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rainmeter-studio/Library/System.cpp
Birunthan Mohanathas f14d751604 - Added #CURRENTFILE# variable 
- Changes to log strings
2011-09-09 16:31:55 +00:00

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/*
Copyright (C) 2010 spx
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "StdAfx.h"
#include "System.h"
#include "Litestep.h"
#include "Rainmeter.h"
#include "MeterWindow.h"
#include "MeasureNet.h"
#include "Error.h"
#define DEBUG_VERBOSE (0) // Set 1 if you need verbose logging.
#define ZPOS_FLAGS (SWP_NOMOVE | SWP_NOSIZE | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOSENDCHANGING)
enum TIMER
{
TIMER_SHOWDESKTOP = 1,
TIMER_NETSTATS = 2,
TIMER_DELETELATER = 3
};
enum INTERVAL
{
INTERVAL_SHOWDESKTOP = 250,
INTERVAL_NETSTATS = 60000,
INTERVAL_DELETELATER = 1000
};
MULTIMONITOR_INFO CSystem::c_Monitors = { 0 };
HWND CSystem::c_Window = NULL;
HWND CSystem::c_HelperWindow = NULL;
HWINEVENTHOOK CSystem::c_WinEventHook = NULL;
bool CSystem::c_ShowDesktop = false;
OSPLATFORM CSystem::c_Platform = OSPLATFORM_UNKNOWN;
std::wstring CSystem::c_WorkingDirectory;
extern CRainmeter* Rainmeter;
/*
** Initialize
**
** Creates a helper window to detect changes in the system.
**
*/
void CSystem::Initialize(HINSTANCE instance)
{
WNDCLASS wc = {0};
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.hInstance = instance;
wc.lpszClassName = L"RainmeterSystemClass";
RegisterClass(&wc);
c_Window = CreateWindowEx(
WS_EX_TOOLWINDOW,
L"RainmeterSystemClass",
L"SystemWindow",
WS_POPUP | WS_DISABLED,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
instance,
NULL);
c_HelperWindow = CreateWindowEx(
WS_EX_TOOLWINDOW,
L"RainmeterSystemClass",
L"PositioningHelperWindow",
WS_POPUP | WS_DISABLED,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
instance,
NULL);
#ifndef _WIN64
SetWindowLong(c_Window, GWL_USERDATA, magicDWord);
SetWindowLong(c_HelperWindow, GWL_USERDATA, magicDWord);
#endif
SetWindowPos(c_Window, HWND_BOTTOM, 0, 0, 0, 0, ZPOS_FLAGS);
SetWindowPos(c_HelperWindow, HWND_BOTTOM, 0, 0, 0, 0, ZPOS_FLAGS);
c_Monitors.monitors.reserve(8);
SetMultiMonitorInfo();
WCHAR directory[MAX_PATH] = {0};
GetCurrentDirectory(MAX_PATH, directory);
c_WorkingDirectory = directory;
c_WinEventHook = SetWinEventHook(
EVENT_SYSTEM_FOREGROUND,
EVENT_SYSTEM_FOREGROUND,
NULL,
MyWinEventProc,
0,
0,
WINEVENT_OUTOFCONTEXT | WINEVENT_SKIPOWNPROCESS);
SetTimer(c_Window, TIMER_SHOWDESKTOP, INTERVAL_SHOWDESKTOP, NULL);
SetTimer(c_Window, TIMER_NETSTATS, INTERVAL_NETSTATS, NULL);
SetTimer(c_Window, TIMER_DELETELATER, INTERVAL_DELETELATER, NULL);
}
/*
** Finalize
**
** Destroys a window.
**
*/
void CSystem::Finalize()
{
KillTimer(c_Window, TIMER_SHOWDESKTOP);
KillTimer(c_Window, TIMER_NETSTATS);
KillTimer(c_Window, TIMER_DELETELATER);
if (c_WinEventHook)
{
UnhookWinEvent(c_WinEventHook);
c_WinEventHook = NULL;
}
if (c_HelperWindow)
{
DestroyWindow(c_HelperWindow);
c_HelperWindow = NULL;
}
if (c_Window)
{
DestroyWindow(c_Window);
c_Window = NULL;
