Working in background cursor when applications are started

[Thyme Lawn]

When a Windows application starts up the default behaviour is to display the working in background cursor for 2 seconds (see the ​STARTUPINFO page on MSDN).

The following patch to app_start.C will prevent the cursor from being changed when BOINC starts a science application.

445c445,446
<     //startup_info.cb = sizeof(startup_info);
--
>     startup_info.cb = sizeof(startup_info);
>     startup_info.dwFlags=STARTF_FORCEOFFFEEDBACK;

This change has already been applied to the CPDN controller program to prevent the cursor from being changed during post-processing (when a program is started 100+ times and was causing the cursor to flicker in a very noticeable and disconcerting fashion).

[davea]

I checked in the suggested change. - David