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:! J q: ^' c4 G
Name = (WCHAR *) L"Poke"; 7 V7 R# ]5 U, w! ~' Y8 s 8 r$ R Z2 z+ B9 t, |2 }
hr = m_pDisp->GetIDsOfNames (1 V1 w! |! b- `) l
IID_NULL, // reserved , ^$ [7 b% u' e( A( [. x &Name, // Array of names to get IDs for& p* _4 y1 F$ Q6 o$ C
1, // # of names in the array . L7 F( S/ L/ m* y, k; V' t9 O LOCALE_SYSTEM_DEFAULT, // System locale! V% v U' v, o- I1 _
&pokeID); // Array of IDs to fill on output 3 a3 A' T1 `$ c$ _ + ?% c+ ^3 N" k8 K. g. f if (hr) & z8 c7 T6 g2 W9 [5 [' a n7 b& W% M% L {1 u- ^! n8 J0 h# n+ i
MessageBox ("Get Poke Unsuccessful");2 y+ V* W8 p$ ?$ T
return;0 C( ]1 E# Q8 \' |2 U6 q
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/**************************传递数据给extend**************************************/, ^; d' Q9 K# F& D8 I7 j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ T* V( I8 v9 I/ F t+ s6 V C8 A ! S& X2 y `" U; `
valueStr = SysAllocString((WCHAR *) L"1232"); : P; ?) C- u4 g7 U9 @* H4 z VariantInit(&pokeVariant[0]); & k: |7 n% W+ j5 s9 z3 C, A
pokeVariant[0].vt = VT_BSTR; 9 y$ D) X% G6 X9 a$ v; S* _3 E pokeVariant[0].bstrVal = valueStr;) Q1 |1 o0 b e4 z6 \) T: v. H3 v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : |' s4 F9 W1 S3 T; b( P5 {4 h; _ VariantInit(&pokeVariant[1]); - ~6 m. c+ _' N8 [' q1 l pokeVariant[1].vt = VT_BSTR;- {3 A1 Z' R# t
pokeVariant[1].bstrVal = itemStr;& `. t7 c @+ X+ L- f9 i. k& o4 Z
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topicStr = SysAllocString((WCHAR *) L"system");0 u# T8 y) q( l
VariantInit(&pokeVariant[2]); & p0 V0 i: a% B% a3 P
pokeVariant[2].vt = VT_BSTR;7 Z* j; z" s; S N+ s) f
pokeVariant[2].bstrVal = topicStr; . `2 Y' N8 l! P" Q' K# {# h4 T, U7 T1 `: F" v0 ~
// Set the DISPPARAMS structure that holds the variant. $ @0 e$ v6 @; C8 E6 n . u8 F% u1 q$ f3 y3 m3 ~$ R dp.rgvarg = pokeVariant;6 z, v! N2 ~$ N
dp.cArgs = 3;! i+ y2 ]8 o( l0 ^
dp.rgdispidNamedArgs = NULL; % x) c* f: d6 X, {( y8 e dp.cNamedArgs = 0; 0 @1 k5 j- t* E' u7 t7 n& i) P- a, I( E6 t, `: \8 A7 z
// Call IDispatch::Invoke() " D" D5 w6 U/ w, G! }5 w& V; V- m! b! `% Y, O; X' y% G
hr = m_pDisp->Invoke( " `+ J h, Z3 O( i* F: E; M pokeID, t% G& n! p/ ~' W/ K0 U
IID_NULL,. e' }, {- {/ D, Y6 b8 N1 b
LOCALE_SYSTEM_DEFAULT, ; D+ }8 u7 K# H5 O DISPATCH_METHOD,' Z* g( m1 F Z; G
&dp, 6 I6 a2 b3 Y# P; n I5 V# U* K NULL,) D2 P* w% Q, I
&ei, ' n2 }9 r* K* u4 B4 M &uiErr);2 L# F2 @7 v8 T5 U0 J
