From e0b59294fc9e9dc8198b8c504860353b6bec0124 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周二, 07 5月 2024 21:14:12 +0800
Subject: [PATCH] Implement Windows SysMenu handling
---
src/core/contexts/win32windowcontext.cpp | 390 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 370 insertions(+), 20 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 811fd44..287901a 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -33,6 +33,304 @@
#include "qwkglobal_p.h"
#include "qwkwindowsextra_p.h"
+static QHash<int, const wchar_t *> xmsgHash = //
+ {
+ //
+ {0, L"WM_NULL" },
+ {1, L"WM_CREATE" },
+ {2, L"WM_DESTROY" },
+ {3, L"WM_MOVE" },
+ {5, L"WM_SIZE" },
+ {6, L"WM_ACTIVATE" },
+ {7, L"WM_SETFOCUS" },
+ {8, L"WM_KILLFOCUS" },
+ {10, L"WM_ENABLE" },
+ {11, L"WM_SETREDRAW" },
+ {12, L"WM_SETTEXT" },
+ {13, L"WM_GETTEXT" },
+ {14, L"WM_GETTEXTLENGTH" },
+ {15, L"WM_PAINT" },
+ {16, L"WM_CLOSE" },
+ {17, L"WM_QUERYENDSESSION" },
+ {18, L"WM_QUIT" },
+ {19, L"WM_QUERYOPEN" },
+ {20, L"WM_ERASEBKGND" },
+ {21, L"WM_SYSCOLORCHANGE" },
+ {22, L"WM_ENDSESSION" },
+ {24, L"WM_SHOWWINDOW" },
+ {25, L"WM_CTLCOLOR" },
+ {26, L"WM_WININICHANGE" },
+ {27, L"WM_DEVMODECHANGE" },
+ {28, L"WM_ACTIVATEAPP" },
+ {29, L"WM_FONTCHANGE" },
+ {30, L"WM_TIMECHANGE" },
+ {31, L"WM_CANCELMODE" },
+ {32, L"WM_SETCURSOR" },
+ {33, L"WM_MOUSEACTIVATE" },
+ {34, L"WM_CHILDACTIVATE" },
+ {35, L"WM_QUEUESYNC" },
+ {36, L"WM_GETMINMAXINFO" },
+ {38, L"WM_PAINTICON" },
+ {39, L"WM_ICONERASEBKGND" },
+ {40, L"WM_NEXTDLGCTL" },
+ {42, L"WM_SPOOLERSTATUS" },
+ {43, L"WM_DRAWITEM" },
+ {44, L"WM_MEASUREITEM" },
+ {45, L"WM_DELETEITEM" },
+ {46, L"WM_VKEYTOITEM" },
+ {47, L"WM_CHARTOITEM" },
+ {48, L"WM_SETFONT" },
+ {49, L"WM_GETFONT" },
+ {50, L"WM_SETHOTKEY" },
+ {51, L"WM_GETHOTKEY" },
+ {55, L"WM_QUERYDRAGICON" },
+ {57, L"WM_COMPAREITEM" },
+ {61, L"WM_GETOBJECT" },
+ {65, L"WM_COMPACTING" },
+ {68, L"WM_COMMNOTIFY" },
+ {70, L"WM_WINDOWPOSCHANGING" },
+ {71, L"WM_WINDOWPOSCHANGED" },
+ {72, L"WM_POWER" },
+ {73, L"WM_COPYGLOBALDATA" },
+ {74, L"WM_COPYDATA" },
+ {75, L"WM_CANCELJOURNAL" },
+ {78, L"WM_NOTIFY" },
+ {80, L"WM_INPUTLANGCHANGEREQUEST"},
+ {81, L"WM_INPUTLANGCHANGE" },
+ {82, L"WM_TCARD" },
+ {83, L"WM_HELP" },
+ {84, L"WM_USERCHANGED" },
+ {85, L"WM_NOTIFYFORMAT" },
+ {123, L"WM_CONTEXTMENU" },
+ {124, L"WM_STYLECHANGING" },
