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DtWsmAddWorkspaceModifiedCallback(3)
CDE


NAME
  DtWsmAddWorkspaceModifiedCallback - add a callback to be called when any
  workspace is changed

SYNOPSIS
  #include <Dt/Wsm.h>
  DtWsmCBContext DtWsmAddWorkspaceModifiedCallback(Widget widget,
				    DtWsmWsModifiedProc ws_change,
				    Pointer client_data);

DESCRIPTION
  The DtWsmAddWorkspaceModifiedCallback function works with the workspace
  manager CDE workspace manager, dtwm1, and registers a function to be called
  when a workspace is added, deleted or modified.

  The widget argument is a realized widget.

  The ws_change argument is the procedure to be called when a workspace is
  modified.

  The client_data argument points to arbitrary client data to be passed back
  to ws_change.

  The header defines the DtWsmWsModifiedProc callback prototype as follows:

       typedef void (*DtWsmWsModifiedProc)(Widget widget,
					   Atom aWorkspace,
					   DtWsmWsReason reason,
					   Pointer client_data);

  The widget argument is the ID of the widget to be registered with the
  callback.

  The aWorkspace argument is the name of the new current workspace (converted
  to an X atom).

  The reason argument is a type of modification:
  A new workspace was added.
  The backdrop for the workspace changed.
  A different workspace was made the current workspace.
  A workspace was deleted.
  The workspace title changed.

  The client_data argument points to the client data to be registered with
  the callback.




RETURN VALUE
  Upon successful completion, the DtWsmAddWorkspaceModifiedCallback function
  returns a workspace callback registration context.


APPLICATION USAGE
  The DtWsmAddWorkspaceModifiedCallback function returns a registration
  context that the application must save in order to remove this callback
  later.

  DtWsmAddWorkspaceModifiedCallback requires a window; thus, a gadget is not
  acceptable for the widget argument.

  The DtWsmRemoveWorkspaceCallback3 function needs a registration context to
  remove the callback.

SEE ALSO
  Dt/Wsm.h5, dtwm1, DtWsmGetWorkspaceInfo3, DtWsmGetWorkspaceList3,
  DtWsmRemoveWorkspaceCallback3.