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gdkclipboard-win32.c: Fix call to gdk_clipboard_claim_remote()

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The call to gdk_win32_clipboard_request_contentformats() can return NULL even
without an error condition being hit (such as when the system clipboard is
empty), so check whether the returned GdkContentFormat pointer is not NULL
before calling gdk_clipboard_claim_remote(), which expects it to be not NULL,
otherwise we face a warning from that funtion and the subsequent
g_object_unref().

This at least partially fixes issue #4796.
This commit is contained in:
Chun-wei Fan 2022-03-31 10:36:45 +08:00
parent 04c9c6b428
commit 8519ab56f5
1 changed files with 7 additions and 3 deletions
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10
gdk/win32/gdkclipboard-win32.c
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@ -142,9 +142,13 @@ gdk_win32_clipboard_claim_remote (GdkWin32Clipboard *cb)
cb->sequence_number = -1;
formats = gdk_win32_clipboard_request_contentformats (cb);
gdk_clipboard_claim_remote (GDK_CLIPBOARD (cb), formats);
gdk_content_formats_unref (formats);
cb->sequence_number = GetClipboardSequenceNumber ();
if (formats != NULL)
{
gdk_clipboard_claim_remote (GDK_CLIPBOARD (cb), formats);
gdk_content_formats_unref (formats);
cb->sequence_number = GetClipboardSequenceNumber ();
}
}
static void