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-rw-r--r--sys/src/libdraw/mouse.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/src/libdraw/mouse.c b/sys/src/libdraw/mouse.c
index 6138d03c7..4f36abc73 100644
--- a/sys/src/libdraw/mouse.c
+++ b/sys/src/libdraw/mouse.c
@@ -26,8 +26,11 @@ closemouse(Mousectl *mc)
int
readmouse(Mousectl *mc)
{
- if(mc->image)
- flushimage(mc->image->display, 1);
+ if(mc->image){
+ Display *d = mc->image->display;
+ if(d->bufp > d->buf)
+ flushimage(d, 1);
+ }
if(recv(mc->c, &mc->Mouse) < 0){
fprint(2, "readmouse: %r\n");
return -1;