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:# C x* c7 ^# A
Name = (WCHAR *) L"Poke";$ C3 f& r4 i" h [
" F3 j: a6 q. D! Y! s$ ^/ n hr = m_pDisp->GetIDsOfNames ( - X3 h8 }' x( _7 Y IID_NULL, // reserved + L7 N6 p4 l2 Q" b( z& Q; `6 F; }% ` &Name, // Array of names to get IDs for3 C0 p( E" Z$ n) b
1, // # of names in the array 3 h8 X- h+ U0 X3 i LOCALE_SYSTEM_DEFAULT, // System locale) U8 z# X5 O t
&pokeID); // Array of IDs to fill on output - B m( j. `: z7 [ 3 f4 o7 _2 F5 Q' n1 u( F) Z6 S
if (hr) - W' B# w0 n3 A+ Z2 x3 M* d, Q/ t {% h v6 h9 c& L" J
MessageBox ("Get Poke Unsuccessful"); & I8 l2 m1 o) u- G: @* } return; 8 v3 T/ y1 C/ [& K' Q9 I1 m }. c/ x/ @+ J* X( I
/ Z1 o, \3 Q+ h( h2 `5 N0 t/**************************传递数据给extend**************************************/ ; }! G9 ?7 X& v& k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , c& i) Q" j! B( z! E! x$ T; h 8 C1 G/ V" o/ D+ ]3 g$ Y+ D: W valueStr = SysAllocString((WCHAR *) L"1232"); 2 q- h4 |! Q8 E9 Z# S VariantInit(&pokeVariant[0]); 1 y' D1 ~9 a! w
pokeVariant[0].vt = VT_BSTR;, X! ^: i0 s7 v" R) e' r! R& E) {
pokeVariant[0].bstrVal = valueStr; / E$ S9 B% ?/ D% v' h ! I: @- ~' o- o5 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& B% Y# Z! D* G0 {( x3 x
VariantInit(&pokeVariant[1]); 5 P* x# u3 I. e& Z' M W/ o0 { pokeVariant[1].vt = VT_BSTR;( G1 Z/ ~/ p+ k- }& m
pokeVariant[1].bstrVal = itemStr;9 Q; Z: m Y0 _: s- K
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topicStr = SysAllocString((WCHAR *) L"system");9 S u/ D$ l; A% b0 V9 x
VariantInit(&pokeVariant[2]); 0 _% U7 a3 L% g, i
pokeVariant[2].vt = VT_BSTR;1 y3 u: t9 |! r! U
pokeVariant[2].bstrVal = topicStr;- S$ S7 I$ q9 H# D8 G! y" Q, C" M
% {. s5 Y! T$ A+ [" e// Set the DISPPARAMS structure that holds the variant. - u8 ]# ?9 Z8 E8 g8 {1 W5 c) q% ^/ f# n2 E) K# `* F
dp.rgvarg = pokeVariant;3 N% a0 u( j) }: x/ Y/ R
dp.cArgs = 3; 8 E* `* Y6 N* f; o+ {5 k dp.rgdispidNamedArgs = NULL;" c" b ?; P$ b4 z, n
dp.cNamedArgs = 0;/ S' `/ v% a5 B- @/ ^
$ E$ h- q, _% E) K# `// Call IDispatch::Invoke() ' [6 Z) Q" m( C+ V5 `9 F7 t . S! E! v" m y" j* { hr = m_pDisp->Invoke( $ F2 Y( R& x, i4 n' } m W pokeID, ( y# N# R9 e6 N' n8 o IID_NULL,9 D+ s* o6 ?# c" O
LOCALE_SYSTEM_DEFAULT, " J* @) ]" `7 V4 S DISPATCH_METHOD, 2 N7 f* P8 C2 n &dp, 7 u5 C1 K1 T# q; _6 K NULL,. a/ X4 m! |4 J* \0 w. u# m% f7 j
&ei, 6 F& P- e% [4 l+ a6 x &uiErr); 7 o* R9 i- H f8 g. P+ K+ w2 g9 G6 H7 @( f' r
SysFreeString(topicStr);7 @; s/ _4 X6 w! u3 G
