i use vc2005. when i debug in a function,the cursor doesn't piont to the excuted line. it piont to other lines before the excuted line. this has happened both in my own functions and functions of mfc library. i am using c++,mfc, xp professional sp2, and compiling with /Od (Disable optimization) . i clean the solution, and rebuild it. it don't become normal. how shold i do?

i use vc++2005, mfc, xp professional sp2.when i debug in functions of a files,the cursor doesn't exactly piont to the excuted line, but it piont to the third line before the excuted line. however,in the other files, everything is normal. i cleaned the solution and rebuilded it, but it don't work yet. what shold i do to make it normal?

i want to chang the data of VT_DATE to the one of VT_BSTR with the VariantChangeTypeEx(&vargDest,&varSrc,2052,0,VT_BSTR) function, but only a part of the data is changed. for example,2005-12-20 0:00:00 is converted to 2005-12-20 of VT_BSTR, but 1899-12-30 21:30:00 is converted to 21:30:00 of VT_BSTR. both 2005-12-20 0:00:00 and 1899-12-30 21:30:00 are from sql server, and 2005-12-20 0:00:00 is smalldatetime; 1899-12-30 21:30:00 is datetime. how can i get the complete VT_BSTR data?

are there the functions that convert the datetime format to string format?

i have another question. how can i write the data of datetime type in sql server to the html document. the data of datetime from database is VARIANT (VT_DATE), but there is not datetime type in html. could you tell me how to do? thanks

why will the exception appear, when the mfcie's window is maximized from normal or normal from maximized? Warning: constructing COleException, scode = DISP_E_MEMBERNOTFOUND ($80020003). Warning: constructing COleException, scode = DISP_E_MEMBERNOTFOUND ($80020003). First-chance exception in Book.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception. First-chance exception in Book.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception. the mfcie is a sample of MSDN.

i call SysFreeString(bstr) for bstr , the param[0] is equal to bstr , and has nothing to bstr . i release bstr , but param[0] still exist. what's more, when i make param[1].vt = VT_BSTR; param[1].bstrVal = bstr;, the problem disappears. so i think the problem has nothing with SysFreeString(bstr).

IHTMLDocument2 *document; // Declared earlier in my code HRESULT hr = GetHtmlDocument()->QueryInterface(IID_IHTMLDocument2,(void**) &document); if (!SUCCEEDED(hr)) { return; } HRESULT hresult = S_OK; VARIANT *param; SAFEARRAY *sfArray; BSTR bstr = SysAllocString(OLESTR("hjgjhgjghjhgjhgjhg

")); sfArray = SafeArrayCreateVector(VT_VARIANT, 0, 2); // Creates a new one-dimensional array if (sfArray == NULL || document == NULL) { goto cleanup; } hresult = SafeArrayAccessData(sfArray,(LPVOID*) & param);//获取数组元素 param[0].vt = VT_BSTR; param[0].bstrVal = bstr; param[1].vt = VT_R8; param[1].dblVal = 3.4567; hresult = SafeArrayUnaccessData(sfArray); hresult = document->writeln(sfArray); cleanup: SysFreeString(bstr); if (sfArray != NULL) { SafeArrayDestroy(sfArray); } when i debug , in SafeArrayDestroy(sfArray),an error arises : HEAP[Book.exe]: Invalid Address specified to RtlSizeHeap( 00140000, 02CF0358 ),and there is a messagebox: user breakpoint called from code at ox7c921230. how can i dispose of it? thanks.

i build a app. its view is drived chtmview, and it can explore internet. but i want chang the content in chtmview, when i open a html page. for example, i want show the datas that are from database in view. how can i do?

i debug my program in VC6.0. when it is closed, the exception "First-chance exception in F863.exe: 0xC0000005: Access Violation." will appear. and the cursor points to m_pInterface->Release().here are some codes: void _Release() throw() { if (m_pInterface != NULL) { m_pInterface->Release(); } } i define the variant:IApplicationPtr m_Application, and i find the exception occured in m_Application->Release(). here are some codes: int CF863App::ExitInstance() { if (m_Application != 0) m_Application->Release(); return CWinApp::ExitInstance(); } how can i resolve it?

where can i find the instruction of crystal report9 RDC when i use it with vc6.0? there are only instructions about vb6.0 in its help. i dont know how to use the functions of report object in VC6.0. where can i find them?

CString strTemp strTemp.Format("%-60s%-20.1f\r\n%-60s%-20.1f\r\n%-60s%-20.1f\r\n","Global Wall",0,"Limiting Potential",0,"Roughness Correlation",0); TRACE("output:%s\n",strTemp); when debugging, the output is: output:Global Wall 0.0 (null) 0.0 ? -2.0 how can i dispose of the problem?

today, when i open my workspace in vc6.0, i don't find my view class in workspace window. but the .pp and .h files of the view class still exist. other classes also exist. i can use class wizard to edit the view class. how can i get it back?

before long, the program can run without error,but today it don't run. m_pConnection.CreateInstance("ADODB.Connection") return 0, and there is the exception----First-chance exception in GIS.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++ Exception. i write it in mfc. how can figure it out ?

i want to apply ado to access database. i put following in my stdafx.h #import "c:\Program Files\Common Files\System\ADO\msado15.dll" no_namespace rename("EOF", "adoEOF") but when i compile ,there are "error C2011: 'LockTypeEnum' : 'enum' type redefinition". what should i change no_namespace into?

how can i deal with the problem?

i debug my program, and the exception (unhandled exception in gis.exe(MFCO42D.DLL):0xc0000005 access violation.) arised when the instruction(mapinfo.CreateDispatch("MapInfo.Application"))run. how can i deal with it?

i use vc6.0 to access data table in Access of MS, but the data table that i will access is built by the other program. i want to get the new data that program put into the table. because the program often put data into the table, i want to know when it change the table, and i want to get the new data that is put into table after the table is changed. Can Access of MS inform me?

After complete a componet ,how will I register a component? Is there the tool in VS6.0?

thank you, I get it. but why ? Is that vc's bug?