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: ( y: f9 S& m8 EName = (WCHAR *) L"Poke";7 M# L: o: |6 F D0 C \+ m
8 z: q3 r( r1 y! } E; e9 {5 A hr = m_pDisp->GetIDsOfNames ( * d6 n' H6 G: d( l/ }& o IID_NULL, // reserved9 ?- g3 q; H5 p$ @
&Name, // Array of names to get IDs for 9 U' J$ x8 Z! ` 1, // # of names in the array: i) Z$ H" y7 ?8 d7 `- v0 C
LOCALE_SYSTEM_DEFAULT, // System locale , h6 j+ L* h+ T9 C &pokeID); // Array of IDs to fill on output }! J1 `5 H% k3 L0 s) z! R
5 _, L. i; V7 \2 ^ if (hr) ) A. d7 b, F) z4 a2 R, Z9 u, [ { : Y4 s- H8 V# F9 W MessageBox ("Get Poke Unsuccessful");7 l9 {% u, q4 f$ X# X( q
return; ' a' Z* d" d' |2 J. ] } 4 M' {) J2 h0 z, V3 f$ i# t1 t! Q3 P! L& G
/**************************传递数据给extend**************************************/ " a& `8 g1 p7 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) B. L% d0 Z7 W8 Z0 I - ]+ v9 x" b9 ^) K6 h. U2 `" [& T/ f valueStr = SysAllocString((WCHAR *) L"1232");, J t" I O. a7 @- Z& F: U# i4 E
VariantInit(&pokeVariant[0]); # o" @3 V+ q# k pokeVariant[0].vt = VT_BSTR; " |/ [) O$ J5 t: o! Z5 {0 S; J pokeVariant[0].bstrVal = valueStr;- B2 i! f' n9 G; H8 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' k. }% u T4 H7 O. h4 i- S) O* f6 e% T VariantInit(&pokeVariant[1]); . ?% l# Z$ q& N, N" X2 C pokeVariant[1].vt = VT_BSTR;% O6 C5 A9 j: l( l* ]
pokeVariant[1].bstrVal = itemStr; ' I, S1 Q# q1 O/ D# [- r3 q0 S* j8 g6 a
topicStr = SysAllocString((WCHAR *) L"system");. }" }) g5 Z- d( {7 n T
VariantInit(&pokeVariant[2]); 7 x- `. T" v4 H& u% {, O pokeVariant[2].vt = VT_BSTR;& L/ G3 L y0 S4 J
pokeVariant[2].bstrVal = topicStr;4 C# L! @% V; a3 Z, {1 `
* a( S, {, e6 Y; F5 {' q( r// Set the DISPPARAMS structure that holds the variant. 1 @; ^: @9 e, @; h6 x! r8 ?: s. p& m! A
dp.rgvarg = pokeVariant;. |9 g, F* X" E) H0 M `/ \
dp.cArgs = 3;7 N' [) O. ~7 f U
dp.rgdispidNamedArgs = NULL; 5 A8 P( ~( X C$ \& y8 u8 |9 X dp.cNamedArgs = 0;. E* w" Z$ ] C
% O* l$ @2 `. \5 B8 F" \* x// Call IDispatch::Invoke()* g: D4 q; a2 i ?+ i
7 c$ A# R( f& n& `8 j0 a: p hr = m_pDisp->Invoke(5 P: n% l* h% f/ a, G8 m/ q
pokeID,3 L0 _ C) {6 C1 b. m2 S
IID_NULL,8 ~; \7 W/ C7 c" D; r5 k
LOCALE_SYSTEM_DEFAULT,. K$ ~$ }+ K/ _2 r8 |7 k- r7 L
DISPATCH_METHOD, 5 d' f1 J* j' A8 x8 j1 S &dp,* p; ^3 ]3 n4 v: C2 X, c
NULL, # [1 g" U4 Z3 j# b5 ~ &ei,/ a! S3 m7 H+ q3 S) ?* e
&uiErr); U1 b v+ z* o; w2 H9 v5 m5 u7 B
SysFreeString(topicStr);* ^7 s4 C) O" ~6 b+ l8 V
SysFreeString(itemStr); 0 x% x3 z8 t4 h7 O1 F0 M SysFreeString(valueStr);' k0 ]1 o6 c$ ^: ]! p
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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???: G8 U! H" F+ X5 [) [2 B$ Z+ 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????( U* F5 G5 t' S+ G$ M
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2.这是request的程序 " y" U/ z$ ]8 y, E' U( L// Request a value from Extend / q5 d" A# ]/ U3 @) I1 j" O4 ^9 q// 9 H* | F$ ^4 `4 C) T// Initialize the variant that will hold the BSTR. Set the variant's C: V" |, b6 N: @
// type flag to indicate the fact that this variant holds a BSTR. Place the ! \ A1 I" S2 M2 h// BSTR into the variant structure.6 g; `& `+ | `. i, A8 I; |3 A
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " Z, [5 J' E5 l. y/ G) v! W ' B! b. `* _8 p% @2 E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 R9 _. d: s: K, }; F/ H VariantInit(&requestVariant[0]); ! N% z* c9 o2 z: D; F* q2 @
requestVariant[0].vt = VT_BSTR; ' l/ ~/ ~0 Q& A8 U# |6 z requestVariant[0].bstrVal = itemStr;/ {: `& V1 s+ l% ^, k, j
7 e' S$ F' r' _ n topicStr = SysAllocString((WCHAR *) L"system"); z# I# E( N m# i" |8 s VariantInit(&requestVariant[1]); 5 Y! v0 e1 \& j; Y \1 f
requestVariant[1].vt = VT_BSTR;! W' i4 |; N3 n5 L1 U% y) C
requestVariant[1].bstrVal = topicStr; 3 x, r2 A; H6 g! k0 ] 9 J6 }* m) Z7 n3 A D5 }4 U// Set the DISPPARAMS structure that holds the variant.) R, q3 N* p! |" n
- F! }/ c( f1 o- B7 b% c0 p N4 A dp2.rgvarg = requestVariant; 9 s( O4 H8 @, M9 ^' a' e! O( j# X dp2.cArgs = 2;+ \% P8 t' d2 D
dp2.rgdispidNamedArgs = NULL;; w! H7 [7 P+ p* F
dp2.cNamedArgs = 0; * _2 h' X0 x n. k ! h7 G# D4 I7 D w0 U7 F var.vt = VT_EMPTY;) L' o# e6 o7 Z0 _: Y
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// Call IDispatch::Invoke(), T) B: L1 M/ \& F% E6 N+ h
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hr = m_pDisp->Invoke(, K* {' t x. A" u# u/ M3 D
requestID,' u. Q6 `4 |3 l( @2 n% ^8 f
IID_NULL, / e* P8 X) ~6 @% T& ]1 P3 d: ~1 u LOCALE_SYSTEM_DEFAULT,* b; Y4 n* c! }) G# q
DISPATCH_METHOD, 6 M% Y( @: S; Q' h5 ^/ C8 j &dp2,* j" d$ f! Q1 {' T
&var, 0 w6 ~. [$ p0 |) N* {3 l% n &ei, 0 k; F+ y- k+ T# c% x &uiErr); 7 f( M# w5 L9 _/ [# v2 T7 b7 y& E3 P c- d; c" K
SysFreeString(topicStr); " r9 z- w! c* {1 t SysFreeString(itemStr); : c s' S x' p. m) J请问该程序是获得extend里面的哪个值?+ i: e" c2 p: v1 k; D" V- |4 U
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????