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Work-around Win7 bug. 

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2020-04-03 13:01:44 +08:00
parent 84d6b03539
commit 138f9abd54
1 changed files with 15 additions and 2 deletions
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17
winnativeeventfilter.cpp
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@ -448,8 +448,21 @@ bool WinNativeEventFilter::nativeEventFilter(const QByteArray &eventType,
const RECT rcWorkArea = monitorInfo.rcWork; const RECT rcWorkArea = monitorInfo.rcWork;
const RECT rcMonitorArea = monitorInfo.rcMonitor; const RECT rcMonitorArea = monitorInfo.rcMonitor;
auto &mmi = *reinterpret_cast<LPMINMAXINFO>(msg->lParam); auto &mmi = *reinterpret_cast<LPMINMAXINFO>(msg->lParam);
mmi.ptMaxPosition.x = qAbs(rcWorkArea.left - rcMonitorArea.left); // rcWorkArea = rcMonitorArea - <the taskbar area>
mmi.ptMaxPosition.y = qAbs(rcWorkArea.top - rcMonitorArea.top); // In theory, we should consider the taskbar when our window is
// maximized, however, it's buggy on Windows 7:
// If you use the rcWorkArea to cut-off the taskbar area from
// rcMonitorArea, the window will leave a double-width area.
// Why? Windows 10 seems to work fine.
// TODO: Find out whether Windows 8 and 8.1 have this issue or not.
if (QOperatingSystemVersion::current()
> QOperatingSystemVersion::Windows7) {
mmi.ptMaxPosition.x = qAbs(rcWorkArea.left - rcMonitorArea.left);
mmi.ptMaxPosition.y = qAbs(rcWorkArea.top - rcMonitorArea.top);
} else {
mmi.ptMaxPosition.x = rcMonitorArea.left;
mmi.ptMaxPosition.y = rcMonitorArea.top;
}
mmi.ptMaxSize.x = qAbs(rcWorkArea.right - rcWorkArea.left); mmi.ptMaxSize.x = qAbs(rcWorkArea.right - rcWorkArea.left);
mmi.ptMaxSize.y = qAbs(rcWorkArea.bottom - rcWorkArea.top); mmi.ptMaxSize.y = qAbs(rcWorkArea.bottom - rcWorkArea.top);
mmi.ptMaxTrackSize.x = mmi.ptMaxSize.x; mmi.ptMaxTrackSize.x = mmi.ptMaxSize.x;