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Reference for unit 'Forms' (#lcl)

TCustomForm.WMDPIChanged

Handles the LM_DPICHANGED window message for the form.

Declaration

Source position: forms.pp line 623

protected procedure TCustomForm.WMDPIChanged(

var Msg: TLMessage

); message;

Msg

Window message handled in the method.

Calls AutoAdjustLayout to apply the DPI setting in Message. This action is performed when:

The Parent for the form has not been assigned.
Scaled is enabled for both the Application and the form instance.
The DPI setting in Message is different than the PixelsPerInch value for the form.

Version 4.0

Generated 2025-05-03