当我尝试从Visual Studio 2019（var x = new DelphiCOMServiceImplementation();）的32位WPF .NET项目中调用我的Delphi COM对象时出现以下错误：
使用CLSID检索组件的COM类工厂 由于以下原因，{D448873F-EAF7-4F40-8BC7-EF9853E64A0F}失败 错误：80040154未注册类（HRESULT的异常： 0x80040154（REGDB_E_CLASsnOTREG）。
在32位Delphi activeX项目侧（我正在运行Delphi 10.3），我的COM接口如下：
TLB的Pascal接口生成如下：
interface
uses Winapi.Windows,System.Classes,System.Variants,System.Win.StdVCL,Vcl.Graphics,Vcl.OleServer,Winapi.activeX;
// *********************************************************************//
// GUIDS declared in the Typelibrary. Following prefixes are used:
// Type libraries : LIBID_xxxx
// CoClasses : CLASS_xxxx
// DISPInterfaces : DIID_xxxx
// Non-DISP interfaces: IID_xxxx
// *********************************************************************//
const
// Typelibrary Major and minor versions
DelphiCOMServiceMajorVersion = 1;
DelphiCOMServiceMinorVersion = 0;
LIBID_DelphiCOMService: TGUID = '{E999851C-1E08-4C64-B82A-C3A979F96C2F}';
IID_IDelphiCOMService: TGUID = '{D91553DB-A372-4279-AD31-9A1AE0C68F23}';
CLASS_DelphiCOMServiceImplementation: TGUID = '{D448873F-EAF7-4F40-8BC7-EF9853E64A0F}';
type
// *********************************************************************//
// Forward declaration of types defined in Typelibrary
// *********************************************************************//
IDelphiCOMService = interface;
IDelphiCOMServiceDisp = dispinterface;
// *********************************************************************//
// Declaration of CoClasses defined in Type library
// (NOTE: Here we map each CoClass to its Default Interface)
// *********************************************************************//
DelphiCOMServiceImplementation = IDelphiCOMService;
// *********************************************************************//
// Interface: IDelphiCOMService
// flags: (4416) Dual OleAutomation Dispatchable
// GUID: {D91553DB-A372-4279-AD31-9A1AE0C68F23}
// *********************************************************************//
IDelphiCOMService = interface(IDispatch)
['{D91553DB-A372-4279-AD31-9A1AE0C68F23}']
procedure EmbedWPFWindow(Pointer: LongWord; Width: SYSINT; Height: SYSINT); safecall;
procedure WindowResized(Width: SYSINT; Height: SYSINT); safecall;
end;
// *********************************************************************//
// DispIntf: IDelphiCOMServiceDisp
// flags: (4416) Dual OleAutomation Dispatchable
// GUID: {D91553DB-A372-4279-AD31-9A1AE0C68F23}
// *********************************************************************//
IDelphiCOMServiceDisp = dispinterface
['{D91553DB-A372-4279-AD31-9A1AE0C68F23}']
procedure EmbedWPFWindow(Pointer: LongWord; Width: SYSINT; Height: SYSINT); dispid 201;
procedure WindowResized(Width: SYSINT; Height: SYSINT); dispid 202;
end;
// *********************************************************************//
// The Class CoDelphiCOMServiceImplementation provides a Create and CreateRemote method to
// create instances of the default interface IDelphiCOMService exposed by
// the CoClass DelphiCOMServiceImplementation. The functions are intended to be used by
// clients wishing to automate the CoClass objects exposed by the
// server of this typelibrary.
// *********************************************************************//
CoDelphiCOMServiceImplementation = class
class function Create: IDelphiCOMService;
class function CreateRemote(const MachineName: string): IDelphiCOMService;
end;
implementation
uses System.Win.ComObj;
class function CoDelphiCOMServiceImplementation.Create: IDelphiCOMService;
begin
Result := CreateComObject(CLASS_DelphiCOMServiceImplementation) as IDelphiCOMService;
end;
class function CoDelphiCOMServiceImplementation.CreateRemote(const MachineName: string): IDelphiCOMService;
begin
Result := CreateRemoteComObject(MachineName,CLASS_DelphiCOMServiceImplementation) as IDelphiCOMService;
end;
end.
我的Delphi CoClass实现如下（这是它似乎找不到已注册的类，因此我想知道我的实现是否正确或是否错过了一些细节）：
unit DelphiCOMServiceUnit;
interface
uses ComObj,DelphiCOMService_TLB,Winapi.activeX,StdVcl;
type
DelphiCOMServiceImplementation = class(TAutoObject,IDelphiCOMService)
public
procedure EmbedWPFWindow(Pointer: LongWord; Width: SYSINT; Height: SYSINT); safecall;
procedure WindowResized(Width: SYSINT; Height: SYSINT); safecall;
end;
implementation
procedure DelphiCOMServiceImplementation.EmbedWPFWindow(Pointer: LongWord; Width: SYSINT; Height: SYSINT); safecall;
begin
end;
procedure DelphiCOMServiceImplementation.WindowResized(Width: SYSINT; Height: SYSINT); safecall;
begin
end;
end.
我尝试了regsvr32的32位和64位版本，没有任何问题（它总是成功注册）：
regsvr32 DelphiCOMService.dll
C:\Windows\SysWOW64\regsvr32.exe DelphiCOMService.dll
我尝试在DelphiCOMService.dll上运行 dumpbin / exports ，对我来说没问题：
DelphiCOMService.dll文件的转储
文件类型：DLL
该部分包含DelphiCOMService.dll的以下导出
00000000 characteristics 0 time date stamp 0.00 version 1 ordinal base 8 number of functions 8 number of names ordinal hint RVA name 7 0 00101BE0 DllCanUnloadNow 8 1 00101B98 DllgetclassObject 4 2 00101C90 DllInstall 6 3 00101C08 DllRegisterServer 5 4 00101C4C DllUnregisterServer 3 5 00065514 TMethodImplementationIntercept 2 6 00010890 __dbk_fcall_wrapper 1 7 00214640 dbkFCallWrapperAddr摘要
7000 .bss 6000 .data 997000 .debug 1000 .didata 1000 .edata 4000 .idata 2000 .itext 1000 .rdata 30000 .reloc 7000 .rsrc 208000 .text
有人可以告诉我如何使C＃能够调用我的Delphi COM对象的函数吗？我在创建包含DelphiCOMServiceImplementation类型的单元时是否错过了某些东西，或者在实现它时错过了细节，因此导致CoClass找不到注册对象？我试图找到我在Delphi版本中一直阅读的COM向导，以便使用它们创建一个类，并将有效的与无效的版本进行比较，但是在我的Delphi版本中找不到用于创建的向导COM类。
