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: % O: H+ a% N1 a' s& j+ pName = (WCHAR *) L"Poke"; 8 v: o0 t, _& K* } 2 H4 d2 X+ N, H! i. D9 x
hr = m_pDisp->GetIDsOfNames ( - E5 R8 x' }5 a: T+ q5 _ IID_NULL, // reserved ; r. o4 A* s, T. ~ &Name, // Array of names to get IDs for ; |3 }9 h9 s. ?/ b1 N 1, // # of names in the array & M0 l5 F1 V# a LOCALE_SYSTEM_DEFAULT, // System locale' a4 {0 o5 }$ Z$ t
&pokeID); // Array of IDs to fill on output + d4 }$ O* v6 a8 i) Y3 `4 \4 n2 I 5 h+ c$ U" N( K& K/ [ if (hr) 7 D- f z) T- R2 \ { . \: p j+ p2 s0 Q3 r MessageBox ("Get Poke Unsuccessful");* P- q8 s& I! }3 D: X$ b+ t# k3 c
return;; _6 W% t! t' i
} x9 r9 ^2 A! V" n2 | 5 U& [3 m; k* H/**************************传递数据给extend**************************************/7 \" S: T$ G2 q6 v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 L" E2 K# N# E# R. F2 i5 K8 t
. P: w8 }6 ]6 l3 F valueStr = SysAllocString((WCHAR *) L"1232"); ! V. V5 K/ \/ t8 m: k5 d. V1 O VariantInit(&pokeVariant[0]); * q; o% W) Z! u- Y' N' h8 \* U
pokeVariant[0].vt = VT_BSTR; & |8 F' e, o, O, j8 A* H pokeVariant[0].bstrVal = valueStr;5 |8 x) L7 z0 x$ y
. }; t3 t- C* C/ [; Y. t2 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 W" K- h9 m1 u' y; Y6 `
VariantInit(&pokeVariant[1]); 5 `3 h6 [2 C6 V pokeVariant[1].vt = VT_BSTR;0 U- B' j* \1 j- n$ L6 R) ^# B
pokeVariant[1].bstrVal = itemStr; . q0 Z* l6 l) R5 k# P4 } 5 P5 g0 m/ W3 g d4 K topicStr = SysAllocString((WCHAR *) L"system"); + c% H% ^/ h. H5 {! y, v' l VariantInit(&pokeVariant[2]); 8 U' c5 |5 O1 `' p0 { pokeVariant[2].vt = VT_BSTR;; F( I1 ]: C0 `
pokeVariant[2].bstrVal = topicStr;; L( }6 ~5 {% ~$ v0 v+ ] R
# [/ ?$ f5 c4 N& B// Set the DISPPARAMS structure that holds the variant. 0 t" A) J8 V* { 4 C: u; m- b3 @. O9 L( l dp.rgvarg = pokeVariant; : A& X( G6 w) n! o# X dp.cArgs = 3; 4 U0 @" a! w8 z# C9 F dp.rgdispidNamedArgs = NULL; / n" Y6 y S7 H( q J I6 R h, V dp.cNamedArgs = 0;8 o$ `5 d+ C5 I, B% N( R
e% C3 {4 r7 P7 z! |// Call IDispatch::Invoke()( n. c$ C$ C: [* Y: }& b, E- x
3 u% |; L2 ~# C* M4 p I2 l# t hr = m_pDisp->Invoke(, E+ y: c% ]$ w" V- e
pokeID,) l# K: F1 \& y6 y3 M" V
IID_NULL, & P! X: _& U; `# t! v" Q, @/ w LOCALE_SYSTEM_DEFAULT,) U$ T' }! ~" i+ d( Y8 C! X: X
DISPATCH_METHOD, 3 ]6 I9 P6 Q0 N& Z; g &dp, 7 @* R- Q7 ~$ p. | NULL, + w& B5 l$ j. x9 e7 w &ei,9 H+ y# u) g2 Y5 A
&uiErr);2 w, |' `+ G( ^