}
}
/* MyInfoEnumProc
**
** Retrieves the multi-monitor information.
**
*/
BOOL CALLBACK MyInfoEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
{
MULTIMONITOR_INFO* m = (MULTIMONITOR_INFO*)dwData;
MONITORINFOEX info;
info.cbSize = sizeof(MONITORINFOEX);
GetMonitorInfo(hMonitor, &info);
if (CRainmeter::GetDebug())
{
Log(LOG_DEBUG, info.szDevice);
LogWithArgs(LOG_DEBUG, L" Flags : %s(0x%08X)", (info.dwFlags & MONITORINFOF_PRIMARY) ? L"PRIMARY " : L"", info.dwFlags);
LogWithArgs(LOG_DEBUG, L" Handle : 0x%p", hMonitor);
LogWithArgs(LOG_DEBUG, L" ScrArea : L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
lprcMonitor->left, lprcMonitor->top, lprcMonitor->right, lprcMonitor->bottom,
lprcMonitor->right - lprcMonitor->left, lprcMonitor->bottom - lprcMonitor->top);
LogWithArgs(LOG_DEBUG, L" WorkArea : L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
info.rcWork.left, info.rcWork.top, info.rcWork.right, info.rcWork.bottom,
info.rcWork.right - info.rcWork.left, info.rcWork.bottom - info.rcWork.top);
}
if (m == NULL) return TRUE;
if (m->useEnumDisplayDevices)
{
for (size_t i = 0, isize = m->monitors.size(); i < isize; ++i)
{
if (m->monitors[i].handle == NULL && _wcsnicmp(info.szDevice, m->monitors[i].deviceName, 32) == 0)
{
m->monitors[i].handle = hMonitor;
m->monitors[i].screen = *lprcMonitor;
m->monitors[i].work = info.rcWork;
break;
}
}
}
else // use only EnumDisplayMonitors
{
MONITOR_INFO monitor = {0};
monitor.active = true;
monitor.handle = hMonitor;
monitor.screen = *lprcMonitor;
monitor.work = info.rcWork;
wcsncpy_s(monitor.deviceName, info.szDevice, _TRUNCATE); // E.g. "\\.\DISPLAY1"
// Get the monitor name (E.g. "Generic Non-PnP Monitor")
DISPLAY_DEVICE ddm = {sizeof(DISPLAY_DEVICE)};
DWORD dwMon = 0;
while (EnumDisplayDevices(info.szDevice, dwMon++, &ddm, 0))
{
if (ddm.StateFlags & DISPLAY_DEVICE_ACTIVE && ddm.StateFlags & DISPLAY_DEVICE_ATTACHED)
{
wcsncpy_s(monitor.monitorName, ddm.DeviceString, _TRUNCATE);
break;
}
}
m->monitors.push_back(monitor);
if (info.dwFlags & MONITORINFOF_PRIMARY)
{
// It's primary monitor!
m->primary = (int)m->monitors.size();
}
}
return TRUE;
}
/* GetMonitorCount
**
** Returns the number of monitors.
**
*/
size_t CSystem::GetMonitorCount()
{
if (c_Monitors.monitors.empty())
{
SetMultiMonitorInfo();
}
return c_Monitors.monitors.size();
}
/* SetMultiMonitorInfo
**
** Sets the multi-monitor information.
**
*/
void CSystem::SetMultiMonitorInfo()
{
std::vector<MONITOR_INFO>& monitors = c_Monitors.monitors;
bool logging = CRainmeter::GetDebug();
c_Monitors.vsT = GetSystemMetrics(SM_YVIRTUALSCREEN);
c_Monitors.vsL = GetSystemMetrics(SM_XVIRTUALSCREEN);
c_Monitors.vsH = GetSystemMetrics(SM_CYVIRTUALSCREEN);
c_Monitors.vsW = GetSystemMetrics(SM_CXVIRTUALSCREEN);
c_Monitors.primary = 1; // If primary screen is not found, 1st screen is assumed as primary screen.
c_Monitors.useEnumDisplayDevices = true;
c_Monitors.useEnumDisplayMonitors = false;
if (logging)
{
Log(LOG_DEBUG, L"------------------------------");
Log(LOG_DEBUG, L"* EnumDisplayDevices / EnumDisplaySettings API");
}
DISPLAY_DEVICE dd = {sizeof(DISPLAY_DEVICE)};
if (EnumDisplayDevices(NULL, 0, &dd, 0))
{
DWORD dwDevice = 0;
do
{
std::wstring msg;
if (logging)
{
Log(LOG_DEBUG, dd.DeviceName);
if (dd.StateFlags & DISPLAY_DEVICE_ACTIVE)
{
msg += L"ACTIVE ";
}
if (dd.StateFlags & DISPLAY_DEVICE_MULTI_DRIVER)
{
msg += L"MULTI ";
}
if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
{
msg += L"PRIMARY ";
}
if (dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER)
{
msg += L"MIRROR ";
}
if (dd.StateFlags & DISPLAY_DEVICE_VGA_COMPATIBLE)
{
msg += L"VGA ";
}
if (dd.StateFlags & DISPLAY_DEVICE_REMOVABLE)
{
msg += L"REMOVABLE ";
