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) w& L+ m) f3 X& [( y
Name = (WCHAR *) L"Poke"; / `: g. r8 p2 \, X6 s$ a: D1 } # F2 X$ l5 O8 u- L% x w. n( N
hr = m_pDisp->GetIDsOfNames (# s. x6 ^ K" A" z/ U, _
IID_NULL, // reserved2 k; ?8 f$ e% C- f3 `8 x1 G, B8 q, I
&Name, // Array of names to get IDs for/ v( P7 ~8 V8 Q
1, // # of names in the array 7 N+ }$ Y, ?1 S+ Y3 G) p LOCALE_SYSTEM_DEFAULT, // System locale5 B0 k& U s) j/ N' M5 W4 M7 O
&pokeID); // Array of IDs to fill on output % N$ |" @8 v: O - F4 p+ [! }5 v& L* p1 H% G7 Y) Z if (hr): K/ D" N* n) L2 t; h
{ 5 n8 b# L0 m: D3 @) G* k2 C MessageBox ("Get Poke Unsuccessful"); 4 B; h2 b1 U* k) Z4 t: y' ]( {( m return; 8 X/ \5 I) \# J! q; M, G } 0 s) C$ T) g9 a* ?6 O2 p. \6 n) }8 ?, Q6 B: g3 P1 p! ]1 Z
/**************************传递数据给extend**************************************/ 8 g# F/ o u2 I# J3 P6 l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 Q2 R1 ~/ v" E1 \% I 0 N7 u' B. O8 { valueStr = SysAllocString((WCHAR *) L"1232");; T5 ~& r9 C( s1 R2 B
VariantInit(&pokeVariant[0]); ) _6 a+ g: \, F7 B: P# r: y pokeVariant[0].vt = VT_BSTR; 2 Q$ _* j$ n- f+ F5 d pokeVariant[0].bstrVal = valueStr; 9 |# G7 B! `5 U/ }2 T% h" N 0 ~: T4 E# m. }, m/ Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& K9 b; W& X- f {' M. x
VariantInit(&pokeVariant[1]); , `1 j* d, A$ r( k" B pokeVariant[1].vt = VT_BSTR;, }, D3 H4 d0 M. H* P3 `, B
pokeVariant[1].bstrVal = itemStr;- j! J4 w1 N5 J- w( W
) f* E* {1 ^/ W& H topicStr = SysAllocString((WCHAR *) L"system"); 4 p7 b% b0 {4 _# l0 T VariantInit(&pokeVariant[2]); 7 O& _" }6 [, E
pokeVariant[2].vt = VT_BSTR; / P5 j3 E" N @+ }$ e pokeVariant[2].bstrVal = topicStr; ! _7 I9 V. l! h ' b+ c: _" `+ s# }// Set the DISPPARAMS structure that holds the variant. ; o) `4 r I; i- ~. n ' ?" A. o: v3 ^: V V0 t dp.rgvarg = pokeVariant; ) N" _! Y- ?1 i. M% R+ @7 }3 K) l m0 M dp.cArgs = 3;& c3 ?3 e' ?; c4 |1 l( H d
dp.rgdispidNamedArgs = NULL;4 I0 ~/ R4 w4 F$ A
dp.cNamedArgs = 0; 8 d3 r/ @/ z1 l/ D+ T: P ; h$ L, c" v* F, ~: W, o! ~// Call IDispatch::Invoke()* ]* l. [0 W" e5 a% v
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hr = m_pDisp->Invoke( 6 f8 {& t5 U& k" a k7 H& Q" Y pokeID,! F4 j4 \; S, i
IID_NULL,. o1 F W/ C( X8 a! \6 [# f
LOCALE_SYSTEM_DEFAULT, * _! e ~1 u/ \ DISPATCH_METHOD, 9 e0 s' q% m0 k6 _3 d4 V &dp,0 w. Y% `/ u7 g6 J! e0 Y0 ~
NULL,# [* x7 A. T" m7 {7 q4 B& g3 C3 G) d
&ei, + B O& ~: U% _5 D &uiErr);; q S5 W$ N. ]% R
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SysFreeString(topicStr);& M0 _$ G1 V: [; J; [
SysFreeString(itemStr); / A* ]1 e( v. @ SysFreeString(valueStr);0 u1 b$ y0 _3 w# S. w
+ Z1 ?' `7 Q# G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+ l7 M5 [) a. r1 e# ]3 y! i
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 S' n4 c: g5 f' w: U9 M: e, c; C! H3 O& _1 c. ?- g
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2.这是request的程序) d8 ?' H" f# t5 q
// Request a value from Extend + B H1 O! k( m9 x) Q// 2 y9 J; }. `" ` k) H6 ^// Initialize the variant that will hold the BSTR. Set the variant's / h6 Q: a# E4 Z6 x// type flag to indicate the fact that this variant holds a BSTR. Place the + A3 S0 G9 ~/ R% s// BSTR into the variant structure.3 ]3 [3 D; D; p9 H
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) z( n7 a; Q- ^2 F8 {* x- n+ [6 L 5 X7 r/ C! i+ L. x9 N, T ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' c/ m% E" R1 U$ y ?( T
VariantInit(&requestVariant[0]); ! C7 u; q, S1 S' g, g5 S requestVariant[0].vt = VT_BSTR;; J( h) N" C% V ^
requestVariant[0].bstrVal = itemStr; 0 [: [+ j8 h% J+ a2 a v $ y$ N% l' }6 Q# V0 u topicStr = SysAllocString((WCHAR *) L"system");# P- o) t. T7 e2 ~/ u H
VariantInit(&requestVariant[1]); ( N3 ^0 d( y! L6 b' M7 |: D6 @ requestVariant[1].vt = VT_BSTR; ! J. a8 s2 _4 l requestVariant[1].bstrVal = topicStr; ' ~) m7 s1 B& F* q/ J. m& K0 t- [$ ^( W& _2 y
// Set the DISPPARAMS structure that holds the variant. # \# l2 z1 @: q, J9 s+ w6 |5 n% E" k+ j) g9 w, K
dp2.rgvarg = requestVariant; ! f( P' t5 X+ N) C, t2 i8 x* | dp2.cArgs = 2;) `9 R' `; S A! B+ B
dp2.rgdispidNamedArgs = NULL; - H- c( y1 }5 K dp2.cNamedArgs = 0;3 b' R7 c* Y1 r8 e4 [: ~- g2 a( Y- W
) r5 Y6 R5 K( ? var.vt = VT_EMPTY;7 z" K: H& ~$ U7 b2 W
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// Call IDispatch::Invoke() 5 ]* Z4 Z, a; q+ e6 |$ g4 s3 X4 q% ^7 v* H2 g
hr = m_pDisp->Invoke( ) T- Z) C. m6 q3 e* O C3 O( q requestID, 6 c3 h0 B7 T( |' v; D& V IID_NULL, 6 ]# M+ B. Y' l LOCALE_SYSTEM_DEFAULT, 1 b5 G/ ~8 q; d' Y( W: `9 z2 ?# A* o DISPATCH_METHOD, 3 v2 A: {6 O. o2 Z4 t &dp2, w' x7 L* j/ T! f3 V &var,: U9 Z8 I) i" x6 V- r
&ei, ( ]& |4 d: \, g+ L8 _ &uiErr);. [ l/ N' d0 }9 [
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SysFreeString(topicStr);1 D3 P4 n+ |! k. s4 k
SysFreeString(itemStr); 8 M1 Y8 O9 ^! M8 ~请问该程序是获得extend里面的哪个值?5 j4 X( R* N$ Z' {
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????