57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
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"""Run a whole HDevelop program (.hdev) via HDevEngine and read control vars back.
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Use when the logic lives in a program's main rather than a parameterized
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procedure. Outputs print as a JSON object on stdout.
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Example:
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/mnt/c/Users/NAURA/.local/bin/uv.exe run python \
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.claude/skills/halcon/scripts/run_program.py \
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--program C:/workspace/agent-studio/halcon-001/demo_prog.hdev \
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--get Total --get Area --get Message
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Notes:
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- The program must be self-contained and non-interactive (no draw_*, no stop()).
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- Use ABSOLUTE paths inside the program (no cwd notion under HDevEngine).
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"""
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import argparse
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import json
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import sys
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from _common import jsonable
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def main() -> int:
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ap = argparse.ArgumentParser(description="Run a HALCON .hdev via HDevEngine")
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ap.add_argument("--program", required=True, help="Absolute path to the .hdev")
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ap.add_argument("--get", dest="gets", action="append", default=[],
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metavar="Name", help="Control variable to read (repeatable)")
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args = ap.parse_args()
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try:
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from halcon.hdevengine import HDevProgram, HDevProgramCall, HDevEngineError
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except Exception as e:
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print(f"ERROR: cannot import HDevEngine ({e}). Run via the project venv "
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f"using uv.", file=sys.stderr)
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return 1
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program = HDevProgram(args.program)
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call = HDevProgramCall(program)
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try:
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call.execute()
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except HDevEngineError as e:
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print(json.dumps({"ok": False, "error": str(e)}, ensure_ascii=False))
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return 3
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out = {}
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for name in args.gets:
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try:
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out[name] = jsonable(call.get_control_var_by_name(name))
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except HDevEngineError as e:
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out[name] = {"error": str(e)}
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print(json.dumps({"ok": True, "vars": out}, ensure_ascii=False))
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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