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 t1 S6 [2 h0 I% p
Name = (WCHAR *) L"Poke";) _! |7 f5 z& O
% {% @* V/ X& \! O5 u6 u- V hr = m_pDisp->GetIDsOfNames (# V+ O8 C$ A$ E
IID_NULL, // reserved 1 a Y6 S8 a7 l% Z1 Z &Name, // Array of names to get IDs for( k! Q y* G% h5 l0 C
1, // # of names in the array. u0 V0 M- B ~, h! z, I
LOCALE_SYSTEM_DEFAULT, // System locale3 x" Q# A7 i$ T; j4 X7 w$ ~% V
&pokeID); // Array of IDs to fill on output, t' R7 l( z; c2 E, A
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if (hr)) e" R8 x/ R, C. D6 u
{ + j, ~. n9 i6 t6 W/ `+ V# u MessageBox ("Get Poke Unsuccessful"); ( i7 R' G, a/ B& n0 B return; + h" w1 S* J5 _' ]/ {) L' r } ' w0 F( |6 Q- Z9 a# z5 D* i! u/ d3 s! n8 q! j9 d z
/**************************传递数据给extend**************************************/: w( z r: R: h. _: M' u0 f5 b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + T2 Q9 d4 m S0 T * S# L9 V$ t7 Q. z& Q+ d$ y
valueStr = SysAllocString((WCHAR *) L"1232"); r# O' o5 Z5 d$ r) }. [0 D! U VariantInit(&pokeVariant[0]); ; |* y5 r6 ^5 f% [, ]3 P: G/ P pokeVariant[0].vt = VT_BSTR; $ b/ q3 k9 V0 h. i( ^+ p2 } pokeVariant[0].bstrVal = valueStr; 5 O! Z8 `/ b! [7 ?5 T& W! Z; G2 l( \% ]4 H+ h9 W3 |) y# ]% v% O/ b1 v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 v0 a' q+ j/ J( O- q/ V+ K0 X
VariantInit(&pokeVariant[1]); , C% d( S, B9 c" B8 h* Z
pokeVariant[1].vt = VT_BSTR; f, S5 K+ P& H8 R pokeVariant[1].bstrVal = itemStr; 4 a9 b/ i- Y* D8 e# v# Q' l7 d8 f& z( N
topicStr = SysAllocString((WCHAR *) L"system");% F c; G: P/ q& x" @3 f/ ~
VariantInit(&pokeVariant[2]); " {/ a. A, P# U- t
pokeVariant[2].vt = VT_BSTR;# j& m$ H* f) z3 g
pokeVariant[2].bstrVal = topicStr; $ w3 o2 M; S! J' u$ r4 q' u& F7 e q: u6 u
// Set the DISPPARAMS structure that holds the variant.6 ]% S) ^' L9 Q1 p/ Y" i
% E6 w* ?+ G* N
dp.rgvarg = pokeVariant; ; |- g* ?9 g7 N8 C' Z8 N dp.cArgs = 3;6 S8 Q- G9 Q0 N( i4 F
dp.rgdispidNamedArgs = NULL; j) D+ P2 w% Q: @! d0 l* x& Z
dp.cNamedArgs = 0; # d8 M0 h/ P# n3 @! p% z [7 ^7 o9 M- n! G; x. `+ V* g
// Call IDispatch::Invoke()5 h9 m( o( c2 n( ?+ W# P
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hr = m_pDisp->Invoke( , f4 I# h/ [5 _( I pokeID, : L4 n* u m6 P2 I" { IID_NULL, / E* P& x' t- C* g9 K. Y LOCALE_SYSTEM_DEFAULT, ; f9 r* F N j. l ]7 P DISPATCH_METHOD,8 q) ]. @; U8 u0 J0 W6 ]! ]$ H
&dp,9 M% n4 {! b8 B- \( ^3 u
NULL, ' z& e- p9 U; E1 ^0 c. P8 f+ N* P; a &ei,8 t2 d# ^- X) m4 r! K9 Z t