}
if (dd.StateFlags & DISPLAY_DEVICE_MODESPRUNED)
{
msg += L"PRUNED ";
}
if (dd.StateFlags & DISPLAY_DEVICE_REMOTE)
{
msg += L"REMOTE ";
}
if (dd.StateFlags & DISPLAY_DEVICE_DISCONNECT)
{
msg += L"DISCONNECT ";
}
}
if ((dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER) == 0)
{
MONITOR_INFO monitor = {0};
monitor.handle = NULL;
wcsncpy_s(monitor.deviceName, dd.DeviceName, _TRUNCATE); // E.g. "\\.\DISPLAY1"
// Get the monitor name (E.g. "Generic Non-PnP Monitor")
DISPLAY_DEVICE ddm = {sizeof(DISPLAY_DEVICE)};
DWORD dwMon = 0;
while (EnumDisplayDevices(dd.DeviceName, dwMon++, &ddm, 0))
{
if (ddm.StateFlags & DISPLAY_DEVICE_ACTIVE && ddm.StateFlags & DISPLAY_DEVICE_ATTACHED)
{
wcsncpy_s(monitor.monitorName, ddm.DeviceString, _TRUNCATE);
if (logging)
{
LogWithArgs(LOG_DEBUG, L" Name : %s", ddm.DeviceString);
}
break;
}
}
if (logging)
{
LogWithArgs(LOG_DEBUG, L" Adapter : %s", dd.DeviceString);
LogWithArgs(LOG_DEBUG, L" Flags : %s(0x%08X)", msg.c_str(), dd.StateFlags);
}
if (dd.StateFlags & DISPLAY_DEVICE_ACTIVE)
{
monitor.active = true;
DEVMODE dm = {0};
dm.dmSize = sizeof(DEVMODE);
if (EnumDisplaySettings(dd.DeviceName, ENUM_CURRENT_SETTINGS, &dm))
{
POINT pos = {dm.dmPosition.x, dm.dmPosition.y};
monitor.handle = MonitorFromPoint(pos, MONITOR_DEFAULTTONULL);
if (logging)
{
LogWithArgs(LOG_DEBUG, L" Handle : 0x%p", monitor.handle);
}
}
if (monitor.handle != NULL)
{
MONITORINFO info = {sizeof(MONITORINFO)};
GetMonitorInfo(monitor.handle, &info);
monitor.screen = info.rcMonitor;
monitor.work = info.rcWork;
if (logging)
{
LogWithArgs(LOG_DEBUG, L" ScrArea : L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
info.rcMonitor.left, info.rcMonitor.top, info.rcMonitor.right, info.rcMonitor.bottom,
info.rcMonitor.right - info.rcMonitor.left, info.rcMonitor.bottom - info.rcMonitor.top);
LogWithArgs(LOG_DEBUG, L" WorkArea : L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
info.rcWork.left, info.rcWork.top, info.rcWork.right, info.rcWork.bottom,
info.rcWork.right - info.rcWork.left, info.rcWork.bottom - info.rcWork.top);
}
}
else // monitor not found
{
c_Monitors.useEnumDisplayMonitors = true;
}
}
else
{
monitor.active = false;
}
monitors.push_back(monitor);
if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
{
// It's primary monitor!
c_Monitors.primary = (int)monitors.size();
}
}
else
{
if (logging)
{
LogWithArgs(LOG_DEBUG, L" Adapter : %s", dd.DeviceString);
LogWithArgs(LOG_DEBUG, L" Flags : %s(0x%08X)", msg.c_str(), dd.StateFlags);
}
}
++dwDevice;
} while (EnumDisplayDevices(NULL, dwDevice, &dd, 0));
}
if (monitors.empty()) // Failed to enumerate the non-mirroring monitors
{
Log(LOG_WARNING, L"Failed to enumerate the non-mirroring monitors. Only EnumDisplayMonitors is used instead.");
c_Monitors.useEnumDisplayDevices = false;
c_Monitors.useEnumDisplayMonitors = true;
}
if (logging)
{
Log(LOG_DEBUG, L"------------------------------");
Log(LOG_DEBUG, L"* EnumDisplayMonitors API");
}
if (c_Monitors.useEnumDisplayMonitors)
{
EnumDisplayMonitors(NULL, NULL, MyInfoEnumProc, (LPARAM)(&c_Monitors));
if (monitors.empty()) // Failed to enumerate the monitors
{
Log(LOG_WARNING, L"Failed to enumerate monitors. Using dummy monitor info.");
c_Monitors.useEnumDisplayMonitors = false;
MONITOR_INFO monitor = {0};
wcsncpy_s(monitor.deviceName, L"DUMMY", _TRUNCATE);
POINT pos = {0, 0};
monitor.handle = MonitorFromPoint(pos, MONITOR_DEFAULTTOPRIMARY);
monitor.screen.left = 0;
monitor.screen.top = 0;
monitor.screen.right = GetSystemMetrics(SM_CXSCREEN);
monitor.screen.bottom = GetSystemMetrics(SM_CYSCREEN);
SystemParametersInfo(SPI_GETWORKAREA, 0, &(monitor.work), 0);
monitor.active = true;
monitors.push_back(monitor);
