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rainmeter-studio/Plugins/PluginVirtualDesktops/DexpotMeasure.cpp

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/*
Copyright (C) 2010-2011 Patrick Dubbert
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "DexpotMeasure.h"
#include <tchar.h>
#include <fstream>
#include "DexpotConstants.h"
#include "../../Library/Export.h"
int DexpotMeasure::InstanceCount = 0;
HWND DexpotMeasure::hWndDexpot = NULL;
HWND DexpotMeasure::hWndMessageWindow = NULL;
std::set<DexpotMeasure*> DexpotMeasure::DexpotMeasures;
TCHAR DexpotMeasure::StringBuffer[STRINGBUFFER_SIZE];
UINT DexpotMeasure::WM_DEXPOTSTARTED = RegisterWindowMessage(_T("DexpotStarted"));
BOOL DexpotMeasure::PluginRegistered = FALSE;
HWND DexpotMeasure::hWndRainmeterControl = NULL;
int DexpotMeasure::CurrentDesktop = 0;
std::vector<std::wstring> DexpotDesktopNameMeasure::DesktopNames;
std::vector<std::wstring> DexpotDesktopWallpaperMeasure::DesktopWallpapers;
DexpotMeasure::DexpotMeasure(HMODULE instance, UINT _id) : VDMeasure(instance, _id)
{
}
DexpotMeasure* DexpotMeasure::CreateMeasure(HMODULE instance, UINT id, LPCTSTR iniFile, LPCTSTR section)
{
std::wstring TypeString(ReadConfigString(section, _T("VDMeasureType"), _T("")));
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if (TypeString == _T("VDMActive")) return new DexpotVDMActiveMeasure(instance, id);
else if (TypeString == _T("DesktopCount")) return new DexpotDesktopCountMeasure(instance, id);
else if (TypeString == _T("CurrentDesktop")) return new DexpotCurrentDesktopMeasure(instance, id);
else if (TypeString == _T("SwitchDesktop")) return new DexpotSwitchDesktopMeasure(instance, id);
else if (TypeString == _T("Screenshot")) return new DexpotScreenshotMeasure(instance, id);
else if (TypeString == _T("DesktopName")) return new DexpotDesktopNameMeasure(instance, id);
else if (TypeString == _T("DesktopWallpaper")) return new DexpotDesktopWallpaperMeasure(instance, id);
else if (TypeString == _T("Command")) return new DexpotCommandMeasure(instance, id);
return NULL;
}
UINT DexpotMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
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if (InstanceCount == 0)
{
hWndRainmeterControl = FindWindow(_T("DummyRainWClass"), _T("Rainmeter control window"));
hWndMessageWindow = CreateMessageWindow();
}
InstanceCount++;
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if (!PluginRegistered && FindDexpotWindow())
{
SendNotifyMessage(hWndDexpot, DEX_REGISTERPLUGIN, 0, (LPARAM) hWndMessageWindow);
CurrentDesktop = (int) SendMessage(hWndDexpot, DEX_GETCURRENTDESKTOP, 0, 0);
PluginRegistered = TRUE;
}
InitializeData();
DexpotMeasures.insert(this);
return 0;
}
void DexpotMeasure::Finalize()
{
InstanceCount--;
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if (InstanceCount == 0)
{
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if (PluginRegistered)
{
SendNotifyMessage(hWndDexpot, DEX_UNREGISTERPLUGIN, 0, (LPARAM) hWndMessageWindow);
PluginRegistered = FALSE;
}
DestroyWindow(hWndMessageWindow);
UnregisterClass(_T("DexpotPluginWindowClass"), hInstance);
}
DexpotMeasures.erase(this);
}
UINT DexpotMeasure::Update()
{
return 0;
}
LPCTSTR DexpotMeasure::GetString(UINT flags)
{
_stprintf_s(StringBuffer, STRINGBUFFER_SIZE, _T("%i"), Update());
return StringBuffer;
}
void DexpotMeasure::OnDexpotStarted()
{
InitializeData();
}
BOOL DexpotMeasure::FindDexpotWindow()
{
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if (IsWindow(hWndDexpot)) return TRUE;
hWndDexpot = FindWindow(DEXPOTCLASS, DEXPOTTITLE);
return hWndDexpot != NULL;
}
HWND DexpotMeasure::CreateMessageWindow()
{
WNDCLASS wc;
ZeroMemory(&wc, sizeof(wc));
wc.hInstance = hInstance;
wc.lpszClassName = _T("DexpotPluginWindowClass");
wc.lpfnWndProc = WindowProc;
RegisterClass(&wc);
HWND hWnd = CreateWindowEx(0, _T("DexpotPluginWindowClass"), _T("Dexpot Rainmeter Plugin"), 0, 0, 0, 0, 0, NULL, NULL, hInstance, NULL);
