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: . P2 \9 G( E8 v, C8 ~$ J; @2 HName = (WCHAR *) L"Poke"; $ Z9 s1 x; D1 @) o1 ]; q * K# P6 V# i- p f$ a
hr = m_pDisp->GetIDsOfNames ( 9 Q4 n$ q6 k2 j1 K IID_NULL, // reserved . e9 G# H, T4 t# k d &Name, // Array of names to get IDs for 5 ~9 R% ]1 n4 S4 b U/ I1 m 1, // # of names in the array! E, k8 U" s9 Y4 h
LOCALE_SYSTEM_DEFAULT, // System locale& R' B' b. b( v' R1 m/ Z7 C. x
&pokeID); // Array of IDs to fill on output , ?3 h% F6 T: W - ~0 x5 ~4 l8 s7 F- b if (hr) & q/ ~8 I! c0 [! e% G9 M7 o9 ~& ~ { 7 K4 e: C& a; l/ N! @5 v2 V* u MessageBox ("Get Poke Unsuccessful"); * r: `# d2 D1 q) H1 C( {* E return; - l/ d# E; c E( ~9 {9 A }+ q, t( |$ G/ e4 |. D
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/**************************传递数据给extend**************************************/ 3 q0 `: M3 J, P9 Q7 V: s8 t) p0 L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) L: x; X- o* s W; \9 W " C0 W2 a9 O( [# ~3 h0 A
valueStr = SysAllocString((WCHAR *) L"1232"); ^- i$ j$ Z" \& s* S, T; }9 m5 B VariantInit(&pokeVariant[0]); & d' d! P7 b8 X0 |4 Y; m/ o pokeVariant[0].vt = VT_BSTR;- j+ {- b% E, m8 Y! @; _
pokeVariant[0].bstrVal = valueStr; ! p' K+ b( E( c& j! I4 i* R: s% X+ u6 `- P$ c$ C, ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " M4 {1 S0 W2 x3 I9 o$ b VariantInit(&pokeVariant[1]); ! U* k- H# s: B7 \9 S: o u pokeVariant[1].vt = VT_BSTR; 9 b4 m) N {! q" y* {. E/ V5 x pokeVariant[1].bstrVal = itemStr; 5 Q) w4 ]$ Z: t: T& I, g % z% Z4 o2 P$ L: N topicStr = SysAllocString((WCHAR *) L"system"); 9 M1 a. D. V- f' f VariantInit(&pokeVariant[2]); ; ^ W7 `' o7 {4 g pokeVariant[2].vt = VT_BSTR; $ m$ \6 E9 J j, J1 ] pokeVariant[2].bstrVal = topicStr; }" K; ^% o: \ 4 p9 o4 {" X% R! s// Set the DISPPARAMS structure that holds the variant.3 m1 S) ?2 w9 W" A4 H
4 n. s- a% v1 |3 V6 h& M2 \" } dp.rgvarg = pokeVariant;2 \4 f4 Y+ C. Z& C2 n$ K# U
dp.cArgs = 3; ( P3 m& J$ V# g: W- } dp.rgdispidNamedArgs = NULL;" Z5 L! l8 R7 ^9 F' N
dp.cNamedArgs = 0;- C$ [% o: B! B) c' ~
6 H3 @, r; w% w5 Z- U4 J2 @// Call IDispatch::Invoke()" G$ N4 q K/ y5 Y, j3 a1 R
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hr = m_pDisp->Invoke(* N Z: X$ f( C0 z$ @3 I+ C
pokeID, / i# C" y9 I, p4 c a$ Q IID_NULL, % _& _* W% W, l: B LOCALE_SYSTEM_DEFAULT,$ T2 c+ m% H7 Y4 u) X! _
DISPATCH_METHOD, 3 Z, h% c( H- j+ `" T8 P. M &dp,: a k5 e6 ]4 h5 k2 @: ^
NULL,& ]6 X) C, E* G
&ei, " N/ Z/ O; {8 E: ? B( V6 h4 e) @ &uiErr);% z2 C4 `; z& x- x
