In recent versions of Delphi, you can use the deprecated directive to flag obsolete methods which should not be used anymore. This allows code which calls them to compile, but the compiler will emit a warning. For example, look at the following declaration from SysUtils:

procedure RaiseLastWin32Error; deprecated; // use RaiseLastOSError

If you call this method in your code, the compiler will emit a warning like this:

[Warning] Unit1.pas[28]: Symbol 'RaiseLastWin32Error' is deprecated

We can see from the comment in SysUtils that RaiseLastOSError is the intended replacement. But not all deprecated methods have such comments, so the list below is intended to help find good replacements.

Contents 1 Methods Deprecated in Delphi for .NET 2 Methods Deprecated due to Platform Compatibility 3 List of Deprecated elements in Delphi 2005 3.1 ActnMenus Unit 3.2 ComCtrls Unit 3.3 Forms Unit 3.3.1 Obsolete (in Forms.pas) 3.4 StdActnMenus Unit 3.5 Deprecated Units 4 List of Deprecated elements in Delphi 7 4.1 Classes Unit 4.2 RTLConsts Unit 4.2.1 Resource Strings 4.3 SysConst Unit 4.3.1 Resource Strings 4.4 System Unit (Default) 4.4.1 Const 4.5 SysUtils Unit

Methods Deprecated in Delphi for .NETEdit

AnsiStartsText

For the WideString overload, use System.String.StartsWith()

Methods Deprecated due to Platform CompatibilityEdit

RaiseLastWin32Error

Use RaiseLastOSError

IncludeTrailingBackslash/ExcludeTrailingBackslash

Use IncludeTrailingPathDelimiter/ExcludeTrailingPathDelimiter

List of Deprecated elements in Delphi 2005Edit

ActnMenus UnitEdit

TCustomActionMenuBar.GetDefaultSounds;

var
   MenuItemControlClass: TMenuItemControlClass deprecated;
   MenuAddRemoveItemClass: TAddRemoveItemClass deprecated;
   MenuButtonControlClass: TMenuButtonControlClass deprecated;
   MenuPopupClass: TCustomPopupClass deprecated;
   MenuCustomizePopupClass: TCustomizeActionToolBarClass deprecated;

ComCtrls UnitEdit

CheckToolMenuDropdown

Use TToolButton.CheckMenuDropDown

Forms UnitEdit

MakeObjectInstance

Use Classes.pas version instead.

FreeObjectInstance

Use Classes.pas version instead.

AllocateHWnd

Use Classes.pas version instead.

DeallocateHWnd

Obsolete (in Forms.pas)Edit

• Subclass3DWnd
• Subclass3DDlg
• SetAutoSubClass
• DoneCtl3D
• InitCtl3D

StdActnMenus UnitEdit

• RegisterStandardMenus

Deprecated UnitsEdit

• OleAuto.pas
• Outline.pas

List of Deprecated elements in Delphi 7Edit

Classes UnitEdit

• TCollection.Added
• TCollection.Deleting

Overwrite TCollection.Notify instead

RTLConsts UnitEdit

Resource StringsEdit

SConvUnknownDescription

No longer used

SInvalidDate

Moved to SysConst unit

SInvalidDateTime

Moved to SysConst unit

SInvalidInteger

Moved to SysConst unit

SInvalidTime

Moved to SysConst unit

STimeEncodeError

Moved to SysConst unit

SysConst UnitEdit

Resource StringsEdit

SVarNotArray

Use SVarInvalid instead

SWin32Error

Use SOSError

SUnkWin32Error

Use SUnkOSError

SVarTypeUnknown

Not used anymore

SVarTypeOutOfRange

Not used anymore

SVarTypeAlreadyUsed

Not used anymore

SVarTypeNotUsable

Not used anymore

SInvalidVarOpWithHResult

Not used anymore

System Unit (Default)Edit

ConstEdit

vmtAfterConstruction

Use VMTOFFSET in asm code instead

RaiseList

Use AcquireExceptionObject instead

SetRaiseList

Use AcquireExceptionObject instead

HPrevInst

Cannot be tested for multiple instances in Win32

UnicodeToUtf8

Use overloaded alternative

Utf8ToUnicode

Use overloaded alternative

TVariantManager

See Variants unit

GetVariantManager

See Variants unit

SetVariantManager

See Variants unit

IsVariantManagerSet

See Variants unit

Don't use:

• vmtSafeCallException
• vmtBeforeDestruction
• vmtDispatch
• vmtDefaultHandler
• vmtNewInstance
• vmtFreeInstance
• vmtDestroy
• vmtQueryInterface
• vmtAddRef
• vmtRelease
• vmtCreateObject

Unknown:

• Mark
• Release
• TextStart

SysUtils UnitEdit

• EStackOverflow
• EWin32Error -> use EOSError (ancestor class of EWin32Error)
• NewStr
• DisposeStr
• AssignStr
• AppendStr

RaiseLastWin32Error

Use RaiseLastOSError