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:8 `0 L* R4 P% [
Name = (WCHAR *) L"Poke";, `+ g0 v4 m) I- H: V9 _
6 j0 @: y: L: ~' v/ x* Z- F4 @3 r4 c' {2 S hr = m_pDisp->GetIDsOfNames (( B+ C, F- b1 l" l6 ~
IID_NULL, // reserved7 T4 A9 V7 c$ t# W, t
&Name, // Array of names to get IDs for9 D: F1 y- B- h! L# V
1, // # of names in the array / Q0 V0 B6 e* ]3 C( D LOCALE_SYSTEM_DEFAULT, // System locale/ k9 I# w/ B% p+ \
&pokeID); // Array of IDs to fill on output: M% _8 U$ b5 x$ R8 n
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if (hr)- ~" n1 B4 u1 N) X+ X2 \
{ 3 a) \/ Q! P! }& G; \ MessageBox ("Get Poke Unsuccessful");$ S. h: q3 Z8 b$ Y/ e
return;; B' v5 y5 B" x3 B0 E e
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/**************************传递数据给extend**************************************/& ~. r; ~ R1 {. z4 X i; u; e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 P- n8 z. Y2 D# a" k" o
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 s- P7 h* j1 ~* g0 ~ VariantInit(&pokeVariant[0]); ) b8 O: B* G) w. M3 H pokeVariant[0].vt = VT_BSTR; 7 M. s8 Z+ f8 S, v. q! c0 t pokeVariant[0].bstrVal = valueStr;7 _; R9 a, m" j
$ e# L( {$ [; V4 R- B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : m7 Z6 c; [1 v# T \; i VariantInit(&pokeVariant[1]); _) r2 u" }1 R4 U pokeVariant[1].vt = VT_BSTR;. x8 K- a" m2 j3 Y! [3 C* h: f5 K
pokeVariant[1].bstrVal = itemStr; $ m6 @3 @& M* u7 J a+ g, x- [/ Y% T. n, |' ~/ v0 G
topicStr = SysAllocString((WCHAR *) L"system"); 6 a6 J# `- [( v# f VariantInit(&pokeVariant[2]); ) R6 D1 M$ Z$ ~/ [5 ^3 k3 \ pokeVariant[2].vt = VT_BSTR; * I$ t! J+ k. l pokeVariant[2].bstrVal = topicStr;- r4 \) M+ N& m2 C! h6 t
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// Set the DISPPARAMS structure that holds the variant.3 T' c- v/ }% g2 u% g( W
8 r& J2 {. M4 I5 F V dp.rgvarg = pokeVariant; ' L0 C: s L) O# ?( a) |/ x dp.cArgs = 3; ; t; L) K1 B, g8 |; t8 S' s5 W9 @ dp.rgdispidNamedArgs = NULL; 5 w% f# J6 U4 ~( \4 `3 B" J9 k dp.cNamedArgs = 0;3 k! {2 I6 H4 r
- `7 o9 k7 {6 U; d// Call IDispatch::Invoke() : T0 C6 F3 U! n, I / E. G7 s! s8 l- W6 \1 D6 Y, x2 i hr = m_pDisp->Invoke( . i6 y. a! `) p+ |7 i4 A) u( P pokeID,& j/ z" n& N9 E/ `8 H
IID_NULL, & X" ~0 N( S% a) G p/ A9 {. r LOCALE_SYSTEM_DEFAULT,/ u8 u* D% |1 T% n, z: T
DISPATCH_METHOD,% Z) ^! V! N! k& P, h; j* z* b2 N2 C
&dp,* v0 ], P: i. x) f: m3 P) k" V# V
NULL, $ n1 C2 U0 S. Z! P) | &ei,' A, v; Y; I7 Y5 Z8 O
&uiErr);) B/ R6 g) _0 S) n
4 g; x6 ] E4 z5 A9 @0 U. h& A: t SysFreeString(topicStr);2 w1 V. K3 E N5 j. v/ m
SysFreeString(itemStr);. o9 k9 ~+ F2 R& z: H
SysFreeString(valueStr); % y; s0 w4 f' I. K- S- X : _7 N( W! D( I& H/ h6 t9 |! o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??? 5 j! i) X/ U; O' H$ d. C2 }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 Q& V( g! J2 \9 u' A0 G6 g4 l 4 D- G# \- T$ E0 Z9 q M; G) g; H, @
2.这是request的程序 ' ` B# C2 S, a4 K, z; l// Request a value from Extend! C9 z2 U3 G! l5 B% p* F( {; d
//" V( T& c: _% w m7 k- q' t2 I( I
// Initialize the variant that will hold the BSTR. Set the variant's 4 X0 B7 L0 p# [) \. W( A4 n* @# y3 d// type flag to indicate the fact that this variant holds a BSTR. Place the & v$ S- b) ~' H: {& ^( G; h( Y: b// BSTR into the variant structure.' O2 T3 d/ L1 Y
$ b5 D" q$ e" s# P0 p requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " r& A9 a: u9 J : J6 N6 V& @% J& s% F% E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% e, {: _& y$ o
VariantInit(&requestVariant[0]); 4 J8 C p. v: W: W6 M; i3 C
requestVariant[0].vt = VT_BSTR; % X" R$ q' m% g7 l/ s requestVariant[0].bstrVal = itemStr;% I9 z5 s; y. O8 G. Z3 b6 Y
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topicStr = SysAllocString((WCHAR *) L"system");1 {2 y3 v5 u, u0 h5 R' J( M9 o
VariantInit(&requestVariant[1]); " O4 M- V8 N6 T6 ]6 A- w requestVariant[1].vt = VT_BSTR;( _, G' t; V* {9 E! k1 E" ^
requestVariant[1].bstrVal = topicStr;& z: N$ f' l. s! h( g9 _
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// Set the DISPPARAMS structure that holds the variant.$ a% x6 v$ ~( V% p
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dp2.rgvarg = requestVariant;% `1 b5 b9 y* @; I0 E# t6 j" x0 _
dp2.cArgs = 2; , d! z! B7 D) Z& @& j7 | dp2.rgdispidNamedArgs = NULL; + @2 `# s, h3 v' T dp2.cNamedArgs = 0;2 @3 l& |2 T p+ l9 t
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var.vt = VT_EMPTY; $ r5 {' l8 k4 {0 O' ^6 i: \$ t* r9 U0 V/ |0 X! l4 j
// Call IDispatch::Invoke() 5 H: C- }" k* Q; E$ {" `& a7 u. |# T9 \
hr = m_pDisp->Invoke(5 X8 _$ l. x" A3 W/ C
requestID, 5 T& e1 t `- K% x- o) c IID_NULL, F- g6 V) b, J( g LOCALE_SYSTEM_DEFAULT,/ I$ s. |0 g2 _* s( S/ f2 m
DISPATCH_METHOD,0 I7 K" E ?7 d9 Q1 i
&dp2, 0 f. l: _2 l, p2 d* p. {# C &var,/ ^2 }# B0 n _2 L3 \% w1 P3 e
&ei,5 c4 _% b) f; u7 V5 l2 f
&uiErr);: b6 e& X5 k' ^
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SysFreeString(topicStr); # ]0 c/ U8 P W0 K. c1 E SysFreeString(itemStr);- h% N6 v% t4 V
请问该程序是获得extend里面的哪个值?/ k ^ T j; k* `2 w- S
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????