}
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PLUGIN_EXPORT void Reload(void* data, void* rm, double* maxValue)
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{
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MeasureData* measure = (MeasureData*)data;
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LPCWSTR value = RmReadString(rm, L"ProcessName", L"");
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measure->processName = value;
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}
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PLUGIN_EXPORT double Update(void* data)
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{
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MeasureData* measure = (MeasureData*)data;
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// Updates the measure only once per combined updates of all measures
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++g_UpdateCount;
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if (g_UpdateCount >= g_Measures.size())
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{
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CheckProcesses();
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g_UpdateCount = 0;
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}
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return measure->isRunning ? 1.0 : -1.0;
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}
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PLUGIN_EXPORT void Finalize(void* data)
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{
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MeasureData* measure = (MeasureData*)data;
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std::vector<MeasureData*>::iterator iter = std::find(g_Measures.begin(), g_Measures.end(), measure);
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g_Measures.erase(iter);
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delete measure;
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}
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void CheckProcesses()
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{
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// Set everything to false
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std::vector<MeasureData*>::iterator iter = g_Measures.begin();
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for ( ; iter != g_Measures.end(); ++iter)
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{
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(*iter)->isRunning = false;
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}
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int bufSize = 256;
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DWORD* pids = new DWORD[bufSize];
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DWORD bytesReturned = 0;
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while (!EnumProcesses(pids, bufSize * sizeof(DWORD), &bytesReturned) &&
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bytesReturned == bufSize * sizeof(DWORD))
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{
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delete [] pids;
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bufSize *= 2;
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pids = new DWORD[bufSize];
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}
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for (UINT i = 0, isize = bytesReturned / sizeof(DWORD); i < isize; ++i)
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{
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const DWORD flags = PROCESS_QUERY_INFORMATION | PROCESS_VM_READ;
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HANDLE hProcess = OpenProcess(flags, FALSE, pids[i]);
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if (hProcess)
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{
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WCHAR buffer[MAX_PATH];
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if (GetModuleBaseName(hProcess, NULL, buffer, _countof(buffer)))
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{
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iter = g_Measures.begin();
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for ( ; iter != g_Measures.end(); ++iter)
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{
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if (_wcsicmp(buffer, (*iter)->processName.c_str()) == 0)
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{
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(*iter)->isRunning = true;
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}
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}
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}
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CloseHandle(hProcess);
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}
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}
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delete [] pids;
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}
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