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:! o, s" R5 I; Q7 l9 Q5 j
Name = (WCHAR *) L"Poke";( x: v3 E0 ?. [
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hr = m_pDisp->GetIDsOfNames ($ B* g" ?* t# V: m
IID_NULL, // reserved( q1 q7 A) G: B7 `' ]$ _- m7 R
&Name, // Array of names to get IDs for; M* _+ b! l b3 J% [; o6 y
1, // # of names in the array- x' ^% ^" h5 B( Y. P; U9 e$ t
LOCALE_SYSTEM_DEFAULT, // System locale, X+ ^( }) }1 B( g
&pokeID); // Array of IDs to fill on output8 H5 }2 S" x6 b. E8 ` g
& h2 P* \- j3 N if (hr) : p G8 o" N" k6 M$ S {4 O0 U, _6 R2 v
MessageBox ("Get Poke Unsuccessful");0 y7 @2 U+ h+ ~2 |" o# V
return;! n D% E1 F% y) y9 c
} ) F1 @5 B! h; E8 R) @, u3 K, H( }) v' J6 G, |$ I b$ U- v( _
/**************************传递数据给extend**************************************/ * X& O# m4 z8 r# p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & t4 G1 H9 e6 Q1 t4 Z, P0 y " o4 c# }- w/ t8 Y valueStr = SysAllocString((WCHAR *) L"1232"); % P9 o7 v5 t! C) k) G- t VariantInit(&pokeVariant[0]); $ L/ K) r" @( x3 ~9 @. W pokeVariant[0].vt = VT_BSTR;0 X* j* y0 c1 |5 ]5 D
pokeVariant[0].bstrVal = valueStr; 5 |: E( s3 C' r7 c K0 i6 Q , H, e$ t( [) k- H5 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 y: L1 T5 w7 Z3 z. k VariantInit(&pokeVariant[1]); % {: U8 U7 b8 h% I7 E9 v# B
pokeVariant[1].vt = VT_BSTR;' I6 j R0 @+ T" s. f
pokeVariant[1].bstrVal = itemStr;6 K" k( i( H5 h; x; _
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topicStr = SysAllocString((WCHAR *) L"system"); ; M [& Y8 T4 [* w: S+ b. R# b. d+ ? VariantInit(&pokeVariant[2]); 8 P$ ]& q5 n4 Z) _+ Y! o5 y
pokeVariant[2].vt = VT_BSTR;2 o* P- n5 N" T! ]- V9 {' \& e& Z
pokeVariant[2].bstrVal = topicStr;2 a( c+ f# y3 T1 M
0 P. v, r9 L9 \. W// Set the DISPPARAMS structure that holds the variant./ V8 v) _8 _/ ^& e6 M0 N4 m
- K0 ]' m$ }/ ^& ?" c2 w dp.rgvarg = pokeVariant;" i" \1 x- s2 h+ U* B
dp.cArgs = 3; 9 @0 Y7 Y5 N# r) c dp.rgdispidNamedArgs = NULL;+ V& c% d# y1 r3 i9 H; o
dp.cNamedArgs = 0; 1 Y/ r# B0 p4 n0 `& p) o* v . N% y' d& u1 v+ P1 u4 [: L5 c// Call IDispatch::Invoke() . L/ y; C/ f0 X5 ?& Z! A# [6 |2 S ?# P
hr = m_pDisp->Invoke(( F" E% z8 z: A+ @! X
pokeID, ' ?4 N" @! u c* o, R3 Y$ a6 ~! V IID_NULL,& h- o+ P+ G7 r+ g4 e) R7 {
LOCALE_SYSTEM_DEFAULT, ! f( n/ k1 t- Z, l2 m- Z; a DISPATCH_METHOD,) O# g1 ~- j* D; u
&dp, & |" c* p/ a6 e' r7 H NULL,2 e8 L$ e/ X: W( e u
&ei,7 A. g) C0 n2 H
&uiErr);1 W l0 Q4 r' W/ ~* g) Q
