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Bug
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Resolution: Unresolved
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P2: Important
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None
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6.7
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None
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Linux/X11
In Qt 6.7 the Display typedef from qguiapplication_platform.h breaks user code compilation if the user code has a Display class defined:
src/display.h:9:7: error: using typedef-name ‘Display’ after ‘class’
9 | class Display
|^~~~~~~
In file included from /usr/include/qt6/QtGui/qguiapplication.h:188,
from /usr/include/qt6/QtGui/qscreen_platform.h:19,
from /usr/include/qt6/QtGui/qscreen.h:150,
from /usr/include/qt6/QtGui/qinputdevice.h:9,
from /usr/include/qt6/QtGui/qpointingdevice.h:9,
from /usr/include/qt6/QtGui/qeventpoint.h:9,
from /usr/include/qt6/QtGui/qevent.h:20,
from /usr/include/qt6/QtGui/QKeyEvent:1,
from src/gui.cpp:16:
/usr/include/qt6/QtGui/qguiapplication_platform.h:22:26: note: ‘Display’ has a previous declaration here
22|typedef struct _XDisplay Display;|
|^~~~~~~
src/videoplayer.h:66:17: error: field ‘_display’ has incomplete type ‘Display’ \{aka ‘_XDisplay’}
66|Display _display;|
|^~~~~~~~
/usr/include/qt6/QtGui/qguiapplication_platform.h:22:16: note: forward declaration of ‘Display’ \{aka ‘struct _XDisplay’}
22|typedef struct _XDisplay Display;