489 lines
10 KiB
Plaintext
489 lines
10 KiB
Plaintext
'\" t
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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'\" t
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.TH XAllocSizeHints 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XAllocSizeHints, XSetWMNormalHints, XGetWMNormalHints, XSetWMSizeHints, XGetWMSizeHints, XSizeHints \- allocate size hints structure and set or read a window's WM_NORMAL_HINTS property
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.SH SYNTAX
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XSizeHints *XAllocSizeHints\^(\|)
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.LP
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void XSetWMNormalHints\^(\^\fIdisplay\fP, \fIw\fP, \fIhints\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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XSizeHints *\fIhints\fP\^;
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.LP
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Status XGetWMNormalHints\^(\^\fIdisplay\fP, \fIw\fP, \fIhints_return\fP, \
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\fIsupplied_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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XSizeHints *\fIhints_return\fP\^;
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.br
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long *\fIsupplied_return\fP\^;
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.LP
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void XSetWMSizeHints\^(\^\fIdisplay\fP, \fIw\fP, \fIhints\fP, \fIproperty\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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XSizeHints *\fIhints\fP\^;
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.br
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Atom \fIproperty\fP\^;
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.LP
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Status XGetWMSizeHints\^(\^\fIdisplay\fP, \fIw\fP, \fIhints_return\fP, \
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\fIsupplied_return\fP, \fIproperty\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Window \fIw\fP\^;
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.br
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XSizeHints *\fIhints_return\fP\^;
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.br
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long *\fIsupplied_return\fP\^;
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.br
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Atom \fIproperty\fP\^;
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.SH ARGUMENTS
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIhints\fP 1i
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Specifies the size hints for the window in its normal state.
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.IP \fIhints\fP 1i
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Specifies the
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.ZN XSizeHints
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structure to be used.
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.IP \fIhints_return\fP 1i
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Returns the size hints for the window in its normal state.
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.\" $Header: property.a,v 1.2 88/04/05 15:19:43 mento Exp $
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.IP \fIproperty\fP 1i
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Specifies the property name.
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.IP \fIsupplied_return\fP 1i
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Returns the hints that were supplied by the user.
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.\" $Header: w.a,v 1.2 88/05/07 11:35:31 mento Exp $
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.IP \fIw\fP 1i
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Specifies the window.
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.SH DESCRIPTION
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The
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.ZN XAllocSizeHints
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function allocates and returns a pointer to a
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.ZN XSizeHints
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structure.
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Note that all fields in the
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.ZN XSizeHints
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structure are initially set to zero.
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If insufficient memory is available,
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.ZN XAllocSizeHints
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returns NULL.
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To free the memory allocated to this structure,
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use
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.ZN XFree .
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.LP
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The
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.ZN XSetWMNormalHints
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function replaces the size hints for the WM_NORMAL_HINTS property
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on the specified window.
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If the property does not already exist,
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.ZN XSetWMNormalHints
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sets the size hints for the WM_NORMAL_HINTS property on the specified window.
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The property is stored with a type of WM_SIZE_HINTS and a format of 32.
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.LP
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.ZN XSetWMNormalHints
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can generate
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.ZN BadAlloc
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and
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.ZN BadWindow
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errors.
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.LP
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The
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.ZN XGetWMNormalHints
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function returns the size hints stored in the WM_NORMAL_HINTS property
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on the specified window.
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If the property is of type WM_SIZE_HINTS, is of format 32,
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and is long enough to contain either an old (pre-ICCCM)
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or new size hints structure,
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.ZN XGetWMNormalHints
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sets the various fields of the
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.ZN XSizeHints
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structure, sets the supplied_return argument to the list of fields
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that were supplied by the user (whether or not they contained defined values),
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and returns a nonzero status.
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Otherwise, it returns a zero status.
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.LP
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If
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.ZN XGetWMNormalHints
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returns successfully and a pre-ICCCM size hints property is read,
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the supplied_return argument will contain the following bits:
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.LP
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.Ds
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(USPosition|USSize|PPosition|PSize|PMinSize|
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PMaxSize|PResizeInc|PAspect)
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.De
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.LP
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If the property is large enough to contain the base size
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and window gravity fields as well,
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the supplied_return argument will also contain the following bits:
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.LP
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.Ds
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PBaseSize|PWinGravity
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.De
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.LP
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.ZN XGetWMNormalHints
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can generate a
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PN BadWindow
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error.
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.LP
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The
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.ZN XSetWMSizeHints
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function replaces the size hints for the specified property
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on the named window.
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If the specified property does not already exist,
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.ZN XSetWMSizeHints
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sets the size hints for the specified property
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on the named window.
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The property is stored with a type of WM_SIZE_HINTS and a format of 32.
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To set a window's normal size hints,
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you can use the
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.ZN XSetWMNormalHints
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function.
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.LP
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.ZN XSetWMSizeHints
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can generate
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.ZN BadAlloc ,
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.ZN BadAtom ,
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and
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.ZN BadWindow
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errors.
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.LP
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The
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.ZN XGetWMSizeHints
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function returns the size hints stored in the specified property
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on the named window.
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If the property is of type WM_SIZE_HINTS, is of format 32,
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and is long enough to contain either an old (pre-ICCCM)
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or new size hints structure,
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.ZN XGetWMSizeHints
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sets the various fields of the
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.ZN XSizeHints
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structure, sets the supplied_return argument to the
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list of fields that were supplied by the user
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(whether or not they contained defined values),
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and returns a nonzero status.
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Otherwise, it returns a zero status.
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To get a window's normal size hints,
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you can use the
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.ZN XGetWMNormalHints
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function.