c_Monitors.primary = 1;
}
}
else
{
if (logging)
{
EnumDisplayMonitors(NULL, NULL, MyInfoEnumProc, (LPARAM)NULL); // Only logging
}
}
if (logging)
{
Log(LOG_DEBUG, L"------------------------------");
std::wstring method = L"* METHOD: ";
if (c_Monitors.useEnumDisplayDevices)
{
method += L"EnumDisplayDevices + ";
method += c_Monitors.useEnumDisplayMonitors ? L"EnumDisplayMonitors Mode" : L"EnumDisplaySettings Mode";
}
else
{
method += c_Monitors.useEnumDisplayMonitors ? L"EnumDisplayMonitors Mode" : L"Dummy Mode";
}
Log(LOG_DEBUG, method.c_str());
LogWithArgs(LOG_DEBUG, L"* MONITORS: Count=%i, Primary=@%i", (int)monitors.size(), c_Monitors.primary);
Log(LOG_DEBUG, L"@0: Virtual screen");
LogWithArgs(LOG_DEBUG, L" L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
c_Monitors.vsL, c_Monitors.vsT, c_Monitors.vsL + c_Monitors.vsW, c_Monitors.vsT + c_Monitors.vsH,
c_Monitors.vsW, c_Monitors.vsH);
for (size_t i = 0, isize = monitors.size(); i < isize; ++i)
{
if (monitors[i].active)
{
LogWithArgs(LOG_DEBUG, L"@%i: %s (active), MonitorName: %s", (int)i + 1, monitors[i].deviceName, monitors[i].monitorName);
LogWithArgs(LOG_DEBUG, L" L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
monitors[i].screen.left, monitors[i].screen.top, monitors[i].screen.right, monitors[i].screen.bottom,
monitors[i].screen.right - monitors[i].screen.left, monitors[i].screen.bottom - monitors[i].screen.top);
}
else
{
LogWithArgs(LOG_DEBUG, L"@%i: %s (inactive), MonitorName: %s", (int)i + 1, monitors[i].deviceName, monitors[i].monitorName);
}
}
Log(LOG_DEBUG, L"------------------------------");
}
}
/* UpdateWorkareaInfo
**
** Updates the workarea information.
**
*/
void CSystem::UpdateWorkareaInfo()
{
std::vector<MONITOR_INFO>& monitors = c_Monitors.monitors;
if (monitors.empty())
{
SetMultiMonitorInfo();
return;
}
for (size_t i = 0, isize = monitors.size(); i < isize; ++i)
{
if (monitors[i].active && monitors[i].handle != NULL)
{
MONITORINFO info = {sizeof(MONITORINFO)};
GetMonitorInfo(monitors[i].handle, &info);
monitors[i].work = info.rcWork;
if (CRainmeter::GetDebug())
{
LogWithArgs(LOG_DEBUG, L"WorkArea@%i : L=%i, T=%i, R=%i, B=%i (W=%i, H=%i)",
(int)i + 1,
info.rcWork.left, info.rcWork.top, info.rcWork.right, info.rcWork.bottom,
info.rcWork.right - info.rcWork.left, info.rcWork.bottom - info.rcWork.top);
}
}
}
}
/*
** GetDefaultShellWindow
**
** Finds the Default Shell's window.
**
*/
HWND CSystem::GetDefaultShellWindow()
{
static HWND c_ShellW = NULL; // cache
HWND ShellW = GetShellWindow();
if (ShellW)
{
if (ShellW == c_ShellW)
{
return ShellW;
}
else
{
WCHAR className[16];
if (!(GetClassName(ShellW, className, 16) > 0 &&
wcscmp(className, L"Progman") == 0))
{
ShellW = NULL;
}
}
}
c_ShellW = ShellW;
return ShellW;
}
/*
** GetWorkerW
**
** Finds the WorkerW window.
** If the WorkerW window is not active, returns NULL.
**
*/
HWND CSystem::GetWorkerW()
{
static HWND c_DefView = NULL; // cache
HWND ShellW = GetDefaultShellWindow();
if (!ShellW) return NULL; // Default Shell (Explorer) not running
if (c_DefView && IsWindow(c_DefView))
{
HWND parent = GetAncestor(c_DefView, GA_PARENT);
if (parent)
{
if (parent == ShellW)
{
return NULL;
}
else
{
WCHAR className[16];
if (GetClassName(parent, className, 16) > 0 &&
wcscmp(className, L"WorkerW") == 0)
{
return parent;
}
}
}
}
HWND WorkerW = NULL, DefView = FindWindowEx(ShellW, NULL, L"SHELLDLL_DefView", L"");
if (DefView == NULL)
{
while (WorkerW = FindWindowEx(NULL, WorkerW, L"WorkerW", L""))
{
if (IsWindowVisible(WorkerW) &&
BelongToSameProcess(ShellW, WorkerW) &&
(DefView = FindWindowEx(WorkerW, NULL, L"SHELLDLL_DefView", L"")))
{
break;
}
}
}
c_DefView = DefView;
return WorkerW;
