TdxCustomForm Class
The base class for DPI-aware DevExpress application forms and dialogs.
Declaration
TdxCustomForm = class abstract(TCustomForm, IdxScaleFactor)Remarks
This class is designed to substitute the TCustomForm class in DPI-aware applications. An instance of the form or dialog window class derived from TdxCustomForm, automatically updates its scaling factor and applies it to all DevExpress controls when your application accepts the WM_DPICHANGED system message. For instance, TdxCustomForm is the base class for alert and popup windows.
This class extends its ancestor with the following members that allow you to:
Disable or enable the form’s DPI awareness functionality (Scaled).
Scale the form and its DPI-aware components (ScaleForPPI).
Apply the form scaling factor to the custom painted geometry (ScaleFactor).
Respond to form DPI changes (ScaleFactorChanged and UpdateImageLists).
Refer to the How to Create a Per-Monitor DPI-Aware Application topic for detailed information on adding DPI awareness to your VCL application.