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SysFreeString(topicStr); 2 @* G' j; I9 n6 U1 U2 e t SysFreeString(itemStr); 0 K( i, n/ I; j' G6 @4 \ SysFreeString(valueStr); ' Y2 \9 p9 h: m8 R3 y 3 O& x* U" U# {: e$ w3 j e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???( H& U( w, Q$ E' W
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???? $ C4 `6 L. n' }% D! ?9 F; _ ' F7 l, q# u2 w1 W$ V( \% j0 _/ Y( G% _9 l2 f$ I
2.这是request的程序+ X# w) u6 ?! P) c
// Request a value from Extend 1 o# ?( m" A# f- o, N8 w// ) e* g9 W3 Q8 l) [4 C// Initialize the variant that will hold the BSTR. Set the variant's 5 K- b( Q3 Y" R- w/ Q1 V4 D) Q) a// type flag to indicate the fact that this variant holds a BSTR. Place the * H- {! g& v6 Y3 Z// BSTR into the variant structure. - `4 T( l" W0 ?1 b$ H @! u ( d8 r! f5 o5 y: D7 p0 T, }/ N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# K9 ~" T+ E1 i# B% J) J0 x" D
% u* f' ]& U0 o3 p q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% a' ~2 D" I# n) x4 R
VariantInit(&requestVariant[0]); : c; u5 ~& n; u4 A+ G$ A, R+ R; E requestVariant[0].vt = VT_BSTR; 4 K, o2 u2 n: r requestVariant[0].bstrVal = itemStr;5 y9 T6 |" q# d O; N0 y; Y
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topicStr = SysAllocString((WCHAR *) L"system"); . J. u5 @( c5 G: _& f VariantInit(&requestVariant[1]); ( P4 J: F- z- D& N5 C requestVariant[1].vt = VT_BSTR; ( l- x. U7 p$ f$ P0 E# u requestVariant[1].bstrVal = topicStr; 6 T2 z) h2 P: |+ n0 V 0 l K0 M0 S3 e// Set the DISPPARAMS structure that holds the variant. ; D# s1 r9 Q! C# p/ f# L: V: f) T9 s. X# r6 w) z- x
dp2.rgvarg = requestVariant;0 Y" D6 R% n1 C" S
dp2.cArgs = 2;" G5 C- W* ]7 E$ s+ W9 g$ |+ V
dp2.rgdispidNamedArgs = NULL;' G7 [2 F8 D2 I% K1 C f( h' U
dp2.cNamedArgs = 0;; w" ] A8 ?/ V. H( N
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var.vt = VT_EMPTY; . n: R" q# V" }& z5 k2 I$ `* M9 y& f; s0 E* ^
// Call IDispatch::Invoke()2 D5 y) [. H2 j `8 U- ?0 r$ P5 n
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hr = m_pDisp->Invoke( }' k K& k1 [5 G( N$ p0 m requestID, $ |+ W$ A; l1 ]3 ~ IID_NULL, & R3 V4 g! Y3 N7 p+ G; }9 T/ Z2 L LOCALE_SYSTEM_DEFAULT,7 _* W, N6 Z* ~8 t& v
DISPATCH_METHOD, : i9 v( ^9 S0 J7 D8 L+ N &dp2, ( b( x" `- d- b' q0 R* y& J &var,% Z* x2 a. B' K8 v3 n) G
&ei, 1 v- ^) {5 o& l' I5 s &uiErr); * V. y" W3 [, I9 ~; D5 Y; e8 ] r" K! z4 R) Q" j" W
SysFreeString(topicStr);& j, C, C4 T3 z% i7 Q" G
SysFreeString(itemStr);. {7 W2 [7 X; _* T- {
请问该程序是获得extend里面的哪个值? - C% E3 K- A( r! T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????