我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: ! _$ A* d1 H; }, yName = (WCHAR *) L"Poke"; + M2 P& T( M) n ' ~+ v; T7 S0 K
hr = m_pDisp->GetIDsOfNames (+ ^) d. l* t$ n& i9 t
IID_NULL, // reserved" D1 Q- r' H- k( e
&Name, // Array of names to get IDs for , \: ?+ f* a, j. X+ k 1, // # of names in the array* b* ]) v5 g- g4 t8 p
LOCALE_SYSTEM_DEFAULT, // System locale1 d4 h4 c" p! b3 B. ~2 M4 ~
&pokeID); // Array of IDs to fill on output/ c; V9 N* L- X) ~/ Z! S9 P
, g! P2 e) g" t) c" v; Z if (hr)# D4 d6 n. e) N F, a) C
{9 @- v4 Q+ m6 h" b
MessageBox ("Get Poke Unsuccessful");: b& t3 j6 E4 p: F6 V+ A3 n9 ]
return; * A( n" n4 }5 M" E' i6 d }3 z4 s- h' @- @9 ?( m; j
7 O/ B9 G* n; w+ M! V/**************************传递数据给extend**************************************/ # `8 e6 x: U$ W5 q* h. j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# T) w+ O. H! n! N* j
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valueStr = SysAllocString((WCHAR *) L"1232");( _' Q6 ~# ?/ j" i1 {* U j
VariantInit(&pokeVariant[0]); * W; T% u/ }/ a) e# ~6 C* V3 ~
pokeVariant[0].vt = VT_BSTR; " R/ u) R4 |7 }" c+ [ pokeVariant[0].bstrVal = valueStr;- t- q6 S$ u: w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 O {; f" a2 o4 k3 ~ VariantInit(&pokeVariant[1]); r' K$ t" D+ }1 M' m7 z# p pokeVariant[1].vt = VT_BSTR; # K2 k0 r0 x' M0 K' V* c pokeVariant[1].bstrVal = itemStr; ! d) S6 ^1 b1 t+ ~$ X S C1 R$ D' `! I8 l, R+ m
topicStr = SysAllocString((WCHAR *) L"system"); $ L$ ^ ~( G0 M( M. n3 d VariantInit(&pokeVariant[2]); 4 T; F* \! C* N% k+ B. K. `; }/ z pokeVariant[2].vt = VT_BSTR;9 y. J# _, l: Z7 a
pokeVariant[2].bstrVal = topicStr; ) ^* L! ~7 S7 S) @ * u; [6 m" j2 x& Y5 C0 ?, f// Set the DISPPARAMS structure that holds the variant. / e1 C7 ~/ W1 U; k* P- D/ M( U+ t6 Q) Y- k6 U# \
dp.rgvarg = pokeVariant; 5 G- M, _& f( `, _6 a: W0 I dp.cArgs = 3;0 D, L6 ]# D& z9 d
dp.rgdispidNamedArgs = NULL; : C$ y4 f1 e+ m6 Y2 ^* K% c dp.cNamedArgs = 0; 2 \2 X: O$ C. S" I+ i* N, o( T0 p, Z
// Call IDispatch::Invoke() , a3 x6 P1 [& m8 ~2 t& {# \. @0 u6 t3 g) y3 a9 ^
hr = m_pDisp->Invoke(+ Q4 d% q& U# [6 Z6 c6 c U- o8 G* z
pokeID, ; [9 U( ?: p! `0 j3 q" o' U IID_NULL, - F+ q6 _. \* k+ M" H0 N5 A6 O q LOCALE_SYSTEM_DEFAULT, ) P* [8 ?' L- P7 ]- s DISPATCH_METHOD,9 U# h0 O( J1 i% q* O
&dp,& }/ r2 ]" _% V5 {2 [$ q, ?
