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:& t6 |/ u; P9 k0 ]* ?) K: l7 v
Name = (WCHAR *) L"Poke";% L {# F9 u; q( A2 m( K& i
3 W* [, x2 g% I6 y4 O" D" T hr = m_pDisp->GetIDsOfNames ( , w9 P, a% [' I$ Z0 I! T6 t IID_NULL, // reserved+ s9 s' g$ b" z
&Name, // Array of names to get IDs for/ M [4 V- W* H
1, // # of names in the array q7 p9 G. C% B LOCALE_SYSTEM_DEFAULT, // System locale; \1 M' z7 l/ d. k* D, Q% Q
&pokeID); // Array of IDs to fill on output; |, t- J2 r: @; k
: l5 E8 s" j! e if (hr)" s( A5 ~. n! ]; ?" x# N+ o
{ % P' @9 Y+ `4 `6 P3 F MessageBox ("Get Poke Unsuccessful"); ; \% v2 x+ }9 S% I5 G3 k return; 2 S2 S: K1 R2 @* E1 f }. {! |% A! @% X0 P+ ~
; h- B+ d# U6 ]/**************************传递数据给extend**************************************/ 4 j. O) _2 h; d! L8 c! f4 ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# R u o8 M0 |5 }* [
& d, V" d- |2 W3 f* N2 r valueStr = SysAllocString((WCHAR *) L"1232"); " w* D) W- w; a0 {" E VariantInit(&pokeVariant[0]); 1 t5 r7 X/ I: e pokeVariant[0].vt = VT_BSTR;' e' r+ }( z* m+ s
pokeVariant[0].bstrVal = valueStr; ' l5 a% }' w: A9 k1 N. G4 L! r7 J0 C7 }4 g& A. |/ d2 W7 r( u& z& b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 F5 ?" C/ E" S VariantInit(&pokeVariant[1]); , g2 O2 i' c! k' c pokeVariant[1].vt = VT_BSTR;( N2 v2 k0 t5 b/ v0 Z6 |, \, I2 E
pokeVariant[1].bstrVal = itemStr;4 k# s3 ~" S1 f
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topicStr = SysAllocString((WCHAR *) L"system");$ x- `8 k; o1 x8 d
VariantInit(&pokeVariant[2]); ! X& i ~0 Q/ w [" Y$ l1 t
pokeVariant[2].vt = VT_BSTR; 0 Z, C0 {; g" I9 X! D. o pokeVariant[2].bstrVal = topicStr; , F# k3 V" A+ |; r1 e9 c& s9 P/ \+ ~9 n J0 T2 @
// Set the DISPPARAMS structure that holds the variant.: [: u4 ~$ J' a3 O& G J
" }8 @9 M1 ^* c, J ^2 h$ @! W% b5 ?" V
dp.rgvarg = pokeVariant;0 {' Q$ J9 @+ B D
dp.cArgs = 3;, Q- w. F6 |# `$ x% |; a
dp.rgdispidNamedArgs = NULL;+ A& \' x$ v2 n2 e
dp.cNamedArgs = 0; + ?8 Z; L% e4 ~! t% ~' K7 {( E & L. P2 f: }& [' p/ \// Call IDispatch::Invoke() 7 K e9 t+ f4 i# m. y T7 } v- |: ]/ T; G5 k
hr = m_pDisp->Invoke(4 }& M! t5 @. g9 K, ~+ S
pokeID,- x* _( u* y" g6 z( x5 E
IID_NULL, ) H6 D7 \# L& {* V3 { LOCALE_SYSTEM_DEFAULT,' [7 D7 M) j5 G& w
DISPATCH_METHOD,4 Z2 ] W3 R# v
&dp,- K' O3 ^/ b2 c
NULL, & p, d" T( w/ N# N' K" Y- _ &ei,9 Y! `2 n6 C) w6 W; s
&uiErr); 3 c3 `7 B3 @5 X3 l+ y( x5 K% X) `
