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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
//============================================================
//
// win32_output.h - Win32 implementation of MAME output routines
//
//============================================================
#ifndef MAME_OSD_OUTPUT_WIN32_OUTPUT_H
#define MAME_OSD_OUTPUT_WIN32_OUTPUT_H
#pragma once
//============================================================
// CONSTANTS
//============================================================
// window parameters
#define OUTPUT_WINDOW_CLASS TEXT("MAMEOutput")
#define OUTPUT_WINDOW_NAME TEXT("MAMEOutput")
//
// These messages are sent by MAME:
//
// OM_MAME_START: broadcast when MAME initializes
// WPARAM = HWND of MAME's output window
// LPARAM = unused
#define OM_MAME_START TEXT("MAMEOutputStart")
// OM_MAME_STOP: broadcast when MAME shuts down
// WPARAM = HWND of MAME's output window
// LPARAM = unused
#define OM_MAME_STOP TEXT("MAMEOutputStop")
// OM_MAME_UPDATE_STATE: sent to registered clients when the state
// of an output changes
// WPARAM = ID of the output
// LPARAM = new value for the output
#define OM_MAME_UPDATE_STATE TEXT("MAMEOutputUpdateState")
//
// These messages are sent by external clients to MAME:
//
// OM_MAME_REGISTER_CLIENT: sent to MAME to register a client
// WPARAM = HWND of client's listener window
// LPARAM = client-specified ID (must be unique)
#define OM_MAME_REGISTER_CLIENT TEXT("MAMEOutputRegister")
// OM_MAME_UNREGISTER_CLIENT: sent to MAME to unregister a client
// WPARAM = HWND of client's listener window
// LPARAM = client-specified ID (must match registration)
#define OM_MAME_UNREGISTER_CLIENT TEXT("MAMEOutputUnregister")
// OM_MAME_GET_ID_STRING: requests the string associated with a
// given ID. ID=0 is always the name of the game. Other IDs are
// only discoverable from a OM_MAME_UPDATE_STATE message. The
// result will be sent back as a WM_COPYDATA message with MAME's
// output window as the sender, dwData = the ID of the string,
// and lpData pointing to a NULL-terminated string.
// WPARAM = HWND of client's listener window
// LPARAM = ID you wish to know about
#define OM_MAME_GET_ID_STRING TEXT("MAMEOutputGetIDString")
// IM_MAME_MESSAGE: send message to MAME
// WPARAM = ID of the message
// LPARAM = value
#define IM_MAME_MESSAGE TEXT("MAMEInputMessage")
//
// These constants are used to identify WM_COPYDATA messages
// coming from MAME:
//
#define COPYDATA_MESSAGE_ID_STRING 1
//============================================================
// TYPE DEFINITIONS
//============================================================
struct copydata_id_string
{
uint32_t id; // ID that was requested
char string[1]; // string array containing the data
};
#endif // MAME_OSD_OUTPUT_WIN32_OUTPUT_H
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