(x_set_frame_alpha): Do nothing if alpha is negative.

diff --git a/src/w32term.c b/src/w32term.c
index 7201455e1fff5f7ab16619772e14369ec01e6adf..3e73ceba428e2ac6233c34e3083276661ed167a5 100644 (file)
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -439,7 +439,9 @@ x_set_frame_alpha (f)
   else if (INTEGERP (Vframe_alpha_lower_limit))
     alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
 
-  if (alpha < 0.0 || 1.0 < alpha)
+  if (alpha < 0.0)
+    return;
+  else if (alpha > 1.0)
     alpha = 1.0;
   else if (alpha < alpha_min && alpha_min <= 1.0)
     alpha = alpha_min;

diff --git a/src/xterm.c b/src/xterm.c
index eef22a51443dd09986a797b8037e82ce1ca0a8f6..2a0f783580e0deee57e6659e02718a0a8b1d3740 100644 (file)
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -487,7 +487,9 @@ x_set_frame_alpha (f)
   else if (INTEGERP (Vframe_alpha_lower_limit))
     alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;
 
-  if (alpha < 0.0 || 1.0 < alpha)
+  if (alpha < 0.0)
+    return;
+  else if (alpha > 1.0)
     alpha = 1.0;
   else if (0.0 <= alpha && alpha < alpha_min && alpha_min <= 1.0)
     alpha = alpha_min;