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SysFreeString(topicStr);# j- @+ O0 i+ @
SysFreeString(itemStr);. M9 L, b# _$ g2 G. d F8 T: w
SysFreeString(valueStr); 7 a% W, C: b6 {+ N y" P2 T z) @5 G# ~
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??? * ]( T1 W& K4 q. F) o% i4 _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????. r+ ~0 c d3 m+ d. m4 d+ g& z& D
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2.这是request的程序 ' a) W+ e1 T$ \9 u. K4 Z" U' z$ h- Y// Request a value from Extend 0 \$ [ [) r8 f6 [: M//& z" _. B) u' F1 ?$ w& i
// Initialize the variant that will hold the BSTR. Set the variant's' q3 y0 w1 h1 j! k8 {
// type flag to indicate the fact that this variant holds a BSTR. Place the% m+ L, X) V) D0 m
// BSTR into the variant structure. ( S9 P9 N1 L8 s0 Y) @+ \, ?. U* V6 X$ z! D& ~# c' o& h G, f% L
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ H- v: J8 x: B! F( p1 C/ K
; ^' O8 C+ y* P' z! O+ C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 X$ R5 z, k3 @, H0 _2 g% R' C' k
VariantInit(&requestVariant[0]); + O0 q3 _0 y' `% K4 N
requestVariant[0].vt = VT_BSTR;+ e- a5 H7 B9 D0 ^$ j
requestVariant[0].bstrVal = itemStr;' ?6 ~7 b- |: N9 |8 z2 ^. T
/ I0 E3 A; k6 R* D) F8 n& c topicStr = SysAllocString((WCHAR *) L"system");- e& O$ }! _! D5 v8 W4 x7 E
VariantInit(&requestVariant[1]); 1 D# K; }6 O6 m, _- E requestVariant[1].vt = VT_BSTR;' L; j0 h2 Z0 X: d# [
requestVariant[1].bstrVal = topicStr; 8 J" f, I& k4 Q# M! \0 K( Z, {; t# {% V7 Q# h$ Y9 \# S1 y
// Set the DISPPARAMS structure that holds the variant.0 H4 C. U% D$ p r6 Z" b7 O1 p
6 H9 |! W1 \% |: t! t9 X dp2.rgvarg = requestVariant;9 ]( L* k H% J8 C4 j+ i T9 q
dp2.cArgs = 2; 1 X, o6 y0 I( X/ K dp2.rgdispidNamedArgs = NULL;3 U: b2 C6 k9 j& E' n+ q G; |( E2 `
dp2.cNamedArgs = 0;/ J3 f% }6 A3 I# x: N
' u; j) p! |. P var.vt = VT_EMPTY; 5 ]" p! Y( m0 C9 H7 V# A, L/ n# c/ V, X j4 Y4 ~2 B- ]
// Call IDispatch::Invoke() 3 @3 \* a- u, [" D 6 L- {6 w6 b9 }8 G hr = m_pDisp->Invoke(* m! Z/ ~# |4 C) n5 J
requestID, + e" F; N" O3 F/ u0 B IID_NULL, ' _% q; F3 y% T& z- h LOCALE_SYSTEM_DEFAULT, " S) l6 w0 a8 N5 c* ` DISPATCH_METHOD, " }% T6 O9 ^0 ^ f( g1 s6 `1 K8 x &dp2,0 ] F8 m; F8 G* f6 E" ]
&var, 2 q0 [& [+ X5 Y/ G7 Z( b &ei,* o8 e! H% D0 P( B
&uiErr);7 ~% \9 \: v6 U% |
' x8 Q% h+ |( K9 H, e1 Q SysFreeString(topicStr); 8 L. ~8 ?! Z6 w O SysFreeString(itemStr);: H5 K3 O4 _! U2 C( J
请问该程序是获得extend里面的哪个值?7 M; z0 ~2 w- f& V. f# r8 a
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????