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: ' V2 [" e8 H8 B# z# `Name = (WCHAR *) L"Poke"; & y- T; C/ r. N2 } $ X( P, r' C! l* |+ \+ [; c
hr = m_pDisp->GetIDsOfNames ( & Q" u- y2 k' W IID_NULL, // reserved; }, g. L9 [% R4 V. p+ m. ~
&Name, // Array of names to get IDs for 6 `+ i' @& I! R& I& n 1, // # of names in the array7 U; z8 K7 F; m6 d B0 H5 d
LOCALE_SYSTEM_DEFAULT, // System locale " E1 P; A5 ^7 J0 Z7 O l &pokeID); // Array of IDs to fill on output( [3 o7 @) {6 m6 u4 Z
6 C( R8 h2 v7 h if (hr)- D' s' `& w4 ^
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MessageBox ("Get Poke Unsuccessful");( x0 z3 o3 X0 w8 N- O( J
return; / I5 S; _$ N: \5 s% {9 [ } ! j& ]& f0 W/ X6 J" a6 F 1 r: ^. Q P* M% v, P5 n5 ~' _1 A/ h/**************************传递数据给extend**************************************/% S8 n. R' E& t0 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); D9 `4 {/ R- O* b9 Z, Q/ w - Q( P; b* B8 r; v valueStr = SysAllocString((WCHAR *) L"1232");2 P7 I' R6 V8 ~" o$ V1 y! H
VariantInit(&pokeVariant[0]); , n* a8 S- S! { G; b( k2 u
pokeVariant[0].vt = VT_BSTR;! m. V$ m% s+ Y, B! W- o
pokeVariant[0].bstrVal = valueStr; l$ D! k. l: c& M8 s # j1 ]8 x: C! N; K8 E6 O$ r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 m8 X/ O: A" c/ Y/ e
VariantInit(&pokeVariant[1]); * W! ]: k) ^7 }$ s! k8 }
pokeVariant[1].vt = VT_BSTR;% ]$ M. o' M0 b/ f# R/ h
pokeVariant[1].bstrVal = itemStr;2 u# m' z: g* S. F: R7 O
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topicStr = SysAllocString((WCHAR *) L"system");* A" n$ E1 B, S
VariantInit(&pokeVariant[2]); / K- p" [4 w+ g2 c9 W' n7 Z
pokeVariant[2].vt = VT_BSTR;/ I* y' B( ~! t2 Y! ~$ V6 \
pokeVariant[2].bstrVal = topicStr; 6 ~7 w+ X; N. a G+ U* ~ - c5 a: x0 A `3 s9 L8 r// Set the DISPPARAMS structure that holds the variant.- w# G- t6 C2 e6 d
6 G4 p# p4 k, t& b- @ dp.rgvarg = pokeVariant; ' m2 n9 j* p* |* P$ U7 ? dp.cArgs = 3; & [, z3 C1 t: f! H% a% x dp.rgdispidNamedArgs = NULL; 3 m9 [% @% x N, N2 e; x dp.cNamedArgs = 0; 0 ] |4 o. B }+ e- K. y 2 n/ m1 e# ^9 P v3 X) d1 u$ H// Call IDispatch::Invoke()- f* X2 Z' w3 f& A0 z
2 s# }/ `. Z& v* E( r9 R hr = m_pDisp->Invoke(3 E* O* r- x! n+ U
pokeID, 5 m8 N" l) }6 g1 Y4 n- n: X) l IID_NULL, # N9 [# k( m! _4 @8 n' ] LOCALE_SYSTEM_DEFAULT,. ~! F- R1 u# y
DISPATCH_METHOD, $ q0 c5 E8 A$ b/ y &dp,& g+ y6 ]- | I) m
NULL,3 L' |8 v8 g( m# O
&ei,& P3 c: K4 n( _' H% }
&uiErr); # P+ K3 |7 @2 G% B, j% K : [, s. W2 P6 M F6 { SysFreeString(topicStr);/ Q$ F5 e$ y, V* C
SysFreeString(itemStr);' w. }9 E2 r* y9 a! L$ i
SysFreeString(valueStr); 3 e/ v; n: P8 I0 \ 4 F2 E/ d" ^$ E' P; B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???. t) S% S& @0 [2 x
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???? # k( `1 d7 B5 m5 X9 p' |% v # H& L; _: F: j' X$ C: d8 J2 I+ y: O2 \& X. S5 c( S6 S' g
2.这是request的程序 9 `$ _9 g1 G* h2 m6 P// Request a value from Extend ) M" T7 q4 y! j8 f' p! o* k// + n9 K: G2 k; L/ u! x// Initialize the variant that will hold the BSTR. Set the variant's 7 G e5 \9 R: [/ p3 W0 K// type flag to indicate the fact that this variant holds a BSTR. Place the 1 j5 x! V) `" I7 p// BSTR into the variant structure./ e. M. x8 m- F1 [+ T2 U/ t
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " o" d8 p( Q6 l) a4 [) C! L , ~0 j" O8 F; T8 G6 f9 s }7 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 q& K8 h# v" p+ _' M VariantInit(&requestVariant[0]); 0 `. `# x* ?+ a8 s requestVariant[0].vt = VT_BSTR; . G/ \1 s% K$ X3 t& V requestVariant[0].bstrVal = itemStr; 7 F) b' ^) e8 W7 [: a4 n + s# j1 W4 }0 M: e. p; @ topicStr = SysAllocString((WCHAR *) L"system");3 \+ F" J# g0 W7 @$ M$ |
VariantInit(&requestVariant[1]); ! Q. R; w! K; }. a+ l5 v
requestVariant[1].vt = VT_BSTR;% ]9 M: } j# p; t1 ?
requestVariant[1].bstrVal = topicStr; ) ^ p. q4 }- Q+ r8 A& Q ~2 j! n
// Set the DISPPARAMS structure that holds the variant. # J: H: h/ U7 P8 n* k( ^/ b2 C8 _9 L' f7 B9 g) T
dp2.rgvarg = requestVariant;. t; y% M2 W1 b
dp2.cArgs = 2; ) u+ `! \$ m, P& a8 v0 P& u dp2.rgdispidNamedArgs = NULL;5 W8 e6 _) w3 }9 ~8 P; Q w8 F }
dp2.cNamedArgs = 0;8 R8 v* E- H; Y/ q