Coinitialize has not been called 错误信息
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【中文标题】Coinitialize has not been called 错误信息【英文标题】:Coinitialize has not been called error message 【发布时间】:2013-05-04 08:47:16 【问题描述】:我正在编写一个控制台应用程序,该应用程序将为我的名为 Client.exe 的主应用程序创建一个防火墙例外,该应用程序通过 FTP 将一些文档上传到我们的服务器。我从Delphi 7 Windows Vista/7 Firewall Exception Network Locations借用了RRUZ代码,我的代码如下:
program ChangeFW;
$APPTYPE CONSOLE
$R *.res
uses
System.SysUtils,
ComObj;
var
ExecName: string;
procedure AddExceptionToFirewall(Const Caption, Executable: String);
const
NET_FW_PROFILE2_DOMAIN = 1;
NET_FW_PROFILE2_PRIVATE = 2;
NET_FW_PROFILE2_PUBLIC = 4;
NET_FW_IP_PROTOCOL_TCP = 6;
NET_FW_ACTION_ALLOW = 1;
var
fwPolicy2 : OleVariant;
RulesObject : OleVariant;
Profile : Integer;
NewRule : OleVariant;
begin
Profile := NET_FW_PROFILE2_PRIVATE OR NET_FW_PROFILE2_PUBLIC;
fwPolicy2 := CreateOleObject('HNetCfg.FwPolicy2');
RulesObject := fwPolicy2.Rules;
NewRule := CreateOleObject('HNetCfg.FWRule');
NewRule.Name := Caption;
NewRule.Description := Caption;
NewRule.Applicationname := Executable;
NewRule.Protocol := NET_FW_IP_PROTOCOL_TCP;
NewRule.Enabled := TRUE;
NewRule.Profiles := Profile;
NewRule.Action := NET_FW_ACTION_ALLOW;
RulesObject.Add(NewRule);
end;
begin
try
TODO -oUser -cConsole Main : Insert code here
ExecName := GetCurrentDir + '\' + 'Client.exe';
AddExceptionToFirewall('SIP Inventory',ExecName);
except
on E: Exception do
Writeln(E.ClassName, ': ', E.Message);
end;
end.
当我执行应用程序时,我收到以下错误消息: EOIeSysError:尚未调用 Coinitialize,ProgID:“HNetCfg.FwPolicy2” 知道我做错了什么吗?你能指出我正确的方向吗?非常感谢。
【问题讨论】:
【参考方案1】:如果您想使用 COM - 对象,您必须使用相应的 CoUninitialize 调用 CoInitialize。
在通常的应用程序中,这已经完成了。 只要您的程序是控制台程序,您就必须自己调用它。
.....
CoInitialize(nil);
try
try
TODO -oUser -cConsole Main : Insert code here
ExecName := GetCurrentDir + '\' + 'Client.exe';
AddExceptionToFirewall('SIP Inventory',ExecName);
except
on E: Exception do
Writeln(E.ClassName, ': ', E.Message);
end;
finally
CoUninitialize;
end;
.....
【讨论】:
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