diff --git a/pdcurses/initscr.c b/pdcurses/initscr.c
index 02c69c4f..df834a5a 100644
--- a/pdcurses/initscr.c
+++ b/pdcurses/initscr.c
@@ -148,6 +148,8 @@ MOUSE_STATUS Mouse_status;
 extern RIPPEDOFFLINE linesripped[5];
 extern char linesrippedoff;
 
+extern FILE *__infd;
+
 WINDOW *initscr(void)
 {
     int i;
@@ -161,6 +163,9 @@ WINDOW *initscr(void)
     if (!SP)
         return NULL;
 
+    if (!__infd)
+        __infd = stdin;
+
     if (PDC_scr_open() == ERR)
     {
         fprintf(stderr, "initscr(): Unable to create SP\n");
@@ -330,7 +335,7 @@ SCREEN *newterm(const char *type, FILE *outfd, FILE *infd)
 
     INTENTIONALLY_UNUSED_PARAMETER( type);
     INTENTIONALLY_UNUSED_PARAMETER( outfd);
-    INTENTIONALLY_UNUSED_PARAMETER( infd);
+    __infd = infd;
     return initscr() ? SP : NULL;
 }
 
diff --git a/vt/pdckbd.c b/vt/pdckbd.c
index c9befcd9..5154274a 100644
--- a/vt/pdckbd.c
+++ b/vt/pdckbd.c
@@ -33,12 +33,12 @@ https://www.gnu.org/software/screen/manual/html_node/Control-Sequences.html
 */
 
 extern bool PDC_resize_occurred;
+FILE	   *__infd = NULL;
 
 static bool check_key( int *c)
 {
     bool rval;
 #ifndef USE_CONIO
-    const int STDIN = 0;
     struct timeval timeout;
     fd_set rdset;
     extern int PDC_n_ctrl_c;
@@ -58,14 +58,14 @@ static bool check_key( int *c)
        return( TRUE);
        }
     FD_ZERO( &rdset);
-    FD_SET( STDIN, &rdset);
+    FD_SET( fileno(__infd), &rdset);
     timeout.tv_sec = 0;
     timeout.tv_usec = 0;
-    if( select( STDIN + 1, &rdset, NULL, NULL, &timeout) > 0)
+    if( select( fileno(__infd) + 1, &rdset, NULL, NULL, &timeout) > 0)
        {
        rval = TRUE;
        if( c)
-          *c = getchar( );
+          *c = fgetc(__infd);
        }
     else
        rval = FALSE;
diff --git a/vt/pdcscrn.c b/vt/pdcscrn.c
index b6104f58..d7ecbae7 100644
--- a/vt/pdcscrn.c
+++ b/vt/pdcscrn.c
@@ -8,6 +8,7 @@
 #include <termios.h>
 #include <sys/ioctl.h>
 
+extern FILE *__infd;
 static struct termios orig_term;
 #endif
 
@@ -100,7 +101,6 @@ static int set_win10_for_vt_codes( const bool setting_mode)
 
 int PDC_rows = -1, PDC_cols = -1;
 bool PDC_resize_occurred = FALSE;
-const int STDIN = 0;
 chtype PDC_capabilities = 0;
 static mmask_t _stored_trap_mbe;
 
@@ -111,14 +111,14 @@ void PDC_reset_prog_mode( void)
 #ifdef USE_TERMIOS
     struct termios term;
 
-    tcgetattr( STDIN, &orig_term);
+    tcgetattr( fileno(__infd), &orig_term);
     memcpy( &term, &orig_term, sizeof( term));
     term.c_lflag &= ~(ICANON | ECHO);
     term.c_iflag &= ~ICRNL;
     term.c_cc[VSUSP] = _POSIX_VDISABLE;   /* disable Ctrl-Z */
     term.c_cc[VSTOP] = _POSIX_VDISABLE;   /* disable Ctrl-S */
     term.c_cc[VSTART] = _POSIX_VDISABLE;   /* disable Ctrl-Q */
-    tcsetattr( STDIN, TCSANOW, &term);
+    tcsetattr( fileno(__infd), TCSANOW, &term);
 #endif
 #ifndef _WIN32
     if( !PDC_is_ansi)
@@ -190,7 +190,7 @@ void PDC_scr_close( void)
    set_win10_for_vt_codes( FALSE);
 #else
    #if !defined( DOS)
-      tcsetattr( STDIN, TCSANOW, &orig_term);
+      tcsetattr( fileno(__infd), TCSANOW, &orig_term);
    #endif
 #endif
    PDC_doupdate( );
@@ -212,7 +212,7 @@ static void sigwinchHandler( int sig)
    struct winsize ws;
 
    INTENTIONALLY_UNUSED_PARAMETER( sig);
-   if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) != -1)
+   if (ioctl( fileno(__infd), TIOCGWINSZ, &ws) != -1)
       if( PDC_rows != ws.ws_row || PDC_cols != ws.ws_col)
          {
          PDC_rows = ws.ws_row;
@@ -283,7 +283,7 @@ int PDC_scr_open(void)
     if (!SP || PDC_init_palette( ))
         return ERR;
 
-    setbuf( stdin, NULL);
+    setbuf(__infd, NULL);
 #ifdef USE_TERMIOS
     sigemptyset(&sa.sa_mask);
     sa.sa_flags = 0;