diff --git a/docs/xml/lcl/stdctrls.xml b/docs/xml/lcl/stdctrls.xml
index 114f476ae6..f361e7986d 100644
--- a/docs/xml/lcl/stdctrls.xml
+++ b/docs/xml/lcl/stdctrls.xml
@@ -2456,6 +2456,11 @@ width for the list is calculated using the ItemWidth and
ItemHeight properties. The dimensions are passed to the widgetset
class using the SetComboMinDropDownSize routine in the LCL interface.
+
+In the current LCL version, AdjustDropDown is not implemented for the QT
+platforms. They do not implement SetComboMinDropDownSize called to update the
+widgetset class when one of the values is changed.
+
@@ -3011,6 +3016,11 @@ Setting a new value for the property causes the AdjustDropDown
method to be called to adjust the dimensions for the list to the values in
ItemHeight, ItemWidth, and DropDownCount.
+
+In the current LCL version, ItemWidth is not implemented for the QT platforms.
+They do not implement SetComboMinDropDownSize called to update the widgetset
+class when the value is changed.
+
Use ItemHeight to specify the number of pixels required for items
displayed in the drop-down list for the control.