+ {125, L"WM_STYLECHANGED" },
+ {126, L"WM_DISPLAYCHANGE" },
+ {127, L"WM_GETICON" },
+ {128, L"WM_SETICON" },
+ {129, L"WM_NCCREATE" },
+ {130, L"WM_NCDESTROY" },
+ {131, L"WM_NCCALCSIZE" },
+ {132, L"WM_NCHITTEST" },
+ {133, L"WM_NCPAINT" },
+ {134, L"WM_NCACTIVATE" },
+ {135, L"WM_GETDLGCODE" },
+ {136, L"WM_SYNCPAINT" },
+ {160, L"WM_NCMOUSEMOVE" },
+ {161, L"WM_NCLBUTTONDOWN" },
+ {162, L"WM_NCLBUTTONUP" },
+ {163, L"WM_NCLBUTTONDBLCLK" },
+ {164, L"WM_NCRBUTTONDOWN" },
+ {165, L"WM_NCRBUTTONUP" },
+ {166, L"WM_NCRBUTTONDBLCLK" },
+ {167, L"WM_NCMBUTTONDOWN" },
+ {168, L"WM_NCMBUTTONUP" },
+ {169, L"WM_NCMBUTTONDBLCLK" },
+ {171, L"WM_NCXBUTTONDOWN" },
+ {172, L"WM_NCXBUTTONUP" },
+ {173, L"WM_NCXBUTTONDBLCLK" },
+ {176, L"EM_GETSEL" },
+ {177, L"EM_SETSEL" },
+ {178, L"EM_GETRECT" },
+ {179, L"EM_SETRECT" },
+ {180, L"EM_SETRECTNP" },
+ {181, L"EM_SCROLL" },
+ {182, L"EM_LINESCROLL" },
+ {183, L"EM_SCROLLCARET" },
+ {185, L"EM_GETMODIFY" },
+ {187, L"EM_SETMODIFY" },
+ {188, L"EM_GETLINECOUNT" },
+ {189, L"EM_LINEINDEX" },
+ {190, L"EM_SETHANDLE" },
+ {191, L"EM_GETHANDLE" },
+ {192, L"EM_GETTHUMB" },
+ {193, L"EM_LINELENGTH" },
+ {194, L"EM_REPLACESEL" },
+ {195, L"EM_SETFONT" },
+ {196, L"EM_GETLINE" },
+ {197, L"EM_LIMITTEXT" },
+ {197, L"EM_SETLIMITTEXT" },
+ {198, L"EM_CANUNDO" },
+ {199, L"EM_UNDO" },
+ {200, L"EM_FMTLINES" },
+ {201, L"EM_LINEFROMCHAR" },
+ {202, L"EM_SETWORDBREAK" },
+ {203, L"EM_SETTABSTOPS" },
+ {204, L"EM_SETPASSWORDCHAR" },
+ {205, L"EM_EMPTYUNDOBUFFER" },
+ {206, L"EM_GETFIRSTVISIBLELINE" },
+ {207, L"EM_SETREADONLY" },
+ {209, L"EM_SETWORDBREAKPROC" },
+ {209, L"EM_GETWORDBREAKPROC" },
+ {210, L"EM_GETPASSWORDCHAR" },
+ {211, L"EM_SETMARGINS" },
+ {212, L"EM_GETMARGINS" },
+ {213, L"EM_GETLIMITTEXT" },
+ {214, L"EM_POSFROMCHAR" },
+ {215, L"EM_CHARFROMPOS" },
+ {216, L"EM_SETIMESTATUS" },
+ {217, L"EM_GETIMESTATUS" },
+ {224, L"SBM_SETPOS" },
+ {225, L"SBM_GETPOS" },
+ {226, L"SBM_SETRANGE" },
+ {227, L"SBM_GETRANGE" },
+ {228, L"SBM_ENABLE_ARROWS" },
+ {230, L"SBM_SETRANGEREDRAW" },
+ {233, L"SBM_SETSCROLLINFO" },
+ {234, L"SBM_GETSCROLLINFO" },
+ {235, L"SBM_GETSCROLLBARINFO" },
+ {240, L"BM_GETCHECK" },
+ {241, L"BM_SETCHECK" },
+ {242, L"BM_GETSTATE" },
+ {243, L"BM_SETSTATE" },
+ {244, L"BM_SETSTYLE" },
+ {245, L"BM_CLICK" },
+ {246, L"BM_GETIMAGE" },
+ {247, L"BM_SETIMAGE" },
+ {248, L"BM_SETDONTCLICK" },
