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:! \( S+ o8 D; {6 z
Name = (WCHAR *) L"Poke";/ ?0 t+ g& E3 x) Y% G
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hr = m_pDisp->GetIDsOfNames (" y" i; X1 i& c( A5 x. p
IID_NULL, // reserved# S/ p* C, S5 `7 b9 H1 f: M
&Name, // Array of names to get IDs for , M6 F. y4 j5 T. k4 q5 {' V 1, // # of names in the array& O8 P$ E, P, t f/ f4 X# P0 N
LOCALE_SYSTEM_DEFAULT, // System locale6 \$ E& ?% L9 o
&pokeID); // Array of IDs to fill on output0 ^" g7 D. L) h/ K l/ }3 J [
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if (hr) / ^# O" F2 c: a) f {! ]! T. j- \0 ~1 u" |
MessageBox ("Get Poke Unsuccessful"); ; s+ p* t3 O: v+ \0 @5 Q7 F) m: x return;4 a S9 }+ V3 ^" m# i
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/**************************传递数据给extend**************************************/9 p% V/ r. a, E* y$ s. g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % `: f! L% t9 g 3 X, h2 g) ~- K6 s/ x0 u: m valueStr = SysAllocString((WCHAR *) L"1232");$ l5 A! x- b- v; b5 c
VariantInit(&pokeVariant[0]); $ z$ Z, Q( V! k. F6 M; v
pokeVariant[0].vt = VT_BSTR;7 m$ c! M7 A& @1 X% h- c
pokeVariant[0].bstrVal = valueStr;6 ]) }# L3 C5 U# H8 B
3 A) w; Q, L9 p2 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 c% V( R) d, O" d! v. U
VariantInit(&pokeVariant[1]); ; l; f. ]2 H+ o& o* U6 m
pokeVariant[1].vt = VT_BSTR; + q" ?7 K; F7 t4 N1 O% n$ i$ V3 W pokeVariant[1].bstrVal = itemStr;0 m, n& j$ m* U
5 [2 l# M; w$ [8 c' Q+ w! F, u+ Y; U) d topicStr = SysAllocString((WCHAR *) L"system");. L5 I* ~$ {! X [2 r0 V
VariantInit(&pokeVariant[2]); & B7 M1 i3 v$ G2 u
pokeVariant[2].vt = VT_BSTR;6 t' h6 C) i8 B5 c$ v6 M* Y
pokeVariant[2].bstrVal = topicStr; . u2 q* B* h# F6 ?: k/ M% ^ . j8 ]4 |# a& F// Set the DISPPARAMS structure that holds the variant. " o/ w {* Y, k- S# x0 o1 M; u8 g6 R) o& z* s. v5 {7 \
dp.rgvarg = pokeVariant;8 ?0 X0 i6 N1 T- ~! B& p4 o5 ?9 P+ K
dp.cArgs = 3;1 E& [+ u J( _) C
dp.rgdispidNamedArgs = NULL;8 M: X+ b2 P' g5 z, K
dp.cNamedArgs = 0; 3 k' ~0 k! r# V. o + g4 }+ ~, x8 g// Call IDispatch::Invoke() 6 B1 n, h1 Y; A/ G 5 U" \$ o8 S, W e8 ?- ]" g" Z hr = m_pDisp->Invoke( . h" B/ R* C m; K9 O pokeID, / i! v$ E/ R! u, { F7 ` IID_NULL, ; E' b* t4 f u" C& m ~ LOCALE_SYSTEM_DEFAULT, - y5 |& U4 O; R/ i! N/ q$ d3 | DISPATCH_METHOD,- y+ Y8 ?3 X5 W/ @- n4 V! i& x
&dp,/ y' h: C# ^! Y
NULL,3 Y2 g H5 V7 U6 S* F6 N
&ei,' w$ H* d& B! ?& s- o7 r
&uiErr); + o. ~; p4 i+ L* p' d0 O! C# [ _7 K2 `9 k, V8 y
SysFreeString(topicStr);8 D% ]+ L" j" ]7 I6 [- {
SysFreeString(itemStr);) D( _2 z4 J( h# F1 `$ i7 {
SysFreeString(valueStr); ) {/ G$ {2 Y# U/ }% h6 M$ h8 d) u2 ?- R/ 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???, v! `0 ~5 [+ i8 B" t
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???? : ^" }# G" M7 h* t) g$ ] 7 N" j) g- E9 D, b/ V 3 o2 W( C. J1 n d, }2 l2.这是request的程序7 q8 s5 i" f& @9 ?7 j1 J
// Request a value from Extend, r' f5 F6 w' k8 U# v
/// S& a* f- F5 c* x
// Initialize the variant that will hold the BSTR. Set the variant's+ k6 T7 {* {# T
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 D' X: h4 R% T// BSTR into the variant structure. K, ]! p- h4 X$ t7 O- o# {: |4 ]' Y# @3 P" k
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ h5 Q+ k/ E/ Q. W. q- f6 U2 S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ ~" U8 A. z ~3 G) o2 H
VariantInit(&requestVariant[0]); 8 J8 s) e \" ]7 _0 c
requestVariant[0].vt = VT_BSTR; : x3 ?2 M) s' V, c8 S e& i requestVariant[0].bstrVal = itemStr; 6 `3 ^( f# K$ @/ f! b H7 h9 }* }* v& A5 L7 S: K, I
topicStr = SysAllocString((WCHAR *) L"system");2 h& [& e+ w6 N% C6 |
VariantInit(&requestVariant[1]); 4 b1 l) T9 m U- q% y% `
requestVariant[1].vt = VT_BSTR;/ V7 [) D; |5 ?# u
requestVariant[1].bstrVal = topicStr; ; ^$ n6 C* c) I7 {. ?# _5 s8 v4 H2 d" {( [: m
// Set the DISPPARAMS structure that holds the variant. - f9 i$ R" }% e5 Z# F+ l- x/ w 7 I! n; g! N9 ~2 H9 H* X dp2.rgvarg = requestVariant; 3 c* }% \/ J4 @; E3 E7 M dp2.cArgs = 2; ! d g0 g |6 T0 [4 ?$ [# d+ z" g dp2.rgdispidNamedArgs = NULL;* R. @' [' j$ D2 H4 s
dp2.cNamedArgs = 0;4 L' X( T, a6 W! a8 D
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var.vt = VT_EMPTY;0 A" g4 [* Z0 x+ _3 Z, C- e
0 `6 |% Z( v4 ^# I8 H2 L) n5 y// Call IDispatch::Invoke() . [ ] Q; Q4 G1 ^ " o4 ]" E6 r+ _( \- {( e5 w hr = m_pDisp->Invoke( $ a6 \: i9 F8 k2 h1 ?2 n4 ~6 w requestID,! Y) V+ U* B4 f: r
IID_NULL, : n9 O; u+ d' i4 { LOCALE_SYSTEM_DEFAULT,1 @" R/ ]% }& f0 o; ^$ V
DISPATCH_METHOD,9 L H( X7 G4 k" _4 J
&dp2, & R; b9 H. z; J7 e; G h: q &var,0 L) l# `$ U% u+ H; R
&ei,/ s, }/ }5 i+ }% v# X
&uiErr);2 K" ~0 n( J8 J1 n4 W; P l
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SysFreeString(topicStr);, l9 C. [6 o! }& T
SysFreeString(itemStr); 2 R4 ]6 r2 r" y: `7 R2 {! y请问该程序是获得extend里面的哪个值? G ?- g' v: J9 @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????