SetWindowLong(hWnd, GWL_STYLE, 0);
SetWindowPos(hWnd, NULL, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
MoveWindow(hWnd, 0, 0, 0, 0, FALSE);
return hWnd;
}
void DexpotMeasure::SendBang(std::wstring &Bang)
{
COPYDATASTRUCT cds;
cds.dwData = 1;
cds.cbData = (DWORD) (Bang.length() + 1) * sizeof(wchar_t);
cds.lpData = (PVOID) Bang.c_str();
SendMessage(hWndRainmeterControl, WM_COPYDATA, (WPARAM) hWndMessageWindow, (LPARAM) &cds);
}
LRESULT CALLBACK DexpotMeasure::WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case DEX_SWITCHED:
CurrentDesktop = HIWORD(lParam);
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for (std::set<DexpotMeasure*>::iterator i = DexpotMeasures.begin(); i != DexpotMeasures.end(); ++i)
{
(*i)->OnSwitched(LOWORD(lParam), HIWORD(lParam), LOWORD(wParam), HIWORD(wParam));
}
return 0;
case DEX_DESKTOPCOUNTCHANGED:
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for (std::set<DexpotMeasure*>::iterator i = DexpotMeasures.begin(); i != DexpotMeasures.end(); ++i)
{
(*i)->OnDesktopCountChanged((int)wParam);
}
return 0;
case DEX_SHUTDOWN:
PluginRegistered = FALSE;
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for (std::set<DexpotMeasure*>::iterator i = DexpotMeasures.begin(); i != DexpotMeasures.end(); ++i)
{
(*i)->OnShutdown();
}
return 0;
case DEX_DESKTOPCONFIGURATIONCHANGED:
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for (std::set<DexpotMeasure*>::iterator i = DexpotMeasures.begin(); i != DexpotMeasures.end(); ++i)
{
(*i)->OnDesktopConfigurationChanged();
}
return 0;
case WM_COPYDATA:
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if ((HWND) wParam == hWndDexpot)
{
COPYDATASTRUCT *cds = (COPYDATASTRUCT*) lParam;
switch(LOWORD(cds->dwData))
{
case DEX_GETDESKTOPTITLE:
DexpotDesktopNameMeasure::SetDesktopName(HIWORD(cds->dwData), std::wstring((LPTSTR) cds->lpData));
break;
case DEX_GETDESKTOPWALLPAPER:
DexpotDesktopWallpaperMeasure::SetDesktopWallpaper(HIWORD(cds->dwData), std::wstring((LPTSTR) cds->lpData));
break;
}
}
return 0;
default:
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if (message == WM_DEXPOTSTARTED)
{
hWndDexpot = (HWND) wParam;
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if (!hWndDexpot) FindDexpotWindow();
if (hWndDexpot)
{
SendMessage(hWndDexpot, DEX_REGISTERPLUGIN, 0, (LPARAM) hWndMessageWindow);
CurrentDesktop = (int) SendMessage(hWndDexpot, DEX_GETCURRENTDESKTOP, 0, 0);
PluginRegistered = TRUE;
}
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for (std::set<DexpotMeasure*>::iterator i = DexpotMeasures.begin(); i != DexpotMeasures.end(); ++i)
{
(*i)->OnDexpotStarted();
}
return 0;
}
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
/*
* DexpotDesktopCountMeasure
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*
*/
DexpotDesktopCountMeasure::DexpotDesktopCountMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
UINT DexpotDesktopCountMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
DesktopCount = 0;
OnChange = ReadConfigString(section, _T("VDOnChange"), _T(""));
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CountType = Total;
LPCTSTR TypeString = ReadConfigString(section, _T("VDDesktopCount"), _T(""));
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if (_tcsicmp(TypeString, _T("X")) == 0) CountType = Columns;
else if (_tcsicmp(TypeString, _T("Y")) == 0) CountType = Rows;
DexpotMeasure::Initialize(iniFile, section);
return 20;
}
void DexpotDesktopCountMeasure::InitializeData()
{
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if (PluginRegistered) DesktopCount = (int) SendMessage(hWndDexpot, DEX_GETDESKTOPCOUNT, 0, 0);
}
UINT DexpotDesktopCountMeasure::Update()
{
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if (CountType == Rows) return 1;
else return DesktopCount;
}
void DexpotDesktopCountMeasure::OnDesktopCountChanged(int NewCount)
{