' s- A$ l3 O& b! j0 U SysFreeString(topicStr); 2 C8 _% W: y" [' a SysFreeString(itemStr);$ n0 a( U/ Y. |9 M) d$ z/ k' m# b
SysFreeString(valueStr);% Q7 O. q7 R: [6 U! [
" n( J G6 g L2 y! J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??? - w+ F7 r! X6 R# y$ ^) E3 M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 t4 ]) m) {% R. Y
" {, g& l# L( s) Q" C O. z2 G0 F! u. T } [) _" ~2 I7 y
2.这是request的程序# s6 u& I% b- }
// Request a value from Extend/ t4 S, P0 o0 a6 u' m/ e
//3 p/ q1 B$ K8 ?* t- J f
// Initialize the variant that will hold the BSTR. Set the variant's 6 E, }! }( j# D1 ~3 J+ @! c// type flag to indicate the fact that this variant holds a BSTR. Place the # k8 a3 P5 L8 f! Z- c2 V$ Z// BSTR into the variant structure." S# Y, w9 z; J! s6 r U
! y% L3 ` y7 V7 P3 N, I7 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 D* R* t5 d) v3 u+ _ # J. z, Z3 i2 M0 S( @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; P0 n7 s3 s; [6 w( a, b
VariantInit(&requestVariant[0]); 6 n% A. q' s$ F# \5 _* W5 j ^2 s9 l
requestVariant[0].vt = VT_BSTR;+ y5 w! q0 w7 g! D& Q/ g. V
requestVariant[0].bstrVal = itemStr;: d, i S& J$ t
, t h4 {# Z8 H topicStr = SysAllocString((WCHAR *) L"system"); : h1 y6 A' @7 n VariantInit(&requestVariant[1]); C, v- ^7 D. e5 w) h% A7 k: C0 d: r
requestVariant[1].vt = VT_BSTR;) C/ {9 s2 u# Z) h6 G
requestVariant[1].bstrVal = topicStr;5 k1 f% j3 b( n: V" Q% l( v
* b5 V' s! I O) p. ~
// Set the DISPPARAMS structure that holds the variant.5 g) a) [6 W k" ~9 }# {6 l
L6 u' K$ i4 C, f dp2.rgvarg = requestVariant; # O; L+ u$ E) U2 }& q9 Q) P( _ dp2.cArgs = 2; % v3 |3 z: ?& `" e$ p dp2.rgdispidNamedArgs = NULL; 6 _+ N* j6 b9 {. h: w. F6 @ f6 I dp2.cNamedArgs = 0; ' m$ T) Z4 e! d1 A. a% R1 X5 I! g# V4 j7 i! D; n% A( B
var.vt = VT_EMPTY;6 l' o, s- V- `" t5 c
% l: X+ I& Y" f6 r2 c7 V6 d// Call IDispatch::Invoke() 0 ~' j0 W9 G7 Y 0 e$ `7 P' b& x8 \- z hr = m_pDisp->Invoke( ) B6 T9 {3 E$ b X) z8 b requestID, / x' a# [ u3 T4 @5 v4 V. F# K IID_NULL,% B- Q% y( l/ l
LOCALE_SYSTEM_DEFAULT, 8 ?9 Z' j3 |: [& X& o) @ DISPATCH_METHOD,3 e. W$ u8 ]8 ~1 B" p4 W A
&dp2, 9 I, B0 s9 c4 k" ?0 `3 S &var,: u2 x; ]% |4 Q% L+ X8 }. B: p5 y
&ei, 7 k+ E6 P8 @8 ]/ W &uiErr); ! L+ r! z; I: F# e4 G6 y0 P( A) M4 H! G/ a7 Y
SysFreeString(topicStr);# M. m% }& M) F( A
SysFreeString(itemStr); - H7 O+ W+ }# y1 t# c请问该程序是获得extend里面的哪个值? , I. g5 r+ U0 s1 x$ c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????