+ {255, L"WM_INPUT" },
+ {256, L"WM_KEYDOWN" },
+ {256, L"WM_KEYFIRST" },
+ {257, L"WM_KEYUP" },
+ {258, L"WM_CHAR" },
+ {259, L"WM_DEADCHAR" },
+ {260, L"WM_SYSKEYDOWN" },
+ {261, L"WM_SYSKEYUP" },
+ {262, L"WM_SYSCHAR" },
+ {263, L"WM_SYSDEADCHAR" },
+ {264, L"WM_KEYLAST" },
+ {265, L"WM_UNICHAR" },
+ {265, L"WM_WNT_CONVERTREQUESTEX" },
+ {266, L"WM_CONVERTREQUEST" },
+ {267, L"WM_CONVERTRESULT" },
+ {268, L"WM_INTERIM" },
+ {269, L"WM_IME_STARTCOMPOSITION" },
+ {270, L"WM_IME_ENDCOMPOSITION" },
+ {271, L"WM_IME_COMPOSITION" },
+ {271, L"WM_IME_KEYLAST" },
+ {272, L"WM_INITDIALOG" },
+ {273, L"WM_COMMAND" },
+ {274, L"WM_SYSCOMMAND" },
+ {275, L"WM_TIMER" },
+ {276, L"WM_HSCROLL" },
+ {277, L"WM_VSCROLL" },
+ {278, L"WM_INITMENU" },
+ {279, L"WM_INITMENUPOPUP" },
+ {280, L"WM_SYSTIMER" },
+ {287, L"WM_MENUSELECT" },
+ {288, L"WM_MENUCHAR" },
+ {289, L"WM_ENTERIDLE" },
+ {290, L"WM_MENURBUTTONUP" },
+ {291, L"WM_MENUDRAG" },
+ {292, L"WM_MENUGETOBJECT" },
+ {293, L"WM_UNINITMENUPOPUP" },
+ {294, L"WM_MENUCOMMAND" },
+ {295, L"WM_CHANGEUISTATE" },
+ {296, L"WM_UPDATEUISTATE" },
+ {297, L"WM_QUERYUISTATE" },
+ {306, L"WM_CTLCOLORMSGBOX" },
+ {307, L"WM_CTLCOLOREDIT" },
+ {308, L"WM_CTLCOLORLISTBOX" },
+ {309, L"WM_CTLCOLORBTN" },
+ {310, L"WM_CTLCOLORDLG" },
+ {311, L"WM_CTLCOLORSCROLLBAR" },
+ {312, L"WM_CTLCOLORSTATIC" },
+ {512, L"WM_MOUSEFIRST" },
+ {512, L"WM_MOUSEMOVE" },
+ {513, L"WM_LBUTTONDOWN" },
+ {514, L"WM_LBUTTONUP" },
+ {515, L"WM_LBUTTONDBLCLK" },
+ {516, L"WM_RBUTTONDOWN" },
+ {517, L"WM_RBUTTONUP" },
+ {518, L"WM_RBUTTONDBLCLK" },
+ {519, L"WM_MBUTTONDOWN" },
+ {520, L"WM_MBUTTONUP" },
+ {521, L"WM_MBUTTONDBLCLK" },
+ {521, L"WM_MOUSELAST" },
+ {522, L"WM_MOUSEWHEEL" },
+ {523, L"WM_XBUTTONDOWN" },
+ {524, L"WM_XBUTTONUP" },
+ {525, L"WM_XBUTTONDBLCLK" },
+ {528, L"WM_PARENTNOTIFY" },
+ {529, L"WM_ENTERMENULOOP" },
+ {530, L"WM_EXITMENULOOP" },
+ {531, L"WM_NEXTMENU" },
+ {532, L"WM_SIZING" },
+ {533, L"WM_CAPTURECHANGED" },
+ {534, L"WM_MOVING" },
+ {536, L"WM_POWERBROADCAST" },
+ {537, L"WM_DEVICECHANGE" },
+ {544, L"WM_MDICREATE" },
+ {545, L"WM_MDIDESTROY" },
+ {546, L"WM_MDIACTIVATE" },
+ {547, L"WM_MDIRESTORE" },
+ {548, L"WM_MDINEXT" },
+ {549, L"WM_MDIMAXIMIZE" },
+ {550, L"WM_MDITILE" },
+ {551, L"WM_MDICASCADE" },
+ {552, L"WM_MDIICONARRANGE" },
+ {553, L"WM_MDIGETACTIVE" },
+ {560, L"WM_MDISETMENU" },
