#ifndef TDKPIN_OBJECT_WINDOWS_H
#define TDKPIN_OBJECT_WINDOWS_H

#include "tdkpin_segmented.h"

#pragma pack(push, 1)
typedef struct {
    HWND16 window;
    UINT16 message;
    WPARAM16 wparam;
    LPARAM16 lparam;
    LRESULT16 result;
} ObjectWindowsMessage;
#pragma pack(pop)

_Static_assert(
    sizeof(ObjectWindowsMessage) == 14,
    "ObjectWindows message record layout drift");

#pragma pack(push, 1)
typedef struct {
    uint16_t parent_table;
    uint16_t cached_message;
    uint16_t cached_handler_slot;
    uint16_t count;
    uint16_t message_ids[9];
    Win16FarPtr handlers[9];
} ObjectWindowsMessageTable9;
#pragma pack(pop)

_Static_assert(
    sizeof(ObjectWindowsMessageTable9) == 62,
    "ObjectWindows dynamic message table layout drift");
extern ObjectWindowsMessageTable9 g_object_windows_base_message_table;
/* Binary overlay: 1028:05cc..0609; cache words are mutable. */

void object_windows_bind_window(HWND16 window, Win16FarPtr object);
void object_windows_unbind_window(HWND16 window);
Win16FarPtr object_windows_object_from_window(HWND16 window);
LRESULT16 object_window_bootstrap_proc(
    HWND16 window, UINT16 message, WPARAM16 wparam, LPARAM16 lparam);
Win16FarPtr object_windows_allocate_bound_thunk(
    Win16FarPtr object); /* 1018:01dc */
void object_windows_release_bound_thunk(
    Win16FarPtr thunk); /* 1018:02fa */

extern uint16_t g_object_windows_thunk_code_selector; /* 1028:066c */
extern Win16FarPtr g_object_windows_free_thunk;       /* 1028:066e/0670 */
extern Win16FarPtr g_object_windows_dispatch_proc;    /* 1028:0672/0674 */
extern Win16FarPtr g_object_windows_message_hook;     /* 1028:0682/0684 */
extern Win16FarPtr g_object_windows_creating_object;  /* 1028:0676/0678 */

Win16FarPtr object_windows_resolve_message_handler(
    uint16_t vmt,
    uint16_t message,
    uint16_t fallback_slot); /* 1018:0002 */
void object_windows_call_message_hook(
    Win16FarPtr object,
    Win16FarPtr handler,
    const ObjectWindowsMessage *message); /* 1018:0103 */
LRESULT16 object_dispatch_window_or_dialog_proc(
    Win16FarPtr object,
    HWND16 window,
    UINT16 message,
    WPARAM16 wparam,
    LPARAM16 lparam); /* 1018:0133 */
void object_windows_dispatch_event(
    uint16_t fallback_slot,
    uint16_t method_id,
    Win16FarPtr event,
    Win16FarPtr object); /* 1018:08c3 */

/* Platform bridge for the original indirect far calls. */
void win16_call_object_message_handler(
    Win16FarPtr procedure,
    Win16FarPtr object,
    ObjectWindowsMessage *message);
void win16_call_object_message_hook(
    Win16FarPtr procedure,
    Win16FarPtr object,
    Win16FarPtr handler,
    HWND16 window,
    UINT16 message,
    WPARAM16 wparam,
    LPARAM16 lparam);
void win16_call_object_event_handler(
    Win16FarPtr procedure,
    Win16FarPtr object,
    Win16FarPtr event);
void win16_call_object_scroll_method(
    Win16FarPtr procedure,
    Win16FarPtr object,
    uint16_t position,
    uint16_t command);
void win16_call_object_paint_method(
    Win16FarPtr procedure,
    Win16FarPtr object,
    PAINTSTRUCT16 *paint,
    HDC16 dc);

#endif