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The following task has a new comment added:
FS#699 - hiding toplevel windows is not supported
User who did this - Uli Schlachter (psychon)
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No idea what QT is smoking, but I want some.
I started a new X server without any window manager (Xephyr to be exact) and
ran this app under xtrace (had to install a shitload of python stuff for this
:( ).
QT creates 6 (!!!!) windows (I skipped everything except CreateWindow,
MapWindow, UnmapWindow and ConfigureWindow here):
000:<:0075: 40: Request(1): CreateWindow depth=0x00 window=0x00200001
parent=0x0000010b x=375 y=300 width=750 height=400 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:0076: 40: Request(1): CreateWindow depth=0x00 window=0x00200002
parent=0x0000010b x=0 y=0 width=1 height=1 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0x00000000 border-pixel=0x00000000}
000:<:007e: 20: Request(12): ConfigureWindow window=0x00200001
values={width=750 height=400}
000:<:0089: 16: Request(2): ChangeWindowAttributes window=0x00200001
value-list={bit-gravity=NorthWest(0x01)}
000:<:008a: 16: Request(2): ChangeWindowAttributes window=0x00200001
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:008d: 16: Request(2): ChangeWindowAttributes window=0x00200001
value-list={cursor=0x00200005}
000:<:008e: 16: Request(2): ChangeWindowAttributes window=0x00200001
value-list={background-pixel=0xff6a756e}
000:<:008f: 40: Request(1): CreateWindow depth=0x00 window=0x00200006
parent=0x00200001 x=0 y=0 width=100 height=30 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:0090: 16: Request(2): ChangeWindowAttributes window=0x00200006
value-list={bit-gravity=NorthWest(0x01)}
000:<:0091: 16: Request(2): ChangeWindowAttributes window=0x00200006
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:0092: 16: Request(2): ChangeWindowAttributes window=0x00200006
value-list={background-pixel=0xff6a756e}
000:<:0093: 40: Request(1): CreateWindow depth=0x00 window=0x00200007
parent=0x00200001 x=0 y=0 width=100 height=30 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:0094: 16: Request(2): ChangeWindowAttributes window=0x00200007
value-list={bit-gravity=NorthWest(0x01)}
000:<:0095: 16: Request(2): ChangeWindowAttributes window=0x00200007
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:0096: 16: Request(2): ChangeWindowAttributes window=0x00200007
value-list={background-pixel=0xff6a756e}
000:<:0097: 40: Request(1): CreateWindow depth=0x00 window=0x00200008
parent=0x00200001 x=0 y=0 width=100 height=30 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:0098: 16: Request(2): ChangeWindowAttributes window=0x00200008
value-list={bit-gravity=NorthWest(0x01)}
000:<:0099: 16: Request(2): ChangeWindowAttributes window=0x00200008
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:009a: 16: Request(2): ChangeWindowAttributes window=0x00200008
value-list={background-pixel=0xff6a756e}
000:<:009b: 40: Request(1): CreateWindow depth=0x00 window=0x00200009
parent=0x00200001 x=0 y=0 width=100 height=30 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:009c: 16: Request(2): ChangeWindowAttributes window=0x00200009
value-list={bit-gravity=NorthWest(0x01)}
000:<:009d: 16: Request(2): ChangeWindowAttributes window=0x00200009
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:009e: 16: Request(2): ChangeWindowAttributes window=0x00200009
value-list={background-pixel=0xff6a756e}
000:<:009f: 40: Request(1): CreateWindow depth=0x00 window=0x0020000a
parent=0x00200001 x=0 y=0 width=100 height=30 border-width=0
class=CopyFromParent(0x0000) visual=CopyFromParent(0x00000000)
value-list={background-pixel=0xff000000 border-pixel=0xff000000}
000:<:00a0: 16: Request(2): ChangeWindowAttributes window=0x0020000a
value-list={bit-gravity=NorthWest(0x01)}
000:<:00a1: 16: Request(2): ChangeWindowAttributes window=0x0020000a
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00a2: 16: Request(2): ChangeWindowAttributes window=0x0020000a
value-list={background-pixel=0xff6a756e}
000:<:00a3: 8: Request(10): UnmapWindow window=0x0020000a
000:<:00a4: 20: Request(12): ConfigureWindow window=0x0020000a
values={width=100 height=11}
000:<:00a5: 16: Request(2): ChangeWindowAttributes window=0x0020000a
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00a6: 16: Request(2): ChangeWindowAttributes window=0x0000010b
value-list={event-mask=EnterWindow,LeaveWindow,KeymapState,PropertyChange}
000:>:00a6: Event ConfigureNotify(22) event=0x0020000a window=0x0020000a
above-sibling=0x00200009 x=0 y=0 width=100 height=11 border-width=0
override-redirect=false(0x00)
000:<:00a7: 16: Request(2): ChangeWindowAttributes window=0x00200001
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00a8: 16: Request(2): ChangeWindowAttributes window=0x00200006
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00a9: 16: Request(2): ChangeWindowAttributes window=0x00200007
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00aa: 16: Request(2): ChangeWindowAttributes window=0x00200008
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00ab: 16: Request(2): ChangeWindowAttributes window=0x00200009
value-list={event-mask=KeyPress,KeyRelease,ButtonPress,ButtonRelease,EnterWindow,LeaveWindow,PointerMotion,ButtonMotion,KeymapState,Exposure,StructureNotify,FocusChange,PropertyChange}
000:<:00ac: 96: Request(18): ChangeProperty mode=Replace(0x00) window=0x00200001
property=0x28("WM_NORMAL_HINTS") type=0x29("WM_SIZE_HINTS")
data=0x0000020a,0x00000000,0x00000000,0x000000c8,0x00000096,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000001;
000:<:00ad: 20: Request(12): ConfigureWindow window=0x00200001
values={width=200 height=150}
000:<:00ae: 28: Request(12): ConfigureWindow window=0x00200006 values={x=0 y=0
width=200 height=1}
000:<:00af: 28: Request(12): ConfigureWindow window=0x00200008 values={x=0 y=1
width=1 height=148}
000:<:00b0: 28: Request(12): ConfigureWindow window=0x00200009 values={x=200
y=1 width=1 height=148}
000:<:00b1: 28: Request(12): ConfigureWindow window=0x00200007 values={x=0
y=149 width=200 height=1}
000:<:00b3: 8: Request(8): MapWindow window=0x00200006
000:<:00b4: 8: Request(8): MapWindow window=0x00200007
000:<:00b5: 8: Request(8): MapWindow window=0x00200008
000:<:00b6: 8: Request(8): MapWindow window=0x00200009
000:<:00b9: 8: Request(8): MapWindow window=0x00200001
000:<:00ba: 8: Request(10): UnmapWindow window=0x00200001
(One window made invisible which never was visible in the first place, then 5
other windows made visible and one hidden again)
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More information can be found at the following URL:
http://awesome.naquadah.org/bugs/index.php?do=details&task_id=699#comment1610
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