}
/*
** BelongToSameProcess
**
** Checks whether the given windows belong to the same process.
**
*/
bool CSystem::BelongToSameProcess(HWND hwndA, HWND hwndB)
{
DWORD procAId = 0, procBId = 0;
GetWindowThreadProcessId(hwndA, &procAId);
GetWindowThreadProcessId(hwndB, &procBId);
return (procAId == procBId);
}
/*
** MyEnumWindowsProc
**
** Retrieves the Rainmeter's meter windows in Z-order.
**
*/
BOOL CALLBACK MyEnumWindowsProc(HWND hwnd, LPARAM lParam)
{
bool logging = CRainmeter::GetDebug() && DEBUG_VERBOSE;
WCHAR className[64];
CMeterWindow* Window;
WCHAR flag;
if (GetClassName(hwnd, className, 64) > 0 &&
wcscmp(className, METERWINDOW_CLASS_NAME) == 0 &&
Rainmeter && (Window = Rainmeter->GetMeterWindow(hwnd)))
{
ZPOSITION zPos = Window->GetWindowZPosition();
if (zPos == ZPOSITION_ONDESKTOP || zPos == ZPOSITION_ONBOTTOM)
{
if (lParam)
{
((std::vector<CMeterWindow*>*)lParam)->push_back(Window);
}
if (logging) flag = L'+';
}
else
{
if (logging) flag = L'-';
}
if (logging)
{
LogWithArgs(LOG_DEBUG, L"%c [%c] 0x%p : %s (Name: \"%s\", zPos=%i)",
flag, IsWindowVisible(hwnd) ? L'V' : L'H', hwnd, className, Window->GetSkinName().c_str(), (int)zPos);
}
}
else
{
if (logging)
{
flag = (hwnd == CSystem::GetHelperWindow()) ? L'o' : ' ';
LogWithArgs(LOG_DEBUG, L"%c [%c] 0x%p : %s", flag, IsWindowVisible(hwnd) ? L'V' : L'H', hwnd, className);
}
}
return TRUE;
}
/*
** ChangeZPosInOrder
**
** Arranges the meter window in Z-order.
**
*/
void CSystem::ChangeZPosInOrder()
{
if (Rainmeter)
{
bool logging = CRainmeter::GetDebug() && DEBUG_VERBOSE;
std::vector<CMeterWindow*> windowsInZOrder;
if (logging) Log(LOG_DEBUG, L"1: ----- BEFORE -----");
// Retrieve the Rainmeter's meter windows in Z-order
EnumWindows(MyEnumWindowsProc, (LPARAM)(&windowsInZOrder));
if (!c_ShowDesktop)
{
// Reset ZPos in Z-order (Bottom)
std::vector<CMeterWindow*>::const_iterator iter = windowsInZOrder.begin(), iterEnd = windowsInZOrder.end();
for ( ; iter != iterEnd; ++iter)
{
if ((*iter)->GetWindowZPosition() == ZPOSITION_ONBOTTOM)
{
(*iter)->ChangeZPos(ZPOSITION_ONBOTTOM); // reset
}
}
}
// Reset ZPos in Z-order (On Desktop)
std::vector<CMeterWindow*>::const_iterator iter = windowsInZOrder.begin(), iterEnd = windowsInZOrder.end();
for ( ; iter != iterEnd; ++iter)
{
if ((*iter)->GetWindowZPosition() == ZPOSITION_ONDESKTOP)
{
(*iter)->ChangeZPos(ZPOSITION_ONDESKTOP); // reset
}
}
if (logging)
{
Log(LOG_DEBUG, L"2: ----- AFTER -----");
// Log all windows in Z-order
EnumWindows(MyEnumWindowsProc, (LPARAM)NULL);
