handle ctrl

diff --git a/src/main.c b/src/main.c
index 81c0f4d..9f986c4 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -211,6 +211,10 @@ static void keypress(unsigned char key, int x, int y)
                }
        }
 
+       if(mod & GLUT_ACTIVE_CTRL) {
+               key &= 0x1f;
+       }
+
        write(pty, &key, 1);
 }