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: `- S g; `: l0 nName = (WCHAR *) L"Poke";# h, x* C7 ]# ~+ i8 A! s
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hr = m_pDisp->GetIDsOfNames ( , Z* q5 D) k' F IID_NULL, // reserved* n7 m& x; q2 O0 A* O9 r
&Name, // Array of names to get IDs for$ P: u" G1 M" h' ]$ F- [
1, // # of names in the array* M; S. i# }# x
LOCALE_SYSTEM_DEFAULT, // System locale* ^4 ^' c, m" _; w; W' D+ ^; D
&pokeID); // Array of IDs to fill on output ; z+ u4 m2 e( ? 0 u* @) e- h) T: Z& r if (hr): ]2 B/ g( d3 G6 M! Z
{" v7 h& L3 e1 D2 Z7 {
MessageBox ("Get Poke Unsuccessful"); 9 P$ G( M! I: y. i5 P. D return;/ w2 K+ P8 F: N7 X0 S
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# C- ?/ J( ]2 A8 b/ `/**************************传递数据给extend**************************************/+ M2 W6 `, l0 l: ]; M$ X% A# p8 _' g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - w# v4 X. p( x9 j0 K1 y 6 [( s) L- u& x% p, G, c valueStr = SysAllocString((WCHAR *) L"1232");! v L" ~6 P* k3 A5 S
VariantInit(&pokeVariant[0]); / Z7 h* H1 E( `8 [' k" Y$ _7 d
pokeVariant[0].vt = VT_BSTR;- |% a, W! c) D/ W
pokeVariant[0].bstrVal = valueStr; # |1 @+ J& n+ N0 ]& z( g* ?5 ^& t2 c1 V* u3 l2 _/ f! I( r6 ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# g" b& J& x, s
VariantInit(&pokeVariant[1]); 2 T6 j9 ]- l$ X6 q5 L% D/ k n7 H
pokeVariant[1].vt = VT_BSTR; 9 P I- v2 `* Q/ W/ X pokeVariant[1].bstrVal = itemStr;8 G; `" X9 k% H
7 f9 l% R; F! S2 E# p topicStr = SysAllocString((WCHAR *) L"system");( I) g1 x/ i+ R. B
VariantInit(&pokeVariant[2]); & V3 B" t* }7 r0 F( j
pokeVariant[2].vt = VT_BSTR;9 M4 s' E" ]0 s3 ]
pokeVariant[2].bstrVal = topicStr; ! J# v8 c" H/ v& ~& d# ]& ^4 l5 U( {* F/ O
// Set the DISPPARAMS structure that holds the variant.+ b: ~8 b" v4 R, ^8 H
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dp.rgvarg = pokeVariant;; p8 Z$ s' R A- p, h G
dp.cArgs = 3;- `! ]- [9 U- _
dp.rgdispidNamedArgs = NULL; 7 V$ S0 K6 Z C$ [) J dp.cNamedArgs = 0; ( W' y, X7 B6 ` # n1 _# y& O* y/ Z" z2 G2 `; s" W// Call IDispatch::Invoke(), V( k1 F% |$ Q+ G2 E2 o
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hr = m_pDisp->Invoke( 7 P1 E0 I/ L& Z( P% ^$ @ pokeID, 2 e: [- u* v0 O IID_NULL,+ G# z+ l; q" W
LOCALE_SYSTEM_DEFAULT, 9 f4 A& x" T* Y" R7 Q. o DISPATCH_METHOD, * \* ]0 e6 ]. z) y &dp,1 X$ ~8 M+ m/ \. ~: U' Q' J2 M
NULL,* y. c3 G5 g5 N8 _# D( D6 o* Z
&ei,+ {" d3 l9 G) z. j8 W- [/ `
&uiErr); * p) E# b) k7 u4 E- T1 C, n+ O# a# g# I( V
SysFreeString(topicStr); 0 w7 v! O' ?, I4 h2 i SysFreeString(itemStr);) n- {0 ]: a$ b( S* s/ W
SysFreeString(valueStr); 5 W9 z M) _% @/ {/ P* Y; _ ]. c" e3 w' h! F
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??? , J# I+ Z& r1 _6 U9 N' X9 c ]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???? 5 f9 d* [' `( Y: m o- Z6 {( |& r! t/ r# F3 O4 R" R6 r
. P8 D# z6 }7 m3 f0 _2.这是request的程序( o9 `/ t% D% d& x
// Request a value from Extend/ @/ B6 W6 v& v+ T# C$ T$ x
// * U# F7 o: {! ?// Initialize the variant that will hold the BSTR. Set the variant's0 a$ M4 G0 V, S6 _# T* A9 X% ?
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 c, a) l1 [' k1 |4 o// BSTR into the variant structure.+ v% {* k" h( U- B. n
6 h* l' w* t4 m4 d9 R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. D7 R8 u7 z* ]: d* x
H1 q" x7 V* v9 X/ I8 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 d/ F; p# e1 U2 d- y1 U VariantInit(&requestVariant[0]); 7 ]/ U3 o, n- Q' J% z requestVariant[0].vt = VT_BSTR; 7 Z+ z; U& c' q8 Y. t2 Z; W1 o; o requestVariant[0].bstrVal = itemStr; , i/ _ N; s+ M) V0 E/ Y( I$ N$ r 6 P+ B8 s8 s9 {1 O" i topicStr = SysAllocString((WCHAR *) L"system");; c. @$ s+ g5 Z
VariantInit(&requestVariant[1]); ) g& p$ t, t8 Q$ S. _ requestVariant[1].vt = VT_BSTR;' o$ z, Z$ f, T6 a: m: }
requestVariant[1].bstrVal = topicStr; 5 Z* J8 r' t% f+ Q2 `' G ( g! |1 _1 @5 o3 Q- d* G6 d// Set the DISPPARAMS structure that holds the variant.& o6 e8 g" H, q1 A
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dp2.rgvarg = requestVariant; ; V) K0 A }" j; T dp2.cArgs = 2; ! N* X9 m5 L$ A* X2 y" t6 N0 B0 J dp2.rgdispidNamedArgs = NULL; . e- N0 J* Z+ ]4 U7 A7 V+ Q dp2.cNamedArgs = 0;4 g0 p) ?3 B6 f. c" }
3 V1 V6 A% w' U9 ~$ _& i9 t var.vt = VT_EMPTY;* W! e' @2 [4 @! y, Q @! z
9 B& K5 e g s. @" o! F8 _// Call IDispatch::Invoke()& q* K: o# i7 ]+ H. b- S0 q
( n! c" U0 P3 h) s1 A hr = m_pDisp->Invoke(6 y! K0 [ L3 z% p1 V/ Y
requestID,! G" W9 {( j; I
IID_NULL, ) o5 {8 S# K" S5 C! q. ~ LOCALE_SYSTEM_DEFAULT, " q {6 p, l: \) |: M6 T$ ? DISPATCH_METHOD,3 G2 y0 t5 F; Y' D4 v( o
&dp2,* Q% z& C' [, f
&var, : Z0 x8 ]' T X" a" V: y &ei, 6 h9 C4 M+ D4 Y; K* F &uiErr); & I% r/ _6 J6 r% A) R9 k. p. y) Q# t, X9 {; o! K, Q2 s* Z
SysFreeString(topicStr);1 C$ D3 k9 U2 T/ T1 t
SysFreeString(itemStr);; A/ l/ f4 L# Y* N) D; _
请问该程序是获得extend里面的哪个值?: w4 c, L0 Q. W5 q/ A
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????