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:- B' G# E1 L% m
Name = (WCHAR *) L"Poke";+ M2 o9 a' P- O$ r
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hr = m_pDisp->GetIDsOfNames ( 7 q/ n- B- T O1 ~+ |/ b" \ IID_NULL, // reserved 0 h- X* ]& ?$ G8 l# H, r# x$ F6 y &Name, // Array of names to get IDs for; K+ x# A8 R' \
1, // # of names in the array3 e* N z5 {# E, G
LOCALE_SYSTEM_DEFAULT, // System locale# ^6 Q5 D- m" M8 w2 J6 m* k; u
&pokeID); // Array of IDs to fill on output : l/ K0 v! n. ]* A( v 5 G" O& ^0 \& M; e' H( b/ s4 ~ if (hr) ; h- f3 G0 W- ~$ h7 Z { / |1 O m; y! K9 o- O* { MessageBox ("Get Poke Unsuccessful");; C- N- i: F/ }$ S6 S) ~8 S
return; & R) G x8 R! @ }# f1 S4 A5 E2 a. M+ F- ?
5 H/ d8 ^2 X: b/**************************传递数据给extend**************************************/ 2 f. j! n4 a6 i& m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 R% B3 \7 V* d( r+ A9 p- O7 U* H% g0 V 1 O1 i% W2 s+ X" n$ J! }( m valueStr = SysAllocString((WCHAR *) L"1232");! H. Y+ D/ _ A, \- u0 s
VariantInit(&pokeVariant[0]); 5 C7 X: n! F+ j5 S& Z8 Q pokeVariant[0].vt = VT_BSTR;! j r3 Q8 O ?+ u4 \3 v
pokeVariant[0].bstrVal = valueStr;3 O2 n1 ` x f6 b( Y* j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! A) v c# a. e' w. R+ Q# `8 R
VariantInit(&pokeVariant[1]); - i9 ^6 s- t& t5 ?" _% q6 I( M: _9 s
pokeVariant[1].vt = VT_BSTR;$ T h- i7 V: H5 w0 q; _. G, J
pokeVariant[1].bstrVal = itemStr; 8 R! T# E: J" x; {7 m6 U/ _5 {) P* ?9 c# B# O+ [ L
topicStr = SysAllocString((WCHAR *) L"system");- l; `, h- S9 h1 A" k+ d
VariantInit(&pokeVariant[2]); / {8 G$ q- i& o+ U3 i5 W pokeVariant[2].vt = VT_BSTR; 6 y$ t0 N' z- N( @% _5 a d, A I pokeVariant[2].bstrVal = topicStr; ! ^ V% c% P4 ?$ t) _4 E9 z l1 F+ g: U) g9 Z! ~// Set the DISPPARAMS structure that holds the variant.+ w# g/ i# E5 J2 E
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dp.rgvarg = pokeVariant; 0 E; ?9 n2 z g- {2 M' ] dp.cArgs = 3; , O: x- K2 w; Z: c dp.rgdispidNamedArgs = NULL;1 l5 ^/ p. _) u2 @) w+ U
dp.cNamedArgs = 0;0 ?- ]6 D' J5 d! `; R
, b ]* A" i K. B: J) W( K5 ~// Call IDispatch::Invoke() % A3 r0 E% j2 }; r$ d" s 8 f& |( S ?6 |+ Y5 ?% C& @ hr = m_pDisp->Invoke(1 [8 q! Z+ z) t7 A8 f
pokeID,/ R H+ O8 D; ?0 S6 c
IID_NULL,9 X- m9 |4 i3 B, a b
LOCALE_SYSTEM_DEFAULT, V7 M$ B H' Z: s
DISPATCH_METHOD, ) A2 e) K* q3 s &dp, ! G7 R9 [' K- k0 h7 D NULL,/ U; }. X+ f: E \7 E( |
&ei, ; ?( P; b' [) e &uiErr); y* n- A! y1 M: I6 a$ r2 i
. X8 B; M* o4 w) J, |* y9 p, e SysFreeString(topicStr); Z& D3 n0 S' A
SysFreeString(itemStr); " @- X9 S- k3 i: _" T SysFreeString(valueStr);8 _( y7 {5 ^' N# q
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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??? 2 m" F( o3 O. B0 f( H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????# ~* W4 e1 D* b8 f
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2.这是request的程序 1 s8 Q E# z7 D) n. I& B// Request a value from Extend & H% _8 W, d! J2 ?! b+ c// , r2 H! x' Z9 j% o0 e, k4 t// Initialize the variant that will hold the BSTR. Set the variant's2 a j9 P8 d- M) o
// type flag to indicate the fact that this variant holds a BSTR. Place the ( T2 J0 E Z; N, P2 i+ I6 H// BSTR into the variant structure.* O; f$ r5 K% a+ L' ~1 L% B
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ i1 d k! @" G9 U