+ {561, L"WM_ENTERSIZEMOVE" },
+ {562, L"WM_EXITSIZEMOVE" },
+ {563, L"WM_DROPFILES" },
+ {564, L"WM_MDIREFRESHMENU" },
+ {640, L"WM_IME_REPORT" },
+ {641, L"WM_IME_SETCONTEXT" },
+ {642, L"WM_IME_NOTIFY" },
+ {643, L"WM_IME_CONTROL" },
+ {644, L"WM_IME_COMPOSITIONFULL" },
+ {645, L"WM_IME_SELECT" },
+ {646, L"WM_IME_CHAR" },
+ {648, L"WM_IME_REQUEST" },
+ {656, L"WM_IMEKEYDOWN" },
+ {656, L"WM_IME_KEYDOWN" },
+ {657, L"WM_IMEKEYUP" },
+ {657, L"WM_IME_KEYUP" },
+ {672, L"WM_NCMOUSEHOVER" },
+ {673, L"WM_MOUSEHOVER" },
+ {674, L"WM_NCMOUSELEAVE" },
+ {675, L"WM_MOUSELEAVE" },
+ {768, L"WM_CUT" },
+ {769, L"WM_COPY" },
+ {770, L"WM_PASTE" },
+ {771, L"WM_CLEAR" },
+ {772, L"WM_UNDO" },
+ {773, L"WM_RENDERFORMAT" },
+ {774, L"WM_RENDERALLFORMATS" },
+ {775, L"WM_DESTROYCLIPBOARD" },
+ {776, L"WM_DRAWCLIPBOARD" },
+ {777, L"WM_PAINTCLIPBOARD" },
+ {778, L"WM_VSCROLLCLIPBOARD" },
+ {779, L"WM_SIZECLIPBOARD" },
+ {780, L"WM_ASKCBFORMATNAME" },
+ {781, L"WM_CHANGECBCHAIN" },
+ {782, L"WM_HSCROLLCLIPBOARD" },
+ {783, L"WM_QUERYNEWPALETTE" },
+ {784, L"WM_PALETTEISCHANGING" },
+ {785, L"WM_PALETTECHANGED" },
+ {786, L"WM_HOTKEY" },
+ {791, L"WM_PRINT" },
+ {792, L"WM_PRINTCLIENT" },
+ {793, L"WM_APPCOMMAND" },
+ {856, L"WM_HANDHELDFIRST" },
+ {863, L"WM_HANDHELDLAST" },
+ {864, L"WM_AFXFIRST" },
+ {895, L"WM_AFXLAST" },
+ {896, L"WM_PENWINFIRST" },
+ {897, L"WM_RCRESULT" },
+ {898, L"WM_HOOKRCRESULT" },
+ {899, L"WM_GLOBALRCCHANGE" },
+ {899, L"WM_PENMISCINFO" },
+ {900, L"WM_SKB" },
+ {901, L"WM_HEDITCTL" },
+ {901, L"WM_PENCTL" },
+ {902, L"WM_PENMISC" },
+ {903, L"WM_CTLINIT" },
+ {904, L"WM_PENEVENT" },
+ {911, L"WM_PENWINLAST" },
+ {1024, L"WM_USER" },
+};
+
namespace QWK {
// The thickness of an auto-hide taskbar in pixels.
@@ -233,14 +531,15 @@
apis.ptimeEndPeriod(ms_granularity);
}
- static void showSystemMenu2(HWND hWnd, const POINT &pos, const bool selectFirstEntry,
- const bool fixedSize) {
+ // Returns false if the menu is canceled
+ static bool showSystemMenu_sys(HWND hWnd, const POINT &pos, const bool selectFirstEntry,
+ const bool fixedSize) {
HMENU hMenu = ::GetSystemMenu(hWnd, FALSE);
if (!hMenu) {
// The corresponding window doesn't have a system menu, most likely due to the
// lack of the "WS_SYSMENU" window style. This situation should not be treated
// as an error so just ignore it and return early.
