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: ' n2 ?2 a5 c( V4 {) R: c' c1 DName = (WCHAR *) L"Poke"; " Z5 c! ?+ i/ L Z; T8 @6 d7 s . ?# q& k. o. N; R hr = m_pDisp->GetIDsOfNames ( % m; ?; S1 K( m8 ] IID_NULL, // reserved 1 N6 v0 g4 P0 W &Name, // Array of names to get IDs for H. E1 W ^' ]) }. l
1, // # of names in the array ( e+ t# L8 W, G, U" V6 k! M& E LOCALE_SYSTEM_DEFAULT, // System locale$ n% q/ t) c6 ?7 S; J# l1 {
&pokeID); // Array of IDs to fill on output- G7 Y D$ h2 i8 O
7 m9 V8 ?' P! R: E% Z* q7 @ if (hr)7 Q# V; i* Q% @6 f
{ 9 {: L4 w9 M7 H# V8 H# p; R8 e. i MessageBox ("Get Poke Unsuccessful");2 m4 \, u; A5 ]
return; U" ~* E" z6 B, ]
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# {( M. l& `1 U
/**************************传递数据给extend**************************************/8 S- L) L' R5 f! l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 W3 H$ g- P- O, x4 k9 h ) k8 o3 ]. e4 R- ]) K" L! {( g valueStr = SysAllocString((WCHAR *) L"1232");$ y' I$ L4 b: G6 y
VariantInit(&pokeVariant[0]); " n/ e- N7 p' {3 ]$ F) R* ]
pokeVariant[0].vt = VT_BSTR; 9 O- v& b5 ~0 D, ` pokeVariant[0].bstrVal = valueStr;) |5 a: i+ v. c
2 m5 k; A9 F; d2 G; {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - j$ h. K: m0 j5 L5 \* _& ~ VariantInit(&pokeVariant[1]); 3 y2 I) f& s l pokeVariant[1].vt = VT_BSTR; + Y2 U- d' h4 k. E3 j9 ^$ ^$ b pokeVariant[1].bstrVal = itemStr;5 K/ N+ M2 Y( h
/ m7 @' e: e0 Z" K topicStr = SysAllocString((WCHAR *) L"system");7 w' ?2 v) Q2 S; z) I8 K
VariantInit(&pokeVariant[2]); $ n% e1 v( N& B2 @
pokeVariant[2].vt = VT_BSTR; ) Q3 \; P- n6 J# e* U+ x pokeVariant[2].bstrVal = topicStr; 5 Z/ d1 j# M) Y* ` d: {$ ]6 J) y m C" e5 Q k9 {// Set the DISPPARAMS structure that holds the variant.2 A i; p- `7 ?6 g- V% K3 T
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dp.rgvarg = pokeVariant;- D& k" N9 l& I, Q
dp.cArgs = 3;0 z3 C r5 |" ^6 {. y' s H
dp.rgdispidNamedArgs = NULL; ' D3 x* D) U* m2 w% T dp.cNamedArgs = 0;6 F0 C5 ]7 x9 F! G5 g
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// Call IDispatch::Invoke() - }0 q+ p" c5 r9 W% b) I; V1 V: E9 R, H$ v- d
hr = m_pDisp->Invoke(, P! q7 J/ X7 t, i/ N3 o7 i
pokeID, 4 L% q% L& N) V; A) @# h IID_NULL, , E4 ?# x f# n% T LOCALE_SYSTEM_DEFAULT, 2 r$ C6 B2 u8 a3 H7 Z3 f+ Z* k DISPATCH_METHOD,+ k C! T* Y+ D5 ?# P& V
&dp,0 Y! h. t+ u% ~ N3 B& g
NULL,1 _* \: |" z: s
&ei,1 G7 a" I- j: J, V( I4 F$ F6 `
&uiErr); 6 A# e S3 k1 V- S2 u 0 L, `1 R Q: E6 i SysFreeString(topicStr);# V3 q' V O8 I* k
SysFreeString(itemStr); " c9 e6 L# P1 X8 x SysFreeString(valueStr); 5 ?" K6 ^8 z4 v& m0 u6 V! T( o- ]# R3 x4 b/ [8 Z# d
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??? 4 T8 a3 h# D: J, _+ w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???? ( {! W) O Y8 ~, \$ ? : I4 {* ]# y2 ` r+ t+ Z( O/ a Y! s. h& N0 T6 U" M% Z, h
2.这是request的程序* `5 E, {; Y$ ?) w8 ~ w
// Request a value from Extend1 A! w# C" q0 h9 a1 x! Q1 |
// 7 p5 ]$ l9 L4 L6 ]: i// Initialize the variant that will hold the BSTR. Set the variant's- C9 q! l' U* k% z# i0 y* M
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 x% g* q" |: H! X- C6 y// BSTR into the variant structure.' Y/ ?+ x) F: }1 Y/ V# ]