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Docs: LCL/forms. Updates TCustomForm.IconChanged topic for changes in 01640ee2. Issue #41189.

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(cherry picked from commit 3325629775)
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dsiders 2024-10-30 02:14:31 +01:00
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commit 811864db81
1 changed files with 40 additions and 4 deletions
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docs/xml/lcl/forms.xml
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@ -4209,12 +4209,48 @@ in the widgetset class.
<element name="TCustomForm.IconChanged">
<short>
Loads the new form icons, and notifies the widgetset and all forms.
Resets icon handle(s) for the form when CMIconChanged is called for the class
instance.
</short>
<descr>
<p>
<var>IconChanged</var> is a method used to to perform actions needed when the
CMIconChanged method is executed to handle a CM_ICONCHANGED message for the
form. It is assigned in the CreateNew constructor as the OnChange event handler
for the Icon property in the class instance.
</p>
<p>
IconChanged recreates handles for icons used on the form instance. If the
handle for the form instance has been allocated, values in SmallIconHandle and
BigIconHandle are reset to the unassigned handle value (0). IconChanged calls
SetIcon in the widgetset class to send modified values to the widget. If the
form is the MainForm for the Application, or the form has a BorderStyle
<b>other than</b> bsDialog or bsNone, the values in SmallIconHandle and
BigIconHandle are sent to the widget. For form instances with a different value
in BorderStyle, the unassigned handle value (0) is used for both icon handles.
</p>
<p>
Changing the value in BorderStyle or Icon at run-time causes IconChanged to be
performed for the form instance.
</p>
</descr>
<seealso>
<link id="TCustomForm.SmallIconHandle"/>
<link id="TCustomForm.BigIconHandle"/>
<link id="TCustomForm.Icon"/>
<link id="TCustomForm.BorderStyle"/>
<link id="TCustomForm.CreateNew"/>
<link id="TApplication.MainForm"/>
<link id="Application"/>
<link id="#lcl.graphics.TIcon.OnChange">TIcon.OnChange</link>
<link id="#lcl.controls.TWinControl.HandleAllocated">TWinControl.HandleAllocated</link>
</seealso>
</element>
<element name="TCustomForm.IconChanged.Sender">
<short>
Object instance (TCustomForm) for the change notification.
</short>
<descr/>
<seealso/>
</element>
<element name="TCustomForm.IconChanged.Sender"/>
<element name="TCustomForm.DelayedEvent">
<short>