- return;
+ return true;
}
const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
@@ -284,7 +583,8 @@
// Popup the system menu at the required position.
const auto result = ::TrackPopupMenu(
hMenu,
- (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN)),
+ (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN) |
+ TPM_RIGHTBUTTON),
pos.x, pos.y, 0, hWnd, nullptr);
// Unhighlight the first menu item after the popup menu is closed, otherwise it will keep
@@ -293,11 +593,12 @@
if (!result) {
// The user canceled the menu, no need to continue.
- return;
+ return false;
}
// Send the command that the user chooses to the corresponding window.
::PostMessageW(hWnd, WM_SYSCOMMAND, result, 0);
+ return true;
}
static inline Win32WindowContext::WindowPart getHitWindowPart(int hitTestResult) {
@@ -659,7 +960,9 @@
}
}
- Win32WindowContext::Win32WindowContext() : AbstractWindowContext() {
+ Win32WindowContext::Win32WindowContext()
+ : AbstractWindowContext(), lastHitTestResult(WindowPart::Outside),
+ lastHitTestResultRaw(HTNOWHERE), mouseLeaveBlocked(false), iconButtonClickTime(0) {
}
Win32WindowContext::~Win32WindowContext() {
@@ -694,8 +997,8 @@
#else
const QPoint nativeGlobalPos = QHighDpi::toNativePixels(pos, m_windowHandle);
#endif
- showSystemMenu2(hWnd, qpoint2point(nativeGlobalPos), false,
- m_delegate->isHostSizeFixed(m_host));
+ std::ignore = showSystemMenu_sys(hWnd, qpoint2point(nativeGlobalPos), false,
+ m_delegate->isHostSizeFixed(m_host));
return;
}
@@ -813,7 +1116,6 @@
? int(getWindowFrameBorderThickness(reinterpret_cast<HWND>(m_windowId)))
: 0;
}
-
return AbstractWindowContext::windowAttribute(key);
}
@@ -821,6 +1123,7 @@
// Reset the context data
mouseLeaveBlocked = false;
lastHitTestResult = WindowPart::Outside;
+ lastHitTestResultRaw = HTNOWHERE;
if (!isSystemBorderEnabled()) {
m_delegate->setWindowFlags(m_host, m_delegate->getWindowFlags(m_host) |
@@ -884,6 +1187,9 @@
if (!isValidWindow(hWnd, false, true)) {
return false;
}
+
+ // qDebug().noquote() << QString::fromWCharArray(xmsgHash.value(message, L"")) << Qt::hex
+ // << message;
// Test snap layout
if (snapLayoutHandler(hWnd, message, wParam, lParam, result)) {
@@ -1299,9 +1605,8 @@
case WM_NCPOINTERUP:
#endif
case WM_NCMOUSEHOVER: {
- const WindowPart currentWindowPart = lastHitTestResult;
if (message == WM_NCMOUSEMOVE) {
- if (currentWindowPart != WindowPart::ChromeButton) {
+ if (lastHitTestResult != WindowPart::ChromeButton) {
// https://github.com/qt/qtbase/blob/e26a87f1ecc40bc8c6aa5b889fce67410a57a702/src/widgets/kernel/qwidgetwindow.cpp#L472
// When the mouse press event arrives, QWidgetWindow will implicitly grab
// the top widget right under the mouse, and set `qt_button_down` to this
@@ -1360,14 +1665,28 @@
}
}
- if (currentWindowPart == WindowPart::ChromeButton) {
- emulateClientAreaMessage(hWnd, message, wParam, lParam);
+ if (lastHitTestResult == WindowPart::ChromeButton) {
if (message == WM_NCMOUSEMOVE) {
// ### FIXME FIXME FIXME
// ### FIXME: Calling DefWindowProc() here is really dangerous, investigate
// how to avoid doing this.
