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:* T+ ~" s8 a2 [" |/ [4 y
Name = (WCHAR *) L"Poke";) p! ~- n6 ~. @3 J
' p' V g( U2 }( X! T( ~/ k' q( G
hr = m_pDisp->GetIDsOfNames ( 2 @2 J f: j/ L& p* q' X IID_NULL, // reserved . N& r; f0 N* j0 t% B1 D &Name, // Array of names to get IDs for ! [9 m7 G3 m" D1 f) M; d' @5 S' j 1, // # of names in the array 6 v8 c# ? U5 t* k% q; } LOCALE_SYSTEM_DEFAULT, // System locale 3 T0 W8 u4 m: n1 }7 B& \) D" N &pokeID); // Array of IDs to fill on output% }: S- {% W$ U9 |4 ]
0 K6 { \- k; n( u if (hr)( y) _( R" p, B
{& o* `3 \/ e2 `7 F2 G6 i" Q* T$ ~
MessageBox ("Get Poke Unsuccessful"); ) r+ ~' j' M' v& Q1 y1 { return; 2 |2 l: h( Q% k% s- H } $ q1 w; _. \4 i) ~; \) L) e. }6 R6 O+ p4 c U
/**************************传递数据给extend**************************************/ ) o: p m; \3 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) m3 n6 T# u/ ~8 r ' f7 z' c0 J( v0 y
valueStr = SysAllocString((WCHAR *) L"1232"); 2 q! }6 \0 b9 C% U& S VariantInit(&pokeVariant[0]); 1 ?5 [. Z# `- h% O' n; \* _ pokeVariant[0].vt = VT_BSTR; ; K& [ Z* P# z: z: r8 T( a pokeVariant[0].bstrVal = valueStr;( s" H: G# Q5 f ^2 @9 t
# Q* L# J7 K# ^! V9 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) q3 x' u* Y7 B; x- ~; h, s" ~; Y
VariantInit(&pokeVariant[1]); ! g# v5 F- D7 }) y* ]3 R8 {8 K0 c pokeVariant[1].vt = VT_BSTR;$ Y8 O2 y8 q# J' Y8 u
pokeVariant[1].bstrVal = itemStr;7 E; h {, b; V R! c1 ?+ |
, L; v& I: H6 T
topicStr = SysAllocString((WCHAR *) L"system"); 0 }2 X9 T* m. ^" p0 h& M6 V VariantInit(&pokeVariant[2]); $ U7 `- c7 \2 a p( m
pokeVariant[2].vt = VT_BSTR; 9 c& O; Y5 q) \; u# j pokeVariant[2].bstrVal = topicStr;; m1 n& K, O8 Z8 B) x5 m6 K/ p1 M
4 a. I& B; [* D( c' L' c3 s" O b$ e
// Set the DISPPARAMS structure that holds the variant.( ?) L3 {8 |* z3 C# P
. Z# ?% y+ M0 l4 O5 x: R
dp.rgvarg = pokeVariant;8 e" o' J, d, f6 {$ K
dp.cArgs = 3; ( y9 [- v, P7 ]2 l D dp.rgdispidNamedArgs = NULL;) d7 D) Y( e/ T- X4 ^$ a! d- P. J
dp.cNamedArgs = 0;! Z; l3 ~ E0 p8 ]9 g
" O( _% V+ D8 P
// Call IDispatch::Invoke() 9 P/ _) t [9 q ' D/ a' a- K8 [% s' X hr = m_pDisp->Invoke( T5 D9 i9 ^2 T3 ]% d
pokeID,0 S* L# ^! x( P q8 Z. a
IID_NULL, f, R6 E& V- \3 D M: F f# | LOCALE_SYSTEM_DEFAULT,, F* `+ N q/ ]: r" x: t
DISPATCH_METHOD,- A j. y* i% }4 c) g& V* [
&dp,, t; y1 u% }) n% C
NULL,3 |) j4 [/ E7 N) Z q- G
&ei, * s( x* L: h* w7 u &uiErr); 6 V0 K+ Y0 u/ [5 S { 3 _2 b& L8 }4 H6 n- w ~ SysFreeString(topicStr);- y% x% C/ y4 A8 Q! ^