}
}
}
/*
** PrepareHelperWindow
**
** Moves the helper window to the reference position.
**
*/
void CSystem::PrepareHelperWindow(HWND WorkerW)
{
bool logging = CRainmeter::GetDebug() && DEBUG_VERBOSE;
SetWindowPos(c_Window, HWND_BOTTOM, 0, 0, 0, 0, ZPOS_FLAGS); // always on bottom
if (c_ShowDesktop && WorkerW)
{
// Set WS_EX_TOPMOST flag
SetWindowPos(c_HelperWindow, HWND_TOPMOST, 0, 0, 0, 0, ZPOS_FLAGS);
// Find the "backmost" topmost window
HWND hwnd = WorkerW;
while (hwnd = ::GetNextWindow(hwnd, GW_HWNDPREV))
{
if (GetWindowLong(hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)
{
WCHAR className[64], windowText[64];
if (logging)
{
GetClassName(hwnd, className, 64);
GetWindowText(hwnd, windowText, 64);
SetLastError(ERROR_SUCCESS);
}
// Insert the helper window after the found window
if (0 != SetWindowPos(c_HelperWindow, hwnd, 0, 0, 0, 0, ZPOS_FLAGS))
{
if (logging)
{
LogWithArgs(LOG_DEBUG, L"System: HelperWindow: hwnd=0x%p (WorkerW=0x%p), hwndInsertAfter=0x%p (\"%s\" %s) - %s",
c_HelperWindow, WorkerW, hwnd, windowText, className, (GetWindowLong(c_HelperWindow, GWL_EXSTYLE) & WS_EX_TOPMOST) ? L"TOPMOST" : L"NORMAL");
}
return;
}
if (logging)
{
DWORD err = GetLastError();
LogWithArgs(LOG_DEBUG, L"System: HelperWindow: hwnd=0x%p (WorkerW=0x%p), hwndInsertAfter=0x%p (\"%s\" %s) - FAILED (ErrorCode=0x%08X)",
c_HelperWindow, WorkerW, hwnd, windowText, className, err);
}
}
}
if (logging)
{
LogWithArgs(LOG_DEBUG, L"System: HelperWindow: hwnd=0x%p (WorkerW=0x%p), hwndInsertAfter=HWND_TOPMOST - %s",
c_HelperWindow, WorkerW, (GetWindowLong(c_HelperWindow, GWL_EXSTYLE) & WS_EX_TOPMOST) ? L"TOPMOST" : L"NORMAL");
}
}
else
{
// Insert the helper window to the bottom
SetWindowPos(c_HelperWindow, HWND_BOTTOM, 0, 0, 0, 0, ZPOS_FLAGS);
if (logging)
{
LogWithArgs(LOG_DEBUG, L"System: HelperWindow: hwnd=0x%p (WorkerW=0x%p), hwndInsertAfter=HWND_BOTTOM - %s",
c_HelperWindow, WorkerW, (GetWindowLong(c_HelperWindow, GWL_EXSTYLE) & WS_EX_TOPMOST) ? L"TOPMOST" : L"NORMAL");
}
}
}
/*
** CheckDesktopState
**
** Changes the "Show Desktop" state.
**
*/
bool CSystem::CheckDesktopState(HWND WorkerW)
{
HWND hwnd = NULL;
if (WorkerW && IsWindowVisible(WorkerW))
{
hwnd = FindWindowEx(NULL, WorkerW, L"RainmeterSystemClass", L"SystemWindow");
}
bool stateChanged = (hwnd && !c_ShowDesktop) || (!hwnd && c_ShowDesktop);
if (stateChanged)
{
c_ShowDesktop = !c_ShowDesktop;
if (CRainmeter::GetDebug())
{
LogWithArgs(LOG_DEBUG, L"System: \"Show %s\" has been detected.",
c_ShowDesktop ? L"desktop" : L"open windows");
}
PrepareHelperWindow(WorkerW);
ChangeZPosInOrder();
}
return stateChanged;
}
/*
** MyWinEventHook
**
** The event hook procedure
**
*/
void CALLBACK CSystem::MyWinEventProc(HWINEVENTHOOK hWinEventHook, DWORD event, HWND hwnd, LONG idObject, LONG idChild, DWORD dwEventThread, DWORD dwmsEventTime)
{
if (event == EVENT_SYSTEM_FOREGROUND)
{
if (!c_ShowDesktop)
{
WCHAR className[16];
if (GetClassName(hwnd, className, 16) > 0 &&
wcscmp(className, L"WorkerW") == 0 &&
BelongToSameProcess(GetDefaultShellWindow(), hwnd))
{
const int max = 5;
int loop = 0;
while (loop < max && FindWindowEx(hwnd, NULL, L"SHELLDLL_DefView", L"") == NULL)
{
Sleep(2); // Wait for 2-16 ms before retrying
++loop;
}
if (loop < max)
{
loop = 0;
while (loop < max && !CheckDesktopState(hwnd))
{
Sleep(2); // Wait for 2-16 ms before retrying
++loop;
}
}
}
}
}
}
/*
** WndProc
**
** The window procedure
**
*/
LRESULT CALLBACK CSystem::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
if (hWnd != c_Window)
{
if (uMsg == WM_WINDOWPOSCHANGING)
{
((LPWINDOWPOS)lParam)->flags |= SWP_NOZORDER;
return 0;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
switch (uMsg)
{
case WM_WINDOWPOSCHANGING:
((LPWINDOWPOS)lParam)->flags |= SWP_NOZORDER;
return 0;
case WM_TIMER:
switch (wParam)
{
case TIMER_SHOWDESKTOP:
CheckDesktopState(GetWorkerW());
return 0;
case TIMER_NETSTATS:
CMeasureNet::UpdateIFTable();
CMeasureNet::UpdateStats();
if (Rainmeter) Rainmeter->WriteStats(false);
return 0;
case TIMER_DELETELATER:
if (Rainmeter) Rainmeter->ClearDeleteLaterList();
return 0;
}
break;
case WM_DISPLAYCHANGE:
Log(LOG_NOTICE, L"System: Display settings changed");
ClearMultiMonitorInfo();
CConfigParser::ClearMultiMonitorVariables();
case WM_SETTINGCHANGE:
if (uMsg == WM_DISPLAYCHANGE || (uMsg == WM_SETTINGCHANGE && wParam == SPI_SETWORKAREA))
{
if (uMsg == WM_SETTINGCHANGE) // SPI_SETWORKAREA
{
Log(LOG_NOTICE, L"System: Work area changed");
UpdateWorkareaInfo();
CConfigParser::UpdateWorkareaVariables();
}
if (Rainmeter)
{
// Deliver WM_DISPLAYCHANGE / WM_SETTINGCHANGE message to all meter windows
const std::map<std::wstring, CMeterWindow*>& windows = Rainmeter->GetAllMeterWindows();
std::map<std::wstring, CMeterWindow*>::const_iterator iter = windows.begin();
for ( ; iter != windows.end(); ++iter)
{
PostMessage((*iter).second->GetWindow(), WM_DELAYED_MOVE, (WPARAM)uMsg, (LPARAM)0);
