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:5 ^5 C6 r0 p' E+ D7 G6 @' p
Name = (WCHAR *) L"Poke";! R6 j$ ?, m7 C* d6 m1 w5 Q
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hr = m_pDisp->GetIDsOfNames ( 4 r4 @, p6 Y W! T IID_NULL, // reserved * O8 k# f. t- _/ y9 a &Name, // Array of names to get IDs for ) \" ^/ E1 r$ c# P \ 1, // # of names in the array ) w7 O# t0 f" O3 z A( v LOCALE_SYSTEM_DEFAULT, // System locale j. [! r( L+ v( u; s9 C% H$ c& ?
&pokeID); // Array of IDs to fill on output8 C4 Q& ]1 F t3 |
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if (hr)- b0 R i$ P# M. L
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MessageBox ("Get Poke Unsuccessful");. Y" s% B6 ~2 c/ G& }# F* C
return; / T1 o' y$ r! J+ U0 r% E- k% v. Q$ B } g! }3 n: ]9 S g/ Y; _* A- M/ [3 c2 I+ k6 J) h s/ Q" ~
/**************************传递数据给extend**************************************/- Z7 O5 Q6 B3 j. z3 A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! w Q2 M% E ~1 J+ O' U6 P
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valueStr = SysAllocString((WCHAR *) L"1232"); / d* _" {* q# u! F+ [* I- v: a VariantInit(&pokeVariant[0]); - @/ c7 v# ~' G S0 d7 u9 Y
pokeVariant[0].vt = VT_BSTR;- v W1 q9 `2 R' s4 L" v! G
pokeVariant[0].bstrVal = valueStr; ; \! C, F4 d+ p) g# F! _+ Z% E+ }; Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + _3 k) @) | \; } O+ V8 V VariantInit(&pokeVariant[1]); & }5 F& v/ n# P. f pokeVariant[1].vt = VT_BSTR;" [5 O M& Y% L4 z6 X
pokeVariant[1].bstrVal = itemStr; 1 w2 {! R2 k$ @( S9 G" v0 t5 v7 t/ O! o/ K
topicStr = SysAllocString((WCHAR *) L"system"); [# t3 k/ q# M' W. P: `
VariantInit(&pokeVariant[2]); ! m9 i' T+ ?* ~2 _
pokeVariant[2].vt = VT_BSTR;- ]+ I$ z- [1 r2 p
pokeVariant[2].bstrVal = topicStr;- z; B b& D1 h" f; v
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// Set the DISPPARAMS structure that holds the variant. $ r0 ~; b7 j% V$ H( `" z% j4 }6 @0 K+ ?
dp.rgvarg = pokeVariant; - A1 q* F; N% w; S* h: C& C dp.cArgs = 3;0 \0 u' F& y4 B5 C. U
dp.rgdispidNamedArgs = NULL;. I1 P9 n/ l! \$ {( z/ |( }
dp.cNamedArgs = 0;' e$ @5 ]6 C+ V6 t. J) B
( M9 U. X6 P, K8 ^: Q// Call IDispatch::Invoke() + \# ]. T. k0 P8 ^3 i0 | ' g1 {+ U6 ?7 @7 P: L hr = m_pDisp->Invoke( ' Z1 u! Q1 N2 Q! S* _1 H3 T& a pokeID,. d" g% c6 |% p( k7 Z
IID_NULL,8 G- s, A- R" k! s! U4 A8 ?& f7 e
LOCALE_SYSTEM_DEFAULT,- c2 X {$ x6 m0 N( u* p m) F
DISPATCH_METHOD, / f0 J6 t/ d- q8 f* _2 ^% F &dp, # i; K1 l" N( ^: X3 [7 e# h l NULL, / P" _# S# t# b# K* A* _* s) Z &ei, % t* J9 t c) u I" T &uiErr);$ v& [3 P7 p* v! M2 I& q7 e* V, M9 o( s
% P9 \( J6 E0 ]1 X2 ?7 [ SysFreeString(topicStr); 5 s$ P' Y. x, `! B SysFreeString(itemStr); 3 ~$ c; g( F8 \+ z9 J SysFreeString(valueStr);8 p' g m) {5 C
# `9 B* L1 a- @- v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???$ X) K# \% Q) t; b5 m! b# S& 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????& U8 N# B. I) z* n( B$ y( L
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2.这是request的程序. I( C- B' K' ^0 N W
// Request a value from Extend * Q; W$ c S3 w8 X6 P; K+ R//: y# B0 M' ?5 c( T T; P0 Q+ Q+ w z
// Initialize the variant that will hold the BSTR. Set the variant's2 ?6 u. O( p! S! x; ]% z
// type flag to indicate the fact that this variant holds a BSTR. Place the ' u3 g; x. i5 I. h// BSTR into the variant structure.1 q8 s/ c1 ^# Q( X$ y7 B
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 I5 r( f1 N# {+ @' c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( R. u1 a, q( n) M9 W4 g
VariantInit(&requestVariant[0]); % D" ~/ D% z( \5 q5 C5 ?( z% x" d0 _ requestVariant[0].vt = VT_BSTR;8 _* b" E o: _* }
requestVariant[0].bstrVal = itemStr;0 G! ]' K$ E6 l+ h& Z! e( k
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topicStr = SysAllocString((WCHAR *) L"system"); v9 T- X" ?9 s+ S
VariantInit(&requestVariant[1]); 9 M+ c1 s7 K. k$ i$ Y6 H requestVariant[1].vt = VT_BSTR; 5 q1 T% Z" m& l* j9 L m7 S requestVariant[1].bstrVal = topicStr;) z/ {2 W4 H0 M8 a3 U* c* x' L7 U. |1 k
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// Set the DISPPARAMS structure that holds the variant.9 [( G2 ]9 [$ ]. L
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dp2.rgvarg = requestVariant; 4 W5 r" ^/ h x; J dp2.cArgs = 2; 5 s; i/ a9 f) V' s& ? dp2.rgdispidNamedArgs = NULL;/ y, u) E$ H! M6 G+ v) v
dp2.cNamedArgs = 0;; l) e" Y& {" \+ u8 V! C
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var.vt = VT_EMPTY;! B: w. n* A9 d! A/ S
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// Call IDispatch::Invoke() 8 Z z9 P3 Z/ ?' b) @$ \! U2 q2 ~; |9 I5 m# i3 s2 ^
hr = m_pDisp->Invoke(# k7 V9 E# s' u) k% ]
requestID,# c5 N) G7 W: @
IID_NULL, 0 E6 ~' Q# J+ D I: ?0 O7 \ LOCALE_SYSTEM_DEFAULT, # M& G+ p, d- P% I, ?3 C% q DISPATCH_METHOD,8 G0 r, p. C# t1 V1 j. e- J3 A: [
&dp2,5 L; f9 E I; K5 A4 _3 x
&var, 5 g) ?0 w1 C( v E; e9 u &ei, ' x' J2 g/ T* f/ m" {4 `. ~ &uiErr);; R9 k' h; Y2 x. b5 r% E- g: d1 }& n
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SysFreeString(topicStr);, T0 T' p6 c: ~" s
SysFreeString(itemStr); ' k5 w8 R- j# \6 r' l/ r请问该程序是获得extend里面的哪个值? $ H; ]1 r# ^ ?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????