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:* d' \ y) B, Z( q
Name = (WCHAR *) L"Poke";" @2 e5 s+ o3 V- H
$ v& V; W' @8 }6 D3 h1 r hr = m_pDisp->GetIDsOfNames ( 3 H/ d; @) t& P. v. y IID_NULL, // reserved% D( [+ I4 n$ }/ o
&Name, // Array of names to get IDs for 8 X, t8 ~: w' [- k 1, // # of names in the array" v! @/ l- d3 p0 A
LOCALE_SYSTEM_DEFAULT, // System locale + h6 C4 k1 \# R: e8 D: c% p &pokeID); // Array of IDs to fill on output ) ?: P* q+ C8 B4 c/ g% w3 d8 F & `+ d, R7 |0 `& m6 k if (hr) # |, A% Z: B- [ {& x+ }8 W! {+ o( X) O W
MessageBox ("Get Poke Unsuccessful"); % f( X8 [2 @& X* d6 s6 \0 [ return;- i) m5 C, N7 l' f
} + k# a5 D/ i+ h2 ^9 m3 T9 C; s) g 2 Q0 Q3 ^) u D. o/**************************传递数据给extend**************************************/ ' h& s( O; {: \2 ~- E" V# V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 V' x* _6 g) x 4 }6 |. E% t, M3 x) s& B" A. y6 g: w
valueStr = SysAllocString((WCHAR *) L"1232");6 G! \5 q a7 R! @$ O5 V
VariantInit(&pokeVariant[0]); 9 Y L' u# Q# D- f3 e" q# ] u pokeVariant[0].vt = VT_BSTR;+ S& a/ {* i: `+ O% O; w
pokeVariant[0].bstrVal = valueStr; $ e V- a% R3 _: y0 A* u& o! M % r& Z/ t/ R7 _. N$ d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ Q$ l# d6 f2 d( y VariantInit(&pokeVariant[1]); ) Z! O i$ N9 o% w0 F0 q! U( a* a
pokeVariant[1].vt = VT_BSTR;) B3 Y. l$ ] i: {* p ~6 Q
pokeVariant[1].bstrVal = itemStr;( z7 y$ ~, K3 M9 D" @& r
5 K+ T5 x, T4 O topicStr = SysAllocString((WCHAR *) L"system"); 1 Y( [% g F5 n VariantInit(&pokeVariant[2]); 9 o0 e- z g" P. g+ H/ f
pokeVariant[2].vt = VT_BSTR;1 a% S' c4 f6 c
pokeVariant[2].bstrVal = topicStr; ; j, m, N; j" E* H" U) O: ]# E 4 g0 o, @* N- t0 I9 S// Set the DISPPARAMS structure that holds the variant. $ D# I p: z7 o0 F; P. ]- A6 w! ^( G( b) h: S
dp.rgvarg = pokeVariant;4 i! n6 [. T; z( S4 y; y; h# s2 @
dp.cArgs = 3; * Z1 J" K$ |3 m dp.rgdispidNamedArgs = NULL;; k, g' P6 G% U" x" K
dp.cNamedArgs = 0; 3 z8 |' J8 g- K$ I6 a$ \7 I+ N% x3 F$ q7 O; @' m* q7 h( @) g
// Call IDispatch::Invoke() 8 M4 l; S4 I W& M 3 F3 [' N! B5 P! p/ S: h$ x hr = m_pDisp->Invoke( + D5 g0 g4 ^/ B* D pokeID, % z# ^9 d) }, o0 T) p) G IID_NULL, 2 {" P4 n# [* i" W+ j4 r LOCALE_SYSTEM_DEFAULT, . O/ {& O' ~+ @* x- N DISPATCH_METHOD, ( h9 p# }" U# w &dp,; \3 I3 {( O- i8 C: k0 f
NULL, ; q9 |0 b3 k- T+ G1 ? &ei, " h$ n8 W2 A. }; g2 x &uiErr); - w% `6 r; q. _! P, _- j' c4 H! i0 v7 d2 U
SysFreeString(topicStr);9 V4 ^' V z+ W- ^7 S
SysFreeString(itemStr); . J( F$ q2 K$ b0 m) _8 V SysFreeString(valueStr);) k9 N3 Q8 A7 g7 l
. Y2 Q. M: m4 d/ y, ?( P) Y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??? 6 i" B' I: R( ?8 D# X: K. 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????( u* Q- ~7 B4 `
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8 C/ r1 b7 F5 A2.这是request的程序" b4 d9 a1 L' B+ ~# y
// Request a value from Extend) A6 r% N0 S/ m& t! ~$ e
// 0 B& N# }; q9 W4 b5 i// Initialize the variant that will hold the BSTR. Set the variant's " [5 p. y8 I. U3 Y+ g6 y// type flag to indicate the fact that this variant holds a BSTR. Place the 3 {: K& l* m' ~6 {' j// BSTR into the variant structure. : N7 e8 n7 ]. R- m D9 U/ H+ S 4 B! r" ]0 [! e. |" K: U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 J$ A8 `( n I1 G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : k# P4 P- f h; ^/ e" |; h% G# ^ VariantInit(&requestVariant[0]); # ], E O E u/ h requestVariant[0].vt = VT_BSTR; # q1 `. T P& e8 F0 d3 y! k requestVariant[0].bstrVal = itemStr; z1 K* l$ `1 }! S1 i5 {' }7 `; s& o0 J0 L
topicStr = SysAllocString((WCHAR *) L"system");7 x" Y* e: e. M1 D- R* F
VariantInit(&requestVariant[1]); , e8 m8 z* Z; t& y8 b* q0 k( A" J
requestVariant[1].vt = VT_BSTR; 0 G: k( ^! V$ W p* B requestVariant[1].bstrVal = topicStr;' g8 A# k, ^: `! z6 g/ N% m
/ F* U% S5 w9 z7 C+ R; ]// Set the DISPPARAMS structure that holds the variant. 8 {2 X" `3 Q* E2 o# R4 x: W! ~7 ?2 e# q0 O
dp2.rgvarg = requestVariant; 5 F% y5 o; s8 b dp2.cArgs = 2; 3 B9 l# m, R( C! E5 r7 P: l dp2.rgdispidNamedArgs = NULL; 3 H& A0 i5 p( d5 [4 m7 Q dp2.cNamedArgs = 0; 8 J) h( z6 t/ S3 n3 y 3 b2 G% V6 T c$ N$ Q9 x var.vt = VT_EMPTY;) [/ u$ J! h J- v+ J& Z- H
8 c2 v, |' F' b3 A9 D, \// Call IDispatch::Invoke() ; {" Q B+ j- V: x$ ` 0 U" V: H `( R hr = m_pDisp->Invoke( ! P- V m' G- e* z+ n' T1 \ requestID, b, X1 R9 \3 F% x8 a
IID_NULL,* R# }: n' X( s: Q
LOCALE_SYSTEM_DEFAULT, " Y9 {8 N$ A0 q2 n4 S2 P; q9 @ DISPATCH_METHOD, 3 B. v1 V& b: d- ]9 \# X &dp2,0 o8 O/ y1 T" C
&var,# }9 z) W7 }( K
&ei, : A/ G) p- X. O0 l8 R& p7 i &uiErr); 0 [% ^! i5 L; X W$ r/ L7 r 2 {/ y: L9 U1 B! ]# { SysFreeString(topicStr); / `+ `3 m; f& i7 ?% `6 w: @ SysFreeString(itemStr); ?. Z" [) C1 U Y. R请问该程序是获得extend里面的哪个值?# m8 H3 i0 X, y$ G2 b" F$ W0 R( v
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????