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:9 ]5 W- l3 E* U
Name = (WCHAR *) L"Poke"; % \1 G2 ~$ Y; v2 G" B0 q4 G : \$ r8 x$ F( o. U$ T5 k' `
hr = m_pDisp->GetIDsOfNames (- U8 s" s1 p' H6 ?0 N, P
IID_NULL, // reserved 7 @1 ?0 N7 a0 w8 U, { &Name, // Array of names to get IDs for + E& t8 N' `7 ? 1, // # of names in the array 5 ^% I" `$ Y c, o# |3 W# f LOCALE_SYSTEM_DEFAULT, // System locale3 s& J9 A. b4 K. {, W
&pokeID); // Array of IDs to fill on output% J9 }! F( V9 a3 L$ H0 o
1 t* V" S/ q% R& ^+ p; ^
if (hr)0 `2 z* A/ C, b }+ x9 p- h! X7 z
{ 6 t$ E! k) H# q9 c3 W MessageBox ("Get Poke Unsuccessful"); & I* [# V' I$ s% @ return; 3 \/ X' g' k5 o! M) B1 v! E } + _" h9 U k! x/ X3 q& t9 t$ C, G$ G' ]+ h( {" i; Q
/**************************传递数据给extend**************************************/1 w+ [9 t, ]2 s6 a) B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# {+ _$ @5 l7 @6 @* u5 _; j* m; B
. V3 b, g" g% b& H. f5 @( W. k valueStr = SysAllocString((WCHAR *) L"1232");6 O6 c# o0 b/ f4 B M) t, R
VariantInit(&pokeVariant[0]); ' [1 f" N" J( \( A4 v3 d* r$ |" \ pokeVariant[0].vt = VT_BSTR;6 Z+ r- Z4 _! j0 D% g4 S0 Z
pokeVariant[0].bstrVal = valueStr;& i t' G* ]. H% L, ^6 `5 K$ X- s
* B& r$ q/ w# [2 f/ A& s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* E8 K' d+ W6 O6 h7 k
VariantInit(&pokeVariant[1]); / f% e/ r; X+ D" z, O! q% u. Y6 m pokeVariant[1].vt = VT_BSTR;% D3 T1 i# v) @* @6 [
pokeVariant[1].bstrVal = itemStr;" X5 @5 x1 t' B$ n1 M( @! i
( P( z& y. G1 h! h
topicStr = SysAllocString((WCHAR *) L"system");! H. _7 h; Q" r1 |5 L
VariantInit(&pokeVariant[2]); - \4 x; S7 {) s2 j7 E2 z6 z7 O3 T pokeVariant[2].vt = VT_BSTR;6 R, \/ y6 F; O
pokeVariant[2].bstrVal = topicStr; 0 D7 B9 u& p) |( n; T+ b' m1 G( S- l5 l6 e3 a
// Set the DISPPARAMS structure that holds the variant.: n0 ~3 R3 ?" M9 T0 @
6 e% r, ~/ O( @ dp.rgvarg = pokeVariant;) U. I( }& V6 T/ g( J3 x
dp.cArgs = 3; $ {% k6 A0 m/ I dp.rgdispidNamedArgs = NULL;# q7 x, @; ]6 a4 S, l
dp.cNamedArgs = 0;3 n$ E( Z' {+ M7 u9 I3 t
( |4 {" Y5 e# T& q3 a6 t: P
// Call IDispatch::Invoke() & ^% c; ^" U7 H! v2 v$ A. h" [9 y0 O $ T( l. ~5 B9 t5 R hr = m_pDisp->Invoke(! u; Q1 m; I1 ^4 D+ T1 X( R" d3 E! p
pokeID, 1 Y9 e# `( R) y; a5 T3 o. R IID_NULL, 6 J& s2 {$ q3 j" x3 u& i LOCALE_SYSTEM_DEFAULT, ' T. f+ P: i9 Z" d3 X) A DISPATCH_METHOD,, K* \ o- R$ d: \ v5 q- |
&dp, , z) Y. S" V7 ?7 G+ w4 X4 |* G$ m NULL, ) p' g4 j# \6 [3 k6 [% L &ei,& i. V7 c; ^1 G+ ~6 n% G
&uiErr);/ I( R- Y& I8 D/ r M9 q. D3 K
