<table><tr><td style="">davidedmundson added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D29122">View Revision</a></tr></table><br /><div><div><blockquote style="border-left: 3px solid #a7b5bf; color: #464c5c; font-style: italic; margin: 4px 0 12px 0; padding: 4px 12px; background-color: #f8f9fc;"><p>I think we could consider this interface public API and adding new arguments changes the DBus signature iirc.</p></blockquote>

<p>Perhaps we should just add a new overload.</p>

<p>You're right that DBus would fail if you don't call with the right number of arguments to match a method signature, but you underestimate QtDBus. It's /amaaaazing/</p>

<p>It knows some arguments are defaults, for the existing code it currently generates:</p>

<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);"><method name="screenshotScreen">
  <arg name="fd" type="h" direction="in"/>
  <arg name="captureCursor" type="b" direction="in"/>
</method>
<method name="screenshotScreen">
  <arg name="fd" type="h" direction="in"/>
</method></pre></div>

<p>In this case it'll just add a 3rd.</p>

<p>Though <a href="https://phabricator.kde.org/p/meven/" style="
              border-color: #f1f7ff;
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                padding: 0 4px;">@meven</a> can you just run qdbus org.kde.KWin /Screenshot org.freedesktop.DBus.Introspectable.Introspect and double check.</p></div></div><br /><div><strong>INLINE COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D29122#inline-166179">View Inline</a><span style="color: #4b4d51; font-weight: bold;">screenshot.cpp:409</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; ">                <span class="n">p</span><span class="p">.</span><span class="n">end</span><span class="p">();</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);"><span class="bright">            </span><span class="n"><span class="bright">m_multipleOutputsRendered</span></span><span class="bright"> </span><span style="color: #aa2211"><span class="bright">=</span></span><span class="bright"> </span><span class="n"><span class="bright">m_multipleOutputsRendered</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">united</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">intersection</span></span><span class="bright"></span><span class="p"><span class="bright">);</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);">            <span class="bright"></span><span style="color: #aa4000"><span class="bright">if</span></span><span class="bright"> </span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">m_m</span>ultipleOutputs<span class="bright">Rendered</span></span><span class="bright"></span><span class="p"><span class="bright">.</span></span><span class="bright"></span><span class="n"><span class="bright">boundingRect</span></span><span class="bright"></span><span class="p"><span class="bright">()</span></span><span class="bright"> </span><span style="color: #aa2211"><span class="bright">==</span></span><span class="bright"> </span><span class="n"><span class="bright">m_scheduledGeometry</span></span><span class="bright"></span><span class="p"><span class="bright">)</span></span><span class="bright"> </span><span class="p"><span class="bright">{</span></span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(251, 175, 175, .7);">                <span class="n">sendReplyImage</span><span class="p">(</span><span class="n">m_multipleOutputsImage</span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);">
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);">            <span class="bright">    </span><span class="n"><span class="bright">sendReplyImage</span></span><span class="bright"></span><span class="p"><span class="bright">(</span></span><span class="bright"></span><span class="n"><span class="bright">m</span>ultipleOutputs<span class="bright">Image</span></span><span class="bright"></span><span class="p"><span class="bright">);</span></span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">Please clear m_cacheOutputsImages so we're not wasting ram</p></div></div></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R108 KWin</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D29122">https://phabricator.kde.org/D29122</a></div></div><br /><div><strong>To: </strong>meven, KWin, davidedmundson, bport, zzag, apol<br /><strong>Cc: </strong>broulik, kwin, Orage, cacarry, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart<br /></div>