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:% ?. S! M5 ~% w4 v- ]
Name = (WCHAR *) L"Poke";4 \' i- T l' ]4 Q1 z' B
- Z" l, `: z# o# C3 L! B) w hr = m_pDisp->GetIDsOfNames (! `# c1 W5 [" c4 F
IID_NULL, // reserved3 U3 ]1 i; R O4 `2 n+ O/ c
&Name, // Array of names to get IDs for ; w5 V3 d# w5 P1 U- J 1, // # of names in the array ! L: t( X( W O6 \ LOCALE_SYSTEM_DEFAULT, // System locale 5 { c* O/ |1 \1 p &pokeID); // Array of IDs to fill on output' ?# p8 ]* D) t" V. A2 o% y
' V. ]! K3 s1 F) U' `$ Z if (hr) # r, Q7 E; Y. R3 o( k { ' n! O6 z4 Y) p3 m1 a1 S/ U( k1 w) T MessageBox ("Get Poke Unsuccessful"); 1 D4 t i, N6 r/ L3 `" [7 U9 e1 x return;: ]3 f+ d5 z0 i6 x, b
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/**************************传递数据给extend**************************************/ : ~, r( V- e8 c5 D% a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ R4 I- ^( t7 T
( P9 V* q1 s! T2 C0 B valueStr = SysAllocString((WCHAR *) L"1232"); 1 t9 I |2 p! d N' R& T s/ l, w VariantInit(&pokeVariant[0]); , y- ]! H6 C1 R- K3 k* X' O3 V pokeVariant[0].vt = VT_BSTR; / c7 W/ G* L8 v* w pokeVariant[0].bstrVal = valueStr; 7 X. n; n- q, Z- G$ ~ K$ \ . @7 W9 C4 \3 }2 q/ I& g8 C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ x% B/ I/ p1 l+ }( C, ^. _/ q ^
VariantInit(&pokeVariant[1]); 2 s2 n8 ?- ^$ U9 U# E8 R+ U: g3 D
pokeVariant[1].vt = VT_BSTR;( s/ O4 }5 ^1 E6 W( p
pokeVariant[1].bstrVal = itemStr;! o) I* E, [. R9 d+ i
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topicStr = SysAllocString((WCHAR *) L"system");$ z7 y3 Y! V: `! M1 R! g8 h
VariantInit(&pokeVariant[2]); : E I- `# j: F8 ^) U3 Q6 A+ a; b8 t- x/ m* D pokeVariant[2].vt = VT_BSTR; 1 t& @0 @5 z- D pokeVariant[2].bstrVal = topicStr; i F1 D* f" ]
- F b6 g# M/ j9 n' l// Set the DISPPARAMS structure that holds the variant., n7 l3 \5 z5 Y" N3 H
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dp.rgvarg = pokeVariant;4 h2 K! W( K; p& E- P/ V% H
dp.cArgs = 3; # }) a6 |( | }$ c dp.rgdispidNamedArgs = NULL; ' F! H3 U6 l2 \% V( v: y dp.cNamedArgs = 0;/ p* K' R: c. R# j9 l4 k2 M
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// Call IDispatch::Invoke() y0 Q1 s+ @: h2 |$ C
1 r0 ~" c3 v1 q+ ] hr = m_pDisp->Invoke(" e3 X' J& Z# n6 x5 {7 U
pokeID, : V* Q2 M9 h' o) D6 C IID_NULL,7 ]) A4 G8 j1 P2 n; C
LOCALE_SYSTEM_DEFAULT, ( o6 B9 X4 A- @' o$ F* T DISPATCH_METHOD, , U) m. i& [1 M &dp,( a j* I6 \ ~1 X7 f
NULL,) ]/ q$ Q6 d% T, P, E
&ei,: _, f5 l8 y! m2 U
&uiErr);# {6 q( P& S! `; l9 R
' a$ C$ E# Q$ k# o4 S- M$ `2 [ SysFreeString(topicStr);7 R$ c9 C' [/ [: E, K8 O
SysFreeString(itemStr);! u. D" @$ F- v, H6 c- U
SysFreeString(valueStr); 8 {8 y7 |4 T$ }# b# M# r' y * S; c1 ]* ?, H: G5 v1 ]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???" c; k1 M% V j: W7 C* 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* e/ b* K, @" E! j o* A7 S( p; ^
5 A; m; z) ^ s# \$ M8 S& [ 5 S! n( S$ z+ h# N- H/ Z& J n2.这是request的程序3 S x& r9 p: z# N6 n
// Request a value from Extend$ K' z. g& a+ Y$ t
//9 o+ p5 T% V' a- k( S
// Initialize the variant that will hold the BSTR. Set the variant's 3 f% Q+ q4 c5 I* J- m5 Q! I// type flag to indicate the fact that this variant holds a BSTR. Place the) C( R4 B3 W" v" m/ N( l
// BSTR into the variant structure.0 ~7 U6 b: A, l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 n! J* y8 g0 c3 _. {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 a/ Z% `0 L1 q- b2 p VariantInit(&requestVariant[0]); 3 u/ N2 p7 Y- J# t3 O
requestVariant[0].vt = VT_BSTR;( `3 _. G( o/ j5 o0 C
requestVariant[0].bstrVal = itemStr; $ R4 ^/ g* k5 T+ i/ R- F 2 ]" o2 h! N$ H* u topicStr = SysAllocString((WCHAR *) L"system"); 9 _) P+ W7 F" h2 w VariantInit(&requestVariant[1]); 9 F' U$ ~, I6 d8 ` requestVariant[1].vt = VT_BSTR;3 e4 h* Y& J$ x/ T! `* t
requestVariant[1].bstrVal = topicStr;* i4 R* H6 P: D! B% Q
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// Set the DISPPARAMS structure that holds the variant. ! N$ b( z- F- T+ H/ ^# N4 k% p5 l' P
dp2.rgvarg = requestVariant; % W! r6 P$ S, P3 E0 X2 h dp2.cArgs = 2;/ W/ {. n) ~# \) u
dp2.rgdispidNamedArgs = NULL; - s; G* w7 s% A: w( C( W8 s dp2.cNamedArgs = 0; / a! e4 _* _) ^) j/ @# L1 T8 F5 \3 p5 C0 o* w m2 ]
var.vt = VT_EMPTY; , `. W0 g% t5 H) k! Z8 r" `" U
// Call IDispatch::Invoke() % g2 n6 x& M' J: p: z p! T / k! J4 |# z; [7 ?9 H: r/ T3 p hr = m_pDisp->Invoke( * i: P: {& ~4 ?. p, z requestID, 1 ]9 }# y3 s# n; @) b `9 |9 e IID_NULL," z- I% W7 y4 a
LOCALE_SYSTEM_DEFAULT, 3 Z" p" D. E! C6 @ DISPATCH_METHOD, " G+ |; N' d1 f0 o6 F. ]4 m &dp2, ; A) a, d" V7 m( S E- {4 d! k &var,1 {' ?: q2 b9 y- v3 n0 x# v+ F$ i
&ei,1 {% f( L) e+ |, v5 I& g8 B
&uiErr); / L9 Q% O. n) T4 ?- Q! ~& A, ?5 a& N, [! n" S# S
SysFreeString(topicStr);0 d) T( r# a W0 K( U' N# D, Z
SysFreeString(itemStr);+ d& m* s+ Q* s
请问该程序是获得extend里面的哪个值? : _2 ~, u. t4 Q1 A" S b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????