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: 7 Q5 n& e1 ?7 SName = (WCHAR *) L"Poke"; 2 F* m3 X" t* W0 p# y . t! e/ c2 S4 ?5 U7 `
hr = m_pDisp->GetIDsOfNames ( & ~6 B% K% V& o2 h) f IID_NULL, // reserved' s7 ^4 f; T8 t' Z6 ~! L$ k
&Name, // Array of names to get IDs for 6 }' E$ h6 z% u9 D, d 1, // # of names in the array . l" K1 N. s3 {* r6 H LOCALE_SYSTEM_DEFAULT, // System locale0 }! |5 I k3 i) X6 h
&pokeID); // Array of IDs to fill on output' ?$ v1 q# h i! G- `' o. F
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if (hr) 8 Z2 d3 [0 U3 k { 9 V* c2 L7 P. g) d4 B# o5 ^ MessageBox ("Get Poke Unsuccessful");* {1 F" R E* h7 W! S0 w$ K8 C5 u
return;* d( C1 t$ i& ^
} 4 Q! {7 X# s" q$ G/ C7 \. y4 l- q 0 c) I! d# k; b5 d) ^/**************************传递数据给extend**************************************/ $ y' [7 o: g4 r2 c' _ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 c- G$ B2 i0 U0 S - W4 m! b r( x+ P
valueStr = SysAllocString((WCHAR *) L"1232"); ; U0 u% z% w2 c" ]& O* o& j; `! V VariantInit(&pokeVariant[0]); 9 ?$ f- N' v- G pokeVariant[0].vt = VT_BSTR; 1 f+ s) s" H' s7 K$ R& B& y1 |% V8 i" c pokeVariant[0].bstrVal = valueStr; ) R. J) G; e3 g% f) I- I1 F2 O8 v( B1 E; v8 g1 r$ W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 B+ z: E7 R- y VariantInit(&pokeVariant[1]); 3 \' ]- v. Y7 x8 R! K# e# p' v8 h8 J pokeVariant[1].vt = VT_BSTR;5 p% Y( r5 N& }- O8 o
pokeVariant[1].bstrVal = itemStr;9 J7 F0 Z* O1 s3 Y# `
+ u8 f. Y7 \5 R e topicStr = SysAllocString((WCHAR *) L"system");* f8 L" c- A" T% I P8 v" u1 _$ p
VariantInit(&pokeVariant[2]); 8 X( o8 ~5 N: V. O7 t9 Q- v$ |) a pokeVariant[2].vt = VT_BSTR;0 A( Q0 y( F" }
pokeVariant[2].bstrVal = topicStr; 6 F4 j1 @4 k7 l/ U$ I5 s4 b2 S- } 0 i6 e" w' j8 V' K t1 j1 T# `) Y// Set the DISPPARAMS structure that holds the variant. 3 x' |) b; a0 W9 ^- x# t & c. N: e- Y! c& P dp.rgvarg = pokeVariant;' c7 d- L# Q" A9 F# a3 s
dp.cArgs = 3;9 h) b1 f2 F: ^
dp.rgdispidNamedArgs = NULL; 1 s% |$ {3 U4 J1 h& q: S0 Z5 h4 | dp.cNamedArgs = 0;0 {( Z& N) N* J) A5 K
% ~+ X1 s9 S: B& |// Call IDispatch::Invoke(), S9 i8 L; F' l( `) J' T. y% S+ F3 N( Y
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hr = m_pDisp->Invoke(* y- c& h5 m; P* M4 q+ N/ F: m/ {6 I
pokeID, 1 S0 X8 k$ D* P$ R IID_NULL, m/ @4 }- a) i# l
LOCALE_SYSTEM_DEFAULT, # X& r$ K9 T1 R& M' z DISPATCH_METHOD, 9 y6 W- x4 Y k- ?8 r &dp,: S3 L2 q0 t( m& Y# j
NULL,' U; ~( n- A$ R [2 |. Y
&ei, $ ]$ `" r5 |+ T0 p2 ` &uiErr); I( U3 _( k0 S+ a: Q i
