XCopyArea 3X11 __xorgversion__ XLIB FUNCTIONS XCopyArea XCopyPlane copy areas int XCopyArea ( Display *display , Drawable src , Drawable dest , GC gc , int src_x , int src_y , unsigned int width , unsigned height , int dest_x , int dest_y ); int XCopyPlane ( Display *display , Drawable src , Drawable dest , GC gc , int src_x , int src_y , unsigned width , int height , int dest_x , int dest_y , unsigned long plane ); and specify its upper-left corner dest_x dest_y Specify the x and y coordinates, which are relative to the origin of the destination rectangle. display Specifies the connection to the X server. gc Specifies the GC. plane Specifies the bit plane. You must set exactly one bit to 1. src dest Specify the source and destination rectangles to be combined. src_x src_y Specify the x and y coordinates, which are relative to the origin of the source rectangle and specify its upper-left corner. and destination rectangles width height Specify the width and height, which are the dimensions of both the source. The  XCopyArea  function combines the specified rectangle of src with the specified rectangle of dest. The drawables must have the same root and depth, or a  BadMatch  error results. If regions of the source rectangle are obscured and have not been retained in backing store or if regions outside the boundaries of the source drawable are specified, those regions are not copied. Instead, the following occurs on all corresponding destination regions that are either visible or are retained in backing store. If the destination is a window with a background other than  None , corresponding regions of the destination are tiled with that background (with plane-mask of all ones and  GXcopy  function). Regardless of tiling or whether the destination is a window or a pixmap, if graphics-exposures is  True , then  GraphicsExpose  events for all corresponding destination regions are generated. If graphics-exposures is  True  but no  GraphicsExpose  events are generated, a  NoExpose  event is generated. Note that by default graphics-exposures is  True  in new GCs. This function uses these GC components: function, plane-mask, subwindow-mode, graphics-exposures, clip-x-origin, clip-y-origin, and clip-mask.  XCopyArea  can generate  BadDrawable ,  BadGC , and  BadMatch  errors. The  XCopyPlane  function uses a single bit plane of the specified source rectangle combined with the specified GC to modify the specified rectangle of dest. The drawables must have the same root but need not have the same depth. If the drawables do not have the same root, a  BadMatch  error results. If plane does not have exactly one bit set to 1 and the value of plane is not less than %2 sup n%, where n is the depth of src, a  BadValue  error results. Effectively,  XCopyPlane  forms a pixmap of the same depth as the rectangle of dest and with a size specified by the source region. It uses the foreground/background pixels in the GC (foreground everywhere the bit plane in src contains a bit set to 1, background everywhere the bit plane in src contains a bit set to 0) and the equivalent of a  CopyArea  protocol request is performed with all the same exposure semantics. This can also be thought of as using the specified region of the source bit plane as a stipple with a fill-style of  FillOpaqueStippled  for filling a rectangular area of the destination. This function uses these GC components: function, plane-mask, foreground, background, subwindow-mode, graphics-exposures, clip-x-origin, clip-y-origin, and clip-mask.  XCopyPlane  can generate  BadDrawable ,  BadGC ,  BadMatch , and  BadValue  errors.  BadDrawable  A value for a Drawable argument does not name a defined Window or Pixmap.  BadGC  A value for a GContext argument does not name a defined GContext.  BadMatch  An  InputOnly  window is used as a Drawable.  BadMatch  Some argument or pair of arguments has the correct type and range but fails to match in some other way required by the request.  BadValue  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 defined by the argument's type is accepted. Any argument defined as a set of alternatives can generate this error. XClearArea(3X11) Xlib - C Language X Interface