DesktopCount = NewCount;
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if (OnChange.length()) SendBang(OnChange);
}
/*
* DexpotCurrentDesktopMeasure
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*
*/
DexpotCurrentDesktopMeasure::DexpotCurrentDesktopMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
UINT DexpotCurrentDesktopMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
OnChange = ReadConfigString(section, _T("VDOnChange"), _T(""));
DexpotMeasure::Initialize(iniFile, section);
return 0;
}
UINT DexpotCurrentDesktopMeasure::Update()
{
return CurrentDesktop;
}
void DexpotCurrentDesktopMeasure::OnSwitched(int FromDesktop, int ToDesktop, WORD Flags, WORD Trigger)
{
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if (OnChange.length()) SendBang(OnChange);
}
/*
* DexpotVDMActiveMeasure
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*
*/
DexpotVDMActiveMeasure::DexpotVDMActiveMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {};
UINT DexpotVDMActiveMeasure::Update()
{
return PluginRegistered ? 1 : 0;
}
UINT DexpotVDMActiveMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
OnActivate = ReadConfigString(section, _T("VDOnActivate"), _T(""));
OnDeactivate = ReadConfigString(section, _T("VDOnDeactivate"), _T(""));
DexpotMeasure::Initialize(iniFile, section);
return 1;
}
void DexpotVDMActiveMeasure::OnShutdown()
{
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if (OnDeactivate.length()) SendBang(OnDeactivate);
}
void DexpotVDMActiveMeasure::OnDexpotStarted()
{
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if (OnActivate.length()) SendBang(OnActivate);
}
/*
* DexpotSwitchDesktopMeasure
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*
*/
DexpotSwitchDesktopMeasure::DexpotSwitchDesktopMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
void DexpotSwitchDesktopMeasure::ExecuteBang(LPCTSTR args)
{
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if (PluginRegistered)
{
DWORD Desktop;
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if (_tcsicmp(args, _T("next")) == 0) Desktop = MAKELPARAM(0, 1);
else if (_tcsicmp(args, _T("prev")) == 0) Desktop = MAKELPARAM(0, 2);
else if (_tcsicmp(args, _T("back")) == 0) Desktop = MAKELPARAM(0, 3);
else Desktop = _ttoi(args);
SendNotifyMessage(hWndDexpot, DEX_SWITCHDESKTOP, 0, Desktop);
}
}
/*
* DexpotScreenshotMeasure
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*
*/
DexpotScreenshotMeasure::DexpotScreenshotMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
UINT DexpotScreenshotMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
OutputFile = ReadConfigString(section, _T("VDOutputFile"), _T(""));
DesktopNumber = _ttoi(ReadConfigString(section, _T("VDDesktop"), _T("0")));
Width = _ttoi(ReadConfigString(section, _T("VDWidth"), _T("0")));
Height = _ttoi(ReadConfigString(section, _T("VDHeight"), _T("0")));
RefreshOnUpdate = _ttoi(ReadConfigString(section, _T("VDRefreshOnUpdate"), _T("0")));
DexpotMeasure::Initialize(iniFile, section);
return 0;
}
UINT DexpotScreenshotMeasure::Update()
{
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if (RefreshOnUpdate && (DesktopNumber == 0 || DesktopNumber == CurrentDesktop))
{
UpdateScreenshot();
}
return 0;
}
LPCTSTR DexpotScreenshotMeasure::GetString(UINT flags)
{
return OutputFile.c_str();
}
void DexpotScreenshotMeasure::InitializeData()
{
UpdateScreenshot();
}
void DexpotScreenshotMeasure::OnSwitched(int FromDesktop, int ToDesktop, WORD Flags, WORD Trigger)
{
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if (DesktopNumber == FromDesktop || DesktopNumber == 0)
{
UpdateScreenshot();
}
}
void DexpotScreenshotMeasure::UpdateScreenshot()
{
int Desktop = DesktopNumber == 0 ? CurrentDesktop : DesktopNumber;
int nBytes = 0;
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BYTE *pBytes = NULL;
HANDLE fm;
HANDLE mutex;
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if (!IsWindow(hWndDexpot)) return;
