Avoid collision with existing getch() function on win

Author: urfeex

doc/examples/external_fts_through_rtde.rst

@@ -63,7 +63,7 @@ keyboard input commands.
 Input key handling
 ------------------
 
-For handling the keyboard input, define a ``getch()`` function that reads a single character from
+For handling the keyboard input, define a ``getChar()`` function that reads a single character from
 the terminal without waiting for a newline character. This has to be done differently on Windows
 and Linux (and other unix-like systems), therefore the code is split using preprocessor directives.
 
@@ -72,7 +72,7 @@ and Linux (and other unix-like systems), therefore the code is split using prepr
    :caption: external_fts_through_rtde/freedrive_example.cpp
    :linenos:
    :lineno-match:
-   :start-at: // Platform-specific implementation of getch()
+   :start-at: // Platform-specific implementation of getChar()
    :end-at: #endif
 
 Setting the external force-torque values

examples/external_fts_through_rtde.cpp

@@ -34,17 +34,17 @@
 #include "ur_client_library/example_robot_wrapper.h"
 #include "ur_client_library/types.h"
 
-// Platform-specific implementation of getch()
+// Platform-specific implementation of getChar()
 #if defined(_WIN32) || defined(_WIN64)
 #  include <conio.h>
-char getch()
+char getChar()
 {
   return _getch();  // Windows-specific
 }
 #else
 #  include <termios.h>
 #  include <unistd.h>
-char getch()
+char getChar()
 {
   termios oldt, newt;
   char ch;
@@ -77,7 +77,7 @@ void ftInputTui()
   while (g_RUNNING)
   {
     std::cout << instructions << std::endl;
-    char ch = getch();
+    char ch = getChar();
 
     std::cout << "<'" << ch << "' pressed>" << std::endl;