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:& i7 \7 _+ T" H4 G8 N
Name = (WCHAR *) L"Poke";, U& e% ~; x* g8 s$ g* U
* U# M2 W: h7 v: E: Q7 ? hr = m_pDisp->GetIDsOfNames ( , Z- G! G# T) R( j; q IID_NULL, // reserved2 V; J' s5 l! @) P) F2 f5 Z
&Name, // Array of names to get IDs for 9 S. a% f7 A/ j# a a J; @' M 1, // # of names in the array & v: Y5 a; O" b' I" ] LOCALE_SYSTEM_DEFAULT, // System locale( M# D( F; e# K: p, m% T; ^) o
&pokeID); // Array of IDs to fill on output, l$ j( ?0 q& b# v
+ x, \; t6 g4 R! i3 J5 `2 [4 A if (hr) # x: s- I9 q' S { % z0 z) r9 v/ q& ? MessageBox ("Get Poke Unsuccessful"); 0 O* b, t+ N, R G return;4 i6 k' G0 |1 x$ o
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/**************************传递数据给extend**************************************/! s* G8 M2 d# X5 z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 F6 z* v2 R6 `$ Y8 E; O & T# \7 [6 q! g6 k( [1 F- d
valueStr = SysAllocString((WCHAR *) L"1232"); 8 B% o; y P3 `. Y$ V' ^ VariantInit(&pokeVariant[0]); " y* U4 w7 E3 V# x G1 @3 y pokeVariant[0].vt = VT_BSTR; 2 @* i' ]( f: \: ]& k pokeVariant[0].bstrVal = valueStr;( t* t1 |) \. | M/ W, R6 Y
, Y* v- q( K4 v7 q r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 i0 Z( V% d. A4 e! Q VariantInit(&pokeVariant[1]); # @/ y5 n( C, b& F$ K$ q pokeVariant[1].vt = VT_BSTR; 6 \9 O' X2 `; C* d. `$ k2 y* e pokeVariant[1].bstrVal = itemStr; " ^/ `; Q9 o2 S, [, T7 T$ D7 q) W6 Y8 {7 |8 M0 F
topicStr = SysAllocString((WCHAR *) L"system"); 0 A+ j7 N) f+ y l VariantInit(&pokeVariant[2]); * T5 L9 _2 k; B& d2 c
pokeVariant[2].vt = VT_BSTR;5 f' G! _$ n+ _' S( l) {9 w
pokeVariant[2].bstrVal = topicStr; " y4 T7 o S1 q+ d6 L2 j3 T# C3 s6 h& k8 _+ x9 a- ^5 |- }
// Set the DISPPARAMS structure that holds the variant.' f% m5 l2 T7 }2 I6 P
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dp.rgvarg = pokeVariant;5 T J! ]3 X9 k. D
dp.cArgs = 3; 3 g5 _" t, c6 b) L# N. E dp.rgdispidNamedArgs = NULL;0 l; }- U' a& B9 B0 \) h# ` u
dp.cNamedArgs = 0; 8 c% W9 x5 m) {4 F. R; u6 W/ E/ E0 W # J1 g- Q! m1 t! t1 x" P# K( X// Call IDispatch::Invoke()& Y2 f7 E2 E3 q0 Z
- T$ n( E/ {3 n' k, Z hr = m_pDisp->Invoke(/ `; h/ t1 m" O3 x* p3 t& C/ a& \
pokeID,- ]; l; b8 l p7 {1 D
IID_NULL, - A4 ~2 e4 h" z5 M2 L LOCALE_SYSTEM_DEFAULT, ; F/ f) Q1 _0 i; [ DISPATCH_METHOD, - j; Z3 j0 [4 \4 |9 {( a. _ &dp, * o5 D% U6 u( y' f NULL, 0 P) p/ K. X0 j! f &ei,( i* O% e3 ]( x# g# N( {
&uiErr); ; B' w- S+ }% u r- T$ M 0 m; q' t8 F. l& x b8 V SysFreeString(topicStr); . [( h/ v$ p0 J5 N SysFreeString(itemStr);" f9 w# B& W8 b: p! F$ u
SysFreeString(valueStr); 1 c8 S9 j! Z" m/ R+ S, ~; [( c% g2 S# p
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??? / G+ A+ q- Q+ _' r- j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???? m h! |0 N; r n, F) i* n3 c- D8 X8 R( [1 T) V1 X
$ i# S- T0 H7 c5 ]; G+ }2.这是request的程序 ; N! f2 W% g8 D) @9 i" \3 G: X0 Y// Request a value from Extend- G: _, |& V3 @& } B4 K- C# f
// 8 `( q0 t$ L2 h& |// Initialize the variant that will hold the BSTR. Set the variant's 3 ~3 F. I* [, u" e3 S( ]- d; Q// type flag to indicate the fact that this variant holds a BSTR. Place the ! Y( I" p: j& z$ W// BSTR into the variant structure. , p0 I' g; w8 y) c' x0 N' ]( l0 ]$ I7 U! R, d- q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; U j8 ~+ D) r- n) y/ } : b# z0 i) E# t& y" R U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); B* } d" W3 X& p1 ~ VariantInit(&requestVariant[0]); 8 \1 H) U) P" h
requestVariant[0].vt = VT_BSTR;) }/ q& o) K* e
requestVariant[0].bstrVal = itemStr;) P6 e" B& @! a+ z
: }# @3 h( `* x. [9 H8 u3 R& w: ~ topicStr = SysAllocString((WCHAR *) L"system");2 V3 g O- u4 Y+ r& M1 X
VariantInit(&requestVariant[1]); x, O' q( a. U requestVariant[1].vt = VT_BSTR;) k, q/ c6 j8 i
requestVariant[1].bstrVal = topicStr; 7 \7 y. ]2 i. e, k% n& z9 j 4 e/ Z! m5 r0 h- ^; H0 l// Set the DISPPARAMS structure that holds the variant.5 K" Z: n9 {8 P" k
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dp2.rgvarg = requestVariant; . F8 v4 Y" r3 M, l- x dp2.cArgs = 2; % _- f$ O& F( Y0 p dp2.rgdispidNamedArgs = NULL; 6 ~( O M; f& z3 x dp2.cNamedArgs = 0;' \$ r7 c6 e$ A8 f1 ^1 E0 g0 C
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var.vt = VT_EMPTY; & g ~( _( U% m) L) h( L2 y- ~. Y 1 t: _) N7 C7 ~7 k! j# l' L5 `// Call IDispatch::Invoke(), a& d6 z/ X/ h8 J
% |/ c4 @1 r& [+ X$ T4 V j! Z hr = m_pDisp->Invoke(# ^$ ~& n7 U7 R- ~2 @$ o
requestID, y4 t- I3 I3 i+ S! G- U$ Q% X% o
IID_NULL,3 d8 ]/ ] {" ^4 D0 {3 R" A! G% f
LOCALE_SYSTEM_DEFAULT, & k5 h; u" z- W9 C' \# { DISPATCH_METHOD, 8 `! b: z+ b B2 U) z* q &dp2, ; _. i3 q1 ~9 |. K" q( v &var,. U6 n# f" K" D1 e
&ei, ( m) Z9 T/ X6 \0 c9 O &uiErr); w1 {; o+ z9 O
! u/ v0 A( e. ^' t SysFreeString(topicStr);/ f3 v1 i) |) Z1 l( ~) O
SysFreeString(itemStr);0 o( Q8 b' f. }3 F- R
请问该程序是获得extend里面的哪个值?) k% t3 o4 o, A! w
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????