xchangewindowattributes.html
来自「linux图形界面x liberary手册」· HTML 代码 · 共 188 行
HTML
188 行
<HTML><HEAD><TITLE>Xlib Programming Manual: XChangeWindowAttributes</TITLE></HEAD><BODY><H1 ALIGN=center>XChangeWindowAttributes</H1><H2>Syntax</H2><!.IN "XChangeWindowAttributes" "" "@DEF@"><CODE><PRE>XChangeWindowAttributes(<B>display</B>, <B>w</B>, <B>valuemask</B>, <B>attributes</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="">Window</A> <B>w</B>; unsigned long <B>valuemask</B>; <A HREF="attributes/#XSetWindowAttributes.html">XSetWindowAttributes</A> *<B>attributes</B>;</PRE></CODE><H2>Arguments</H2><TABLE><TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>w</B><TD> Specifies the window.<TR><TD> <B>valuemask</B><TD> Specifies which window attributes are defined in the attributesargument.This mask is the bitwise inclusive OR of the valid attribute mask bits.If valuemask is zero,the attributes are ignored and are not referenced.The values and restrictions arethe same as for<B><A HREF="XCreateWindow.html">XCreateWindow()</A></B>.<TR><TD> <B>attributes</B><TD> Specifies the structure from which the values (as specified by the value mask)are to be taken.The value mask should have the appropriate bitsset to indicate which attributes have been set in the structure (see "<A HREF="attributes/">Window Attributes</A>").</TABLE><H2>Description</H2>Depending on the valuemask,the<B>XChangeWindowAttributes()</B>function uses the window attributes in the<A HREF="attributes/#XSetWindowAttributes.html">XSetWindowAttributes</A>structure to change the specified window attributes.Changing the background does not cause the window contents to bechanged.To repaint the window and its background, use <B><A HREF="../graphics/XClearWindow.html">XClearWindow()</A></B>.Setting the border or changing the background such that theborder tile origin changes causes the border to be repainted.Changing the background of a root window to <B>None</B>or <B>ParentRelative</B>restores the default background pixmap.Changing the border of a root window to<B>CopyFromParent</B>restores the default border pixmap.Changing the <A HREF="attributes/gravity.html">win-gravity</A> does not affect the current position of thewindow.Changing the <A HREF="attributes/backing-store.html">backing-store</A> of an obscured window to <B>WhenMapped</B>or<B>Always</B>, or changing the <A HREF="attributes/backing.html">backing-planes</A>, <A HREF="attributes/backing.html">backing-pixel</A>, or<A HREF="attributes/save-under.html">save-under</A> of a mapped window may have no immediate effect.Changing the colormap of a window (that is, defining a new map, notchanging the contents of the existing map) generates a <B><A HREF="../events/colormap-state.html">ColormapNotify</A></B>event.Changing the colormap of a visible window may have noimmediate effect on the screen because the map may not be installed(see<B><A HREF="../window-and-session-manager/XInstallColormap.html">XInstallColormap()</A></B>).Changing the cursor of a root window to <B>None</B>restores the defaultcursor.Whenever possible, you are encouraged to share colormaps.<P>Multiple clients can select input on the same window. Their event masks are maintained separately.When an event is generated, it is reported to all interested clients. However, only one client at a time can select for <B><A HREF="../events/processing-overview.html#SubstructureRedirectMask">SubstructureRedirectMask</A></B><B><A HREF="../events/processing-overview.html#ResizeRedirectMask">ResizeRedirectMask</A></B>and<B><A HREF="../events/processing-overview.html#ButtonPressMask">ButtonPressMask</A></B>If a client attempts to select any of these event masks and some other client has already selected one, a<B>BadAccess</B>error results.There is only one do-not-propagate-mask for a window, not one per client.<P><B>XChangeWindowAttributes()</B>can generate<B>BadAccess</B>,<B>BadColor</B>,<B>BadCursor</B>,<B>BadMatch</B>,<B>BadPixmap</B>,<B>BadValue</B>,and<B>BadWindow</B>errors.<H2>Diagnostics</H2><TABLE><TR><TD><B>BadAccess</B><TD> A client attempted to free a color map entry thatit did not already allocate.<TR><TD><B>BadAccess</B><TD> A client attempted to store into a read-only colormap entry.<TR><TD><B>BadColor</B><TD> A value for a Colormap argument does not name a defined Colormap.<TR><TD><B>BadCursor</B> <TD>A value for a Cursor argument does not name a defined Cursor.<TR><TD><B>BadMatch</B><TD>An<B><A HREF="create.html#InputClass">InputOnly</A></B>window is used as a Drawable.<TR><TD><B>BadMatch</B><TD>Some argument or pair of arguments has the correct type and range but failsto match in some other way required by the request.<TR><TD><B>BadPixmap</B><TD> A value for a Pixmap argument does not name a defined Pixmap.<TR><TD><B>BadValue</B><TD>Some numeric value falls outside the range of values accepted by the request.Unless a specific range is specified for an argument, the full range definedby the argument's type is accepted. Any argument defined as a set ofalternatives can generate this error.<TR><TD><B>BadWindow</B><TD>A value for a Window argument does not name a defined Window.</TABLE><H2>See also</H2><B><A HREF="XConfigureWindow.html">XConfigureWindow()</A></B>,<B><A HREF="XCreateWindow.html">XCreateWindow()</A></B>,<B><A HREF="XDestroyWindow.html">XDestroyWindow()</A></B>,<B><A HREF="../window-and-session-manager/XInstallColormap.html">XInstallColormap()</A></B>,<B><A HREF="XMapWindow.html">XMapWindow()</A></B>,<B><A HREF="XRaiseWindow.html">XRaiseWindow()</A></B>,<B><A HREF="XSetWindowBackground.html">XSetWindowBackground()</A></B>,<B><A HREF="XSetWindowBackgroundPixmap.html">XSetWindowBackgroundPixmap()</A></B>,<B><A HREF="XSetWindowBorder.html">XSetWindowBorder()</A></B>,<B><A HREF="XSetWindowBorderPixmap.html">XSetWindowBorderPixmap()</A></B>,<B><A HREF="XSetWindowColormap.html">XSetWindowColormap()</A></B>,<B><A HREF="XUnmapWindow.html">XUnmapWindow()</A></B>,"<A HREF="change-attributes.html">Changing Window Attributes</A>"<HR><ADDRESS><A HREF="http://tronche.com/">Christophe Tronche</A>, <A HREF="mailto:ch.tronche@computer.org">ch.tronche@computer.org</A></ADDRESS></BODY></HTML>⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?