mirror of
https://github.com/kasmtech/KasmVNC.git
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86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software 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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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- WMPoller.cxx
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#include <rfb_win32/WMPoller.h>
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#include <rfb/Exception.h>
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#include <rfb/LogWriter.h>
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#include <rfb/Configuration.h>
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#include <tchar.h>
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using namespace rfb;
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using namespace rfb::win32;
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static LogWriter vlog("WMPoller");
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BoolParameter rfb::win32::WMPoller::poll_console_windows("PollConsoleWindows",
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"Server should poll console windows for updates", true);
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// -=- WMPoller class
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bool
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rfb::win32::WMPoller::processEvent() {
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PollInfo info;
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if (poll_console_windows && ut) {
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::EnumWindows(WMPoller::enumWindowProc, (LPARAM) &info);
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ut->add_changed(info.poll_include);
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}
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return false;
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}
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bool
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rfb::win32::WMPoller::setUpdateTracker(UpdateTracker* ut_) {
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ut = ut_;
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return true;
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}
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bool
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rfb::win32::WMPoller::checkPollWindow(HWND w) {
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TCHAR buffer[128];
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if (!GetClassName(w, buffer, 128))
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throw rdr::SystemException("unable to get window class:%u", GetLastError());
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if ((_tcscmp(buffer, _T("tty")) != 0) &&
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(_tcscmp(buffer, _T("ConsoleWindowClass")) != 0)) {
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return false;
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}
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return true;
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}
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void
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rfb::win32::WMPoller::pollWindow(HWND w, PollInfo* i) {
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RECT r;
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if (IsWindowVisible(w) && GetWindowRect(w, &r)) {
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if (IsRectEmpty(&r)) return;
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Region wrgn(Rect(r.left, r.top, r.right, r.bottom));
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if (checkPollWindow(w)) {
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wrgn.assign_subtract(i->poll_exclude);
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i->poll_include.assign_union(wrgn);
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} else {
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i->poll_exclude.assign_union(wrgn);
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}
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}
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}
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BOOL CALLBACK
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rfb::win32::WMPoller::enumWindowProc(HWND w, LPARAM lp) {
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pollWindow(w, (PollInfo*)lp);
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return TRUE;
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}
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