import idc
import idaapi
import sys

def main():
    # 1. Get the effective address (EA) of the current cursor position.
    ea = idaapi.get_screen_ea()

    if ea == idaapi.BADADDR:
        print("[-] Error: Could not get current effective address.")
        return

    # 2. Read the value at the effective address.
    # We will try to read a 4-byte (DWORD) value as a common default.
    # You might need to adjust the size (e.g., idc.get_qword for 8 bytes, idc.get_byte for 1 byte)
    # depending on what you are highlighting.
    try:
        # Use get_wide_dword to read 4 bytes (DWORD).
        # Note: If you highlight an immediate value, you might need more complex logic
        # (like analyzing the instruction's operand) to get the value directly.
        # This approach assumes you are highlighting the address of the variable's value in memory.
        value = idc.get_wide_dword(ea)
    except Exception as e:
        print(f"[-] Error reading memory at 0x{ea:X}: {e}")
        return

    # 3. Format the value as a hexadecimal string.
    # The 'X' format specifier produces a hexadecimal string (e.g., 'DEADBEEF').
    # The '0' fills with leading zeros up to the required width (8 for DWORD).
    hex_string = f"{value:08X}"

    # 4. Print the output in the format you requested:
    # "Passing value as hex string: DEADBEEF"
    print(f"[+] Effective Address: 0x{ea:X}")
    print(f"[+] Extracted Value (4-bytes): 0x{value:X}")
    print(f"[+] Passing value as hex string: {hex_string}")

if __name__ == "__main__":
    # Ensure the environment is set up for IDAPython execution
    print("--- Running Script to Get Highlighted Value ---")
    main()
    print("--- Script Finished ---")