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: b# i' p# P4 Z1 b0 IName = (WCHAR *) L"Poke"; $ h' ^3 R& Y+ z# u/ b / V4 K" h* p" [9 ? hr = m_pDisp->GetIDsOfNames ( + V. ]+ T9 g( j9 k IID_NULL, // reserved7 y3 V" b4 M j# V5 q6 z6 |" J
&Name, // Array of names to get IDs for 4 v7 a6 l \- n 1, // # of names in the array % d* x6 b7 L; H* X, x8 c6 m LOCALE_SYSTEM_DEFAULT, // System locale 6 O" F/ J2 ]' u: @2 ~/ j( F &pokeID); // Array of IDs to fill on output & }0 |" i6 R6 _' y, i0 A0 ^* } ( D' y4 p) K, @, ?
if (hr) 6 Q$ U( ^3 T. e {2 }& y" {' Z! p+ D
MessageBox ("Get Poke Unsuccessful"); * I$ V7 ~9 L9 u+ N" ? return; 9 a+ \/ Y( [0 t* B# E } 9 |( i/ b9 H+ V( W) U% f 9 e5 m" l/ w; H l$ ]/**************************传递数据给extend**************************************/ $ H' H: Y* @0 o) X$ {! U& s( l7 ~5 L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' m& G8 f/ q( a/ M) U% l 5 m, {' j0 o a0 U valueStr = SysAllocString((WCHAR *) L"1232"); + u' J1 x3 `' z) W# \2 D VariantInit(&pokeVariant[0]); 4 Q# e6 }9 O% ~) n. S+ A
pokeVariant[0].vt = VT_BSTR;( f0 Z4 O8 R% q& e
pokeVariant[0].bstrVal = valueStr;/ T" |1 v- H" O( W" C5 _8 k
/ k7 b$ G- Y; w T# X8 K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' |+ M" r" v9 J# C- T1 p e VariantInit(&pokeVariant[1]); 2 N G" [) o1 ?# B. ^) V- q
pokeVariant[1].vt = VT_BSTR; : c9 C; h* {! L( t# Y' e! S; a: p pokeVariant[1].bstrVal = itemStr; {( T! v; p! I# f* e3 ~! T8 A; A3 P# Q- @! q; \! }
topicStr = SysAllocString((WCHAR *) L"system");8 T9 c( f; P4 Y. f2 b* j& e4 i
VariantInit(&pokeVariant[2]); 7 r- I \' l" J. V/ ] pokeVariant[2].vt = VT_BSTR;+ E; ]/ @9 [7 T1 [( \
pokeVariant[2].bstrVal = topicStr;% w- C+ l8 y9 @# z
3 {9 |9 w3 p3 E, R# b' I) K// Set the DISPPARAMS structure that holds the variant. , c% T- T, A9 n! M. C6 S. s+ S 7 D" X2 m# D _6 w. x dp.rgvarg = pokeVariant;: N# u* |# P3 v2 g
dp.cArgs = 3;4 W9 B- v3 x$ ]& K" d
dp.rgdispidNamedArgs = NULL; 8 |6 s0 Z" M1 M) N4 W7 S dp.cNamedArgs = 0;$ X$ Q& |. K! U! z X7 z
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// Call IDispatch::Invoke()6 F2 Z4 R% {2 T& U" N
2 O! r$ Q: u+ k( @, d, A) x! V hr = m_pDisp->Invoke(2 r' g+ u0 k; Y( x; f2 W0 p8 g; l
pokeID, 4 V1 c% b$ K& [ IID_NULL, 3 l F5 _5 k* N LOCALE_SYSTEM_DEFAULT,; h+ p! Z- \# G9 K
DISPATCH_METHOD, $ s8 z; U! e* j' a, O& B &dp,% l. t7 ?! B6 U$ M
NULL,, w- `' D& A9 w4 p0 R3 g
&ei, : k. G l2 f1 c &uiErr);1 i% R! t1 P& @% ^8 W9 D
: S( [, m, E6 P: r H2 u- H! F4 e
SysFreeString(topicStr); 8 ?; c4 B# d0 M SysFreeString(itemStr); F. ]1 o: i& H4 H0 K SysFreeString(valueStr); * `& [3 }$ x9 Q# K9 f . \/ H; {- d+ R s D1 l1 B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??? 6 i3 p5 C8 A2 y, x9 x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????! d0 Z! Q/ V! O+ ]" p- @7 N% R4 O
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2.这是request的程序9 v- g& n3 O% f7 L. W
// Request a value from Extend Q/ ~( j2 ?" r; d9 p V! z8 g4 Q2 Z//; E! @$ n G7 n
// Initialize the variant that will hold the BSTR. Set the variant's # Q8 E/ C: q# K7 o' P// type flag to indicate the fact that this variant holds a BSTR. Place the % L7 y1 a+ s3 w! C// BSTR into the variant structure.7 J% |+ E8 k/ w4 q
4 J$ ` o j1 u$ l/ v$ g6 H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& L- m; }% r9 A& e9 ?
7 a5 k s8 V# U5 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ Q6 R, y2 ~" \" H6 t; N
VariantInit(&requestVariant[0]); - l. Q& x3 C ^* b0 F requestVariant[0].vt = VT_BSTR; ) P/ D# p# D t requestVariant[0].bstrVal = itemStr;9 \ y" C. h, ^
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topicStr = SysAllocString((WCHAR *) L"system");! a/ e$ j" i' ?7 y8 H( C
VariantInit(&requestVariant[1]); 7 k; V8 n2 q# ?" l& A
requestVariant[1].vt = VT_BSTR;: ~ }5 i5 H s; c$ N
requestVariant[1].bstrVal = topicStr; ; n; C2 X$ @/ V6 C. Z9 _1 N! J # F$ f/ {8 w) C* P, y+ [. Z4 f6 ?// Set the DISPPARAMS structure that holds the variant. : N* D" v6 g( N" K8 R6 s& a& c7 R4 x1 G# r9 \* b- H! g( z
dp2.rgvarg = requestVariant;- _1 j' \+ a% H6 u, Z
dp2.cArgs = 2;5 h/ m+ `% u+ w3 X0 p* Q4 K0 j. D
dp2.rgdispidNamedArgs = NULL; 9 w+ K1 @( C' X dp2.cNamedArgs = 0;6 u6 s5 A b: w" s1 x. P
" n F, ~4 N+ Y/ \
var.vt = VT_EMPTY;9 N g* I1 \& u
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// Call IDispatch::Invoke() 0 D( O' e+ ~6 a1 y+ A- R0 o3 h) [ % ?: M6 Z8 ]7 q, F+ K+ u hr = m_pDisp->Invoke(, I2 f4 q9 k$ w
requestID,! S' j1 p: V1 j% c T
IID_NULL, # m" C( G f0 k LOCALE_SYSTEM_DEFAULT,# I: s" R( e* e
DISPATCH_METHOD,; E" N8 @# @' p" v1 q
&dp2,- @( s' I/ i( b$ x9 `
&var,) p, f) W8 g( j t, G- h
&ei,3 J4 \& a; K8 w' ?
&uiErr);& `3 w2 U x7 Q+ w1 r* d! ?
- U6 y; I4 @9 p% _% g( X SysFreeString(topicStr); ) H- T7 f0 Z/ |& U- U SysFreeString(itemStr); 1 ?# G2 e A/ C$ U请问该程序是获得extend里面的哪个值? / K4 z: R1 m, J% K5 I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????