}
}
}
return 0;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
/*
** GetOSPlatform
**
** Checks which OS you are running.
**
*/
OSPLATFORM CSystem::GetOSPlatform()
{
if (c_Platform == OSPLATFORM_UNKNOWN)
{
OSVERSIONINFOEX osvi = {sizeof(OSVERSIONINFOEX)};
if (!GetVersionEx((OSVERSIONINFO*)&osvi) || osvi.dwPlatformId != VER_PLATFORM_WIN32_NT)
{
c_Platform = OSPLATFORM_9X;
}
else
{
if (osvi.dwMajorVersion <= 4) // NT4 or older
{
c_Platform = OSPLATFORM_NT4;
}
else if (osvi.dwMajorVersion == 5) // 2000 / XP (x64 / Server 2003, R2)
{
if (osvi.dwMinorVersion == 0)
{
c_Platform = OSPLATFORM_2K;
}
else
{
c_Platform = OSPLATFORM_XP;
}
}
else if (osvi.dwMajorVersion == 6) // Vista (Server 2008) / 7 (Server 2008R2)
{
if (osvi.dwMinorVersion == 0)
{
c_Platform = OSPLATFORM_VISTA;
}
else
{
c_Platform = OSPLATFORM_7;
}
}
else // newer OS
{
c_Platform = OSPLATFORM_7;
}
}
}
return c_Platform;
}
/*
** GetTickCount64
**
** Retrieves the number of milliseconds that have elapsed since the system was started.
** In XP, returns the predictive value due to the 32bit limitation.
**
*/
ULONGLONG CSystem::GetTickCount64()
{
typedef ULONGLONG (WINAPI * FPGETTICKCOUNT64)();
static FPGETTICKCOUNT64 c_GetTickCount64 = (FPGETTICKCOUNT64)GetProcAddress(GetModuleHandle(L"kernel32"), "GetTickCount64");
if (c_GetTickCount64)
{
return c_GetTickCount64();
}
else
{
static ULONGLONG lastTicks = 0;
ULONGLONG ticks = GetTickCount();
while (ticks < lastTicks) ticks += 0x100000000;
lastTicks = ticks;
return ticks;
}
}
/*
** RmLoadLibrary
**
** This function is a wrapper function for LoadLibrary().
**
** Avoids loading a DLL from current directory.
**
*/
HMODULE CSystem::RmLoadLibrary(LPCWSTR lpLibFileName, DWORD* dwError, bool ignoreErrors)
{
HMODULE hLib = NULL;
DWORD err;
UINT oldMode;
if (ignoreErrors)
{
oldMode = SetErrorMode(0);
SetErrorMode(oldMode | SEM_FAILCRITICALERRORS); // Prevent the system from displaying message box
}
// Remove current directory from DLL search path
SetDllDirectory(L"");
SetLastError(ERROR_SUCCESS);
hLib = LoadLibrary(lpLibFileName);
err = GetLastError();
if (ignoreErrors)
{
SetErrorMode(oldMode); // Reset
}
if (dwError)
{
*dwError = err;
}
return hLib;
}
/*
** ResetWorkingDirectory
**
** Resets working directory to default.
**
*/
void CSystem::ResetWorkingDirectory()
{
WCHAR directory[MAX_PATH] = {0};
GetCurrentDirectory(MAX_PATH, directory);
if (_wcsicmp(directory, c_WorkingDirectory.c_str()) != 0)
{
SetCurrentDirectory(c_WorkingDirectory.c_str());
}
}
/*
** SetClipboardText
**
** Sets clipboard text to given string.
**
*/
void CSystem::SetClipboardText(const std::wstring& text)
{
if (OpenClipboard(NULL))
{
// Include terminating null char
size_t len = text.length() + 1;
HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE, len * sizeof(WCHAR));
if (hMem)
{
LPVOID data = GlobalLock(hMem);
if (data)
{
memcpy(data, text.c_str(), len * sizeof(WCHAR));
GlobalUnlock(hMem);
EmptyClipboard();
if (!SetClipboardData(CF_UNICODETEXT, hMem))
{
GlobalFree(hMem);
}
}
}
CloseClipboard();