NULL,4 C; y0 N6 C4 y! s0 N
&ei, 2 d0 j/ Z# a) n: D &uiErr); 7 J) ]' L1 ~, q, w7 n2 b0 @+ X2 {0 ]$ f. t) E6 [ W+ z2 K. X
SysFreeString(topicStr);1 u7 ^9 C/ I! H y3 }) d5 D) f2 Z9 L
SysFreeString(itemStr); * [; B% \8 n7 k2 W4 E2 B SysFreeString(valueStr);8 K5 [) E, y" a2 A2 ~$ u& r
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现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 5 X( J0 y7 I! L c' {此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? : T* f: n8 @' a9 L / ]4 q1 i4 N) V* b. N9 q0 P! v0 r( n5 g* ?6 s9 w
2.这是request的程序 3 k% {9 x. j1 j4 E* R// Request a value from Extend 6 d! x+ ~) s( E4 H// 9 P6 O. K! {6 z! K% O// Initialize the variant that will hold the BSTR. Set the variant's0 c0 J1 J9 N% \
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 `+ |6 ]/ ? s. B: ^// BSTR into the variant structure. , R8 v. M4 r. U3 }9 k: j9 d * v6 K" V s; B, w) P1 K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 y; ] A4 }5 _8 B6 S* t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) W" F. f7 [$ a% z {, O
VariantInit(&requestVariant[0]); 2 B* y) Q% ?' }& q
requestVariant[0].vt = VT_BSTR;: i2 [3 j% c) i( a
requestVariant[0].bstrVal = itemStr; [# H0 [5 _; k8 W/ Q+ t) L8 V) N3 O1 |3 k n+ d2 G y; o) v
topicStr = SysAllocString((WCHAR *) L"system");6 O# V5 y" V }
VariantInit(&requestVariant[1]); / b' j. a: D. ~! C* { requestVariant[1].vt = VT_BSTR;- p* ~0 R" ^8 s# L6 g$ Z
requestVariant[1].bstrVal = topicStr; # ?0 Q2 Q v- ?* u . O. j! i4 T7 n; J// Set the DISPPARAMS structure that holds the variant. $ V* G9 K) q+ U9 B5 k( I' E1 h, V W8 x2 K8 w0 F! Z. V dp2.rgvarg = requestVariant; 6 x6 O9 F- V. E. S; _# m' Q dp2.cArgs = 2;! X% z: B: |/ }& R9 n7 P
dp2.rgdispidNamedArgs = NULL; % i G/ D, b3 s dp2.cNamedArgs = 0;' w- ^- I1 U0 E8 K
& r9 u8 |5 B+ I8 s( E/ c var.vt = VT_EMPTY;0 g! |7 V; n4 K6 k* k, f
; g3 I, R- v2 q/ f2 e4 f* a2 l* i$ D9 e+ `// Call IDispatch::Invoke() 1 @. q/ ~% Q8 E# N( g, N6 K# z4 ~6 W3 E- l
hr = m_pDisp->Invoke(5 F! q7 N' m4 }9 t$ ~
requestID, 4 f% n: _% o% n& j: W2 ~ IID_NULL, ! q, O7 B( }9 t" S/ c9 \/ ^ LOCALE_SYSTEM_DEFAULT, 5 W" d7 P6 D* {7 ]6 M' ~0 r$ M1 R2 C3 O DISPATCH_METHOD, - l, g e) H- t8 _ &dp2, . k. ^; K- ^1 O7 E &var,& s% N) R. o9 _. `$ M* k
&ei,0 S$ ?' l3 \+ A" E5 p2 | J* m
&uiErr); ' a* R, k' N. j 9 J% M4 m8 \* c/ r/ O% X SysFreeString(topicStr);: M) D9 \8 _9 X' ]9 K" \; o
SysFreeString(itemStr); ; f, f* k* ^: K: m1 p7 V& \- D Z T请问该程序是获得extend里面的哪个值?5 U: x; n0 K% f0 S
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????