Don't flash (open/close) a console on Windows #433
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Just in case there is some doubt about using this technique, MSDN says:
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ISSOtm
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Jun 18, 2024
| GetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), &output_mode); | ||
| SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_VIRTUAL_TERMINAL_INPUT); | ||
| SetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), ENABLE_WRAP_AT_EOL_OUTPUT | ENABLE_PROCESSED_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING); | ||
| has_con_input = GetConsoleMode(hSI, &input_mode); |
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The console code tries to determine if it has a real console by calling
AllocConsolebut this will briefly show a console window in the non-debugger version.GetConsoleModedoes not work on redirected handles, it is a much better choice.This only checks if stdout is connected to a real console, it does not check stdin on purpose. This should in theory allow something like
sameboy_debugger.exe < commands_to_execute.txt.