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:3 k4 Z' f- b" ^/ D. x
Name = (WCHAR *) L"Poke";6 @8 \9 T; w) J
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hr = m_pDisp->GetIDsOfNames (, m" v7 I: y9 u1 z/ w7 _- Z) ^
IID_NULL, // reserved4 P7 |, g& q1 K: x8 q' P3 ?
&Name, // Array of names to get IDs for ' p2 T8 Q' G1 W2 I$ j9 p+ H- j8 X# u 1, // # of names in the array ; V/ h: a8 F+ R' b LOCALE_SYSTEM_DEFAULT, // System locale8 D" V2 Z" s V- W
&pokeID); // Array of IDs to fill on output " @. g1 m, I- T# U 9 V0 D% h" { n; h1 Z7 Z6 u& z
if (hr) 9 |; P* U0 V% }' I# Z) r4 c$ h {; ~+ f( E3 h$ H
MessageBox ("Get Poke Unsuccessful"); 4 o* o) X) { L. Z/ N$ q0 X" I return;& k( T& ^2 l7 i# D k" z+ O6 x
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/**************************传递数据给extend**************************************/ 5 n7 p& P; U+ o( Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . k( \! s8 Q" D 1 I+ Z8 E0 W3 ~, D; C
valueStr = SysAllocString((WCHAR *) L"1232"); ) O& N6 c5 I* o" H7 {* N VariantInit(&pokeVariant[0]); 6 M/ [9 e; i7 i9 ^0 D7 S( `+ P
pokeVariant[0].vt = VT_BSTR; ' p( Q6 _$ P8 I& b pokeVariant[0].bstrVal = valueStr; 8 @6 p1 C8 H; H/ h) F7 j, l% V) U {' o" t/ e2 q8 y+ ~/ i$ `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& U0 ]8 X% z4 L0 J
VariantInit(&pokeVariant[1]); 2 z# ~: e# Y p. X7 `. v
pokeVariant[1].vt = VT_BSTR;5 z: O( r. V: t+ \6 {7 M
pokeVariant[1].bstrVal = itemStr;+ h' y* R5 ^, f' @; W* ?
& M+ v0 n r! A$ u topicStr = SysAllocString((WCHAR *) L"system");, F: B- K, Q- D1 t. G3 ?4 V! f
VariantInit(&pokeVariant[2]); $ l1 ]3 ]0 U6 g; L5 _% d1 }+ c/ f7 b pokeVariant[2].vt = VT_BSTR;- f ]. k2 L. s% l! D/ a, @
pokeVariant[2].bstrVal = topicStr;# U( L: O3 c6 g! u% H$ v5 F0 e u
' l6 V& r! i9 l// Set the DISPPARAMS structure that holds the variant. ! N) m$ J, \" r2 b3 L1 @( G6 { / T' d" Y0 @3 E( j! X" r* l. T dp.rgvarg = pokeVariant; i: i9 `& ^6 l+ n& p; S+ W dp.cArgs = 3;/ ] `2 g. K% R! q, ?( \* b# d* J
dp.rgdispidNamedArgs = NULL; 0 g) A0 e& _' R4 C2 u dp.cNamedArgs = 0; ) ]8 |4 R4 U2 U9 a) J" x( }- b3 q3 }2 d: e1 V
// Call IDispatch::Invoke()+ w, W; [# S0 ]' ?5 R8 O
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hr = m_pDisp->Invoke(" l; q+ S( ?1 {4 ~7 D, I2 n- y
pokeID,- U0 E9 V" u' E( _ K+ [
IID_NULL,) o5 }, ^$ ^! P! ?' x3 \. V& c
LOCALE_SYSTEM_DEFAULT, 7 r2 n1 t: Z# v0 V3 e9 h- ~ DISPATCH_METHOD,* w+ \& t7 m- T" _* s+ R, X
&dp,4 O( i, |) ~8 X+ c/ ?