SysFreeString(itemStr);3 b, U8 S7 M2 W
SysFreeString(valueStr);( g. ^$ q0 \1 w# ^/ ^+ Y) \& X: |
3 p; z' L* v+ {/ h, C l
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??? ! g/ W' t7 X! {( }$ v9 G2 r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???? / n+ U% Y+ W8 n# l3 M' _' K* x/ O' U7 X* g) b8 `, B! U
; X) {9 _9 a; W( s6 b2.这是request的程序 J4 J3 v( C: ~! q' u// Request a value from Extend 3 b9 e% H2 \ X: h0 e+ T8 k( k//: R; @; s+ s8 @/ F
// Initialize the variant that will hold the BSTR. Set the variant's 9 D4 ?# `8 F* C/ g# X/ U2 P L3 }* L6 g// type flag to indicate the fact that this variant holds a BSTR. Place the. L' K' S% s) c3 z3 I$ S
// BSTR into the variant structure.% E' Y- ]" O, K D# e2 W% Y
; g" z3 Q2 d1 r# m. a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 t$ ~; p; Z+ c9 J- N% Z% r6 r: G8 _
% g% l! t1 K# f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ d' R% u! |: F C! w7 A3 b$ _8 V VariantInit(&requestVariant[0]); 5 \; v6 b0 D. ^, | requestVariant[0].vt = VT_BSTR; ) k+ U$ X# Q" T' F requestVariant[0].bstrVal = itemStr; ; l* a3 y; N o! e2 V7 k* o2 k, K$ N0 Z) x; ^% K
topicStr = SysAllocString((WCHAR *) L"system");, M! Q' Y( @4 N8 A4 g) G
VariantInit(&requestVariant[1]); 7 K. U3 S: r1 ]) n( }2 h$ I requestVariant[1].vt = VT_BSTR; 9 j1 S% } Y. f& e3 ~ requestVariant[1].bstrVal = topicStr; F( q, S0 u5 l4 `+ p5 L; a2 C3 D7 f
// Set the DISPPARAMS structure that holds the variant.+ p: Z3 S- t0 A8 E5 c7 R8 z; [
' y+ |7 b, u* o$ C$ c" @ dp2.rgvarg = requestVariant;" m. A3 i* \2 E* W, k1 x- f# e. F
dp2.cArgs = 2; 5 @, p. l* }# k, u; G dp2.rgdispidNamedArgs = NULL;0 ~; t( l f8 g7 w' x* I( ^3 r
dp2.cNamedArgs = 0;. U2 p8 H& j; c
3 N H4 L w" _2 ]' R. @# V
var.vt = VT_EMPTY; / e/ ^& p' R0 P8 V% N0 u- B0 C! {) P! o7 C5 j. V( |( b. g
// Call IDispatch::Invoke() 5 P$ E4 w" T) ~: ^/ t* Q1 r# F$ {; t; \& r$ z
hr = m_pDisp->Invoke(3 r- u' k1 y) a# ]8 f0 `
requestID, " E1 P! [) h3 ?, ?$ ^6 q, L' t IID_NULL,7 P$ }% {/ E0 a( E$ x# C) Q
LOCALE_SYSTEM_DEFAULT, ! k3 e( r s5 Y* B4 z: A DISPATCH_METHOD, , G2 g- Q; d+ ]7 l &dp2, h' d2 _- O B2 q3 i4 `. x1 E
&var,$ _1 a' J% f. @1 m$ l! T5 j
&ei, 3 I5 w0 r2 s7 j# D/ c+ F &uiErr); / Z q. | T3 s + E0 p$ j; u( T0 k$ C SysFreeString(topicStr);$ ]1 l& X3 n& S- Z
SysFreeString(itemStr); 7 I7 P' |! [: I4 @+ k, l4 Z请问该程序是获得extend里面的哪个值? ( E1 [' s7 \6 ?* ?4 ?* F! d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????