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: - S$ n+ X4 c0 }& t. zName = (WCHAR *) L"Poke"; 2 t% R7 w: z6 P8 r% T- X 7 j3 M! f$ g% c& J: c hr = m_pDisp->GetIDsOfNames ( ; B5 S0 R5 @3 V4 i8 d- {. h7 ? IID_NULL, // reserved 1 z1 U/ ^8 x/ }+ H m7 T; I &Name, // Array of names to get IDs for0 U, h9 B" ?, E( N6 l
1, // # of names in the array& d8 R y" m9 C @( K( E+ ?6 Z
LOCALE_SYSTEM_DEFAULT, // System locale # V2 V$ w6 ~2 U% ? &pokeID); // Array of IDs to fill on output 0 C# T$ u% R7 F0 X9 z : \. S) A3 g& ]2 e& y if (hr) ( \ q& N6 N/ `/ S { ; b" W, n- ]% w/ I- X$ m& A" @ MessageBox ("Get Poke Unsuccessful");. ]1 w6 u+ I0 k' K+ }- W
return; 7 A% b( V4 _1 ~ } 1 f3 D* _( |" m4 A/ C* r- W s! t. G8 X# J
/**************************传递数据给extend**************************************/# N5 o9 E" O2 o! g& l, Z; u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / W+ r" n/ K/ \ ( i- G# N* T$ h7 ~) _7 I valueStr = SysAllocString((WCHAR *) L"1232");1 }, q H- k5 D, b+ _! _5 p4 V
VariantInit(&pokeVariant[0]); , E. C: j: v- `/ k) r) d( i% Y8 H
pokeVariant[0].vt = VT_BSTR;; w) A" P: _' E; C$ {" y U
pokeVariant[0].bstrVal = valueStr; # X& ]. X1 l1 y8 z. [8 x( i5 Y5 ?1 L7 o) S7 L- H3 w0 @9 t7 J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; M) Y* L5 ~% {3 ?; ^, Y1 V) J
VariantInit(&pokeVariant[1]); ! z C. b5 {( F
pokeVariant[1].vt = VT_BSTR; + T- A% y. x# ^+ d0 {# s: h3 B pokeVariant[1].bstrVal = itemStr;4 K( y+ W1 N& @
' x' M; P ?( ^ topicStr = SysAllocString((WCHAR *) L"system"); . {: w% L6 T! e( ?% H& y( Y; b' J VariantInit(&pokeVariant[2]); , P9 p/ O0 d& v* y+ C0 j) _ pokeVariant[2].vt = VT_BSTR; " e- d( ]; F8 K4 c( M pokeVariant[2].bstrVal = topicStr;& T, q, b- ~: u3 G, {5 y8 R
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// Set the DISPPARAMS structure that holds the variant.3 b' Z1 e) R4 ^* |- G
3 w* }+ g) q* K5 J5 | dp.rgvarg = pokeVariant; + V9 E g; r( V' X" c# h dp.cArgs = 3;4 t a# D1 h, Z' g
dp.rgdispidNamedArgs = NULL;0 B' _; J' ^3 Y* E0 I
dp.cNamedArgs = 0; . o& u1 Y. A$ b2 j$ g 4 }( v2 w V+ l2 t/ [5 ~// Call IDispatch::Invoke()2 ^! r8 p7 O3 ?: \, }
9 q# `/ I2 `; I2 k8 I; W) E1 U: J, }9 Y hr = m_pDisp->Invoke(/ Y! k. _3 F6 a/ X7 b
pokeID, % d3 R3 |) |& h) k7 N: q IID_NULL, 6 P- W- m8 F$ |; J LOCALE_SYSTEM_DEFAULT," C, b* L' ~. |2 X' u! }( T
DISPATCH_METHOD," x6 r; m) G) V5 G% h6 @7 ]% a2 R
&dp, 3 s$ s1 X7 n% R9 f5 q NULL, / o; Y: ]* L \' ~3 y3 S8 X- [ &ei, ( ]/ e2 N( j& l &uiErr); u2 O, A* ?. }; K* o! k
# a/ o0 j5 B( n. V- T: h0 R( n SysFreeString(topicStr);7 q2 `3 m" R3 ~& L( Z
SysFreeString(itemStr); & _, x% R( k: E SysFreeString(valueStr);9 P) V1 g5 @" q8 p
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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???, t3 ?0 z1 F l1 L2 M* [$ {. A
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????2 H8 V! m! X. o
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2.这是request的程序' J/ A6 F, Z* p8 `1 Y1 v) e3 a
// Request a value from Extend; A/ m' K1 j* S K C
//* z# E( V1 @% O
// Initialize the variant that will hold the BSTR. Set the variant's - q2 y. b. c7 G9 b// type flag to indicate the fact that this variant holds a BSTR. Place the 4 w/ Z1 S& k! N0 B// BSTR into the variant structure.) \' q5 Y7 L4 A
& b f0 X2 d: W1 m) o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' a" z5 j, K- U- I5 C/ F3 u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , |$ h: X9 a5 U( u- j- Z4 y VariantInit(&requestVariant[0]); 1 @; B, ^" j' p9 x* C# i$ H: E- y9 e requestVariant[0].vt = VT_BSTR; : }- F- N* s( U: s; y requestVariant[0].bstrVal = itemStr;7 D3 e0 n( B8 g1 h& {9 \
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topicStr = SysAllocString((WCHAR *) L"system");& s R; N4 W1 F7 [6 S( \9 L P
VariantInit(&requestVariant[1]); / X" G- J9 [; h
requestVariant[1].vt = VT_BSTR; m; A+ ?; z! C. A! G# c/ u1 I3 h* X
requestVariant[1].bstrVal = topicStr;+ @" E4 }6 f: g
4 O9 Q4 c5 X' M6 X! M// Set the DISPPARAMS structure that holds the variant.9 R* _' \7 v% H4 h
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dp2.rgvarg = requestVariant; 9 m, [) b. q \# \1 Q dp2.cArgs = 2;4 m# G! I2 b7 X/ K. c
dp2.rgdispidNamedArgs = NULL;% b# S8 q9 W$ f" E
dp2.cNamedArgs = 0;7 E( Y5 z3 Q! D% ^# H3 K( d# h& L% w
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var.vt = VT_EMPTY; ) _; q" }9 N, c) m" N! w" F) U ! H7 v% B; x% N5 N; |1 @// Call IDispatch::Invoke()* E) n& i d5 m8 [$ S+ p# `' D- G/ _
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hr = m_pDisp->Invoke(" d! q2 S, k8 X1 t' i
requestID," y4 W2 a0 M C( z" B; U0 x
IID_NULL,* a) N9 m! E2 O
LOCALE_SYSTEM_DEFAULT, 0 J4 z5 d* x6 N DISPATCH_METHOD,* j6 z; f" H+ c' s6 S# V3 a3 u' N
&dp2, 5 z- z: n6 l) s6 X1 _ &var,/ m' U# a7 [" m# A! h
&ei,0 E; N# I1 j# e- l
&uiErr); 2 S, H0 j1 v g- D9 G" W2 W$ z5 R/ l6 c/ O8 E* ~% ^
SysFreeString(topicStr); 5 A9 U- o# R3 Q; G/ x3 f SysFreeString(itemStr);1 y+ u- w8 _ g: X6 T. \4 B0 F2 L
请问该程序是获得extend里面的哪个值?+ G, M+ Z- H; b. q' Y X
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????