NULL,1 h6 [* U* V6 i4 Z. X) d: z
&ei,: |4 ^- q# L5 k3 O$ J
&uiErr);8 w! R9 ?- f' i0 M; _$ H1 r3 G, b
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SysFreeString(topicStr); / i5 X* I' p* p, c3 m( y3 }. k SysFreeString(itemStr); , x Z3 `; ` b% Q, ~- F( J SysFreeString(valueStr);* h. C, D( f, M" q' C2 w
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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???7 ~( n8 l0 Y' T! [/ I9 U) h1 [
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????( K9 @$ U- b+ o3 O6 q$ A3 H# s
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2.这是request的程序5 n! B$ e: x0 \5 B9 Y( @! K
// Request a value from Extend ) n2 T- C9 m9 X) g/// K$ H7 w; X. S F& u1 h8 A1 K
// Initialize the variant that will hold the BSTR. Set the variant's0 \1 a- t4 _" _ B0 W1 [+ n7 M2 T, O
// type flag to indicate the fact that this variant holds a BSTR. Place the ! ~1 T7 b# y- m/ i8 {) C2 f. ~// BSTR into the variant structure.0 \6 T0 t5 p1 e0 K' f
# L/ r* N) T7 N0 v5 ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 ]0 y! W2 f+ J- k 0 \1 C' K+ ?) A
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : c) A$ V5 r& n3 z VariantInit(&requestVariant[0]); : P# D* }/ z( h6 R$ |/ P
requestVariant[0].vt = VT_BSTR; ( z- W6 U+ A+ V; R: n requestVariant[0].bstrVal = itemStr;) Q3 P; q) G8 e; U" p/ f
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topicStr = SysAllocString((WCHAR *) L"system");/ ~9 S1 e& k- |. H& S% v
VariantInit(&requestVariant[1]); , Y) e0 r3 i* P# ^. }/ Q& f% J4 P requestVariant[1].vt = VT_BSTR; 5 \ O& g: z( Y, B5 m3 y% M/ T- `& c requestVariant[1].bstrVal = topicStr;* S4 ~+ T0 h7 q1 X. H: Y
" Q; W0 p2 k( ?( C. S$ V1 S, M7 R: }// Set the DISPPARAMS structure that holds the variant. " N: y" z5 R4 l# h' S1 G4 a H. f4 N% v; ?2 I$ Y D$ `
dp2.rgvarg = requestVariant;9 b9 S) V6 q0 n V9 s3 k6 L( [
dp2.cArgs = 2;' Z: ?0 l; p9 p
dp2.rgdispidNamedArgs = NULL; ! \4 i/ ~! k! c, ]' x3 h dp2.cNamedArgs = 0;" w; g$ a# l+ j7 Y6 X' z
- @! _! |9 q- a3 `* F var.vt = VT_EMPTY; 9 j# x, G% H4 y- T( N& b" P) g# G( U# N* F
// Call IDispatch::Invoke() . I- @' R' \& X' E3 U& x0 ^3 V
hr = m_pDisp->Invoke( , t, }/ ~) p r3 C) E0 t; T2 K requestID,9 L: w8 r( p) m/ _
IID_NULL, 1 Q, m9 g1 w- c2 x' e1 M LOCALE_SYSTEM_DEFAULT,/ E; ?8 @( ?( F0 E* J2 S
DISPATCH_METHOD, 6 A, w, X6 f! z" o &dp2, " _" V; d4 m, y) D6 [6 S& } &var, o0 a! w' p' _3 A
&ei, . Z! d3 P# _: U0 X; g' r &uiErr);! |. L% s- E; [- ], B' D& @
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SysFreeString(topicStr);2 S4 M. A2 s/ B8 w% k& N
SysFreeString(itemStr); # p H5 ]! h+ H9 ^2 V! j! L请问该程序是获得extend里面的哪个值?" E4 E$ w! I7 l+ H/ g; @* A: q
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????