commit 2ee38d1881aeea27bb49acc450631d813d1f28ba
Author: Hubert Figuière <hub@figuiere.net>
Date:   Wed Dec 7 09:44:01 2016 -0500

    Bug 13815 - draw event should return TRUE
    
    This fix the black drawing regression witj Gtk3.22

diff --git a/src/af/xap/gtk/xap_UnixFrameImpl.cpp b/src/af/xap/gtk/xap_UnixFrameImpl.cpp
index 780000e..10f8e00 100644
--- a/src/af/xap/gtk/xap_UnixFrameImpl.cpp
+++ b/src/af/xap/gtk/xap_UnixFrameImpl.cpp
@@ -1208,9 +1208,9 @@ gint XAP_UnixFrameImpl::_fe::delete_event(GtkWidget * w, GdkEvent * /*event*/, g
 }
 
 #if GTK_CHECK_VERSION(3,0,0)
-gint XAP_UnixFrameImpl::_fe::draw(GtkWidget * w, cairo_t * cr)
+gboolean XAP_UnixFrameImpl::_fe::draw(GtkWidget * w, cairo_t * cr)
 #else
-gint XAP_UnixFrameImpl::_fe::expose(GtkWidget * w, GdkEventExpose* pExposeEvent)
+gboolean XAP_UnixFrameImpl::_fe::expose(GtkWidget * w, GdkEventExpose* pExposeEvent)
 #endif
 {
 	XAP_UnixFrameImpl * pUnixFrameImpl = static_cast<XAP_UnixFrameImpl *>(g_object_get_data(G_OBJECT(w), "user_data"));
@@ -1243,7 +1243,7 @@ gint XAP_UnixFrameImpl::_fe::expose(GtkWidget * w, GdkEventExpose* pExposeEvent)
 		pView->draw(&rClip);
 #endif
 	}
-	return FALSE;
+	return TRUE;
 }
 
 static bool bScrollWait = false;
diff --git a/src/af/xap/gtk/xap_UnixFrameImpl.h b/src/af/xap/gtk/xap_UnixFrameImpl.h
index 30ee5d8..a0ff57f 100644
--- a/src/af/xap/gtk/xap_UnixFrameImpl.h
+++ b/src/af/xap/gtk/xap_UnixFrameImpl.h
@@ -152,9 +152,9 @@ protected:
 			static gint key_release_event(GtkWidget* w, GdkEventKey* e);
 			static gint delete_event(GtkWidget * w, GdkEvent * /*event*/, gpointer /*data*/);
 #if GTK_CHECK_VERSION(3,0,0)
-			static gint draw(GtkWidget * w, cairo_t * cr);
+			static gboolean draw(GtkWidget * w, cairo_t * cr);
 #else
-			static gint expose(GtkWidget * w, GdkEventExpose* pExposeEvent);
+			static gboolean expose(GtkWidget * w, GdkEventExpose* pExposeEvent);
 #endif
 			static gint do_ZoomUpdate( gpointer /* xap_UnixFrame * */ p);
 			static void vScrollChanged(GtkAdjustment * w, gpointer /*data*/);
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<div class='path'>path: <a href='/guix/log/?id=35988130c9e485826154f29ff67ce0e1b7c88fbc'>root</a>/<a href='/guix/log/build-aux?id=35988130c9e485826154f29ff67ce0e1b7c88fbc'>build-aux</a>/<a href='/guix/log/build-aux/check-final-inputs-self-contained.scm?id=35988130c9e485826154f29ff67ce0e1b7c88fbc'>check-final-inputs-self-contained.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/build-aux/check-final-inputs-self-contained.scm?id=35988130c9e485826154f29ff67ce0e1b7c88fbc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-12-04 10:57:56 +0100'>2018-12-04</span></td><td><a href='/guix/commit/build-aux/check-final-inputs-self-contained.scm?id=0bc02becca1b4b0b3eddb7972567a75f0d464b72'>Remove most references to hydra.gnu.org.</a><span class='msg-avail'>...<span class='msg-tooltip'>* Makefile.am (assert-binaries-available): Don't mention hydra.gnu.org
in comment.
* build-aux/check-available-binaries.scm: Likewise.
* build-aux/check-final-inputs-self-contained.scm: Likewise.
* doc/guix.texi (SUBSTITUTE-SERVER): New variable.
Use it throughout instead of "mirror.hydra.gnu.org".
* doc/contributing.texi (Submitting Patches): Likewise.
* gnu/services/base.scm (hydra-key-authorization)
(guix-activation): Remove mentions of "hydra.gnu.org" in comments and
messages.
* gnu/system/install.scm (%installation-services): Likewise.
* guix/scripts/size.scm (guix-size): Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-03-25 00:26:13 +0100'>2018-03-25</span></td><td><a href='/guix/commit/build-aux/check-final-inputs-self-contained.scm?id=4debffadb7e166e34fb2ef00e75c4b73977ede15'>maint: Adjust 'check-final-inputs-self-contained' for glibc:static.</a><span class='msg-avail'>...<span class='msg-tooltip'>This change is necessary to cope with
6dff905e51202bbdebbad8811b6509584d12a796.

* build-aux/check-final-inputs-self-contained.scm (final-inputs): Change
'match' pattern to match (LABEL PACKAGE OUTPUT).
</span></span></td><td>Ludovic Courtès</td></tr>