// ### FIXME FIXME FIXME
*result = ::DefWindowProcW(hWnd, WM_NCMOUSEMOVE, wParam, lParam);
+ } else if (lastHitTestResultRaw == HTSYSMENU) {
+ if (message == WM_NCLBUTTONDOWN) {
+ // A message of WM_SYSCOMMAND with SC_MOUSEMENU will be sent by Windows,
+ // and the current control flow will be blocked by the menu while
+ // Windows will create and execute a new event loop until the menu
+ // returns
+ iconButtonClickTime = ::GetTickCount64();
+ *result = ::DefWindowProcW(hWnd, message, wParam, lParam);
+ iconButtonClickTime = 0;
+ } else if (message == WM_NCLBUTTONDBLCLK) {
+ // A message of WM_SYSCOMMAND with SC_CLOSE will be sent by Windows
+ *result = ::DefWindowProcW(hWnd, message, wParam, lParam);
+ } else {
+ *result = FALSE;
+ }
} else {
// According to MSDN, we should return non-zero for X button messages to
// indicate we have handled these messages (due to historical reasons), for
@@ -1377,6 +1696,7 @@
? TRUE
: FALSE);
}
+ emulateClientAreaMessage(hWnd, message, wParam, lParam);
return true;
}
break;
@@ -1505,7 +1825,8 @@
// color, our homemade top border can almost have exactly the same
// appearance with the system's one.
[[maybe_unused]] const auto &hitTestRecorder = qScopeGuard([this, result]() {
- lastHitTestResult = getHitWindowPart(int(*result)); //
+ lastHitTestResultRaw = int(*result);
+ lastHitTestResult = getHitWindowPart(lastHitTestResultRaw);
});
POINT nativeGlobalPos{GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
@@ -2054,6 +2375,7 @@
bool shouldShowSystemMenu = false;
bool broughtByKeyboard = false;
POINT nativeGlobalPos{};
+
switch (message) {
case WM_RBUTTONUP: {
const POINT nativeLocalPos = getNativePosFromMouse();
@@ -2075,10 +2397,20 @@
}
case WM_SYSCOMMAND: {
const WPARAM filteredWParam = (wParam & 0xFFF0);
- if ((filteredWParam == SC_KEYMENU) && (lParam == VK_SPACE)) {
- shouldShowSystemMenu = true;
- broughtByKeyboard = true;
- nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ switch (filteredWParam) {
+ case SC_MOUSEMENU:
+ shouldShowSystemMenu = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ break;
+ case SC_KEYMENU:
+ if (lParam == VK_SPACE) {
+ shouldShowSystemMenu = true;
+ broughtByKeyboard = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ }
+ break;
+ default:
+ break;
}
break;
}
@@ -2097,8 +2429,26 @@
break;
}
if (shouldShowSystemMenu) {
- showSystemMenu2(hWnd, nativeGlobalPos, broughtByKeyboard,
- m_delegate->isHostSizeFixed(m_host));
+ bool res = showSystemMenu_sys(hWnd, nativeGlobalPos, broughtByKeyboard,
+ m_delegate->isHostSizeFixed(m_host));
+
+ // Check time
+ static uint32_t doubleClickTime = ::GetDoubleClickTime();
+ if (!res && iconButtonClickTime != 0 &&
+ ::GetTickCount64() - iconButtonClickTime <= doubleClickTime) {
+ POINT nativeGlobalPos;
+ ::GetCursorPos(&nativeGlobalPos);
+ POINT nativeLocalPos = nativeGlobalPos;
+ ::ScreenToClient(hWnd, &nativeLocalPos);
+ QPoint qtScenePos =
+ QHighDpi::fromNativeLocalPosition(point2qpoint(nativeLocalPos), m_windowHandle);
+ WindowAgentBase::SystemButton sysButtonType = WindowAgentBase::Unknown;
+ if (isInSystemButtons(qtScenePos, &sysButtonType) &&
+ sysButtonType == WindowAgentBase::WindowIcon) {
+ ::PostMessageW(hWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
+ }
+ }
+
// QPA's internal code will handle system menu events separately, and its
// behavior is not what we would want to see because it doesn't know our
// window doesn't have any window frame now, so return early here to avoid
--
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