diff --git a/docs/xml/lcl/dialogs.xml b/docs/xml/lcl/dialogs.xml
index af9f5ac039..b2815931dd 100644
--- a/docs/xml/lcl/dialogs.xml
+++ b/docs/xml/lcl/dialogs.xml
@@ -3161,6 +3161,41 @@ If a valid directory is given, the selected directory in the tree will be set to
       <element name="TFileDialog.FindMaskInFilter">
         <short>Find position of a mask in the given filter</short>
       </element>
+    <element name="TTaskDialog"><short>Creates full-features modal dialogs at runtime.</short><descr>Non-visual component, creates modal dialogs in runtime, with rich UI elements, like Windows TaskDialog API.</descr>
+      </element>
+    <element name="TTaskDialog.Buttons"><short>Collection of items that describe buttons in dialog. Additional to CommonButtons.</short>
+      </element><element name="TTaskDialog.Caption"><short>Caption of dialog's form.</short>
+      </element><element name="TTaskDialog.Title"><short>Text that is shown above main info text, with big font and bold style.</short>
+      </element><element name="TTaskDialog.VerificationText"><short>If not empty, dialog shows check-box with this caption, at the bottom.</short>
+      </element>
+    <element name="TTaskDialog.Text"><short>Text that is shown as main information in the dialog.</short>
+      </element><element name="TTaskDialog.DefaultButton"><short>Index of default button, from set of CommonButtons property.</short>
+      </element><element name="TTaskDialog.CommonButtons"><short>Set of standard buttons in dialog: OK, Cancel, Yes etc. Additional to Buttons.</short>
+      </element><element name="TTaskDialog.ExpandButtonCaption"><short>Dialog can have "expand button", with specified caption that shows additional info.</short>
+      </element><element name="TTaskDialog.ExpandedText"><short>Text that is shown, when "expand button" clicked, or dialog has expanded state.</short>
+      </element><element name="TTaskDialog.Flags"><short>Set of advanced options for dialog.</short>
+      </element><element name="TTaskDialog.FooterIcon"><short>Icon for the footer area, at the bottom.</short>
+      </element><element name="TTaskDialog.FooterText"><short>Text that shows in the footer area, at the bottom.</short>
+      </element><element name="TTaskDialog.MainIcon"><short>Icon for the main info in dialog.</short>
+      </element><element name="TTaskDialog.RadioButtons"><short>Collection of items that describe radio-buttons, they show in the lower part.</short>
+      </element>
+    <element name="TTaskDialogFlag.tfEnableHyperlinks"><short>Allow to underline URLs in texts, and to click them.</short>
+      </element><element name="TTaskDialogFlag.tfUseHiconMain"><short>Allow to load main icon from app resources.</short>
+      </element><element name="TTaskDialogFlag.tfAllowDialogCancellation"><short>Allow to cancel dialog by Esc key, or Alt+F4 (ie OS default hotkey).</short>
+      </element><element name="TTaskDialogFlag.tfVerificationFlagChecked"><short>Bottom check-box (verification) shows in the checked state.</short>
+      </element><element name="TTaskDialogFlag.tfCanBeMinimized"><short>Allow to minimize dialog.</short>
+      </element><element name="TTaskDialogFlag.tfRtlLayout"><short>Allow to use Right-to-Left layout for texts.</short>
+      </element><element name="TTaskDialogFlag.tfShowProgressBar"><short>Show additional progress-bar.</short>
+      </element><element name="TTaskDialogFlag.tfExpandedByDefault"><short>Dialog shows in the "expanded" state, more controls are visible.</short>
+      </element><element name="TTaskDialogFlag.tfExpandFooterArea"><short>Footer area shows fully visible.</short>
+      </element><element name="TTaskDialogFlag.tfNoDefaultRadioButton"><short>Don't set any of radio-buttons as default (for Enter key).</short>
+      </element><element name="TTaskDialogFlag.tfShowMarqueeProgressBar"><short>Show additional progress-bar, in the marquee style, never ending progress.</short>
+      </element><element name="TTaskDialogFlag.tfUseHiconFooter"><short>Allow to load icon for footer, from app resources.</short>
+      </element><element name="TTaskDialogFlag.tfUseCommandLinks"><short>Custom buttons will be shown as big buttons in the middle of the dialog; and text after "\n", in caption, will be shown as hint.</short>
+      </element><element name="TTaskDialogFlag.tfUseCommandLinksNoIcon"><short>For custom buttons, in the "command links" mode, also show default icon.</short>
+      </element><element name="TTaskDialogFlag.tfCallbackTimer"><short>Use timer that activates some choice, after some number of seconds.</short>
+      </element><element name="TTaskDialogFlag.tfPositionRelativeToWindow"><short>Form position will be poOwnerFormCenter, instead of poScreenCenter.</short>
+      </element>
     </module>
     <!-- Dialogs -->
   </package>