mirror of
https://github.com/RetroShare/RetroShare.git
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63b1758537
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@923 b45a01b8-16f6-495d-af2f-9b41ad6348cc
102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
/*
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* idle_win.cpp - detect desktop idle time
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* Copyright (C) 2003 Justin Karneges
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "idle.h"
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#include <QLibrary>
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#include <windows.h>
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#ifndef tagLASTINPUTINFO
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typedef struct __tagLASTINPUTINFO {
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UINT cbSize;
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DWORD dwTime;
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} __LASTINPUTINFO, *__PLASTINPUTINFO;
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#endif
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class IdlePlatform::Private
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{
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public:
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Private()
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{
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GetLastInputInfo = NULL;
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lib = 0;
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}
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BOOL (__stdcall * GetLastInputInfo)(__PLASTINPUTINFO);
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DWORD (__stdcall * IdleUIGetLastInputTime)(void);
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QLibrary *lib;
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};
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IdlePlatform::IdlePlatform()
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{
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d = new Private;
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}
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IdlePlatform::~IdlePlatform()
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{
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delete d->lib;
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delete d;
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}
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bool IdlePlatform::init()
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{
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if(d->lib)
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return true;
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void *p;
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// try to find the built-in Windows 2000 function
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d->lib = new QLibrary("user32");
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if(d->lib->load() && (p = d->lib->resolve("GetLastInputInfo"))) {
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d->GetLastInputInfo = (BOOL (__stdcall *)(__PLASTINPUTINFO))p;
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return true;
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} else {
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delete d->lib;
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d->lib = 0;
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}
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// fall back on idleui
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d->lib = new QLibrary("idleui");
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if(d->lib->load() && (p = d->lib->resolve("IdleUIGetLastInputTime"))) {
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d->IdleUIGetLastInputTime = (DWORD (__stdcall *)(void))p;
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return true;
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} else {
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delete d->lib;
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d->lib = 0;
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}
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return false;
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}
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int IdlePlatform::secondsIdle()
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{
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int i;
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if(d->GetLastInputInfo) {
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__LASTINPUTINFO li;
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li.cbSize = sizeof(__LASTINPUTINFO);
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bool ok = d->GetLastInputInfo(&li);
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if(!ok)
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return 0;
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i = li.dwTime;
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} else if (d->IdleUIGetLastInputTime) {
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i = d->IdleUIGetLastInputTime();
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} else
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return 0;
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return (GetTickCount() - i) / 1000;
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}
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