NULL VARIANT 1

[Tdrgabi]

hi, how can i check if a variant has a NULL value (it doesnt have ==).

if its value is {VT_NULL} .....

 

[ArkM]

Test its public member vt on == VT_NULL...

 

[Tdrgabi]

thank you ... that works , i just didnt think of it.

just one more question .... does anybody know how to convert from a BSTRING to a LPTSTR?

i tryied wsprintf but it only returns the first letter of the BSTR.

 

[ArkM]

Use WideCharToMultiByte() to convert BSTR => ANSI (see MSDN via compiler help).
If you want Unicode use BSTR directly (BSTRs are null-terminated). Warning: BSTRs may contain zero chars.

if (WideCharToMultiByte(CP_ACP, 0, 
                        bszName, // BSTR
                        WC_SEPCHARS, // -1
                        lpszBuf, // ansi buffer
                        cchBuf,  // bufsize
                        NULL, NULL))