}
}
/*
** CopyFiles
**
** Copies files and folders from one location to another.
**
*/
bool CSystem::CopyFiles(const std::wstring& strFrom, const std::wstring& strTo, bool bMove)
{
std::wstring tmpFrom(strFrom), tmpTo(strTo);
// The strings must end with double nul
tmpFrom.append(1, L'\0');
tmpTo.append(1, L'\0');
SHFILEOPSTRUCT fo = {0};
fo.wFunc = bMove ? FO_MOVE : FO_COPY;
fo.pFrom = tmpFrom.c_str();
fo.pTo = tmpTo.c_str();
fo.fFlags = FOF_NO_UI | FOF_NOCONFIRMATION | FOF_ALLOWUNDO;
int result = SHFileOperation(&fo);
if (result != 0)
{
LogWithArgs(LOG_ERROR, L"Unable to copy files from %s to %s (%i)", strFrom.c_str(), strTo.c_str(), result);
return false;
}
return true;
}
/*
** RemoveFile
**
** Removes a file even if a file is read-only.
**
*/
bool CSystem::RemoveFile(const std::wstring& file)
{
DWORD attr = GetFileAttributes(file.c_str());
if (attr == -1 || (attr & FILE_ATTRIBUTE_READONLY))
{
// Unset read-only
SetFileAttributes(file.c_str(), (attr == -1) ? FILE_ATTRIBUTE_NORMAL : attr - FILE_ATTRIBUTE_READONLY);
}
return (DeleteFile(file.c_str()) != 0);
}
/*
** RemoveFolder
**
** Recursively removes folder.
**
*/
bool CSystem::RemoveFolder(const std::wstring& strFolder)
{
std::wstring tmpFolder(strFolder);
// The strings must end with double nul
tmpFolder.append(1, L'\0');
SHFILEOPSTRUCT fo = {0};
fo.wFunc = FO_DELETE;
fo.pFrom = tmpFolder.c_str();
fo.fFlags = FOF_NO_UI | FOF_NOCONFIRMATION | FOF_ALLOWUNDO;
int result = SHFileOperation(&fo);
if (result != 0)
{
LogWithArgs(LOG_ERROR, L"Unable to delete folder %s (%i)", strFolder.c_str(), result);
return false;
}
return true;
}
/*
** GetIniFileMappingList
**
** Retrieves the "IniFileMapping" entries from Registry.
**
*/
void CSystem::GetIniFileMappingList(std::vector<std::wstring>& iniFileMappings)
{
HKEY hKey;
LONG ret;
ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\IniFileMapping", 0, KEY_ENUMERATE_SUB_KEYS, &hKey);
if (ret == ERROR_SUCCESS)
{
WCHAR buffer[MAX_PATH];
DWORD index = 0, cch = MAX_PATH;
while (true)
{
ret = RegEnumKeyEx(hKey, index++, buffer, &cch, NULL, NULL, NULL, NULL);
if (ret == ERROR_NO_MORE_ITEMS) break;
if (ret == ERROR_SUCCESS)
{
iniFileMappings.push_back(buffer);
}
cch = MAX_PATH;
}
RegCloseKey(hKey);
}
}
/*
** GetTemporaryFile
**
** Prepares a temporary file if iniFile is included in the "IniFileMapping" entries.
** If iniFile is not included, returns a empty string. If error occurred, returns "<>".
** Note that a temporary file must be deleted by caller.
**
*/
std::wstring CSystem::GetTemporaryFile(const std::vector<std::wstring>& iniFileMappings, const std::wstring& iniFile)
{
std::wstring temporary;
if (!iniFileMappings.empty())
{
std::wstring::size_type pos = iniFile.find_last_of(L'\\');
std::wstring filename;
if (pos != std::wstring::npos)
{
filename.assign(iniFile, pos + 1, iniFile.length() - (pos + 1));
}
else
{
filename = iniFile;
}
for (size_t i = 0, isize = iniFileMappings.size(); i < isize; ++i)
{
if (_wcsicmp(iniFileMappings[i].c_str(), filename.c_str()) == 0)
{
WCHAR buffer[MAX_PATH];
GetTempPath(MAX_PATH, buffer);
temporary = buffer;
if (GetTempFileName(temporary.c_str(), L"cfg", 0, buffer) != 0)
{
temporary = buffer;
std::wstring tmp = GetTemporaryFile(iniFileMappings, temporary);
if (tmp.empty() && CopyFiles(iniFile, temporary))
{
return temporary;
}
else // alternate is reserved or failed
{
RemoveFile(temporary);
return tmp.empty() ? L"<>" : tmp;
}
}
else // failed
{
LogWithArgs(LOG_ERROR, L"Unable to create temporary file to: %s", temporary.c_str());
return L"<>";
}
}
}
}
return temporary;
}
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