I got and error with CodeGuard and I don't know why

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1 total messages Started by Oscar megia.oscar Fri, 27 Jun 2008 11:57

#38

Author: Oscar megia.oscar
Date: Fri, 27 Jun 2008 11:57

35 lines
2031 bytes

Hi

I have a TADOConnection object in a form connected to a SQLServer database.

When I try to open the object:

if (!ADOConnection->Connected) ADOConnection->Open();

CodeGuard shows this error (I compiled with full debug in Borland C++ Builder 6 and also with C++ Builder 2007 with the same problem):
Method called on illegally casted object
Attempt to access 224 byte(s) at 0x010C2460. The 'this' pointer points to heap block 0x010C2460 which is only 220 bytes long.
0x010C2460
   -Adodb::TADOConnection::Open()
   -TForm1::TForm1(Classes::TComponent *)
   -TFormulario::Button3Click(const System::TObject *)
   -0x004EF1F2
   -0x004F20CC
   -Controls::_16864 + 0x28
The memory block (0x010C2460) [size: 220 bytes] was allocated with SysGetMem
    -System::__linkproc__ GetMem + 0xB
    -0x004855EA
    -0x00485836
    -0x00485775
    -Classes::TComponent::ReadState + 0x6
    -0x004D9D92

I've found a solution: Comment this line and when I open the TADODataSet (TADODataSet->Connection=TADOConnection) it opens both without error.

My question is Why I cannot open the TADOConnection without CodeGuard error?

There is a bug in the TADOConnection VCL object?

Thanks in advance
Oscar

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