dll中的窗体中有个按钮调用 try
ADOConnection1.Connected:=True ;
Application.MessageBox(连接正确);
except
Application.MessageBox(连接错误);
end;来检查连接是否正确.在给定连接字符串后.调用上面的代码,可以弹出 "连接正确"的对话框,但过一两秒就会出来错误
---------------------------
Debugger Fault Notification
---------------------------
Project F:\Delphi_Project\Delphi\MyStudy\Dll调用\Project1.exe raised too many consecutive exceptions: 'access violation at 0xff640158: read of address 0xff640158'. Process Stopped. Use Step or Run to continue.
---------------------------
OK Help
---------------------------只要不调用ADOConnection1.connected:=True;就都正确.只要调用了就会出错.
什么原因啊delphi7 + win2000
ADOConnection1.Connected:=True ;
Application.MessageBox(连接正确);
except
Application.MessageBox(连接错误);
end;来检查连接是否正确.在给定连接字符串后.调用上面的代码,可以弹出 "连接正确"的对话框,但过一两秒就会出来错误
---------------------------
Debugger Fault Notification
---------------------------
Project F:\Delphi_Project\Delphi\MyStudy\Dll调用\Project1.exe raised too many consecutive exceptions: 'access violation at 0xff640158: read of address 0xff640158'. Process Stopped. Use Step or Run to continue.
---------------------------
OK Help
---------------------------只要不调用ADOConnection1.connected:=True;就都正确.只要调用了就会出错.
什么原因啊delphi7 + win2000
initialization
CoInitialize(nil);finalization
CoUninitialize;
CoInitialize(nil); finalization
CoUninitialize;加了.TADOConnection 也是动态创建的.
真是搞不明白了.
begin
case dwReason of
DLL_PROCESS_ATTACH:CoInitialize(nil);
DLL_PROCESS_DETACH:CoUnInitialize();
end;
end;代码太少,本身看不出什么错误来,问题应该不在这里,这里的application从新传递过handle么?是不是那个对象已经被释放了?