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:( P) b- `5 k+ ], v+ Y8 ~
Name = (WCHAR *) L"Poke";, K. i, U9 N5 Y7 E
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hr = m_pDisp->GetIDsOfNames ( C. Q# A5 l8 T) Q- a% S# C0 a; g IID_NULL, // reserved2 g. K- i* S) [- W+ Q% Z) ?6 _
&Name, // Array of names to get IDs for 5 N. R& V' f+ t4 u 1, // # of names in the array % p& v7 s' a+ h2 s$ L6 C/ s3 | LOCALE_SYSTEM_DEFAULT, // System locale% m5 S* H3 t4 G. Q- g, a
&pokeID); // Array of IDs to fill on output ! f) H2 O @- I % U' ^+ S5 f" e5 I! Y
if (hr) # r$ Z$ H$ B! d- p' c$ j2 [ U+ _ { " d0 D2 L, {. j4 N$ w& C- p MessageBox ("Get Poke Unsuccessful"); ( u8 D7 G( h. f3 g7 V- q1 M return;4 Z: C( c% t8 ^9 [1 x- |$ O0 Z# S
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# {. Q2 z# Q6 u: l: n/ D/**************************传递数据给extend**************************************/ ! v* ?: n+ B$ q. S" \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: D0 @5 w$ ]# `$ i+ m, p$ Q
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valueStr = SysAllocString((WCHAR *) L"1232");; c5 m. A1 D, X; Z
VariantInit(&pokeVariant[0]); ' B8 i+ c# U% V9 r% k$ Q0 z( X$ a8 m pokeVariant[0].vt = VT_BSTR; 7 C- g5 M3 X* T% H+ x& u! p pokeVariant[0].bstrVal = valueStr; 8 f3 u- B* t! c5 S B5 w) h $ c- i8 v$ p- K `6 ~2 I4 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 u6 |! ?& o2 A& v- K" V1 [
VariantInit(&pokeVariant[1]); & O3 S, C I$ v. ~
pokeVariant[1].vt = VT_BSTR;& s# D2 J9 A' Z6 a
pokeVariant[1].bstrVal = itemStr; 1 V# L5 r6 q: F4 u, E5 s5 j& _7 g1 R2 }$ n: i! e+ |& w. |
topicStr = SysAllocString((WCHAR *) L"system"); 8 m* H- i) g; R2 \" ]! \$ w VariantInit(&pokeVariant[2]); ' Z; Q# c2 g9 M+ c6 C- U# W
pokeVariant[2].vt = VT_BSTR; 5 |' i# ^ a, k7 `4 F4 q3 W pokeVariant[2].bstrVal = topicStr; 7 ?9 Q3 X7 p, v2 {! n1 A' j6 C% ]4 `3 _2 }0 o
// Set the DISPPARAMS structure that holds the variant.6 S; z0 a2 y8 N) \: @' e! u
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dp.rgvarg = pokeVariant;. {8 l1 n7 [ [, _8 a
dp.cArgs = 3;+ n7 F R' K: t
dp.rgdispidNamedArgs = NULL; . r9 o* t* L! [, T/ }+ I* n5 P dp.cNamedArgs = 0; / }& B+ _) ]7 e% h0 S! @! ^) ?4 d$ K1 ^6 i
// Call IDispatch::Invoke() ; i* Y) ~' x7 w# L& c$ ~3 [( u0 R! {3 E+ A5 t! \; ~1 g! p& Y
hr = m_pDisp->Invoke( / ^8 Y. d& D6 M2 G pokeID, ) l: d& t5 l* x. q4 h; V IID_NULL, 9 H$ I5 `7 V8 O: {! ]$ i8 N3 { LOCALE_SYSTEM_DEFAULT, + [; W4 b2 K6 ~. L# D! q1 M DISPATCH_METHOD,9 d3 k5 D" @) V/ n8 c. Y
&dp,1 i: [; C" z4 m) X, g0 F$ |
