In case you haven t realized it, building computer systems is hard. As the complexity of the system gets greater, the task of building the software gets exponentially harder. As in any profession, we can progress only by learning, both from our mistakes and from our successes. This book represents some of this learning written in a form that I hope will help you to learn these lessons quicker than I did, or to communicate to others more effectively than I did before I boiled these patterns down.
This is an example how one could hide a process on Windows based
operation systems from task viewers like ProcDump (G-RoM, Lorian
& Stone) or ProcessExplorer (SysInternals).
It could e.g. be used as some kind of dump protection.
The way to get this done is very different on NT and 9x machines.
This a simple compressor based on aplib, yoda s Kernel code, and my own
stuffing around. It only has one function with MANY limitations at the moment,
but it is desinged for demo purposes only so it don t matter.
aPLib is a 32-bit compression library based on the compression algorithm
used in aPACK (my executable packer). aPLib is an easy-to-use alternative
to many of the heavy-weight compression libraries available.
to show the waveform of audio file and play it on computer
Purpose: Familiar with WAV file format and UI design
It should have the following functions:
Provide a Graphic User Interface for user to browse the file system and select one WAV file
Show the waveform of input audio signal
Play the selected WAV file
Print the parameters of WAV file such as sampling rate, bit-depth, etc
