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: - z- d2 o# l- ]' T6 mName = (WCHAR *) L"Poke"; & w, u+ C0 V5 e 5 v4 h, h! i# l# ^/ o2 @! A! y hr = m_pDisp->GetIDsOfNames ( ' j8 I. {, l* K: B9 H$ ?* m IID_NULL, // reserved # z1 N$ M4 W$ r- d0 F &Name, // Array of names to get IDs for 3 p. f3 b0 g% Y 1, // # of names in the array+ ?7 @" {. b) y3 }! D* O
LOCALE_SYSTEM_DEFAULT, // System locale ( ^7 m8 z: p; X A& U( O &pokeID); // Array of IDs to fill on output % b! G$ p+ f; V7 l/ \4 w) y( k " Z1 N1 K. L2 E8 w" t! {
if (hr) . _* ]! h0 R! f# d. A& r' E { / C, ^! l# G: c8 _: Z MessageBox ("Get Poke Unsuccessful");/ z" X, f# t, r2 _( `+ t( z$ `/ ?
return;/ B7 E4 |/ \$ `4 o
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/**************************传递数据给extend**************************************/+ v+ `4 t, P# `; W5 G: B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 w& |" L6 ?$ k9 c. |+ D 5 n4 Y1 ?8 D! A. m1 k( `# i: b
valueStr = SysAllocString((WCHAR *) L"1232");6 X( V6 [1 H( w1 g
VariantInit(&pokeVariant[0]); & y0 u3 R& F L$ A, B$ H% h pokeVariant[0].vt = VT_BSTR; 4 Y- d6 t1 D) s! v) O" _+ C pokeVariant[0].bstrVal = valueStr;$ f3 F# s' f4 a0 U7 m) u7 [% D# P! ]
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 ~; Y y% m+ [# o) `: J4 C
VariantInit(&pokeVariant[1]); 5 ^4 w! o8 k* V$ K) O6 q3 h pokeVariant[1].vt = VT_BSTR;/ _5 d$ k+ V# @+ ^6 B
pokeVariant[1].bstrVal = itemStr;6 J) z0 H! ?$ `1 i$ U! B
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topicStr = SysAllocString((WCHAR *) L"system"); Y* v+ @% i- ^* \: b0 m0 n
VariantInit(&pokeVariant[2]); 1 f6 ? q1 t+ a9 _5 d$ Z" ] pokeVariant[2].vt = VT_BSTR; * s5 [' w/ H0 ? pokeVariant[2].bstrVal = topicStr;! e2 t. P# Q' D7 b
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// Set the DISPPARAMS structure that holds the variant. 9 F* `! v! J* o$ r2 n4 O. C/ }6 \! Q6 h) u5 c' p; W5 ^
dp.rgvarg = pokeVariant;! G0 t% h& }( d1 n) G( o6 V# c3 i3 @
dp.cArgs = 3;( ^2 ^, ~/ `- s3 N# h
dp.rgdispidNamedArgs = NULL;; q' D) H6 h2 @ m
dp.cNamedArgs = 0;& a# r4 [7 z8 ^7 P
, ^! p! d8 k- G7 p' m// Call IDispatch::Invoke() 6 u# T0 P$ ~. y$ [1 I0 M 1 e V. A9 E) E4 b5 X% {1 b- t hr = m_pDisp->Invoke( - F& W* \3 c0 M9 g1 d; L0 J# c pokeID, 2 w, Q, N& t+ ^6 x IID_NULL,1 D: M1 o2 @8 A) \
LOCALE_SYSTEM_DEFAULT,# l0 F9 p: P0 M; t% X
DISPATCH_METHOD, * a. Y1 A% C* w# w, o! e &dp, " N: Y* Z: O# ^' y. G, O NULL, / j2 v9 I4 F0 w) K; U &ei,7 U. v# f- v& d3 D
&uiErr);# q9 t4 L* [0 r. M' E6 b