int DesktopWidth = (int) SendMessage(hWndDexpot, DEX_GETDESKTOPWIDTH, Desktop, 0);
int DesktopHeight = (int) SendMessage(hWndDexpot, DEX_GETDESKTOPHEIGHT, Desktop, 0);
mutex = OpenMutex(SYNCHRONIZE, FALSE, _T("DexpotScreenshotMutex"));
WaitForSingleObject(mutex, 2000);
fm = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, 0, DesktopWidth * DesktopHeight * 4, L"Local\\DexpotScreenshotFilemap");
pBytes = (BYTE*) MapViewOfFile(fm, FILE_MAP_ALL_ACCESS, 0, 0, 0);
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if (pBytes) nBytes = (int) SendMessage(hWndDexpot, DEX_GETSCREENSHOT, Desktop, 0);
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if (nBytes > 0 && nBytes == DesktopWidth * DesktopHeight * 4)
{
HDC ScreenDC;
HDC MemDC;
HDC MemDC2;
HBITMAP OriginalBitmap;
HBITMAP ScaledBitmap;
HGDIOBJ OldBitmap;
HGDIOBJ OldBitmap2;
BYTE *ScaledBytes;
BITMAPINFO bmi;
BITMAPFILEHEADER bmfh;
int ScaledHeight = Height;
int ScaledWidth = Width;
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if (ScaledHeight == 0) ScaledHeight = (int) ((float) DesktopHeight * (ScaledWidth / (float) DesktopWidth) + .5f);
if (ScaledWidth == 0) ScaledWidth = (int) ((float) DesktopWidth * (ScaledHeight / (float) DesktopHeight) + .5f);
if (ScaledHeight == 0) ScaledHeight = DesktopHeight;
if (ScaledWidth == 0) ScaledWidth = DesktopWidth;
ZeroMemory(&bmi.bmiHeader, sizeof(BITMAPINFOHEADER));
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = DesktopWidth;
bmi.bmiHeader.biHeight = DesktopHeight;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = nBytes;
ScreenDC = GetDC(NULL);
MemDC = CreateCompatibleDC(ScreenDC);
MemDC2 = CreateCompatibleDC(ScreenDC);
OriginalBitmap = CreateCompatibleBitmap(ScreenDC, DesktopWidth, DesktopHeight);
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SetDIBits(MemDC2, OriginalBitmap, 0, DesktopHeight, pBytes, &bmi, 0);
OldBitmap2 = SelectObject(MemDC2, (HGDIOBJ) OriginalBitmap);
nBytes = ScaledWidth * ScaledHeight * 4;
bmi.bmiHeader.biWidth = ScaledWidth;
bmi.bmiHeader.biHeight = ScaledHeight;
bmi.bmiHeader.biSizeImage = nBytes;
ScaledBitmap = CreateDIBSection(MemDC, &bmi, 0, (void**) &ScaledBytes, NULL, 0);
OldBitmap = SelectObject(MemDC, (HGDIOBJ) ScaledBitmap);
SetStretchBltMode(MemDC, HALFTONE);
StretchBlt(MemDC, 0, 0, ScaledWidth, ScaledHeight, MemDC2, 0, 0, DesktopWidth, DesktopHeight, SRCCOPY);
GdiFlush();
ZeroMemory(&bmfh, sizeof(BITMAPFILEHEADER));
bmfh.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
bmfh.bfSize = bmfh.bfOffBits + nBytes;
bmfh.bfType = 0x4d42;
std::ofstream ofs(OutputFile.c_str(), std::ios_base::binary);
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if (ofs)
{
ofs.write((char*) &bmfh, sizeof(BITMAPFILEHEADER));
ofs.write((char*) &bmi, sizeof(BITMAPINFOHEADER));
ofs.write((char*) ScaledBytes, nBytes);
ofs.close();
}
SelectObject(MemDC, OldBitmap);
SelectObject(MemDC2, OldBitmap2);
DeleteObject(ScaledBitmap);
DeleteObject(OriginalBitmap);
DeleteDC(MemDC);
DeleteDC(MemDC2);
ReleaseDC(NULL, ScreenDC);
}
UnmapViewOfFile(pBytes);
CloseHandle(fm);
ReleaseMutex(mutex);
CloseHandle(mutex);
}
/*
* DexpotDesktopNameMeasure
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*
*/
DexpotDesktopNameMeasure::DexpotDesktopNameMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
UINT DexpotDesktopNameMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
DesktopNumber = _ttoi(ReadConfigString(section, _T("VDDesktop"), _T("0")));
return DexpotMeasure::Initialize(iniFile, section);
}
LPCTSTR DexpotDesktopNameMeasure::GetString(UINT flags)
{
UINT Desktop = (DesktopNumber == 0 ? CurrentDesktop : DesktopNumber) - 1;
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if (Desktop >= 0 && Desktop < DesktopNames.size())
{
return DesktopNames[Desktop].c_str();
}
else
{
StringBuffer[0] = _T('\0');
return StringBuffer;
}
}
void DexpotDesktopNameMeasure::InitializeData()
{
