🚀 go-pugleaf

Hello out there,
a console mode app of mine needs to periodically perform some action
while still being able to react to input from the user.
I thought that the combination of getting the handle to the input
console and then doing a WaitForSingleObject with a suitable timeout
would accomplish what I need - but it doesn't work.

The program below (when started from a console)
1) repeatedly prints out the message "No key ...." UNTIL any key is
pressed, at which point
2) it ALWAYS goes into the 'ReadConsole' after the WaitForSingleObject
call, whether a key is pressed or not. Of course it blocks there if no
key is pressed - the message "No key ..." is never again seen.

When started via Start | Run, step (1) from above is skipped.

Any help to get me on the right track will be greatly appreciated,
Best regards
Helmut Giese
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#include <windows.h>
#include <stdio.h>

#pragma argsused
int main(int argc, char* argv[])
{
   HANDLE inHdl, outHdl;
   char inBuff[80];
   int done = 0;
   DWORD cnt, dwRes;

   // get console handle
   inHdl = GetStdHandle(STD_INPUT_HANDLE);
   SetConsoleMode(inHdl, 0);
//   SetConsoleMode(inHdl, ENABLE_PROCESSED_INPUT);

   printf("Trying to be busy & responsive in console mode\n");
   while ( !done ) {
      dwRes = WaitForSingleObject(inHdl, 1000);
      if ( dwRes == WAIT_OBJECT_0 ) {
         // input available
         ReadConsole(inHdl, inBuff, 1, &cnt, 0);
         switch ( inBuff[0] ) {
           case '1': printf("Received key '1'\n"); break;
           case '2': printf("Received key '2'\n"); break;
           case 'q': done = 1; break;
         }
      } else {
         printf("No key - going to do other work\n");
      }
   }

   return 0;
}
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