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Fix showing autohidden taskbar with maximized window

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This commit is contained in:
Ilya Fedin 2020-09-30 01:37:52 +04:00 • committed by John Preston
parent 371510cfe2
commit 7fa5ca192b
1 changed files with 38 additions and 0 deletions
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38
Telegram/SourceFiles/platform/win/windows_event_filter.cpp
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@ -35,6 +35,35 @@ bool IsCompositionEnabled() {
return success && result;
}
bool IsTaskbarAutoHidden(PUINT pEdge = nullptr) {
HWND hTaskbar = FindWindowW(L"Shell_TrayWnd", nullptr);
if (!hTaskbar) {
if (pEdge) {
*pEdge = (UINT)-1;
}
return false;
}
APPBARDATA state = {sizeof(state), hTaskbar};
APPBARDATA pos = {sizeof(pos), hTaskbar};
LRESULT lState = SHAppBarMessage(ABM_GETSTATE, &state);
bool bAutoHidden = (lState & ABS_AUTOHIDE);
if (SHAppBarMessage(ABM_GETTASKBARPOS, &pos)) {
if (pEdge) {
*pEdge = pos.uEdge;
}
} else {
Unexpected("Failed to get taskbar pos");
if (pEdge) {
*pEdge = ABE_BOTTOM;
}
}
return bAutoHidden;
}
} // namespace
EventFilter *EventFilter::CreateInstance(not_null<MainWindow*> window) {
@ -104,6 +133,15 @@ bool EventFilter::customWindowFrameEvent(
mi.cbSize = sizeof(mi);
if (GetMonitorInfo(hMonitor, &mi)) {
*r = mi.rcWork;
UINT uEdge = (UINT)-1;
if (IsTaskbarAutoHidden(&uEdge)) {
switch (uEdge) {
case ABE_LEFT: r->left += 1; break;
case ABE_RIGHT: r->right -= 1; break;
case ABE_TOP: r->top += 1; break;
case ABE_BOTTOM: r->bottom -= 1; break;
}
}
}
}
}