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if (PluginRegistered)
{
int DesktopCount = (int) SendMessage(hWndDexpot, DEX_GETDESKTOPCOUNT, 0, 0);
DesktopNames.resize(DesktopCount);
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if (DesktopNumber == 0)
{
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for (int i = 1; i <= DesktopCount; i++)
{
SendMessage(hWndDexpot, DEX_GETDESKTOPTITLE, i, (LPARAM) hWndMessageWindow);
}
}
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else if (DesktopNumber > 0 && DesktopNumber <= DesktopCount)
{
SendMessage(hWndDexpot, DEX_GETDESKTOPTITLE, DesktopNumber, (LPARAM) hWndMessageWindow);
}
}
}
void DexpotDesktopNameMeasure::OnDesktopConfigurationChanged()
{
InitializeData();
}
void DexpotDesktopNameMeasure::OnDesktopCountChanged(int NewCount)
{
InitializeData();
}
void DexpotDesktopNameMeasure::SetDesktopName(UINT Desktop, std::wstring &Name)
{
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if (--Desktop >= DesktopNames.size()) DesktopNames.resize(Desktop + 1);
if (Desktop >= 0) DesktopNames[Desktop] = Name;
}
/*
* DexpotDesktopWallpaperMeasure
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*
*/
DexpotDesktopWallpaperMeasure::DexpotDesktopWallpaperMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
UINT DexpotDesktopWallpaperMeasure::Initialize(LPCTSTR iniFile, LPCTSTR section)
{
DesktopNumber = _ttoi(ReadConfigString(section, _T("VDDesktop"), _T("0")));
return DexpotMeasure::Initialize(iniFile, section);
}
LPCTSTR DexpotDesktopWallpaperMeasure::GetString(UINT flags)
{
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if (DesktopNumber == 0)
{
SystemParametersInfo(SPI_GETDESKWALLPAPER, STRINGBUFFER_SIZE, StringBuffer, 0);
return StringBuffer;
}
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else if (DesktopNumber > 0 && (UINT) DesktopNumber <= DesktopWallpapers.size())
{
return DesktopWallpapers[DesktopNumber - 1].c_str();
}
StringBuffer[0] = _T('\0');
return StringBuffer;
}
void DexpotDesktopWallpaperMeasure::InitializeData()
{
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if (PluginRegistered)
{
int DesktopCount = (int) SendMessage(hWndDexpot, DEX_GETDESKTOPCOUNT, 0, 0);
DesktopWallpapers.resize(DesktopCount);
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if (DesktopNumber == 0)
{
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for (int i = 1; i <= DesktopCount; i++)
{
SendMessage(hWndDexpot, DEX_GETDESKTOPWALLPAPER, i, (LPARAM) hWndMessageWindow);
}
}
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else if (DesktopNumber > 0 && DesktopNumber <= DesktopCount)
{
SendMessage(hWndDexpot, DEX_GETDESKTOPWALLPAPER, DesktopNumber, (LPARAM) hWndMessageWindow);
}
}
}
void DexpotDesktopWallpaperMeasure::OnSwitched(int FromDesktop, int ToDesktop, WORD Flags, WORD Trigger)
{
SendMessage(hWndDexpot, DEX_GETDESKTOPWALLPAPER, FromDesktop, (LPARAM) hWndMessageWindow);
}
void DexpotDesktopWallpaperMeasure::OnDesktopConfigurationChanged()
{
InitializeData();
}
void DexpotDesktopWallpaperMeasure::OnDesktopCountChanged(int NewCount)
{
InitializeData();
}
void DexpotDesktopWallpaperMeasure::SetDesktopWallpaper(UINT Desktop, std::wstring &Wallpaper)
{
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if (--Desktop >= DesktopWallpapers.size()) DesktopWallpapers.resize(Desktop + 1);
if (Desktop >= 0) DesktopWallpapers[Desktop] = Wallpaper;
}
/*
* DexpotCommandMeasure
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*
*/
DexpotCommandMeasure::DexpotCommandMeasure(HMODULE instance, UINT id) : DexpotMeasure(instance, id) {}
void DexpotCommandMeasure::ExecuteBang(LPCTSTR args)
{
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if (PluginRegistered)
{
COPYDATASTRUCT cds;
cds.dwData = DEX_DEXPOTCOMMAND;
cds.lpData = (PVOID) args;
cds.cbData = (DWORD) (_tcslen(args) + 1) * sizeof(TCHAR);
SendMessage(hWndDexpot, WM_COPYDATA, (WPARAM) hWndMessageWindow, (LPARAM) &cds);
}
}