Why I Failed to Get “AutoCAD::IAcadApplicationPtr” on Win7 64-bit

[cisdicad02]

I initialize COM interface in entry function As follows：

if (!AfxOleInit())
{
AfxMessageBox(_T("COM interface Initialization failed"));
return (retCode);
}

Call COM interfaces As follows：

try
{
AutoCAD::IAcadApplicationPtr app=acedGetAcadWinApp()->GetIDispatch(FALSE);
if (app==NULL)
{
acutPrintf(_T("Get IAcadApplicationPtr  Failed\n"));
return;
}

}

The above codes run successfully under XP 32-bit

When I use these codes under Win7 64-bit,they run Incorrectly and return "Get IAcadApplicationPtr  Failed"

Grateful for any help on this problem!

[owenwengerd]

Are you importing the 64-bit type library when you build for x64?

[cisdicad02]

Yes,I have imported the 64-bit type include and library files in my porject, and I have successfully run other founctions on Win7 64-bit

[owenwengerd]

I suggest to write step-by-step code to obtain an IDispatch and query it for IAcadApplication so you can determine exactly which step is failing.

[cisdicad02]

Thank you very much!
I will try what you suggest,and I need your help if there is a problem

[xiaodong_liang · Accepted solution]

This customer logged case through ADN in the same time. We cannot reproduce this issue, and shared some suggestions to isolate the problem. Finally, they solved: I built the ARX of 64 on a XP-32. The problem occurred. I rebuilt the ARX on my colleague's machine Win7-64. It works well. marked as solved.

[cisdicad02]

Thank you very much !
In your help and guidance, the problem has been resolved