Bachelor Thesis - Computer Graphics Group

steps would have to be taken:
1. modify the build system to compile the main application, the hook library
and all the plug-ins in 64-bit mode
2. create a separate 32-bit helper application, able to load a 32-bit version
of the hook library
3. modify the hook library to use dynamically allocated shared memory, so
that both the 32-bit and 64-bit versions of the hook library can share
the common state information
4. skip creation of the helper thread catching messages in the 32-bit version,
send the messages to the 64-bit version’s message thread
The main reasons why this feature has not been implemented were time constraints
and the lack of a computer with a 64-bit CPU running a 64-bit version
of Windows such as Windows XP Professional x64 Edition or Windows Vista
64-bit.
6.2 QtScript
QtScript is a Qt module, which provides powerful scripting support to Qt based
applications. The scripting language is based on ECMAScript 3 rd edition [11],
an internationally recognized standard. JavaScript, which is implemented in
all major web browsers to allow client-side scripting in rich web-based applications,
is also based on this standard. QtScript features include the ability
to use the standard Qt signal/slot mechanism, QObject descendants can be
exposed to the script, and values converted to their equivalent C++ type and
vice versa, etc.
Using QtScript, a new type of command, called script or macro can be implemented.
This would allow execution of user defined macros, written in a
well-known and powerful ECMAScript/JavaScript like language. Taking advantage
of the QtScript abilities, macros would not only be able to access
all the existing commands, but could also retrieve various window or system
properties.
However, with ability comes the responsibility. The design of this feature has
to be well advised in order to preserve the stability of the application, for example
in case the script falls into an endless loop. The script command would
have to be executed in a separate thread. A mechanism to allow termination
of unresponsive scripts has to be provided. The script could be possibly terminated
automatically after a specified timeout interval. A watchdog timer
mechanism could be also implemented.
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