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:% x F* J" |- r6 _
Name = (WCHAR *) L"Poke";, n1 y( ] E) u* ?! p& }# l
7 L2 q3 g) ]. M( L4 Z1 T! c hr = m_pDisp->GetIDsOfNames (5 P# n; ]! K. x; c2 c7 L- L$ N0 ?
IID_NULL, // reserved ) F. @2 e p! w& m+ d# E) N &Name, // Array of names to get IDs for5 x6 u- h( ^8 h5 Y" J f
1, // # of names in the array ( N* M8 C3 H, A3 z LOCALE_SYSTEM_DEFAULT, // System locale 0 M, f8 }) q) o &pokeID); // Array of IDs to fill on output * D* S8 P5 ?) T% p6 { 8 |' a% k- j" G if (hr) - U( L( v1 h9 i+ L; K, S% U { 2 P3 U0 [" e8 }; J0 c MessageBox ("Get Poke Unsuccessful"); 4 ?. u+ _' ^$ H8 }. P' _ return; ! m# r) x- U+ G" t: b }8 Z/ Z' ?* |1 p; a; O$ K
) B. q( G6 n, t2 L& |/**************************传递数据给extend**************************************/. V! ~* G6 I8 E3 ?9 {. e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * t" m: C. f( O9 p- V4 I ! i3 {8 O- Q, _- H
valueStr = SysAllocString((WCHAR *) L"1232"); 9 D3 l& V5 r* }& P VariantInit(&pokeVariant[0]); " _& W$ k; ~1 w2 | pokeVariant[0].vt = VT_BSTR; - j+ q1 v& V/ W, E9 m/ x% K pokeVariant[0].bstrVal = valueStr; $ i; B" U! F, k5 i . a" {* M/ s5 N( R) d( T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + S6 N. w9 U, ~! F) i# g6 M VariantInit(&pokeVariant[1]); * _! F/ h F6 k* ? pokeVariant[1].vt = VT_BSTR; 6 L) F8 H" F7 G6 t pokeVariant[1].bstrVal = itemStr; / y4 ~3 o. _ T8 k0 @ ) n" h4 X& f4 c, r: F topicStr = SysAllocString((WCHAR *) L"system"); D {% b9 L1 D0 h- t VariantInit(&pokeVariant[2]); 2 M, t0 l2 m1 a% ^# C
pokeVariant[2].vt = VT_BSTR;9 v1 ]1 T Q# S- n
pokeVariant[2].bstrVal = topicStr; 7 F. V. q$ a4 l! z$ A8 _: f4 h) {% J) X& @' o6 ?6 s( h/ k0 r( ]$ E
// Set the DISPPARAMS structure that holds the variant.) ^ `# W! i! k- p9 y
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dp.rgvarg = pokeVariant; . w# `# b8 J/ P$ r) l( M dp.cArgs = 3; 6 [# Z' y& a, |% B+ b3 d: t4 R dp.rgdispidNamedArgs = NULL;9 X; r- c! H1 U. x
dp.cNamedArgs = 0; 4 r. E, t! N' l; Q 5 n6 l% d. }, Q: y4 d% {// Call IDispatch::Invoke() " u% `0 j/ S2 m 0 g# T7 j6 [9 G' k+ j, c A% @ hr = m_pDisp->Invoke( 3 l0 u# o) o# v pokeID, 3 D! A, J( F5 _ IID_NULL,. C- _7 t: X9 E7 \/ B
LOCALE_SYSTEM_DEFAULT, : F1 h K, D9 y/ ]6 H" X6 [7 i DISPATCH_METHOD, % t2 g: p2 [7 g7 x &dp,, g, a8 b6 j- D
NULL, 1 _2 f- S; L4 b8 D0 T% K) D &ei,8 U$ p8 u5 }& x$ _- g
&uiErr);( B& ?" |2 i9 J4 d2 `- f
% d, X8 g8 J% r( O; m
SysFreeString(topicStr);( t' q- b# Q4 M) i* W2 x
SysFreeString(itemStr);+ e6 Y4 Q9 c% F5 k7 k8 H
SysFreeString(valueStr); - L) p% |' u/ C/ O3 w: J9 |2 Y( z9 w6 Z' L1 r$ v
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???2 w, _1 M5 p @
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????3 @6 E$ P% r, V2 ^ p) \
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4 C$ U8 j- ^% x" W: f* T2.这是request的程序7 t. J& y4 G2 M: w0 a5 v
// Request a value from Extend. ]1 f0 d( S5 p: s0 z
// 0 \3 [) P7 @3 u2 Q4 ^4 K// Initialize the variant that will hold the BSTR. Set the variant's, z$ T4 Q( `' }6 l1 C% l, q
// type flag to indicate the fact that this variant holds a BSTR. Place the - g/ Q$ j7 k; {% `// BSTR into the variant structure." \3 [, Z$ Y2 b/ X9 R4 ^
0 o& U! O$ T. P
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 L, @* j0 t; w$ k! a
0 }" M9 s" b5 M; } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 F" q; e4 J0 Y# ~ |& q3 P
VariantInit(&requestVariant[0]); 6 W6 q, B, f" g }) h0 \4 }' p. v
requestVariant[0].vt = VT_BSTR; - K) L6 z0 z1 x0 ?+ y' T" ]0 Y requestVariant[0].bstrVal = itemStr; T* l4 C4 `1 A% U) j) ^/ X0 R c: k0 K* z- X
topicStr = SysAllocString((WCHAR *) L"system");+ Z# W" O" ]7 B# E2 P6 H1 Q
VariantInit(&requestVariant[1]); * \; T/ V. o7 f
requestVariant[1].vt = VT_BSTR;3 O k) n5 ^7 @# c
requestVariant[1].bstrVal = topicStr;/ r/ a2 ` @$ v, i8 T; ?
' q) Y3 l4 K. V3 W- E// Set the DISPPARAMS structure that holds the variant.- x& `; `; A+ ?: H' G- X$ H
' T+ d3 g. H1 I" ~" Q dp2.rgvarg = requestVariant; ( A: a2 |7 J- e" n4 R& r dp2.cArgs = 2; ; v; r2 X8 K' p2 }+ q4 T7 T dp2.rgdispidNamedArgs = NULL;+ c. W! p" n9 Y* Z% {4 @
dp2.cNamedArgs = 0; 6 x% \* [( t. ]* y2 d3 D# @8 j# U2 k. v1 A' K6 Q, L
var.vt = VT_EMPTY;; J% J7 ?: ]8 K1 E' P2 K8 l8 ]- i6 K) l
' l8 ?9 k! w* P6 L" }
// Call IDispatch::Invoke()5 B& E, H( v- A# T' {/ P; ~- t
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hr = m_pDisp->Invoke(1 b; a8 e& k4 W( Q* o9 j. a
requestID, % b+ S/ A! h& Z& i3 r IID_NULL," m& c6 Y/ j8 V0 s
LOCALE_SYSTEM_DEFAULT,& u! g- X, j2 o% L! D* }
DISPATCH_METHOD,0 T' g& F, P" Y* k3 j
&dp2,$ r( j7 o# ~: T
&var, : R+ J4 D& M/ ~- K* w$ w R0 I &ei, 6 u! a: I ?0 j q &uiErr); - e4 ?. ~! G2 n8 Y4 ^5 E# R# u5 ~7 ? 4 v2 L/ J( c! g. B& S SysFreeString(topicStr); & ] S% N% Q$ W+ N6 {- J' d" T SysFreeString(itemStr);& T6 O+ P" \" Y
请问该程序是获得extend里面的哪个值? ; w* T3 F9 U- y# X. J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????