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:, a9 T6 C. U' Y; I
Name = (WCHAR *) L"Poke";# V, E2 h1 O; g! W$ V/ ^' I: L1 ]
- w& A$ T4 m/ A* Q; ] hr = m_pDisp->GetIDsOfNames ( ' O1 A' ~# `: W, x. k! r. u IID_NULL, // reserved( S6 P! {$ D7 U
&Name, // Array of names to get IDs for ( Z/ |. \, E1 a 1, // # of names in the array K4 E0 [3 `/ V! f$ ~. c
LOCALE_SYSTEM_DEFAULT, // System locale , d: S. Q% A- t% f &pokeID); // Array of IDs to fill on output. _: p7 L Z7 |4 `/ ^9 X4 ^. q# ?6 _
( l5 _. J; O, s7 d$ v6 O
if (hr): i% H; V4 f% Q
{ & i. R; J5 H4 m( D: r MessageBox ("Get Poke Unsuccessful");: [6 c9 D, a9 R% l- L" E
return; 5 m+ h, L* m/ I, N) k }, t" B/ Y8 q# V3 y& |
5 e. F5 v* K5 J& x7 U/**************************传递数据给extend**************************************/ & [6 t: a; I. F3 b# g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); v$ S' [. T; J& L5 V 1 d5 i/ Q: |# l6 F+ i! k# H5 k& Q6 {
valueStr = SysAllocString((WCHAR *) L"1232");9 S+ f# p. t. q4 N
VariantInit(&pokeVariant[0]); ' Z! D( q4 k+ @8 C: H2 U pokeVariant[0].vt = VT_BSTR; / `0 X8 H0 \; m pokeVariant[0].bstrVal = valueStr; / ~* q2 E# ^1 U. k2 @7 R. m. |( n " y6 W; N$ y' h" U0 G% } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# u6 Z2 J9 \- Q1 N
VariantInit(&pokeVariant[1]); ^: t/ Z4 O# a4 O6 @' F
pokeVariant[1].vt = VT_BSTR;0 l% p ?" t6 N0 ?9 b5 {/ f
pokeVariant[1].bstrVal = itemStr; 2 e/ }8 e$ f9 y& v$ K; \0 Z, B7 w+ K$ p$ {" ?7 ]4 o
topicStr = SysAllocString((WCHAR *) L"system"); + _5 ^2 H: J2 a$ A# I8 g VariantInit(&pokeVariant[2]); 2 }2 p5 C8 E$ @/ x% }3 ] pokeVariant[2].vt = VT_BSTR;* F* V% q9 Y' ?- h8 G( E9 ^% [% O& o
pokeVariant[2].bstrVal = topicStr;2 y T5 g1 v/ }& ?; W6 F6 g
7 b6 w3 A; A$ O2 E# H4 [( j// Set the DISPPARAMS structure that holds the variant. , J- [9 V3 Z% D7 R% i% `* Z. G, S: j. x5 M! S7 `7 L; P/ j
dp.rgvarg = pokeVariant;+ f9 o- l* }. Q" h! Y+ p. }
dp.cArgs = 3; ) Z" q) M. B# R6 r" E dp.rgdispidNamedArgs = NULL;# e, ^6 u2 p/ {: z6 w5 C
dp.cNamedArgs = 0;4 p2 S) L0 R7 B$ k' }
4 u t/ ~' A" i// Call IDispatch::Invoke() ! H. J0 d7 X: B: Z / ?. M9 D+ d$ @, L9 n* E hr = m_pDisp->Invoke( / p+ h/ ]2 `( I/ O: k* o n) ] pokeID, . A6 B7 ?! s% R* g# j IID_NULL, - f4 Z1 |: y1 v LOCALE_SYSTEM_DEFAULT, 5 \; ^& L& t3 P: Y- c- o DISPATCH_METHOD, ( m( U1 w1 j: d4 g &dp,9 H. P8 w" q& V! e$ r
NULL, * K, D5 s2 }& j- i2 x &ei,7 Y% Y7 L" I$ [- O7 [! i
&uiErr); / z$ b! H! l8 x! ~- b) _+ _% ?% w" @0 K, v) G1 V: a7 w