: ~: V% z- S& `+ X' N/ I
SysFreeString(topicStr); : W) z$ ^$ I5 ]( r$ M2 X" \ SysFreeString(itemStr);$ a# W4 h& B0 Q. O6 z z. U
SysFreeString(valueStr);2 t9 F- Z; ^5 I( Q6 A# S$ k7 o
1 {& F+ w( ~7 _- H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???: c7 F% o$ c5 R3 x( G3 U
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???? 2 r- _ s& V7 b. Z7 s) Z 1 y* J7 H/ H2 B E! m* u # J9 z; Z% |2 F* u; b2.这是request的程序 : B( w$ ~3 K1 M7 x a& r// Request a value from Extend: R! {7 i( Z7 M3 H+ K
//+ ?" j' y1 P& b8 ~) A _
// Initialize the variant that will hold the BSTR. Set the variant's 5 x; Y0 E' n- l. J" c" M1 h// type flag to indicate the fact that this variant holds a BSTR. Place the" f2 Y( N; F! f+ {
// BSTR into the variant structure. 9 a5 }% F4 M0 I% C, N* ^7 \ N* V2 E ? ! E, C2 u [( @' W; r; T7 ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# ?4 R; k- h0 x$ g! r/ D
2 O! F0 t0 _- f/ K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / l. j0 N' L5 N. W6 | ?9 W VariantInit(&requestVariant[0]); % f" L* O* U/ k& r requestVariant[0].vt = VT_BSTR; ; t0 |) U; Z0 d1 @0 C. ] requestVariant[0].bstrVal = itemStr; . r" c3 W9 p; A8 y# R% z& v+ t, k u% {$ M% C
topicStr = SysAllocString((WCHAR *) L"system");4 V# S3 ]; \9 f5 f
VariantInit(&requestVariant[1]); ; `8 b( i7 o) w& |, V7 B# e requestVariant[1].vt = VT_BSTR;8 {+ ^' [) t7 q9 K! h o! ~
requestVariant[1].bstrVal = topicStr; 3 r# m) X. Z2 c! Q. P# M* B. }( p5 A/ N, a8 C1 |. y( F) W6 M. z
// Set the DISPPARAMS structure that holds the variant.! U* ]; \5 N" ^5 a: v5 O W
: ^- R% A# t+ m2 j2 O6 Q dp2.rgvarg = requestVariant; $ G9 g% C' Y1 K6 Y8 m1 c dp2.cArgs = 2; 3 h( ]- w/ E# Q' W+ k9 U dp2.rgdispidNamedArgs = NULL; 6 [7 D2 e4 A8 E: |7 t# V dp2.cNamedArgs = 0; 1 U7 v+ i5 C0 s% ? m4 {* }* m& Q
var.vt = VT_EMPTY; 1 n, ]0 k/ T! x/ E. K 3 K8 E' q& C' F# l// Call IDispatch::Invoke() ) N$ S% J# I, f; z% A4 M9 M# Y# g" H9 O5 i, D& V
hr = m_pDisp->Invoke(1 b4 X' X1 U* ?) D0 C2 I
requestID, c7 K$ ~2 o {+ ~: @ IID_NULL,. a- r) L9 M. D" {$ r0 K7 N# m3 W5 p
LOCALE_SYSTEM_DEFAULT,7 f3 ^0 |1 {) n* p
DISPATCH_METHOD, ) V7 j# T* s9 H! I &dp2, $ L. |. n, j8 l/ L+ O- ~5 ]% ^ &var,1 @ s- Y0 H! j! `: P- J
&ei, 8 z# u; A# |/ B& f: s- l2 O &uiErr); ' U: K; r# F% m: r2 Z( q6 H 7 v. a3 r } a. b4 e SysFreeString(topicStr); 0 V4 S/ N& K: e) v SysFreeString(itemStr); ! X8 y; c1 A7 g9 u. V请问该程序是获得extend里面的哪个值? , F: A( q9 A1 J' w8 l5 [2 ]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????