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: k; e7 \' ?' L0 cName = (WCHAR *) L"Poke";& K" j% |2 Y2 u7 P
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hr = m_pDisp->GetIDsOfNames ( " i& X+ X3 O/ Y! T IID_NULL, // reserved ( j! M9 w! C( V, ^# i& v$ G &Name, // Array of names to get IDs for 3 V3 X) X% `( f- i 1, // # of names in the array ; z" T2 @& s0 ~: S LOCALE_SYSTEM_DEFAULT, // System locale: k" p& A# C P6 P
&pokeID); // Array of IDs to fill on output: S$ E" U: [5 l5 e% V7 e5 @) Z3 G+ K
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if (hr)+ x) t" f" H2 T; G r2 y8 E! ^
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MessageBox ("Get Poke Unsuccessful");; |# Z$ K! M- i1 H
return; - R! P% D2 A% [% a/ T' e5 k } , Z. }9 [4 o; C! N/ m( |- ?, a' i- }7 @3 T( l$ U! h+ a
/**************************传递数据给extend**************************************/" t/ V6 O: k$ `6 E8 |0 _. b+ m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; t" H7 D7 H+ w# k6 {
+ {7 ^3 N& s6 h7 `) O+ h valueStr = SysAllocString((WCHAR *) L"1232"); / J9 D& u9 F# C4 d* v) A+ y VariantInit(&pokeVariant[0]); ]* C2 l* E4 C
pokeVariant[0].vt = VT_BSTR; # `+ \9 k. Y8 s8 ^/ ~ pokeVariant[0].bstrVal = valueStr; & U0 a6 p) B3 u8 U7 m& W$ G6 p/ l/ h, h b& H& W' `9 `' ?/ N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 z" }7 }+ b0 d S% \8 w1 {. U VariantInit(&pokeVariant[1]); - ]- I2 U; n. h( [2 o* x/ j# l
pokeVariant[1].vt = VT_BSTR; 0 C; ]6 B$ |, O1 x7 } pokeVariant[1].bstrVal = itemStr;' p5 ?" M# x) y i% E$ S
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topicStr = SysAllocString((WCHAR *) L"system");) }9 v' \2 f4 y3 }, C5 v% n
VariantInit(&pokeVariant[2]); # u$ G. y/ g( o7 C6 h pokeVariant[2].vt = VT_BSTR;) @# f% f* z, i+ t7 b+ c$ b0 @
pokeVariant[2].bstrVal = topicStr;; _& b8 Z4 ]3 ~
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// Set the DISPPARAMS structure that holds the variant.8 F3 X2 L) V! c1 |7 p! k
1 Z/ B: W: {' ?. L dp.rgvarg = pokeVariant; f/ w" p. X. j* R! N; e dp.cArgs = 3;& B) X3 _+ O& |' W) H
dp.rgdispidNamedArgs = NULL; 1 Y( `: i. i' q! w dp.cNamedArgs = 0; 6 `; @6 Q) H6 Z0 @- z " G. B o$ C4 u$ ?- y// Call IDispatch::Invoke(); ?$ J1 F# n( ]# p* z$ Y
$ H6 y: X" D, C$ q6 V$ ~; o hr = m_pDisp->Invoke( 6 r" z2 S/ d- r# ^# | pokeID,5 r3 G+ E: M w; u8 @( d: k
IID_NULL,& N) u: v* K% A/ A G
LOCALE_SYSTEM_DEFAULT,2 o' o. B% d6 D( z6 t8 t& F4 b# x: N' G" p
DISPATCH_METHOD,6 Q) S; A4 H2 ]7 W6 I
&dp, , V0 J; r5 k0 r1 Q NULL,* W) N3 V7 L8 o% I* a3 j
&ei,$ [1 f/ [' ~5 l( K2 Y
&uiErr); , w2 Q7 I0 A; `# m! x, \3 Y% C # L. ~% P/ i J, J8 p( ]0 X SysFreeString(topicStr);1 V2 e8 }3 M4 i6 ~8 Z5 u
SysFreeString(itemStr); - x* Y# U& F7 R( C/ G# | SysFreeString(valueStr); 9 P1 @9 _* t D/ w c1 a' A/ W7 y1 J" ?8 s9 {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???+ D% U9 c, u1 V. Y
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???? ; c7 F2 j9 C7 g; ^8 k; Q, {4 b3 y' `
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2.这是request的程序 v w+ }- e4 r# L" b) K' ]1 g// Request a value from Extend 5 b8 D) m7 u D; }6 P1 R//# _8 C) { b4 n5 }7 i# K) M
// Initialize the variant that will hold the BSTR. Set the variant's 1 Y' ?% O1 t) T6 U6 T// type flag to indicate the fact that this variant holds a BSTR. Place the- `3 p C) _% a# @4 U5 c
// BSTR into the variant structure.2 b0 t/ ]$ w5 V& W, j- N3 C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( g! D' t0 o* S/ n8 ^+ B k
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" @9 H. K5 e/ U; `* S) X( a
VariantInit(&requestVariant[0]); : N% |- o: [+ T& o
requestVariant[0].vt = VT_BSTR;) H$ x1 o5 H5 j) d
requestVariant[0].bstrVal = itemStr;+ i5 u' w: p5 B+ ~) w
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topicStr = SysAllocString((WCHAR *) L"system"); 1 L1 g: {9 n- \" e* ^3 e VariantInit(&requestVariant[1]); ' y6 {$ m2 J1 e" [
requestVariant[1].vt = VT_BSTR;) Z# q4 u3 J: u. C2 ^
requestVariant[1].bstrVal = topicStr;. S4 u5 ?& s1 W1 [
5 F7 G- A; E/ g L5 c// Set the DISPPARAMS structure that holds the variant.7 B' G4 J/ N. l; B& m5 T9 j; W/ q+ t
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dp2.rgvarg = requestVariant;, j+ C9 x9 v R; I7 v8 ?5 M7 r5 R
dp2.cArgs = 2; 4 H. o C- l. I; f( H$ n; G dp2.rgdispidNamedArgs = NULL;! p0 B9 j* X8 ]' x( ~' l; s
dp2.cNamedArgs = 0;. P) U$ F6 Y0 J9 l% y( S
2 M2 n( L* v8 i var.vt = VT_EMPTY; 0 b1 r% |* @+ w, l, h& \7 F( f* {% ^* ?& P
// Call IDispatch::Invoke() 0 @: n$ P Q4 d/ p) H, Q( I2 @ 4 J6 d/ P9 m" E" D9 z hr = m_pDisp->Invoke($ X. Q( |; q: k- e$ t' q" d
requestID, C( y2 d, {# p) s$ |1 Y2 p IID_NULL, E* A! o& q& U3 x% F LOCALE_SYSTEM_DEFAULT, & b: ^/ u- o$ M: U3 S DISPATCH_METHOD, ) z/ W- M1 h+ a9 Z &dp2,: M( k6 W% K* e, m& c; y
&var,7 h" d$ F* b% g9 O, L' f0 b
&ei,2 k) J( t/ e3 M9 C. i Y$ V B: O
&uiErr); + G( d) }2 L0 y. k2 L* W. ?6 J4 q5 z! J; O3 M& Q0 Z. r
SysFreeString(topicStr); ( t1 f; c3 v4 i# W SysFreeString(itemStr); + `# r( B) X* Y2 u, ?请问该程序是获得extend里面的哪个值? 2 ~& U, L/ _+ {* V# M' ]( W m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????