I have before my eyes source code, but I Can't understand certain parts of

1. #pragma - what does it mean, is it some directive for precompilator?.
for example: what does it mean - #pragma resource "*.dfm;" or
or #pragma package (smart_init);?.
2. what does word __fastcall mean in expression
int __fastcall ABC:SetABC() {};
3. what does expression: k = 1 << i; mean?.
4. what is the effect of running following line of text:
SignalForm->CheckBox20->Enabled = (maskIO & 0x08) ? true :
I particularly mean expression in parenthesis: (maskIO & 0x08) what
does it mean?.
Shouldn't there be applied bit conjunction operator?.

Thank You for answer.