% `" U; P) Q" G+ A& }( {' V3 z SysFreeString(topicStr);% ~' }7 T/ X4 Z
SysFreeString(itemStr); 8 E5 O/ s# {$ C2 Y9 G9 R& L2 @( R SysFreeString(valueStr); & k9 P+ c5 M4 x0 I% n # U; h/ T/ i. @$ R7 O7 x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???$ u8 S! f. o1 G- U. S% e+ b6 a
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???? m2 P9 Y" o9 Y9 E2 t3 z9 W6 c$ d( d" f4 d
5 c; y6 s" k% x5 I2.这是request的程序, w% I! A, S, }0 J7 t0 T7 h
// Request a value from Extend% F4 q" Z% q2 @
//" ]: c2 G: b4 S- g4 B) K# O6 L
// Initialize the variant that will hold the BSTR. Set the variant's - X! p. @. U: C0 q8 Y// type flag to indicate the fact that this variant holds a BSTR. Place the1 }1 ?! \# c4 _' \7 l+ ?' [
// BSTR into the variant structure.0 Y2 D& h. l# r+ B: L* n
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. }, j2 I7 F) o+ N- o
; F' ?7 ]3 K3 l& a( C8 j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 B6 }. w3 r6 _/ d
VariantInit(&requestVariant[0]); % x) g" A0 E0 ?, M5 r requestVariant[0].vt = VT_BSTR; ) J# M7 W7 l) h! l requestVariant[0].bstrVal = itemStr;- U+ v, V4 u2 ^+ d
; k$ t4 b/ Q: g: D* V0 r topicStr = SysAllocString((WCHAR *) L"system"); 9 G! q+ g; H8 M' I/ i2 n9 e9 N VariantInit(&requestVariant[1]); 6 g0 V! g+ Q3 S( {" v requestVariant[1].vt = VT_BSTR; 2 ?# K: K) ]; H! W, i% l requestVariant[1].bstrVal = topicStr; + k1 W F& o2 W( c; \" g6 ~ d& h! z, L7 z4 {9 L( ^5 W* N
// Set the DISPPARAMS structure that holds the variant. U/ N1 h4 J9 |
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dp2.rgvarg = requestVariant;& z0 l# i0 t& I) ?0 s) m
dp2.cArgs = 2;- j0 H" _+ U2 I$ U8 G3 K# g
dp2.rgdispidNamedArgs = NULL;& {# Y J5 z" L- q7 E
dp2.cNamedArgs = 0; 3 l* G4 S! \/ u" L2 s5 Z) u0 q; G& p! ] C7 u6 U1 y
var.vt = VT_EMPTY;) @- b1 e- y. b( L
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// Call IDispatch::Invoke() ) o }# G( @% D9 g& i: p) m! O; }# t& u% N( V8 Z
hr = m_pDisp->Invoke(7 X; L$ W9 F; o5 }: M1 H* L
requestID, ' O& g2 B% a3 [2 ], o& C IID_NULL, 2 F' \7 ^7 @3 X, x5 |% [3 z' z& a LOCALE_SYSTEM_DEFAULT, ) p' m/ ]9 U# ]" \ DISPATCH_METHOD,7 s8 j9 p+ k* s7 E& G I
&dp2,6 O+ t5 @6 }. t7 T
&var, : A5 x' x2 ?- M s1 o* _/ ] &ei,# S: `2 c' L# [' o9 I. X, s
&uiErr); 1 y7 |# i" _$ N# F6 y7 X- d5 t- t+ ]: H/ {& O
SysFreeString(topicStr); 1 M( @. T, V) b) F8 f/ J ]9 j SysFreeString(itemStr);) u t5 o+ z$ V- p
请问该程序是获得extend里面的哪个值? . @9 f5 P- g J. w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????