SysFreeString(topicStr); 8 j/ b$ |8 G% |: }/ g2 w7 z SysFreeString(itemStr); ; O9 T+ _! G# {! X8 d SysFreeString(valueStr); 5 ]% T" J. U' I ; l5 z+ C" G2 c& Q i# w4 ]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??? v- N; A8 y! O. m7 @9 t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???? 0 M/ I( D v* Z5 q5 u$ H. j V# A1 ~# y% c# `$ f# k( y
3 G; {8 D. N# m" E) ^2.这是request的程序 ' J N2 f8 K8 k( l/ G i( V// Request a value from Extend ( S: d2 r% @- v( h6 h2 ^// D, V7 b; l0 Z- I
// Initialize the variant that will hold the BSTR. Set the variant's % y7 }9 e/ F$ C# X' R% g9 E5 }// type flag to indicate the fact that this variant holds a BSTR. Place the0 {8 w- ~$ X( d* C9 l& e/ d
// BSTR into the variant structure.2 h3 G2 m3 g( c
" R0 i: X+ n: ^$ v2 E9 s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 h) S- A$ f2 F2 O! q
$ J/ P9 M9 Q! B: Z& B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 o; r% ]6 g- K Z$ M1 f: _9 o3 w' e
VariantInit(&requestVariant[0]); " |- m6 R$ [; l, D! u9 P6 @
requestVariant[0].vt = VT_BSTR; ( }0 L, j0 g1 I) O requestVariant[0].bstrVal = itemStr;# {+ K @2 ?8 S
5 V* L: E. J2 c/ `3 @; ?
topicStr = SysAllocString((WCHAR *) L"system"); ! ]/ c' S" G6 p3 ]9 b% D VariantInit(&requestVariant[1]); 1 A4 g& ?4 k5 P' d9 s! z requestVariant[1].vt = VT_BSTR;9 x: J: n3 h, v$ T# u/ [
requestVariant[1].bstrVal = topicStr;& u- h3 f' B1 P
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// Set the DISPPARAMS structure that holds the variant. 2 B' O. p. c7 b6 k: ^& z' J: ~8 |9 N U/ Q# {# a
dp2.rgvarg = requestVariant; & U+ k' d( o' b. n' N( W8 ^ dp2.cArgs = 2;( M8 g- `1 f- N6 e" \
dp2.rgdispidNamedArgs = NULL; F1 I4 e R% V+ [, d7 d
dp2.cNamedArgs = 0;* Y- j! b5 k& d ~! w# e8 Z
( x. @8 o' V1 h9 H
var.vt = VT_EMPTY; ~& q- o) c% }6 ? ' B' D: `2 {. c3 C( Y, `/ C// Call IDispatch::Invoke()( Q4 g$ I- q4 U, @& b/ `% q% F! u
) Q2 [/ N) ]; g& Y
hr = m_pDisp->Invoke(* I- R; H+ |# O! T6 @& p+ o
requestID," k) m9 i( Z+ S/ v6 H' c \
IID_NULL, + l* `4 n/ W2 r, V& n LOCALE_SYSTEM_DEFAULT,( i7 R% C2 W3 w: g* V3 M5 P
DISPATCH_METHOD, 6 o, i* ]8 Z/ k3 v3 ~ &dp2,# c2 Z, O3 S, c+ Q4 T# s
&var, 4 _! C( ], Q# g* D &ei,3 |9 X! M/ q9 A4 y
&uiErr);" G( Z6 f5 m/ f% Z% K: C
! U, A B: l3 q; K8 p SysFreeString(topicStr);; Q' d9 e$ b7 M8 {/ g
SysFreeString(itemStr); * S& N: g$ N- D6 l/ ]3 r2 J请问该程序是获得extend里面的哪个值? }+ U2 r2 W! a1 M9 z3 [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????