Jeremy White : sane.ds: Return a 0 for MSG_QUERYSUPPORT even for capabilities we don't support.
Alexandre Julliard
julliard at winehq.org
Tue Feb 10 07:45:30 CST 2009
Module: wine
Branch: master
Commit: 22bab0aa3dce10c84efb08bc01ada949b2a9da0e
URL: http://source.winehq.org/git/wine.git/?a=commit;h=22bab0aa3dce10c84efb08bc01ada949b2a9da0e
Author: Jeremy White <jwhite at winehq.org>
Date: Mon Feb 9 13:01:09 2009 -0600
sane.ds: Return a 0 for MSG_QUERYSUPPORT even for capabilities we don't support.
---
dlls/sane.ds/capability.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/dlls/sane.ds/capability.c b/dlls/sane.ds/capability.c
index 1755b6c..e68bc80 100644
--- a/dlls/sane.ds/capability.c
+++ b/dlls/sane.ds/capability.c
@@ -259,5 +259,10 @@ TW_UINT16 SANE_SaneCapability (pTW_CAPABILITY pCapability, TW_UINT16 action)
break;
}
+ /* Twain specifies that you should return a 0 in response to QUERYSUPPORT,
+ * even if you don't formally support the capability */
+ if (twCC == TWCC_CAPUNSUPPORTED && action == MSG_QUERYSUPPORT)
+ twCC = set_onevalue(pCapability, 0, TWTY_INT32);
+
return twCC;
}
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