+ J \. N1 \. m! O* F SysFreeString(topicStr);; x+ l: ~ c( m! k. b# K* Y+ V# b
SysFreeString(itemStr);8 L+ x2 ^/ r+ _1 ^7 p, y8 Z# h, Z8 i
SysFreeString(valueStr); T) n/ w& f1 R( H0 S0 A
. e" s+ u$ b9 G3 K$ Q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???& Z4 J+ n$ B# m2 M
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???? 6 c0 t6 R( C4 I& r% l6 U% c1 T5 y) e' w* l
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2.这是request的程序( |3 K6 z4 X S; U. o! f C; Q
// Request a value from Extend" C$ S4 F1 @( A2 `/ K. L+ C7 B
// 3 i7 o' l9 }8 |5 ?// Initialize the variant that will hold the BSTR. Set the variant's4 v* n) n+ j( i) z; @; ^
// type flag to indicate the fact that this variant holds a BSTR. Place the # n. \1 x; u, c! v// BSTR into the variant structure. 3 P7 F. Z W$ r9 J8 F 8 K* C5 K2 D2 v" P3 T) U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 a1 |1 d: Z) `- C! f3 i2 t 4 U& R. m$ F* T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 d- S* a- u' I7 F w2 Q VariantInit(&requestVariant[0]); 1 [1 o2 s1 Q" U& s# v requestVariant[0].vt = VT_BSTR;9 H* A1 [ P! O) i) }
requestVariant[0].bstrVal = itemStr; 4 t& [; r& w7 K0 |0 U2 @& Y! A) r. v# x# R/ [ h
topicStr = SysAllocString((WCHAR *) L"system");0 I) ?9 R2 U- S4 `: _: E4 l8 G
VariantInit(&requestVariant[1]); , k3 @" `3 x& E* h. p2 O1 h( u
requestVariant[1].vt = VT_BSTR; , a( F% o# |+ |/ i6 Q8 p requestVariant[1].bstrVal = topicStr; 3 j0 M" H5 s y7 m& T# w8 c) D3 f1 _5 C. ~" ^% E. Y1 ~
// Set the DISPPARAMS structure that holds the variant.' y/ [) e2 p o$ ^ P( T4 O
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dp2.rgvarg = requestVariant; 9 m" Y5 D% d) s& _2 y6 e) t dp2.cArgs = 2;/ _) s6 I, W0 J& c
dp2.rgdispidNamedArgs = NULL; 8 f. l, g! @8 i" q3 H dp2.cNamedArgs = 0;, t6 z* V' H2 v) X0 Q0 w
5 k6 V: L' E& v. U! V5 `" \* b var.vt = VT_EMPTY; 6 b5 [) q8 {- M) C - b; l, a* K/ d# {# H// Call IDispatch::Invoke(). G4 E5 z( N/ e) e3 a; o
t `1 Y# ^9 Q- E6 E hr = m_pDisp->Invoke( ' q Q. d C2 x/ A7 N6 W7 y2 M requestID,- D! @! ?/ y' D9 x4 v
IID_NULL, $ Y, y7 k6 s/ p4 p n7 h% ], U% d LOCALE_SYSTEM_DEFAULT, . r& x: s7 Y2 o z' t9 L/ P DISPATCH_METHOD, " A1 M# Y6 P& y: g# g c: p &dp2,4 ?9 z. Y# @5 R3 {; }) ] S( F
&var, 0 ]% N+ I0 A* P q; d5 N/ N &ei, ) f2 P/ P0 b) r0 N# Q &uiErr); 2 O$ [) _1 U( K- ]# {$ g) P ( x, b! ?6 o3 y" M0 V$ Q SysFreeString(topicStr); + k9 C d5 ~( R5 |6 D. S SysFreeString(itemStr); 6 c: t4 v" i: M% S3 p0 s% A* n/ d请问该程序是获得extend里面的哪个值? ' C8 m5 o. X1 e r; z2 v. W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????