: I V5 ~& A+ L' F5 ?' j/ M$ w3 E
2.这是request的程序 , w8 n3 c; {+ V// Request a value from Extend6 [# b' g1 ]4 S/ q& Z
//* v. U( {( A% R) I6 z4 l- K
// Initialize the variant that will hold the BSTR. Set the variant's " `+ }( W/ \% L" ]// type flag to indicate the fact that this variant holds a BSTR. Place the ( S/ q; P0 V% T. e- v1 f/ @// BSTR into the variant structure.: c, B# v# \0 X8 W
: \) p. h" S( U, b; i! X/ l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) C" T4 V1 R9 m7 S) d
B8 ~2 T7 k9 j3 \+ L4 M Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ T/ O( B1 ]2 u9 b+ A0 q
VariantInit(&requestVariant[0]); 2 N( l5 k4 j0 ~. r e$ r& Z, \2 T
requestVariant[0].vt = VT_BSTR;& q9 f2 c, V/ |; I/ c
requestVariant[0].bstrVal = itemStr; - E" U+ s% q5 h% ~$ y, L3 f# g 6 k$ ]+ \5 T0 g9 x2 V2 l topicStr = SysAllocString((WCHAR *) L"system"); 4 |- C0 s$ y$ Z VariantInit(&requestVariant[1]); ! q4 B) f4 p8 L4 W* e$ Z
requestVariant[1].vt = VT_BSTR; , u% F3 n" R# d& x! U; Q, ` requestVariant[1].bstrVal = topicStr; + ]4 `* R- J, x( z; O: X- i+ F' J( S. C+ m/ V" a
// Set the DISPPARAMS structure that holds the variant. 8 K3 [- W2 j; |# y; M* v3 ~# _8 m! F1 k" V& ~# T: D
dp2.rgvarg = requestVariant;% o3 w% R- }! r+ E. k. |& G* B( ?
dp2.cArgs = 2; 9 K, u$ U) A5 s( y6 A dp2.rgdispidNamedArgs = NULL;8 y1 R6 m) o# _) `8 z+ @" T
dp2.cNamedArgs = 0; ' \. T x5 @! n2 Z7 _; C" A/ C- X& F! T# J: k# d2 \/ O/ E
var.vt = VT_EMPTY; P3 L: |5 F* Z8 T* H- d& s4 W) a' C
// Call IDispatch::Invoke(). [4 \1 a+ u5 o2 s+ _
# A4 y$ b) ]% G( o0 P0 b hr = m_pDisp->Invoke( 3 M( j' T1 A1 A8 J* S requestID, , }9 r8 T# I$ [9 h IID_NULL,! V0 D8 Z% c& N; t" w+ M
LOCALE_SYSTEM_DEFAULT, 2 ?# ]/ ~+ V8 y: b* ^9 e! U0 ?2 b( ?& x DISPATCH_METHOD, 5 I% r1 g# l- y1 H! h &dp2,# b: M1 B+ {$ l6 B
&var, : {. u9 r! I6 V7 l4 V &ei, ' H8 P* T& [* l: a0 R ] &uiErr); & B+ q+ ?0 s8 P+ m$ O3 `8 i8 K1 T* N1 e0 A% G( y
SysFreeString(topicStr);% Y l0 B% _9 @3 L: ~9 t, x5 {
SysFreeString(itemStr);. U6 u- o( \& n7 Y8 ?
请问该程序是获得extend里面的哪个值?+ y. ]8 _: ^% m( p* b
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????