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<HTML><HEAD><TITLE>Xlib Programming Manual: XCreateWindow, XCreateSimpleWindow</TITLE></HEAD><BODY><H1 ALIGN=center>XCreateWindow, XCreateSimpleWindow</H1><H2>SYNTAX</H2><PRE><CODE><A HREF="./">Window</A> XCreateWindow(<B>display</B>, <B>parent</B>, <B>x</B>, <B>y</B>, <B>width</B>, <B>height</B>, <B>border_width</B>, <B>depth</B>, <B>class</B>, <B>visual</B>, <B>valuemask</B>, <B>attributes</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="./">Window</A> <B>parent</B>; int <B>x</B>, <B>y</B>; unsigned int <B>width</B>, <B>height</B>; unsigned int <B>border_width</B>; int <B>depth</B>; unsigned int <B>class</B>; <A HREF="visual-types.html#Visual">Visual</A> *<B>visual</B> unsigned long <B>valuemask</B>; <A HREF="attributes/#XSetWindowAttributes">XSetWindowAttributes</A> *<B>attributes</B>;Window XCreateSimpleWindow(<B>display</B>, <B>parent</B>, <B>x</B>, <B>y</B>, <B>width</B>, <B>height</B>, <B>border_width</B>, <B>border</B>, <B>background</B>) <A HREF="../display/opening.html#Display">Display</A> *<B>display</B>; <A HREF="./">Window</A> <B>parent</B>; int <B>x</B>, <B>y</B>; unsigned int <B>width</B>, <B>height</B>; unsigned int <B>border_width</B>; unsigned long <B>border</B>; unsigned long <B>background</B>;</CODE></PRE><H2>ARGUMENTS</H2><TABLE><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.<TR><TD> <B>background</B><TD> Specifies the background pixel value of the window.<TR><TD> <B>border</B><TD> Specifies the border pixel value of the window.<TR><TD> <B>border_width</B><TD> Specifies the width of the created window's border in pixels.<TR><TD> <B>class</B><TD> Specifies the created window's class.You can pass<B><A HREF="create.html#InputClass">InputOutput</A></B>, <B><A HREF="create.html#InputClass">InputOnly</A></B>, or <B>CopyFromParent</B>.A class of <B>CopyFromParent</B>means the classis taken from the parent.<TR><TD> <B>depth</B><TD> Specifies the window's depth.A depth of <B>CopyFromParent</B>means the depth is taken from the parent.<TR><TD> <B>display</B><TD> Specifies the connection to the X server.<TR><TD> <B>parent</B><TD> Specifies the parent 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.<TR><TD> <B>visual</B><TD> Specifies the visual type.A visual of <B>CopyFromParent</B>means the visual type is taken from the parent.<TR><TD><B>width</B><BR> <B>height</B><TD> Specify the width and height, which are the created window's inside dimensionsand do not include the created window's borders<TR><TD> <B>x</B> <BR><B>y</B><TD> Specify the x and y coordinates, which are the top-left outside corner of the window'sborders and are relative to the inside of the parent window's borders.</TABLE><H2>DESCRIPTION</H2>The<B>XCreateWindow</B>function creates an unmapped subwindow for a specified parent window, returns the window ID of the created window, and causes the X server to generate a<B><A HREF="../events/window-state-change/create.html">CreateNotify</A></B>event.The created window is placed on top in the stacking order with respect to siblings.<P>The coordinate system has the X axis horizontal and the Y axis verticalwith the origin [0, 0] at the upper-left corner.Coordinates are integral,in terms of pixels,and coincide with pixel centers.Each window and pixmap has its own coordinate system.For a window, the origin is inside the border at the inside, upper-left corner.<P>The border_width for an<B><A HREF="create.html#InputClass">InputOnly</A></B>window must be zero, or a<B>BadMatch</B>error results.For class<B><A HREF="create.html#InputClass">InputOutput</A></B>,the visual type and depth must be a combination supported for the screen,or a<B>BadMatch</B>error results.The depth need not be the same as the parent,but the parent must not be a window of class <B><A HREF="create.html#InputClass">InputOnly</A></B>,or a<B>BadMatch</B>error results.For an<B><A HREF="create.html#InputClass">InputOnly</A></B>window,the depth must be zero, and the visual must be one supported by the screen.If either condition is not met,a<B>BadMatch</B>error results.The parent window, however, may have any depth and class.If you specify any invalid window attribute for a window, a<B>BadMatch</B>error results.<P>The created window is not yet displayed (mapped) on the user's display.To display the window, call<B><A HREF="XMapWindow.html">XMapWindow()</A></B>.The new window initially uses the same cursor asits parent. A new cursor can be defined for the new window by calling<B><A HREF="XDefineCursor.html">XDefineCursor()</A></B>.The window will not be visible on the screen unless it and all of itsancestors are mapped and it is not obscured by any of its ancestors.<P><B>XCreateWindow</B>can generate<B>BadAlloc</B><B>BadColor</B>,<B>BadCursor</B>,<B>BadMatch</B>,<B>BadPixmap</B>,<B>BadValue</B>,and<B>BadWindow</B>errors.<P>The<B>XCreateSimpleWindow</B>function creates an unmapped<B><A HREF="create.html#InputClass">InputOutput</A></B>subwindow for a specified parent window, returns thewindow ID of the created window, and causes the X server to generate a<B><A HREF="../events/window-state-change/create.html">CreateNotify</A></B>event.The created window is placed on top in the stacking order with respect to siblings.Any part of the window that extends outside its parent window is clipped.The border_width for an<B><A HREF="create.html#InputClass">InputOnly</A></B>window must be zero, or a<B>BadMatch</B>error results.<B>XCreateSimpleWindow</B>inherits its depth, class, and visual from its parent.All other window attributes, except background and border, have their default values.<P><B>XCreateSimpleWindow</B>can generate<B>BadAlloc</B>,<B>BadMatch</B>,<B>BadValue</B>,and<B>BadWindow</B>errors.<H2>DIAGNOSTICS</H2><TABLE><TR><TD> <B>BadAlloc</B><TD>The server failed to allocate the requested resource or server memory.<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>The values do not exist for an<B><A HREF="create.html#InputClass">InputOnly</A></B>window.<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="XChangeWindowAttributes.html">XChangeWindowAttributes()</A></B>,<B><A HREF="XConfigureWindow.html">XConfigureWindow()</A></B>, <B><A HREF="XDefineCursor.html">XDefineCursor()</A></B>,<B><A HREF="XDestroyWindow.html">XDestroyWindow()</A></B>, <B><A HREF="XMapWindow.html">XMapWindow()</A></B>, <B><A HREF="XRaiseWindow.html">XRaiseWindow()</A></B>,<B><A HREF="XUnmapWindow.html">XUnmapWindow()</A></B><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
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