&uiErr); ' J! W/ \ t# h6 p! L 2 L) z* s+ S8 c; h SysFreeString(topicStr);" ?, A# E! q' z: P0 o3 b
SysFreeString(itemStr); & y/ n% L5 k: ^" | SysFreeString(valueStr); ! W- i+ d1 K) A3 B4 w 5 D7 l; t5 _7 a% G% @# B$ @) V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??? ) q: o1 l. N+ J- L/ u& f G4 k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????, N/ C/ S, k9 {
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3 p0 b" H* Z! j9 N5 }2.这是request的程序 + Q: E* k* ^6 x( F* k// Request a value from Extend 5 F1 a/ ~: e9 W/ r! d//1 h4 h7 @4 e' M6 T2 q$ {
// Initialize the variant that will hold the BSTR. Set the variant's. L' m; I, L' v% Q
// type flag to indicate the fact that this variant holds a BSTR. Place the9 n7 ^( l' D) k) I; z A4 Z' [1 n
// BSTR into the variant structure.- e$ Y0 `; d8 Z$ t) [, R- ^. z
% I7 s3 ~/ Q. q5 \6 L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) p ?: R9 }6 X5 w 1 d7 K# I, D& E1 \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 }/ a6 [7 Q' }# @
VariantInit(&requestVariant[0]); 6 N! F5 {( z( E: X0 ]% `6 n. K
requestVariant[0].vt = VT_BSTR;. k9 e0 d# u: |5 R0 M" I
requestVariant[0].bstrVal = itemStr;6 S! t) W. N+ s3 K0 v4 z9 T
# ]& ?; X7 e4 w" d/ A* [6 q
topicStr = SysAllocString((WCHAR *) L"system");! c7 m" {8 d2 H. L3 h
VariantInit(&requestVariant[1]); : }% [5 N' ]- O' p' @ l, s( d requestVariant[1].vt = VT_BSTR; : ]( a5 C6 k) V5 z0 _ requestVariant[1].bstrVal = topicStr; + {; q7 N9 v+ ~3 O s" D" c# V/ Z i$ r2 j: j ]
// Set the DISPPARAMS structure that holds the variant.8 ^! [; N, Q* c
# x* W# S0 H8 O; T
dp2.rgvarg = requestVariant;) Y# Y9 z# @& o. }, f
dp2.cArgs = 2; 9 U6 l" p8 f) r4 w, A' d dp2.rgdispidNamedArgs = NULL; 0 I* b0 E" @& z2 g3 E3 \ dp2.cNamedArgs = 0;! F3 ]1 J2 {) g; l) d
# w% L Z" W7 C: d6 R" D+ ^ var.vt = VT_EMPTY; " p! |/ W1 A7 m8 G& r( e. A+ Q# z, P5 f# Q. G/ N+ s
// Call IDispatch::Invoke()! {2 `) L" J. q" h# p
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hr = m_pDisp->Invoke( 2 U% E0 k; x" `" S9 p requestID, $ I" z$ J- Y/ I: T* I- G% q3 b IID_NULL,3 y/ @" i# R' f7 w6 e& u
LOCALE_SYSTEM_DEFAULT,7 y! ]8 ]: h( C# r0 P" @0 h
DISPATCH_METHOD,5 {% O) \2 F: S7 ]
&dp2, ' S& ?2 ^( [. z &var, . Q' q. G; ]3 [ &ei,/ F5 G; Z2 U0 B. G- g* {
&uiErr);' @3 |! g" e. w
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SysFreeString(topicStr);5 n6 s, M- n) X- O" ?
SysFreeString(itemStr);0 A' h( u( l1 [8 B) n1 E, n2 ~
请问该程序是获得extend里面的哪个值? 8 w$ U% }: c% H6 C( T1 N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????