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.LP
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If
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.ZN XGetWMSizeHints
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returns successfully and a pre-ICCCM size hints property is read,
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the supplied_return argument will contain the following bits:
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.LP
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.Ds
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(USPosition|USSize|PPosition|PSize|PMinSize|
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PMaxSize|PResizeInc|PAspect)
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.De
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.LP
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If the property is large enough to contain the base size
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and window gravity fields as well,
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the supplied_return argument will also contain the following bits:
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.LP
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.Ds
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PBaseSize|PWinGravity
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.De
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.LP
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.ZN XGetWMSizeHints
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can generate
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.ZN BadAtom
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and
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.ZN BadWindow
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errors.
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.SH PROPERTIES
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.TP 1i
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\s-1WM_NORMAL_HINTS\s+1
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Size hints for a window in its normal state.
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The C type of this property is
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.ZN XSizeHints .
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.SH STRUCTURES
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The
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.ZN XSizeHints
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structure contains:
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.LP
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/* Size hints mask bits */
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.TS
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lw(.7i) lw(1.1i) lw(.9i) lw(3.1i).
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T{
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#define
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T} T{
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.ZN USPosition
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T} T{
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(1L << 0)
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T} T{
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/* user specified x, y */
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T}
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T{
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#define
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T} T{
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.ZN USSize
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T} T{
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(1L << 1)
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T} T{
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/* user specified width, height */
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T}
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T{
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#define
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T} T{
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.ZN PPosition
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T} T{
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(1L << 2)
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T} T{
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/* program specified position */
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T}
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T{
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#define
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T} T{
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.ZN PSize
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T} T{
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(1L << 3)
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T} T{
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/* program specified size */
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T}
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T{
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#define
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T} T{
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.ZN PMinSize
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T} T{
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(1L << 4)
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T} T{
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/* program specified minimum size */
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T}
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T{
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#define
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T} T{
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.ZN PMaxSize
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T} T{
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(1L << 5)
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T} T{
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/* program specified maximum size */
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T}
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T{
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#define
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T} T{
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.ZN PResizeInc
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T} T{
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(1L << 6)
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T} T{
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/* program specified resize increments */
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T}
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T{
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#define
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T} T{
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.ZN PAspect
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T} T{
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(1L << 7)
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T} T{
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/* program specified min and max aspect ratios */
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T}
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T{
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#define
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T} T{
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.ZN PBaseSize
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T} T{
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(1L << 8)
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T}
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T{
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#define
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T} T{
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.ZN PWinGravity
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T} T{
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(1L << 9)
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T}
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T{
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#define
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T} T{
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.ZN PAllHints
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T} T{
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(PPosition|PSize|PMinSize|
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.br
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PMaxSize|PResizeInc|PAspect)
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T} T{
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T}
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.TE
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.IN "XSizeHints" "" "@DEF@"
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.Ds 0
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.TA .5i 2.5i
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.ta .5i 2.5i
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/* Values */
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typedef struct {
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long flags; /* marks which fields in this structure are defined */
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int x, y; /* Obsolete */
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int width, height; /* Obsolete */
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int min_width, min_height;
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int max_width, max_height;
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int width_inc, height_inc;
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struct {
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int x; /* numerator */
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int y; /* denominator */
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} min_aspect, max_aspect;
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int base_width, base_height;
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int win_gravity;
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} XSizeHints;
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.De
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.LP
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The x, y, width, and height members are now obsolete
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and are left solely for compatibility reasons.
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The min_width and min_height members specify the
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minimum window size that still allows the application to be useful.
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The max_width and max_height members specify the maximum window size.
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The width_inc and height_inc members define an arithmetic progression of
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sizes (minimum to maximum) into which the window prefers to be resized.
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The min_aspect and max_aspect members are expressed
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as ratios of x and y,
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and they allow an application to specify the range of aspect
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ratios it prefers.
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The base_width and base_height members define the desired size of the window.
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The window manager will interpret the position of the window
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and its border width to position the point of the outer rectangle
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of the overall window specified by the win_gravity member.
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The outer rectangle of the window includes any borders or decorations
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supplied by the window manager.
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In other words,
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if the window manager decides to place the window where the client asked,
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the position on the parent window's border named by the win_gravity
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will be placed where the client window would have been placed
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in the absence of a window manager.
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.LP
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Note that use of the
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.ZN PAllHints
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macro is highly discouraged.
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.SH DIAGNOSTICS
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.\" $Header: badalloc.e,v 1.3 87/09/11 11:17:14 mento Exp $
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.TP 1i
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.ZN BadAlloc
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The server failed to allocate the requested resource or server memory.
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.\" $Header: badatom.e,v 1.1 87/09/04 08:22:55 mento Exp $
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.TP 1i
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.ZN BadAtom
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A value for an Atom argument does not name a defined Atom.
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.\" $Header: badwindow.e,v 1.1 87/09/04 08:23:20 mento Exp $
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.TP 1i
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.ZN BadWindow
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A value for a Window argument does not name a defined Window.
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.SH "SEE ALSO"
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XAllocClassHint(3X11),
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XAllocIconSize(3X11),
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XAllocWMHints(3X11),
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XFree(3X11),
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XSetCommand(3X11),
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XSetTransientForHint(3X11),
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XSetTextProperty(3X11),
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XSetWMClientMachine(3X11),
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XSetWMColormapWindows(3X11),
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XSetWMIconName(3X11),
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XSetWMName(3X11),
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XSetWMProperties(3X11),
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XSetWMProtocols(3X11),
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XStringListToTextProperty(3X11)
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.br
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\fI\*(xL\fP
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