The ReadConsoleInput function can be used to directly access a console's input buffer. When a console is created, mouse input is enabled and window input is disabled. To ensure that the process receives all types of events, this example uses the SetConsoleMode function to enable window and mouse input. Then it goes into a loop that reads and handles console input events.
VOID MouseEventProc(MOUSE_EVENT_RECORD);
VOID ResizeEventProc(WINDOW_BUFFER_SIZE_RECORD);
VOID KeyEventProc(KEY_EVENT_RECORD);
VOID GetInputEvents(VOID);
DWORD main(VOID)
{
HANDLE hStdin;
DWORD cNumRead, fdwMode, fdwSaveOldMode, i;
INPUT_RECORD irInBuf[128];
// Get the standard input handle.
hStdin = GetStdHandle(STD_INPUT_HANDLE);
if (hStdin == INVALID_HANDLE_VALUE)
MyErrorExit("GetStdHandle");
// Save the current input mode, to be restored on exit.
if (! GetConsoleMode(hStdin, &fdwSaveOldMode) )
MyErrorExit("GetConsoleMode");
// Enable the window and mouse input events.
fdwMode = ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT;
if (! SetConsoleMode(hStdin, fdwMode) )
MyErrorExit("SetConsoleMode");
// Loop to read and handle the input events.
while (1)
{
// Wait for the events.
if (! ReadConsoleInput(
hStdin, // input buffer handle
irInBuf, // buffer to read into
128, // size of read buffer
&cNumRead) ) // number of records read
MyErrorExit("ReadConsoleInput");
// Dispatch the events to the appropriate handler.
for (i = 0; i < cNumRead; i++)
{
switch(irInBuf[i].EventType)
{
case KEY_EVENT: // keyboard input
KeyEventProc(irInBuf[i].Event.KeyEvent);
break;
case MOUSE_EVENT: // mouse input
MouseEventProc(irInBuf[i].Event.MouseEvent);
break;
case WINDOW_BUFFER_SIZE_EVENT: // scrn buf. resizing
ResizeEventProc(
irInBuf[i].Event.WindowBufferSizeEvent);
break;
case FOCUS_EVENT: // disregard focus events
case MENU_EVENT: // disregard menu events
break;
default:
MyErrorExit("unknown event type");
break;
}
}
}
return 0;
}