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:, E8 _0 e4 E' [" j: D7 {/ M T
Name = (WCHAR *) L"Poke";& ]( }& q; j" f4 I9 r+ c
- H1 d& {( ~& Y+ x hr = m_pDisp->GetIDsOfNames ( ' ~4 D, o+ H/ k8 @5 W. | IID_NULL, // reserved8 P6 c3 @/ E# T# G+ A3 S: I( K
&Name, // Array of names to get IDs for- D3 E7 R8 l( z# p' R
1, // # of names in the array ) C5 B# U3 A7 N% v- G7 _' z LOCALE_SYSTEM_DEFAULT, // System locale . S1 [! E4 A- R H. G) j; y; x &pokeID); // Array of IDs to fill on output . `( E7 P# ^$ J9 Y # n$ K- P$ `7 [, T$ f if (hr) 0 \1 @2 g) l9 J! O% \' {( W {% [/ g$ B" O- ?4 B
MessageBox ("Get Poke Unsuccessful");/ C$ c, k# D. O$ T" l) j
return; ; |; o8 Z# V' O6 X) l6 N } / P* Y: `. |0 s, I; J4 A: H' |' H 7 e8 D; X. F% G/ i9 x" G/**************************传递数据给extend**************************************/ + d2 I4 {! ~" m! E5 ~& y) @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 B- }' d& \: d9 Y1 ~6 U6 {- P 4 R2 d% m; B& ^3 B" q. x
valueStr = SysAllocString((WCHAR *) L"1232"); 0 [. J! l) n" q$ g$ m7 e. e% x5 D VariantInit(&pokeVariant[0]); 8 }* {% L, i- O2 h3 y
pokeVariant[0].vt = VT_BSTR;9 j7 e. D+ Q2 j: }8 }
pokeVariant[0].bstrVal = valueStr;7 r2 t5 w. E& W" z
1 \; t, s a# `+ f. j7 z' {# H2 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- q+ T! n' v1 B |% T" d$ H
VariantInit(&pokeVariant[1]); # ~7 I* X% ]7 J# q) L
pokeVariant[1].vt = VT_BSTR; 9 C r+ W# g+ E* z pokeVariant[1].bstrVal = itemStr;; D/ }/ | v. m# h, ?
|: i5 j/ h6 @- ]" _4 p& m/ @ topicStr = SysAllocString((WCHAR *) L"system");7 _' |+ h( Z* u; J1 y6 g9 a
VariantInit(&pokeVariant[2]); ' |5 h: v9 u) u7 l0 ]
pokeVariant[2].vt = VT_BSTR; ! k1 U- K; ^' W( V9 D) t pokeVariant[2].bstrVal = topicStr; 8 I$ q, ~" i% t" z+ g& P0 ~6 M! T: w4 y2 e8 f ]7 u2 `- {
// Set the DISPPARAMS structure that holds the variant. 6 h8 r$ J1 r5 C. ~5 p0 e, Z* m g) s ' s* M! x# r0 v# h. E8 E dp.rgvarg = pokeVariant; & C4 G( S. r0 ]: z& Y% x9 O+ c! z dp.cArgs = 3; ' ?5 g& m: T9 h; M dp.rgdispidNamedArgs = NULL; 9 f. q) V6 U# x& F5 @. n: N dp.cNamedArgs = 0;; t4 [; S) t: r
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// Call IDispatch::Invoke(): B9 K) A7 I( T- P# A- w* N7 k
1 l8 r+ F& M5 E) a! L# z, |$ L1 Z hr = m_pDisp->Invoke(8 l" r+ E2 K4 D& s
pokeID,9 v$ N. V3 J0 z& S' C5 u- O- d- A
IID_NULL, * l/ V$ C9 P. T: }/ F& h LOCALE_SYSTEM_DEFAULT,- q9 H0 e) w5 k$ n, e
DISPATCH_METHOD, & g! j0 M" h7 H- n* v# x &dp,: V$ Z8 i# p+ k2 v9 u% z9 T, H
NULL, 6 J" t+ M5 h* n! z% @3 T5 ] &ei,2 Y7 u6 w/ v8 v9 A9 P
&uiErr);" B( k2 K _ M8 w- l
& u2 t% l) V% g' Z( |9 P7 K3 ? SysFreeString(topicStr); , H2 [ x9 r5 P6 N; | SysFreeString(itemStr);0 ~4 F: |5 L' a( N
SysFreeString(valueStr); p* N; h1 S0 X" \. F) { ; P8 C7 p% h( G9 ?" 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???) S x% u. X3 |& D
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????7 _! E; T' N" {( z
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2.这是request的程序0 ~# B1 o0 C: T5 ?) r. ?- g% u6 R
// Request a value from Extend 2 }# E7 ~1 @& ?$ r- b( R//: s. Z) v" j/ }- Q8 w3 m4 Y- m
// Initialize the variant that will hold the BSTR. Set the variant's ) P( T: ~0 l; `* `// type flag to indicate the fact that this variant holds a BSTR. Place the4 F3 ^& s% B& Z4 z4 t2 c8 g- o
// BSTR into the variant structure.3 Y9 O' y( C, F' A. D
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); t! R# ^ p! G6 I- u# R