NULL,# K) ?. |; V6 t- l% P
&ei, ' i7 F# H0 d: ^' m$ t6 E& M$ C8 v &uiErr);& P$ [8 H4 m* f" k7 r; I: C
" ?1 i& M! ~6 @5 H+ L- L SysFreeString(topicStr);" z& ^( m. W/ x% h
SysFreeString(itemStr);0 M9 ~( l0 O, ]6 W+ t/ P
SysFreeString(valueStr);7 v& p4 M8 q+ D& o
% O% T: u/ n v- `7 S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???' O6 S( y9 D2 v) R
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???? + g- r* v5 ]& Z 9 k! ]" W" J4 X' S) |8 a8 }7 f/ o: J! e' ?$ L: m+ ]: @
2.这是request的程序 6 M8 ^8 b( _1 w4 L& Q9 d// Request a value from Extend ) j6 j, V6 k3 }// 0 Y- O, h. c0 f1 K3 k2 C// Initialize the variant that will hold the BSTR. Set the variant's( a ^9 N6 U# R) Q; M
// type flag to indicate the fact that this variant holds a BSTR. Place the $ v# t7 j% y$ }( K2 s// BSTR into the variant structure. ( G9 V: v2 E4 Y : @ |9 V4 O* u( _; a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & L3 K& n& v5 V7 R! x: A# \ ! a7 y* L3 i+ ~1 _5 \6 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 i' t& G+ V9 W6 J+ w% H& n# J
VariantInit(&requestVariant[0]); 4 K% B% M* [2 J1 s' H requestVariant[0].vt = VT_BSTR; 9 u- }8 W. e: z requestVariant[0].bstrVal = itemStr;0 ^6 h3 K; P z7 I. O" M/ f
8 ?8 A" a5 C ]5 v+ r. t( T topicStr = SysAllocString((WCHAR *) L"system");% _7 c6 A! H) p
VariantInit(&requestVariant[1]); - g0 m0 p7 o6 g$ M
requestVariant[1].vt = VT_BSTR; 9 g; B/ G3 W# H, \ requestVariant[1].bstrVal = topicStr;0 f9 x* ` K8 \9 Z/ f& F
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// Set the DISPPARAMS structure that holds the variant. n+ `8 o7 ]1 e8 t2 t
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dp2.rgvarg = requestVariant; 0 @0 {+ k$ D( g2 j dp2.cArgs = 2;' m/ c3 _0 ]! ~4 P3 d- Y
dp2.rgdispidNamedArgs = NULL; 4 N: t! }& t) H& l5 G7 s dp2.cNamedArgs = 0;* y8 ^2 w. K. O1 H
0 }% C+ S" ^2 [3 g1 I; b8 | var.vt = VT_EMPTY; ! r# d/ z4 M1 g( q) s * X2 X/ X6 n, d// Call IDispatch::Invoke() ' p- N5 s8 o( K" o8 @! @5 i$ `6 I0 j! l% z) x
hr = m_pDisp->Invoke(& t; x/ Q9 u$ s8 ?) @
requestID, ]* C& J2 q _. t$ r3 y. g( `
IID_NULL, . T6 I( Y& Z4 A LOCALE_SYSTEM_DEFAULT, ! D7 _: a! r; }) Y' C5 D( v9 G DISPATCH_METHOD,' e- r. G0 R! F5 Y
&dp2,0 N _9 g! }. U
&var,6 G4 X% [. c9 X/ o8 l% m5 g
&ei," [6 M, W1 t6 t# H
&uiErr); 8 Y! R" ]5 g7 O! @: b8 j ' g5 _2 u% _1 N9 |0 d5 I! N SysFreeString(topicStr);9 ^: d' l7 n0 Z" _/ @6 c3 j# I
SysFreeString(itemStr);# C( O4 n4 ?* C- S# p2 k
请问该程序是获得extend里面的哪个值? * I% \9 c) |; _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????