Good morning experts,

inside the code for taskman shell for thin client in Platform Builder
4.1 there is place where a function GetForegroundKeyboardTarget(),
mentioned in header is called :

...
SendMessage(GetForegroundKeyboardTarget(),WM_KEYUP, VK_CONTROL,
NULL);
...

I have searched the documentation and only had found, that this
function is a part of core.dll and declaration for this function is at
pwinuser.h.

Can anyone tell what this function is for and what it is supposed to
do ?
In our case this function call appears to hang the active connection
to Citrix Metaframe FR2 from the device using ICA protocol.

Best regards
Sergei