Send a request when nTriangles is 0, so that mesh will be removed

1 files changed, 10 insertions, 0 deletions

diff --git a/src/Xcomposite.c b/src/Xcomposite.c
index 063834d..b1b3ef3 100644
--- a/src/Xcomposite.c
+++ b/src/Xcomposite.c
@@ -413,6 +413,16 @@ XCompositeSetTriangularCoordinateMesh (Display		  *dpy,
 
     XCompositeSimpleCheckExtension (dpy, info);
     LockDisplay (dpy);
+    if (!nTriangle)
+    {
+	GetReq (CompositeSetTriangularCoordinateMesh, req);
+	req->reqType = info->codes->major_opcode;
+	req->compositeReqType = X_CompositeSetTriangularCoordinateMesh;
+	req->window = window;
+	req->flags = CompositeSetMeshBegin | CompositeSetMeshEnd;
+	req->nNorm = 0;
+	req->nGrab = 0;
+    }
     while (nTriangle)
     {
 	GetReq (CompositeSetTriangularCoordinateMesh, req);