% X/ L. k5 `% m! G4 \: U# @5 b2 B( f
2.这是request的程序 8 w4 ?8 ^( e: ^: h// Request a value from Extend0 E+ B" a. l" i, c! o
// 1 z1 q9 v, l) ^: F// Initialize the variant that will hold the BSTR. Set the variant's 3 \0 j! C' S' i5 ~5 X* Y7 l// type flag to indicate the fact that this variant holds a BSTR. Place the - S1 {4 X: p0 y; C// BSTR into the variant structure.% E: [. ]( _2 B3 h# ?" k
( \- ]( B" M0 i; z0 O+ \2 t' X, V" [ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( E" u7 C5 n# H2 Z + U+ f' W( T: _5 I, p/ u- B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 W. `8 F7 P+ K4 ^ VariantInit(&requestVariant[0]); % {+ _4 \+ m2 }2 H/ @ requestVariant[0].vt = VT_BSTR; ) I( B) S3 q5 {3 ] requestVariant[0].bstrVal = itemStr;0 R+ n. P0 G% Y
* D6 \: I _8 }6 F/ w$ K topicStr = SysAllocString((WCHAR *) L"system"); 4 \6 C5 x+ O. `, A2 ]" q6 a; G9 x VariantInit(&requestVariant[1]); ' @% o- O W/ ] @% y7 e
requestVariant[1].vt = VT_BSTR; $ n3 W7 s$ D- V5 V& S requestVariant[1].bstrVal = topicStr;, N' {" U3 O9 \6 m
7 `1 {% a* H5 ^* f7 b; n$ E
// Set the DISPPARAMS structure that holds the variant. . c, {3 y# T, k0 V$ W2 ?: n1 e9 N: w! E9 u
dp2.rgvarg = requestVariant;7 y4 s) S# [8 d
dp2.cArgs = 2; 1 }( Y% Y# E5 B8 a+ q3 B9 k dp2.rgdispidNamedArgs = NULL; # d5 W* Z6 i- w# B& |$ h, I+ {$ n6 S+ G dp2.cNamedArgs = 0;$ |' ~5 n7 E: y
* }! i' U- M6 R: d! H
var.vt = VT_EMPTY; 8 x9 M* D4 n$ ]3 I: z/ \- g6 _) e5 t: C5 x
// Call IDispatch::Invoke() _9 y" C7 ]' d. i " }! t+ }6 |; I/ t hr = m_pDisp->Invoke( ; C3 x& u7 K# y4 X, T$ ? requestID, 9 p [3 ]: ~ f2 r8 w IID_NULL, 7 I% N5 ^9 t( \7 x! E2 P! n; [ LOCALE_SYSTEM_DEFAULT, ( A! a5 q5 R) u" A: }/ S DISPATCH_METHOD, ) E$ R% h' y% O3 y5 W6 F &dp2,1 d X) d* g- ~# N( _
&var, % Y* m# H5 Z. h7 `5 z &ei, , \5 k+ A7 X( g &uiErr);2 B6 N. _2 f" A% o" A
) ^% u" r% d: q SysFreeString(topicStr);4 v) T2 B" }' B! r
SysFreeString(itemStr);- h) Q" Y5 K: n- N- H* [- R
请问该程序是获得extend里面的哪个值?- Y; ~2 K. m8 U' ?( N
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????