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' X; Q" I. C0 xName = (WCHAR *) L"Poke";9 ^; n; r. f- s [6 ~& ~ y
3 y2 n% |& F% ~& E. H0 v hr = m_pDisp->GetIDsOfNames (4 M: F l9 T9 d) r
IID_NULL, // reserved& h8 @# y2 x' A5 b! N v% U
&Name, // Array of names to get IDs for% M0 R1 F2 O& r- a( S# j/ z
1, // # of names in the array7 [2 @& _9 {1 K
LOCALE_SYSTEM_DEFAULT, // System locale - [: Y* V# x& O7 |* m! ?% I3 [! u &pokeID); // Array of IDs to fill on output2 W! {5 d/ z( W
% w9 _/ `; i8 t1 P if (hr) ' W! t/ W. z; A {2 m9 O0 N! f0 u8 a: B
MessageBox ("Get Poke Unsuccessful"); 0 F: J4 Q6 N9 }0 c1 f0 n return;3 ], [% @+ m3 f; e
}2 \7 X4 j# u9 Q' W$ L, I
# C" w6 v0 u4 w, i" @0 K/**************************传递数据给extend**************************************/ - f& {: _' s: G1 Y) O1 {, h pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" y( t E4 A- L9 k8 a( D
$ t% K1 ]( }! ~% s; R+ V3 _9 P4 Q \$ s
valueStr = SysAllocString((WCHAR *) L"1232"); ! s6 O1 D$ K1 X! W4 ~ VariantInit(&pokeVariant[0]); % F v( Y8 t* d! e; M6 H pokeVariant[0].vt = VT_BSTR;) E6 t( ~* o: _. R
pokeVariant[0].bstrVal = valueStr;. N% \7 c. e& p5 e$ j) S
' g& G F0 }" o* ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 J5 c6 `2 g5 g, F) r VariantInit(&pokeVariant[1]); 4 c& X9 F$ S7 _ pokeVariant[1].vt = VT_BSTR;: g% T `5 l* o B6 k# T. X# r
pokeVariant[1].bstrVal = itemStr; y. P! l- J% u) R
R' D1 `. t3 f4 T$ r; M
topicStr = SysAllocString((WCHAR *) L"system"); ( y; \( V/ ]2 K. U0 c VariantInit(&pokeVariant[2]); $ u; |% ^2 }7 H9 b pokeVariant[2].vt = VT_BSTR;9 q% k2 [+ w; `
pokeVariant[2].bstrVal = topicStr;2 i% O" l! U/ `; q# r
' @3 p! f6 i/ I, s. A; k1 o// Set the DISPPARAMS structure that holds the variant.! R: ^. S/ f f% W! E9 m
6 ? w, O3 M) e2 f0 F2 W( @: N
dp.rgvarg = pokeVariant;7 ^( P* }' h5 [ d
dp.cArgs = 3; 9 }. {4 L# ^ I" X/ C' ~6 } dp.rgdispidNamedArgs = NULL;% |, S8 f/ q* Z9 ~% \! G/ Q4 k/ r6 H+ l
dp.cNamedArgs = 0; ( ^ ?# j- f- l( p7 H6 p; H 4 M! O( ^" _. A/ R9 W, C- Y// Call IDispatch::Invoke() 4 O9 I5 G2 n' A. i. F% I* p7 q" U, Z+ O( W' w
hr = m_pDisp->Invoke( ( K# R: L$ Y' |2 s% j9 n pokeID, / T' k! T$ X; E& W IID_NULL,2 r$ E. K% ]. W G
LOCALE_SYSTEM_DEFAULT,+ f: A# A* y1 m3 Z" O8 b& G
DISPATCH_METHOD, ) X% q* b! ^- D &dp,8 j+ T# v( B0 \8 a. r
NULL,4 q# m% J' G+ A5 z$ f* ~( w
&ei,4 v/ ]/ T" W8 a
&uiErr);& u' H* w# k& b2 f
1 @+ `% Q0 u1 D
