/* * File: xmanager.h * Version: 3.0 * Last modified on Sat Oct  1 12:25:07 1994 by eroberts * ----------------------------------------------------- * This file is the interface to the xmanager module, which is the * portion of the graphics implementation responsible for all of the * interaction with X. */#ifndef _xmanager_h#define _xmanager_h#include "genlib.h"/* * Constants * --------- * CommandBufferSize  -- Size of internal command buffer * MaxFontName        -- Maximum length of font name * MaxTextString      -- Length limit for DrawTextString */#define CommandBufferSize   200#define MaxFontName          25#define MaxTextString       120/* * Type: commandT * -------------- * The client side of the graphics implementation and the X side of * the implementation communicate by means of commands sent across a * communication pipe.  This enumeration type defines the command * codes. */typedef enum {   LineCmd,   ArcCmd,   TextCmd,   WidthCmd,   FontMetricsCmd,   SetEraseCmd,   StartRegionCmd,   EndRegionCmd,   ClearCmd,   UpdateCmd,   SetFontCmd,   SetTitleCmd,   GetWidthCmd,   GetHeightCmd,   GetMouseCmd,   WaitForMouseCmd,   SetColorCmd,   ExitGraphicsCmd} commandT;/* * Function: XMInitialize * Usage: XMInitialize(title); * --------------------------- * This function starts the X manager process.  The title argument is * a string to use as the title bar for the new window. */void XMInitialize(string title);/* * Function: XMSendCommand * Usage: XMSendCommand(cmd, args); * -------------------------------- * This function sends the specified command to the X manager * process along with an argument string. */void XMSendCommand(commandT cmd, string args);/* * Function: XMGetResponse * Usage: XMGetResponse(buffer); * ----------------------------- * This function reads a line from the X manager in response to * a command message.  The string is stored in the buffer provided * by the client, which must be at least CommandBufferSize bytes. */void XMGetResponse(char buffer[]);/* * Function: XMReleaseClient * Usage: XMReleaseClient(); * ------------------------- * This function is used by the X display code to release a * client waiting on an event. */void XMReleaseClient(void);#endif