SysFreeString(topicStr); ! r: ~2 C7 [) a* Q7 H/ l SysFreeString(itemStr); % N) e0 R/ a1 n% o1 g$ F1 \ SysFreeString(valueStr);) J4 l. }* ]: a# w; q" A3 \1 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???# Y) ?6 e: G* L$ c) W, k# L' C! s/ ~' ~
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???? 4 ~* b/ l+ ]- l6 r) ?" i+ S4 x0 l$ E+ j& R! G+ x, Z
' y# v6 W( l+ t* {" Q- Y2.这是request的程序 , J$ m9 {$ ^0 o+ y' W0 l: _3 k// Request a value from Extend ! Q X5 C+ e, Y3 o% t//- X# k3 V$ Y2 S' O5 Z
// Initialize the variant that will hold the BSTR. Set the variant's % ] O8 H0 T z, C& P/ q// type flag to indicate the fact that this variant holds a BSTR. Place the) [7 ^% f; v0 k3 K6 y
// BSTR into the variant structure.' G0 j+ B5 t! Y% r( B' Y
) w1 K/ q; x3 [- ?9 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); n6 k1 h7 j0 W5 C% f6 M2 m9 S; d 8 E* G d& D$ l6 ^! O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 t2 g. B. J p7 |8 I
VariantInit(&requestVariant[0]); ' D, N% u8 s& N1 j' i
requestVariant[0].vt = VT_BSTR; 4 b3 V* k( @! ^+ P3 Y" h requestVariant[0].bstrVal = itemStr; % I5 |& c3 R- H! q# d$ \ / K% y! u: ]& Y/ i1 E+ A topicStr = SysAllocString((WCHAR *) L"system"); % @% M* B9 H* x VariantInit(&requestVariant[1]); , N& M. u% L A
requestVariant[1].vt = VT_BSTR;! f0 n* \' S2 }) l. ^1 }5 m
requestVariant[1].bstrVal = topicStr;& R+ z5 N5 e. ?
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// Set the DISPPARAMS structure that holds the variant. " ?0 E1 i/ W8 p; l+ W& \ % O% P* d# I5 ^& A) @6 d. e dp2.rgvarg = requestVariant; ; c' l% a2 q5 U5 G% G dp2.cArgs = 2;& O2 I: I `4 \& o
dp2.rgdispidNamedArgs = NULL; 1 L% v9 x! a$ J: R dp2.cNamedArgs = 0; 8 d( U3 l2 ~: C1 i# S$ N# |& _4 T% p. G( c/ m+ d5 `
var.vt = VT_EMPTY; 5 P6 b! d! X L ( v! |9 l+ Q: D- E: ] j# b4 W// Call IDispatch::Invoke() $ Z: A- a8 a$ k- Q' n: F* l2 J & g8 _' Z4 z d' z hr = m_pDisp->Invoke( $ L$ D" L+ _" `7 M( e$ w requestID, 5 k9 {% ?1 O4 M, j IID_NULL,. f2 w6 y( |/ [) Q# M5 E
LOCALE_SYSTEM_DEFAULT, " A) d O! ?; O& { DISPATCH_METHOD,7 a- v' e' M( I0 _1 j& {3 c
&dp2, d Q) K: O/ }1 }
&var,! V. J3 v/ `2 J1 S/ [! Y, E2 q
&ei,/ M4 Z# H& N# O" e
&uiErr); 2 Z; F% d4 t0 T# H m m; z 9 w3 h+ W( ]2 c2 q6 b2 I SysFreeString(topicStr); . A7 L6 }* _1 Z6 ~ SysFreeString(itemStr);5 p8 | J/ i: l# L
请问该程序是获得extend里面的哪个值?2 p! z7 h# i( ]2 e
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????