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framelesshelper
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Update. 

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2020-04-03 20:38:19 +08:00
parent 138f9abd54
commit a13fd29994
1 changed files with 11 additions and 22 deletions
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25
winnativeeventfilter.cpp
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@ -17,7 +17,7 @@
Q_DECLARE_METATYPE(QMargins) Q_DECLARE_METATYPE(QMargins)
#ifndef USER_DEFAULT_SCREEN_DPI #ifndef USER_DEFAULT_SCREEN_DPI
// FIXME: Since which version? // Only available since Windows Vista
#define USER_DEFAULT_SCREEN_DPI 96 #define USER_DEFAULT_SCREEN_DPI 96
#endif #endif
@ -42,7 +42,7 @@ Q_DECLARE_METATYPE(QMargins)
#endif #endif
#ifndef WM_DPICHANGED #ifndef WM_DPICHANGED
// Only available since Windows 8.1 // Only available since Windows 7
#define WM_DPICHANGED 0x02E0 #define WM_DPICHANGED 0x02E0
#endif #endif
@ -448,21 +448,8 @@ 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);
// rcWorkArea = rcMonitorArea - <the taskbar area>
// 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.x = qAbs(rcWorkArea.left - rcMonitorArea.left);
mmi.ptMaxPosition.y = qAbs(rcWorkArea.top - rcMonitorArea.top); 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;
@ -513,7 +500,7 @@ bool WinNativeEventFilter::nativeEventFilter(const QByteArray &eventType,
// dpiX and dpiY are identical. Just to silence a compiler warning. // dpiX and dpiY are identical. Just to silence a compiler warning.
const auto dpi = dpiX == dpiY ? dpiY : dpiX; const auto dpi = dpiX == dpiY ? dpiY : dpiX;
qDebug().noquote() << "Window DPI changed: new DPI -->" << dpi qDebug().noquote() << "Window DPI changed: new DPI -->" << dpi
<< "new DPR -->" << ", new DPR -->"
<< qreal(dpi) / qreal(USER_DEFAULT_SCREEN_DPI); << qreal(dpi) / qreal(USER_DEFAULT_SCREEN_DPI);
#if 0 #if 0
const auto prcNewWindow = reinterpret_cast<LPRECT const>(msg->lParam); const auto prcNewWindow = reinterpret_cast<LPRECT const>(msg->lParam);
@ -853,7 +840,8 @@ void WinNativeEventFilter::initDLLs() {
user32Lib.resolve("GetDpiForSystem")); user32Lib.resolve("GetDpiForSystem"));
} }
if (!m_GetSystemMetricsForDpi) { if (!m_GetSystemMetricsForDpi) {
m_GetSystemMetricsForDpi = reinterpret_cast<lpGetSystemMetricsForDpi>( m_GetSystemMetricsForDpi =
reinterpret_cast<lpGetSystemMetricsForDpi>(
user32Lib.resolve("GetSystemMetricsForDpi")); user32Lib.resolve("GetSystemMetricsForDpi"));
} }
} }
@ -862,7 +850,8 @@ void WinNativeEventFilter::initDLLs() {
QOperatingSystemVersion(QOperatingSystemVersion::Windows, 10, 0, QOperatingSystemVersion(QOperatingSystemVersion::Windows, 10, 0,
17134)) { 17134)) {
if (!m_GetSystemDpiForProcess) { if (!m_GetSystemDpiForProcess) {
m_GetSystemDpiForProcess = reinterpret_cast<lpGetSystemDpiForProcess>( m_GetSystemDpiForProcess =
reinterpret_cast<lpGetSystemDpiForProcess>(
user32Lib.resolve("GetSystemDpiForProcess")); user32Lib.resolve("GetSystemDpiForProcess"));
} }
} }