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authorChong Yidong <[email protected]>2008-11-12 15:51:35 +0000
committerChong Yidong <[email protected]>2008-11-12 15:51:35 +0000
commitf2d5c00fe8a2ab41916c3aec7bf83bf5b3bb3bdb (patch)
tree49ae163acfe3d325f1dae0ceac96f7069f1644e2 /src
parent2f8e69cccae47fcf95e3b4157457456e4147f78a (diff)
Negative alpha means "don't touch".
Diffstat (limited to 'src')
-rw-r--r--src/frame.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/frame.h b/src/frame.h
index fa22b2c875..5cab1f42c5 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -482,7 +482,8 @@ struct frame
/* frame opacity
alpha[0]: alpha transparency of the active frame
- alpha[1]: alpha transparency of inactive frames */
+ alpha[1]: alpha transparency of inactive frames
+ Negative values mean not to change alpha. */
double alpha[2];
/* Exponent for gamma correction of colors. 1/(VIEWING_GAMMA *