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:1 W# I+ }4 C1 x7 T
Name = (WCHAR *) L"Poke"; 4 k4 q$ }+ B0 ~ y9 c2 @8 `" a / `: n$ B ]4 k7 S. _8 E7 k
hr = m_pDisp->GetIDsOfNames ( - {2 `8 |/ ?0 v' A5 h IID_NULL, // reserved# x1 u' T; A' w% g) k: B
&Name, // Array of names to get IDs for$ L4 C3 A" i& \# r! F4 ]! Q! L
1, // # of names in the array6 i& @4 k+ A0 x$ b0 X
LOCALE_SYSTEM_DEFAULT, // System locale 9 N1 A' A, i8 o% F7 J0 M% W9 E3 B &pokeID); // Array of IDs to fill on output# t1 \6 {' E" y+ _ h
( \! r7 ]# ^" q% r4 F R& U+ \ if (hr) 3 D4 o1 j7 q1 p% n1 p {$ f9 H& U* j- H/ r x
MessageBox ("Get Poke Unsuccessful"); / t3 F/ }; `, ~- n/ f# M return; 0 ]& E' Q0 |- Z8 ^, ]7 f U }2 O6 d5 {" @" v
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/**************************传递数据给extend**************************************/* l8 y1 b5 W! Y8 x/ T; p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ _: u- d Q9 H3 d( b
3 V( h. `9 P! b7 s" h3 q" r& r& f2 ^ valueStr = SysAllocString((WCHAR *) L"1232");. F1 ]+ U/ J, w8 w& z) s# i. R
VariantInit(&pokeVariant[0]); ; d5 B5 `! o$ ^ s+ \8 e3 u2 n/ X- w pokeVariant[0].vt = VT_BSTR; 7 ^2 U% k5 S |+ Q1 R5 U pokeVariant[0].bstrVal = valueStr;- ]6 }& p5 m/ ~+ A1 i2 H# ^: i) H! f
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); K" [/ A$ P: F6 n9 ?/ H VariantInit(&pokeVariant[1]); : ~/ ?6 ^; Z# K- Y' l pokeVariant[1].vt = VT_BSTR;8 ?) }9 D* w J" h& J1 S
pokeVariant[1].bstrVal = itemStr;. [9 p7 q2 F, A7 h8 c. @/ D3 c
9 P$ n. d2 F/ i( f" D- k topicStr = SysAllocString((WCHAR *) L"system");8 X" ]4 u* S& d$ n- ^
VariantInit(&pokeVariant[2]); $ e$ B4 ~+ _+ J8 Z' U pokeVariant[2].vt = VT_BSTR; 2 w. o/ S4 b, T1 r pokeVariant[2].bstrVal = topicStr; ; ~9 r/ R# m% x0 @% D! Q6 B+ I& m' e# n- R$ Q7 l
// Set the DISPPARAMS structure that holds the variant.' L+ B; @( _- v" k! E6 v) m% B
( I8 k# V4 _. q9 J. ] dp.rgvarg = pokeVariant; , m V# n0 X7 \ dp.cArgs = 3; w' g4 Z6 S1 i& T% n4 p$ K dp.rgdispidNamedArgs = NULL; & b; D* e1 T: a3 s4 |; A2 ~ dp.cNamedArgs = 0;( `: U o. F: a* i" K' D
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// Call IDispatch::Invoke()! \% t& v+ E# L) E
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hr = m_pDisp->Invoke(3 E% ]. D a1 m2 J0 c) |
pokeID, * f$ m" D! ^/ {5 m' Z IID_NULL,# G! O+ D& `+ N- A, _8 F% ]
LOCALE_SYSTEM_DEFAULT, H% r {2 w" N
DISPATCH_METHOD, ) M v- O7 U V! W9 e2 o &dp,1 w O8 n$ k b( z5 Q0 o
NULL, & D& G( S9 M$ k6 q &ei, ( K; L) l5 G! K* e) ] &uiErr);3 ]6 s/ l1 f4 |% u; [% w( D
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SysFreeString(topicStr);1 Z$ n8 q5 C+ v+ c, i* A* U
SysFreeString(itemStr);$ L1 J9 V: S* r
SysFreeString(valueStr);+ a; X, a" V- L: w5 B
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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??? ( h3 q. |1 e- s: l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????; j. P: L/ \0 i: j* T
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2.这是request的程序5 H1 b) D+ y: h0 E
// Request a value from Extend " g: h/ o) {' i' r: u/ `// % v2 Q6 ?6 f1 ^. A$ k7 B// Initialize the variant that will hold the BSTR. Set the variant's( w7 s8 W" x+ D
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 V9 {9 K+ @9 c* Z. I9 P// BSTR into the variant structure.: e4 G2 q( k6 o) _, ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 v7 R) w3 O" }% j8 E9 J6 A 6 D8 r4 r$ Z& k" o [/ P' N0 i
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% E. }- k1 ], f! `2 M) H# i" E
VariantInit(&requestVariant[0]); * H; f/ ?# s% I* w9 d
requestVariant[0].vt = VT_BSTR;3 W9 y' ~+ g3 T6 M% {7 x
requestVariant[0].bstrVal = itemStr;7 V: P; p7 F$ ]* ?" [' u' I! ~; r
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topicStr = SysAllocString((WCHAR *) L"system"); 0 K1 G/ k' g, i; F; B. [, s: S. w$ `) E8 n VariantInit(&requestVariant[1]); , }2 ] W# [, x* k requestVariant[1].vt = VT_BSTR;' f% P A# K2 D, j# \
requestVariant[1].bstrVal = topicStr;3 s# G* B" ]% o+ U
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// Set the DISPPARAMS structure that holds the variant. 2 t' o9 _" Y# y8 Z0 }5 ?6 w& ?7 Z0 C% ?% ?3 B
dp2.rgvarg = requestVariant;! K: {# F7 K; Z* G8 W% ]
dp2.cArgs = 2;3 B3 ?5 M9 ^! g+ ^; S) s
dp2.rgdispidNamedArgs = NULL;4 Q0 A$ H/ U [8 B
dp2.cNamedArgs = 0;. Q/ L3 }) `4 d0 J2 J: [+ K
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var.vt = VT_EMPTY;% ^4 |/ D3 x4 r: ^9 F8 f
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// Call IDispatch::Invoke() % h& E. F1 x& s8 s( a) _5 e4 T; R' R# r1 W$ ?) p
hr = m_pDisp->Invoke( ) ^+ E1 S- A( _7 d8 c; ]/ o- T9 x* N requestID,& C" g1 R; W. w/ ^4 Z3 |% k$ S D
IID_NULL, + g* q" P P& D+ O* y# f LOCALE_SYSTEM_DEFAULT, / V4 W6 f2 Y( `; f2 B& p DISPATCH_METHOD, . E. s( [4 f- ?( I: n &dp2,, p0 M F/ e+ K8 f# c; O
&var,+ ^, e9 @7 U* a0 ?3 s
&ei,5 }+ L+ J) y* j* g4 _6 \+ E
&uiErr); ; i% a& ^& p$ k4 A* A: K # G, P8 O4 p) ?3 l SysFreeString(topicStr); 0 Z7 |1 R+ J0 V* i5 [ SysFreeString(itemStr); # Q# C: m' Y7 V+ J7 j请问该程序是获得extend里面的哪个值?* t- O3 j: j7 ?
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????