shortcut
 

Hello
can anybody say the keyboard shortcut for the symbol
" █ " -full block

so that I can type this in C++ editor window as well as show it in the user screen or output screen

That's an extended ASCII code. You might not get it if the code page/charset/locale of a system isn't set to produce it. That said, try holding down the ALT key while you type 219 on the number pad.

Here is also a sample code thru which you can look 255 ASCII chracter codes
[code]
void main()
{
int i;
for (i=0;i<255;i++)
printf("[%c == %d]",i,i);
}
[\code]

Probably output will not be in a proper order which you can do by using formating functions