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: 4 l8 P1 M! J1 X4 p- N9 v4 yName = (WCHAR *) L"Poke"; # K) C% S1 x* s; i4 m: S- i: B , {% I* a6 ?/ c' H; B. t1 Y4 y. K6 E* T; a
hr = m_pDisp->GetIDsOfNames ( & @9 e, Q) B8 u& _, L e6 | IID_NULL, // reserved - Q% {. F8 C, m- d &Name, // Array of names to get IDs for 9 A: G$ G* R1 | _# g. Y5 }) s6 Z 1, // # of names in the array : n% ^3 t9 j5 ? LOCALE_SYSTEM_DEFAULT, // System locale # \1 b' V( e! ^& ?2 i( `4 N &pokeID); // Array of IDs to fill on output- f4 p/ g1 Q# L# A4 Y3 x
, z% G6 _3 N2 f' R$ Y2 G3 I if (hr) . T j# S) O+ s. U. B! H8 w {# Y) ~ P: r4 k) q9 F
MessageBox ("Get Poke Unsuccessful");# B3 d' \, e8 R
return;/ ~4 b5 n4 [$ L" E1 b" @. Z, |
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/**************************传递数据给extend**************************************/5 M( Y' c3 b9 r2 E/ l' }9 d4 Z2 b' C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 I9 q# k" X1 V' S5 P& X. ^ ' Q. Z( d8 J/ V6 Z5 W
valueStr = SysAllocString((WCHAR *) L"1232"); & U3 ~# p0 X5 m8 W$ U* F VariantInit(&pokeVariant[0]); 0 b. W! W6 c' d( _ j+ e
pokeVariant[0].vt = VT_BSTR; * a6 `9 a" T2 e, d) }, p pokeVariant[0].bstrVal = valueStr;5 C5 z; X- C6 q2 B! y
7 |- U8 V4 Y$ ?4 J/ C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - p# b' a) L' j) C3 ~- N) d9 X8 O8 i* Q VariantInit(&pokeVariant[1]); 1 V' k- {* O* r& B' k4 O. Q
pokeVariant[1].vt = VT_BSTR; " ]; a( A- p% X9 [: N! ] pokeVariant[1].bstrVal = itemStr; : ~: ?7 }3 f/ |9 d4 {6 ~* U, R7 @' b ! `% {5 N: Z" M Z/ }4 W8 J topicStr = SysAllocString((WCHAR *) L"system"); * U/ n' T1 g4 f4 S1 k( R, R VariantInit(&pokeVariant[2]); 1 h5 C$ t6 J9 M9 R/ P8 l) X pokeVariant[2].vt = VT_BSTR; ( d8 G; K8 p2 b* r8 f/ j# v" F pokeVariant[2].bstrVal = topicStr;; T0 Q4 t2 A4 e
8 G2 z. G6 g3 _1 N* h// Set the DISPPARAMS structure that holds the variant. , K( ^ P7 S, y5 [: \9 o* P, r3 ~8 G6 ?: n. `# Z% h
dp.rgvarg = pokeVariant; ! ]5 S+ e' ?+ {! L2 }, M% q dp.cArgs = 3;; s' [: L9 i0 u5 z3 F% {
dp.rgdispidNamedArgs = NULL;5 n) {5 \2 s( m4 l
dp.cNamedArgs = 0; + \; N+ p ?. `, ?' w/ t% B% s8 `. W* r
// Call IDispatch::Invoke()& ^# | ~: I7 [5 H3 e0 B. I
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hr = m_pDisp->Invoke( ! |% ?# B- n. _) q/ Z pokeID, ) x4 V0 C. d' |* V6 J IID_NULL, - O, T7 V4 B/ Q5 i LOCALE_SYSTEM_DEFAULT," y% V8 ^) ^" M5 D* M) Q
DISPATCH_METHOD, 2 P1 @, d' m, B1 Q; J; i &dp,0 Q8 a' `$ Z% ?" e/ k8 @/ I
NULL, 5 X+ H7 S, w' u7 M2 f' T1 e4 G &ei, ( b2 c' c" D4 j* e q/ c+ T &uiErr); 5 B: X5 h% X+ a- \7 D) G2 E; r ^6 f( _0 i" W9 F' C' r& K" x
SysFreeString(topicStr);6 E5 e" j- N. T( H* \$ k7 ?
