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Delphi / C++ Builder
Components, utilities and tips for Delphi and C++ Builder developers
Form Designer
FAQ Index
Customizable view
Customizable behaviour
VCL-compatible file and stream formats
IDE-compatible clipboard operations
ActiveX and frames compatibility
Component palette functions
Ready-to-use edit dialogs
DFM Extractor
Control Designer
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Related components
Object Inspector
Runtime Fusion

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Form Designer • VCL-compatible file and stream formats

Form Designer uses only VCL features for storing the forms and components, so it supports both text and binary DFM formats and can save/load the form or component to/from stream in standard VCL stream format.

Any DFM file in text or binary format can be loaded. The only limitation - each loaded component type must be registered with standard VCL RegisterClasses procedure. This is a base limitation of VCL stream system. If the loaded DFM file or stream contains unregistered component type, the Form Designer just ignores this component without error messages or exceptions, but any such error can be processed manually in the application by OnReadError event of TFormDesigner component.

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