XTranslateCoordinates(3X11)

Name

XTranslateCoordinates − translate window coordinates

Syntax

Bool XTranslateCoordinates(display, src_w, dest_w, src_x, src_y, dest_x_return, dest_y_return, child_return)
      Display *display;
      Window src_w, dest_w;
      int src_x, src_y;
      int *dest_x_return, *dest_y_return;
      Window *child_return;

Arguments

child_returnReturns the child if the coordinates are contained in a mapped child of the destination window.

dest_wSpecifies the destination window.

dest_x_return

dest_y_return
Return the x and y coordinates within the destination window.

displaySpecifies the connection to the X server.

src_wSpecifies the source window.

src_x

src_ySpecify the x and y coordinates within the source window.

Description

The XTranslateCoordinates function takes the src_x and src_y coordinates relative to the source window’s origin and returns these coordinates to dest_x_return and dest_y_return relative to the destination window’s origin. If XTranslateCoordinates returns zero, src_w and dest_w are on different screens, and dest_x_return and dest_y_return are zero. If the coordinates are contained in a mapped child of dest_w, that child is returned to child_return. Otherwise, child_return is set to None.

XTranslateCoordinates can generate a BadWindow error.

Diagnostics

BadWindow
A value for a Window argument does not name a defined Window.