SysFreeString(itemStr);8 n4 I$ U: g" d4 ?. y1 C
SysFreeString(valueStr);% p9 E8 B' ^) c) x j* H& M
/ \1 c. G# |$ {0 [ {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???) @+ b# ]. z3 ?* B
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????* ]7 a& W5 Y" G- v( d+ p
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2.这是request的程序8 Q# T0 m, n) G5 r( [
// Request a value from Extend: c" o* U7 e7 k; k% T, h
// $ Y$ s# d) S8 I* S7 c! C% D3 f// Initialize the variant that will hold the BSTR. Set the variant's7 Q9 {' T* ~2 [) s2 u! h. m( N9 r
// type flag to indicate the fact that this variant holds a BSTR. Place the5 ]; d# P. M3 o% ]& ~) H
// BSTR into the variant structure. 4 q- M3 M0 E2 z0 d, j- Z2 }$ S$ u8 M7 s+ m! U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" U1 ?$ Y. P# [/ @
, ^# E; ?, ^. ]& G. ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ M% {5 j0 X1 G' G# n2 G VariantInit(&requestVariant[0]); / b+ |9 I D9 W5 V% y+ @ requestVariant[0].vt = VT_BSTR; * u" u+ o3 g8 b5 n requestVariant[0].bstrVal = itemStr;6 @5 Q/ @8 z1 }/ [) x' B6 k
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topicStr = SysAllocString((WCHAR *) L"system"); $ Z" M. m. @& [ VariantInit(&requestVariant[1]); ' J0 c: ?7 i0 z: I requestVariant[1].vt = VT_BSTR; - f, R% |) m5 V% L6 `$ M$ @ requestVariant[1].bstrVal = topicStr; 2 s" ]! l8 B M6 W ; R# E! h5 j# y0 ~0 e0 v; {. g% D// Set the DISPPARAMS structure that holds the variant.% Q6 g3 n2 d9 p- R- `" O, T
7 y+ Q3 e! `# H' }& i dp2.rgvarg = requestVariant;& I2 _' T% H& a( }9 s
dp2.cArgs = 2;. @ {$ Z1 D# u, T4 t' d
dp2.rgdispidNamedArgs = NULL;, I1 X# C! v) d: m
dp2.cNamedArgs = 0;0 S) O, N9 C0 Q8 P
# E3 x0 M1 z+ R& w- [3 N% c/ S var.vt = VT_EMPTY; $ m5 `6 g9 K, F6 \9 E/ T " R8 x+ b) B! M. i; N* Y// Call IDispatch::Invoke()8 g7 p7 _4 }+ h' ?
/ d& A7 @* D$ b" `8 X4 Y hr = m_pDisp->Invoke(' b$ k7 r2 N4 A& c( W6 D
requestID,% s/ |& ^! y0 L, I
IID_NULL, & p5 {% {8 g ` \; D. E! S LOCALE_SYSTEM_DEFAULT,0 T( C- W: Z0 A; E/ y6 \! K( o6 s
DISPATCH_METHOD,, V8 c( e0 I, k9 [
&dp2, 2 W/ o, v; x' \/ `1 z/ O2 X &var, 2 _% K& I d/ H' S5 \5 l &ei, 9 E/ V t/ l8 n1 w& }* }# T: Z9 o( L &uiErr); % Z3 m7 p$ F1 S4 i$ l$ p% t+ t% A/ \6 C. M! w
SysFreeString(topicStr); 8 X8 T/ y2 m2 A. n* ~ SysFreeString(itemStr);4 M- h% _; @; ?. M7 o
请问该程序是获得extend里面的哪个值?/ l7 n7 y' D9 k- r$ j& R U+ C
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????