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: ; \7 {6 K, T% ] k+ ^) C2 J6 DName = (WCHAR *) L"Poke"; - w5 O* x+ u! Z* d8 A0 C4 N9 L; E 6 Q: E$ q- f* C: \
hr = m_pDisp->GetIDsOfNames (, Z" D- A2 j4 v$ r9 Z
IID_NULL, // reserved! ^2 h8 D# p& J- `
&Name, // Array of names to get IDs for. y: ] g) `# r4 _
1, // # of names in the array i v# \! ?" m5 @: c* a/ G- P6 X LOCALE_SYSTEM_DEFAULT, // System locale 5 Z% y3 N' y; e- N3 g &pokeID); // Array of IDs to fill on output 7 ]/ R h- d+ s8 p. c + s. ]9 _* R. ]1 O1 l if (hr): e$ P$ m- A6 ^2 L8 A
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MessageBox ("Get Poke Unsuccessful");) u# L2 ?: v) E" y
return; ; ?! Z3 A9 @4 ]( F }( W0 F' M3 F3 A7 B, A, m
. @, i) W2 [- @6 S! B h# t; t* o/**************************传递数据给extend**************************************// q( n5 W! x- n5 h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 @' w7 b+ {0 M
( B9 s& u6 W% c/ y* y valueStr = SysAllocString((WCHAR *) L"1232"); - w/ Q4 ~: X3 @# B8 @1 o VariantInit(&pokeVariant[0]); & x& @: z8 t3 y7 C: d: D$ u
pokeVariant[0].vt = VT_BSTR;+ m2 s8 ?- O" o/ G& E
pokeVariant[0].bstrVal = valueStr; ' l3 p7 Q# [2 ^6 o5 o2 o4 P9 G3 i u ! w6 v$ F4 U7 i; E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' V8 m8 G) b b X VariantInit(&pokeVariant[1]); 0 Y$ S: M1 M; I' M. y pokeVariant[1].vt = VT_BSTR; ( {" n& a+ ?8 w! ] n5 Z: U pokeVariant[1].bstrVal = itemStr; , d& O D' w8 c+ P* y4 H* @1 j - ~& s. K5 S: h& A2 _" ~, o! q6 W topicStr = SysAllocString((WCHAR *) L"system");; ^( ~$ o( b# f$ F2 @* j6 j7 [
VariantInit(&pokeVariant[2]); # E6 z7 k k2 `& _0 w7 u pokeVariant[2].vt = VT_BSTR;) S- G% @" z. F2 n- B H3 F- C/ [
pokeVariant[2].bstrVal = topicStr; 8 X; J5 U2 w) x- ?8 n 1 b7 E8 @8 N% r2 q3 `) g) ^// Set the DISPPARAMS structure that holds the variant.2 L) Q7 ~! y' ]5 A8 P V
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dp.rgvarg = pokeVariant; , S% z" E6 D1 p% X5 ~. r0 n dp.cArgs = 3;3 ~; k; t% r5 o" ?6 {, m3 q
dp.rgdispidNamedArgs = NULL;- ~* J: s& F: G9 _- P2 n
dp.cNamedArgs = 0;$ t' C2 o* @: l/ [; d( }
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// Call IDispatch::Invoke() 7 s% ]* J) g/ M' Q! u3 T- ^1 M) p* T2 X! {: h4 i; t9 F
hr = m_pDisp->Invoke( : d( Q9 O. L9 B' B pokeID, / J7 E( v& n' j2 ]$ ` IID_NULL,1 }/ _/ I. j; p3 p
LOCALE_SYSTEM_DEFAULT, 7 d% X( C9 k; ?" }$ d, u, x9 a2 q$ k DISPATCH_METHOD,, `% w& D% q8 c% q" {
&dp, / o0 g8 ^/ p, |0 Y! k6 B' o NULL,, A" t4 P# m6 }" z/ r
&ei, ' w+ R$ w+ Y$ @: R# g2 q &uiErr);$ e- p2 g( |' U& @% c+ ?; c q- a
0 p0 A) A2 X) d3 T SysFreeString(topicStr); 4 ^4 r( I W' r' d. W0 g SysFreeString(itemStr); / T5 [! |3 L" Q SysFreeString(valueStr); 1 [9 v" r6 P! s) q ; s+ V# G' w9 m( j4 b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???1 ?. O; D0 b+ o
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???? & A" L0 p1 X! ]7 ]4 G6 v& a / Z' ?8 r3 A2 A0 e' y/ C k ) t/ C% L" c1 P. F' ^ N2.这是request的程序 - j8 B5 f9 \2 H0 I% c// Request a value from Extend ; Z/ Z L4 U0 u3 _6 X// 3 O) o* N$ G( }' a+ Z// Initialize the variant that will hold the BSTR. Set the variant's : K: A! U5 q. b, h1 Y B// type flag to indicate the fact that this variant holds a BSTR. Place the$ Q, k. Z5 m. }3 y. K
// BSTR into the variant structure.7 n+ z5 e( f1 P5 B5 E4 y4 V
# [8 e* C" x5 F& X. G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 j! _' j9 p; A3 E" N
) `2 F4 a; l. q* C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- |3 V# Q, x+ j
VariantInit(&requestVariant[0]); 6 l5 S" N8 {3 e7 ` requestVariant[0].vt = VT_BSTR;4 M# F. v3 W# ~4 Q/ Z$ {
requestVariant[0].bstrVal = itemStr; 0 n4 @" n# `* `' ` w: c" x O
topicStr = SysAllocString((WCHAR *) L"system"); 3 C' H v. Z: _9 e7 J VariantInit(&requestVariant[1]); $ A$ R! L$ r9 f( ?8 p
requestVariant[1].vt = VT_BSTR; & B8 S6 U$ Q: w A requestVariant[1].bstrVal = topicStr; ; T$ c. I/ D8 F/ j* F( D9 I( d( n8 Z7 I _
// Set the DISPPARAMS structure that holds the variant.$ Y( N' ?5 S h/ h* j
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dp2.rgvarg = requestVariant;" {% f$ x0 U* w
dp2.cArgs = 2;* a% M6 m* N, D6 m
dp2.rgdispidNamedArgs = NULL;$ t) M. f4 S; {+ p. z! u" d c" G
dp2.cNamedArgs = 0; 8 |& x/ I5 S- |$ Y- G5 R( z( O $ k2 U7 H$ g z- H var.vt = VT_EMPTY;! H: o* [3 n4 [; \. s+ r2 n1 e! L3 a
7 g* ^! X: _1 A/ r: C// Call IDispatch::Invoke() $ Z, h# D5 X9 O% z* ~4 n; T q1 D# p; Y; a$ J% j/ t
hr = m_pDisp->Invoke( : `' D* k1 \9 J requestID, 4 n; m2 n4 l1 w" ^% ?4 z2 S" j IID_NULL,# V/ w, F0 L' o+ H2 z
LOCALE_SYSTEM_DEFAULT, % Y( L' r# i8 m# n DISPATCH_METHOD, $ m+ F$ Z( I5 g2 |4 S4 c# t &dp2, " v' V. z. a! j &var,. u2 C: G! X) n% N% @; \
&ei, 4 L0 x/ R3 g) u( m &uiErr);4 g/ V" ~& G7 ]
0 B0 s* g& t' y9 I SysFreeString(topicStr);, c5 \8 e: G6 j
SysFreeString(itemStr); B1 S: p! S1 \; C, z! |! C M% S
请问该程序是获得extend里面的哪个值? 7 t) f1 Q2 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????