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:* P- K* M! u, {, f2 C
Name = (WCHAR *) L"Poke";! D, [5 c- Z" {9 q& v
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hr = m_pDisp->GetIDsOfNames (. {* {1 `7 P2 |4 P" l5 f
IID_NULL, // reserved) Q M( c" |5 T+ O9 A0 S) ^
&Name, // Array of names to get IDs for, o6 Y" L) I- _8 D
1, // # of names in the array& W2 ]" x6 q$ o- _9 k! u
LOCALE_SYSTEM_DEFAULT, // System locale , k7 R8 T6 l0 P0 k; `; @9 c, S1 I &pokeID); // Array of IDs to fill on output " Z1 K7 g" n6 E8 N* ?7 e. B 2 G" N" j- }- K7 J3 k
if (hr)* T1 s3 r# x# a4 J3 P. f
{ ) f! k A1 V) {3 A" c* K MessageBox ("Get Poke Unsuccessful"); " {# t* u- Q$ |5 ~' q3 W return; 4 ^8 w" X4 w' V/ l$ y6 A } . {; w4 c$ a: f k6 L- g% G5 i: b3 c % w2 A6 |; J, G1 G/**************************传递数据给extend**************************************/7 P1 m) Z. Z4 @. F6 m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & l. P# c. T- ]3 d9 ^$ s " s; p2 h4 L- D9 P+ {
valueStr = SysAllocString((WCHAR *) L"1232");8 l: I) _5 M- c7 {' n- @
VariantInit(&pokeVariant[0]); ' H3 |+ P( d, t: @) ~2 t
pokeVariant[0].vt = VT_BSTR; 4 S' o: h0 K2 b+ G; H. v z" k; t pokeVariant[0].bstrVal = valueStr; ! C4 Z5 S+ m, m% E& j6 P5 I/ R; p/ T& t l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ?7 g* D U# }9 s+ p0 T$ k# W2 s VariantInit(&pokeVariant[1]); . x9 c/ _, }+ F& ~3 o2 J2 S pokeVariant[1].vt = VT_BSTR;% J1 Q5 N [2 K, k* ~
pokeVariant[1].bstrVal = itemStr;; F+ S. E: Q: }, [
. I0 x# x6 t/ B2 Q5 J topicStr = SysAllocString((WCHAR *) L"system"); & o$ p9 U- L, D# e. H" G# D VariantInit(&pokeVariant[2]); ) U/ p4 A0 m- e. W9 W1 N pokeVariant[2].vt = VT_BSTR;5 y% n8 D; |- O
pokeVariant[2].bstrVal = topicStr; ' D3 E" \( ^; m2 S$ h2 W1 i1 }, n; [5 n% I6 X' r) ^
// Set the DISPPARAMS structure that holds the variant.6 @" n# G3 z" ] y/ I
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dp.rgvarg = pokeVariant; 3 `: L$ {0 b- ^" s* M, {; X, n! y8 q dp.cArgs = 3;4 N# |% O* H5 |* ]$ `
dp.rgdispidNamedArgs = NULL;/ H N/ w0 d9 H# |* B2 e" f
dp.cNamedArgs = 0; & s \ ]- G) }4 K$ {2 c% ]7 D" a 1 I1 }2 y- ^; R+ O// Call IDispatch::Invoke() ' g8 g" C) R% P6 Q , N) _$ ~1 z& o9 o, L hr = m_pDisp->Invoke( 2 K4 Y' P4 A* @! K pokeID, 0 T7 R9 x% y& k+ } IID_NULL,4 x3 V+ r* X# H1 U0 r: G
LOCALE_SYSTEM_DEFAULT, . X3 g. \8 S; l1 g1 [0 J" p DISPATCH_METHOD,/ R& x) r C2 d. e
&dp,- U6 a" \0 `5 V) W0 ~
NULL, # G% V; A& N" y1 r, v) K2 } &ei, $ ]4 K. R: n c9 d+ ^- m r+ W8 L &uiErr);! P) K Q; R7 A
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SysFreeString(topicStr); - k, y1 C, Q0 o& X: h SysFreeString(itemStr); % s# e0 j8 z1 h# f' l SysFreeString(valueStr);1 j4 Y' A2 T5 L; z" b8 ~" z
! W) a7 g L/ S+ B( ~% ?' M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??? , s: y( b# \! f2 G0 H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???? 0 B( G/ G3 W- [ 8 ] E. P4 k* {% R+ ` # K+ y! X7 B: f4 R2.这是request的程序5 u& K9 k" e1 M# R0 x, f! @6 t
// Request a value from Extend( P8 I/ x: J ?3 i. z$ C+ k* x
// : g7 J& D' l2 w. g- N! `// Initialize the variant that will hold the BSTR. Set the variant's y8 i% \4 g2 q// type flag to indicate the fact that this variant holds a BSTR. Place the# V$ R( h- q9 a2 z7 m- y1 Y
// BSTR into the variant structure.. e6 M6 U, p% |* K) E% L# T. y
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 F u* j7 [0 R6 W
. m+ m$ r3 M z4 Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) x# u' c7 q2 y+ w5 h% G% C
VariantInit(&requestVariant[0]); ) n9 `5 ^6 G) F4 i* Y
requestVariant[0].vt = VT_BSTR;: g- L( Z' U- f8 f* o
requestVariant[0].bstrVal = itemStr;9 `1 A0 D' @, y5 w& I3 ~
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topicStr = SysAllocString((WCHAR *) L"system"); ( V9 E& I$ s/ N1 c P0 x( e* A VariantInit(&requestVariant[1]); 3 v. x% U, X! u9 [
requestVariant[1].vt = VT_BSTR; ! N9 c' v( h, `" D) k7 K! n requestVariant[1].bstrVal = topicStr;/ U4 L1 w+ y& O* W5 C3 }
* Y8 C+ U0 T; l. B// Set the DISPPARAMS structure that holds the variant. $ f; T9 ], L* y. A; o# o$ \' l4 V/ @3 U8 I7 Q4 k4 }% z
dp2.rgvarg = requestVariant;7 N- w9 w, k0 E
dp2.cArgs = 2; : t5 `( o0 _! s dp2.rgdispidNamedArgs = NULL;$ R9 z. O* H3 b; b( Y6 O- u
dp2.cNamedArgs = 0;: [ O$ x, p- U v) }9 f
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var.vt = VT_EMPTY; ! u1 M- x; m q7 |! o$ }6 Z2 j D/ Q9 B& |# \' Z5 F. p" w// Call IDispatch::Invoke()) R$ B4 Q* _$ X' C, s* M
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hr = m_pDisp->Invoke(+ H. Z- G& m h4 a/ U! j- v' g' U" r
requestID,% C3 r4 }( m# m; W- Q
IID_NULL, ^8 y# D" z7 A/ }% y9 N2 z LOCALE_SYSTEM_DEFAULT, u; Q3 ^: u, }0 u" O7 ~ DISPATCH_METHOD, ! X4 u2 q1 u* d4 G; e8 m7 _) x2 g( |/ h &dp2,0 B @* k' B3 K" A! c$ |. X
&var, ( m% P7 \, L4 d; S) @% a2 _ &ei, 0 a0 K! M" z( [3 d2 } &uiErr);, q V# g1 }+ o
3 m9 F) L. A! \+ x# G. H0 k SysFreeString(topicStr);" j+ `, J) h0 n& }
SysFreeString(itemStr); 7 e6 S( p# X& _. z请问该程序是获得extend里面的哪个值?! B% \8 P# f; i2 M- 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????