SysFreeString(topicStr); # @' b. b) y4 G: D! K SysFreeString(itemStr); ; @0 S$ |$ M* g. {1 p' d- s SysFreeString(valueStr);1 {- z1 b* s+ s6 Z w0 X' z+ j
6 l/ M6 u' P7 [* y# L0 Z" a3 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??? ' c# ~) B& |5 n0 F& f% m- C5 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???? - ~: m6 b P8 q- q: K" R( z) Z$ ?, J
6 ~! j: [! q$ j3 V% ~: [2.这是request的程序 , {+ M! ^& \7 E- A4 W" ^// Request a value from Extend3 O9 \! O; Z: j
// * x$ }( f) [0 L; D' n* n7 K' N// Initialize the variant that will hold the BSTR. Set the variant's ; J7 e4 ]& v3 Z// type flag to indicate the fact that this variant holds a BSTR. Place the $ k6 R& @2 F2 ?8 } O! Y// BSTR into the variant structure. ! a) |' x% M. a6 i4 E9 q; U5 C3 d6 }2 A+ y1 j
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# H8 h) F: w. Z: W5 a9 @. o. B
: l; k# a# N& V, z0 V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) I% F% t; F# a+ B/ ?0 ~& r: v9 T
VariantInit(&requestVariant[0]); 7 V L; P- s: i( G5 p, C
requestVariant[0].vt = VT_BSTR;" A' r! o% u5 a; _) Z% I9 A9 M
requestVariant[0].bstrVal = itemStr;+ D9 A: m* `1 Z+ q# p
( U4 ]6 [- E0 t topicStr = SysAllocString((WCHAR *) L"system"); : n) ~ A/ I$ |+ [* _7 M7 i3 L/ b9 N VariantInit(&requestVariant[1]); ) x9 I. X* T2 {5 e( F requestVariant[1].vt = VT_BSTR; * @! Q$ }: o- H" K' H$ b1 ~, ] requestVariant[1].bstrVal = topicStr; , c1 \7 c7 w, x) s8 k ) ^- ?) t Q3 R! c' K2 Q7 E6 G7 G// Set the DISPPARAMS structure that holds the variant. ; {: S7 ^( O+ A+ V; p3 W# H2 H: V* i5 M! l3 F# A$ ^
dp2.rgvarg = requestVariant; % A7 u: p. k8 p: I dp2.cArgs = 2; 9 c, {1 l. K' ]( F dp2.rgdispidNamedArgs = NULL;1 H; }8 q1 Z& f4 G
dp2.cNamedArgs = 0;+ p9 o. ], J, C( { Z) V
; G3 L- i: K5 n1 i4 [1 j var.vt = VT_EMPTY; # t% L* J) W2 b& z 6 u! w w7 ^4 n1 t' m: N4 G* ]! Q// Call IDispatch::Invoke() $ w' L$ G% I0 J) n; d* c! [9 Q 7 a0 i9 m4 x$ s$ Q, b0 l# R; H hr = m_pDisp->Invoke( , @% A3 d0 O: F! T# ]" ^. f requestID,0 f$ {5 ?6 a9 O( J# n" G
IID_NULL, * T+ k# v" g {4 i: X7 U LOCALE_SYSTEM_DEFAULT,& s* F( f, U( ?! L- |# U5 r
DISPATCH_METHOD, , F* ^- e% z% e9 H8 } &dp2, 2 L6 m6 R p" Q( l1 ^9 I &var,5 A- k, k E3 Y+ M( h- ~
&ei,+ X/ X. X4 O" a% `1 O$ B* O
&uiErr);! r* A3 d N: i$ ^& V2 O* T) Q
; w5 A- i7 S) ?+ C' X; a
SysFreeString(topicStr); 1 ^9 C$ ]9 o" ?- B3 y SysFreeString(itemStr);: g" G$ |& i+ z7 |+ X8 W7 R" Z
请问该程序是获得extend里面的哪个值? ' X: T b% r5 y" \4 ^7 C0 a6 v* Q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????