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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// -=- WMPoller.cxx
#include <rfb_win32/WMPoller.h>
#include <rfb/Exception.h>
#include <rfb/LogWriter.h>
#include <rfb/Configuration.h>
#include <tchar.h>
using namespace rfb;
using namespace rfb::win32;
static LogWriter vlog("WMPoller");
BoolParameter rfb::win32::WMPoller::poll_console_windows("PollConsoleWindows",
"Server should poll console windows for updates", true);
// -=- WMPoller class
bool
rfb::win32::WMPoller::processEvent() {
PollInfo info;
if (poll_console_windows && ut) {
::EnumWindows(WMPoller::enumWindowProc, (LPARAM) &info);
ut->add_changed(info.poll_include);
}
return false;
}
bool
rfb::win32::WMPoller::setUpdateTracker(UpdateTracker* ut_) {
ut = ut_;
return true;
}
bool
rfb::win32::WMPoller::checkPollWindow(HWND w) {
TCHAR buffer[128];
if (!GetClassName(w, buffer, 128))
throw rdr::SystemException("unable to get window class:%u", GetLastError());
if ((_tcscmp(buffer, _T("tty")) != 0) &&
(_tcscmp(buffer, _T("ConsoleWindowClass")) != 0)) {
return false;
}
return true;
}
void
rfb::win32::WMPoller::pollWindow(HWND w, PollInfo* i) {
RECT r;
if (IsWindowVisible(w) && GetWindowRect(w, &r)) {
if (IsRectEmpty(&r)) return;
Region wrgn(Rect(r.left, r.top, r.right, r.bottom));
if (checkPollWindow(w)) {
wrgn.assign_subtract(i->poll_exclude);
i->poll_include.assign_union(wrgn);
} else {
i->poll_exclude.assign_union(wrgn);
}
}
}
BOOL CALLBACK
rfb::win32::WMPoller::enumWindowProc(HWND w, LPARAM lp) {
pollWindow(w, (PollInfo*)lp);
return TRUE;
}
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