. ]4 f# d. c' u2 ~+ ~ SysFreeString(topicStr);$ }& K0 }- K- F0 k' @
SysFreeString(itemStr);% p( O, `1 B o: R
SysFreeString(valueStr); 3 ]# m- [3 R d: |, L7 N1 M8 [: A4 v' O" z
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???# u5 } [) G' W7 \
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???? ' j4 {7 A$ H$ M" C5 Q' \3 S! i* G; {, y9 A# h4 q3 V6 W
+ F+ p; ^8 y+ X8 E, }! O) h+ ?$ H2.这是request的程序+ A6 N/ U' n" M0 J- d
// Request a value from Extend % R% x T, C- t5 L// `5 B' O/ p7 f
// Initialize the variant that will hold the BSTR. Set the variant's 0 }( K# v6 N8 F* P// type flag to indicate the fact that this variant holds a BSTR. Place the9 c) L2 C1 n6 x6 G% ]) I! d, v H
// BSTR into the variant structure. ) e7 ^+ f: o0 Q4 n8 H& G0 v : C% G0 Z* G. ~8 R k7 |8 X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 g1 t; B8 b' y& Z4 y$ b : l/ x7 ]$ a+ H N L8 |6 M/ [8 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( h3 _5 a9 [6 }; I
VariantInit(&requestVariant[0]); " A' } `* }8 E6 a& @
requestVariant[0].vt = VT_BSTR;2 m$ H5 w& ^4 n
requestVariant[0].bstrVal = itemStr; & K1 W0 S7 v$ R" E. w4 g) \ # I& p- u6 }) U3 k1 U topicStr = SysAllocString((WCHAR *) L"system"); & n0 ]/ r& O7 ?: @/ r* w+ m VariantInit(&requestVariant[1]); * \2 C# y* i" z' B requestVariant[1].vt = VT_BSTR;( Q& {; h" x% _$ T) {* v* i
requestVariant[1].bstrVal = topicStr;% F* ?1 T2 W/ K* s$ A
; I- m5 t1 f9 M. m$ c// Set the DISPPARAMS structure that holds the variant. / R* v4 D6 E$ J+ p' H# b : K: P+ w0 q c' z6 ?' I2 R. C dp2.rgvarg = requestVariant;& H/ ~/ W, C. q
dp2.cArgs = 2; + {$ R9 p! k5 n' O* H& ^9 O dp2.rgdispidNamedArgs = NULL; & r+ D `7 Y6 N+ E dp2.cNamedArgs = 0; * X9 q/ @, r) C4 M# V+ c ! a, n8 Z- J( G! } w0 L# t# A var.vt = VT_EMPTY; 2 `3 I7 f1 P: }3 x2 Y( w " a- ?: R! `2 R9 a// Call IDispatch::Invoke()5 s0 [* y) P. O1 Y& T8 {- Y
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hr = m_pDisp->Invoke(1 ]3 ~6 o4 i) l s
requestID,& N6 P/ F, B3 B
IID_NULL,/ w3 z ]: z# o! N4 X' V4 y3 E( P
LOCALE_SYSTEM_DEFAULT, 4 _% V( H: Z7 w7 x0 f3 ] DISPATCH_METHOD,7 Y) M# H/ x# j1 f
&dp2,4 T' c& C8 T( x$ z1 a& M7 a
&var,; D& y$ y* `+ ?0 @) J: B1 z
&ei,( _ C: ~1 t4 q1 Q1 E0 |2 b4 Q
&uiErr); 8 O9 d; l- X! ]7 u& M, O1 D R9 g0 h1 I% T, a5 L$ [& |
SysFreeString(topicStr);8 ]; m- C* t6 p0 b9 X; C# o
SysFreeString(itemStr); 5 ~- S* q& ]4 x0 C请问该程序是获得extend里面的哪个值? 0 ^. z9 g+ W8 l, l/ D4 R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????