SysFreeString(itemStr);) m% L' Q( e9 E. k- U+ e7 E
SysFreeString(valueStr);1 y- A; E$ L$ E& q% K
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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???! e* e, Q, B9 K. a" H
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 {- h) b8 A W6 @8 @$ D8 X3 ^) K% v2 [9 ~7 W- [ f1 {$ ~, F
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2.这是request的程序 : V6 r8 @, l7 F// Request a value from Extend, n- z2 V$ t+ I: I3 o% M' f$ ^
//# ?8 _6 `9 |9 c6 p$ }: p' m* o! o
// Initialize the variant that will hold the BSTR. Set the variant's 6 L6 t# W b& l// type flag to indicate the fact that this variant holds a BSTR. Place the * s7 b) x: W# Z5 P// BSTR into the variant structure. 9 B- C4 T' k- k- [! o1 k) l( L ! Q0 y& l6 u1 h9 n* ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) ]+ ~4 ^6 i2 {% y) z' X9 T1 v
+ U$ H5 K- n/ t2 F3 j- ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 D+ H; P/ M; W/ F5 b
VariantInit(&requestVariant[0]); ( W. s' S0 {/ H
requestVariant[0].vt = VT_BSTR;6 k; \: ~6 c8 r1 X# f" T
requestVariant[0].bstrVal = itemStr; . H% J$ Z' u; V5 J `4 E) D+ B& Q8 Q- Z7 i- S% t) Q `0 y
topicStr = SysAllocString((WCHAR *) L"system"); 1 Z* ?, z A @, X- _! X VariantInit(&requestVariant[1]); - \; H! f' A* @5 B/ e4 i% t7 T
requestVariant[1].vt = VT_BSTR;( h& b% d) t C0 Z. w1 R$ H2 |
requestVariant[1].bstrVal = topicStr; ! U# `) m- ~5 o/ P8 L % M1 }/ u, |+ @6 r! X// Set the DISPPARAMS structure that holds the variant.8 s _0 `( W/ L% b- b# r+ Z% ~ u' p+ Q
- J' Y$ @: v% ^ k0 z dp2.rgvarg = requestVariant;/ ~% L Z4 s- f. _( g. k' H
dp2.cArgs = 2; 9 A- m6 _) S# n# x; k, x dp2.rgdispidNamedArgs = NULL;- u. Z* v) |) e- J4 Y
dp2.cNamedArgs = 0; 9 U4 Z% S$ k+ A7 M$ i. u D7 F9 n9 S
var.vt = VT_EMPTY; : m0 s( B) q5 |% a 0 j7 l2 ^6 B! h, y' D// Call IDispatch::Invoke() & P! \$ Z8 ?& q3 E* q }( i 1 T: z. E$ E! \' Z" H# {& C hr = m_pDisp->Invoke(7 k3 c0 {. d+ d- r
requestID, . F- a/ V( \& K& z IID_NULL, 9 n$ d1 i# v* h) p% l LOCALE_SYSTEM_DEFAULT, + E) y: H2 A, g: b. ~5 g DISPATCH_METHOD, 5 G% J% @ Z2 N7 N &dp2, % N3 g& w: |) J% Y( f &var,; V# z5 j! Z2 p& i; F W0 M: `
&ei, & z( G9 M: V! S& F &uiErr);4 g2 g; X; B$ z8 x1 l
& o8 g7 E: Q8 \/ t0 z* I SysFreeString(topicStr); 4 I6 G( I- J2 F: \" x, ]. p SysFreeString(itemStr);2 {3 }0 c7 Y! s- j& p; c" s" d. L
请问该程序是获得extend里面的哪个值? + C$ ]$ i# p. N6 K* U, ~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????