API Reference VCLLicenseButtonsSample Olf.VCL.AboutDialogForm TOlfAboutDialogForm TOlfAboutDialogForm.SetonButtonBuyClickProc Method On this page Definition Definition Unit: Olf.VCL.AboutDialogForm Package: VCLLicenseButtonsSample Delphi Copy procedure SetonButtonBuyClickProc(const Value: TNotifyEvent) Parameters Value TNotifyEvent