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: " R) S% u" W+ s, ]/ ?6 t/ h* LName = (WCHAR *) L"Poke"; % }2 R# B0 U$ j2 T) e- O- o0 W" Z, H & u5 Z; ^8 A/ \5 N
hr = m_pDisp->GetIDsOfNames (/ }/ r% r B! d" O; h
IID_NULL, // reserved" ^" v' y/ U! }1 ?- z1 _
&Name, // Array of names to get IDs for: Q$ |1 Q! u1 x; i) Z9 ^% ?
1, // # of names in the array' E; `; G$ B+ C* Z) v( d2 o# Z
LOCALE_SYSTEM_DEFAULT, // System locale. `7 h! r- |9 ?0 k+ h! K
&pokeID); // Array of IDs to fill on output- j$ l- f1 C7 j- I
' m2 Y, r+ |0 A- b B4 O if (hr). @* _- i& Q# S6 c* Q/ s0 v# F
{ , B r/ z7 ]( X+ M MessageBox ("Get Poke Unsuccessful");9 S( Q. E$ S; k- V" K
return; 6 [* O5 f) ~* s! ^ } - S6 G. Y6 ]! U. p4 d. ]* n' F+ V0 [" Z: g" e8 m1 s! {& D2 q9 _
/**************************传递数据给extend**************************************/ % b9 b* m4 G6 U2 m# U9 c$ v' ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' O% U6 N, T5 _) A
% @6 Q8 v( v- N" A9 o# H! s* k3 [; U
valueStr = SysAllocString((WCHAR *) L"1232"); 9 P U- y( s0 K VariantInit(&pokeVariant[0]); - y! P* t% b4 T7 \4 r1 ]
pokeVariant[0].vt = VT_BSTR;7 g2 b4 H G& {
pokeVariant[0].bstrVal = valueStr; 4 Q! p1 N; }+ p2 ~- I# }0 l' T3 u. S+ T9 H1 t& {( j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; \8 _" j( ~; e0 Q4 F. O3 A/ [
VariantInit(&pokeVariant[1]); ' ^ @, H# S9 w7 {- q
pokeVariant[1].vt = VT_BSTR; * m# M, F7 i/ z* V" a9 z pokeVariant[1].bstrVal = itemStr; / Y+ n9 l9 Z4 ?* P+ @* y, R+ J- d' \0 S ]
topicStr = SysAllocString((WCHAR *) L"system");9 y) E$ ^( ^0 r) Y: l3 ~
VariantInit(&pokeVariant[2]); 5 X0 n7 {2 B5 {+ `: d' T pokeVariant[2].vt = VT_BSTR;6 w, p3 v& F5 }' _9 _' ], s
pokeVariant[2].bstrVal = topicStr;( w1 D/ v, a' }. B1 K
* p/ H6 c" X9 M// Set the DISPPARAMS structure that holds the variant. @ Z0 N8 N1 b- U% a. j0 X* t' D$ |8 n7 B% p, x o
dp.rgvarg = pokeVariant;: O1 `- V0 X# i: ]' i
dp.cArgs = 3; 9 @' O. \4 N1 `4 t dp.rgdispidNamedArgs = NULL;- K( H K! V8 {# {+ a! l
dp.cNamedArgs = 0; . I: r6 o" S- V9 y9 m& Q* Z: h+ p 6 r" x/ J: L, e5 w9 W// Call IDispatch::Invoke()2 U- C7 e. n/ s0 s9 {+ o( J$ B4 u
9 `: n5 O0 f3 c% {4 U: B hr = m_pDisp->Invoke( $ c! V4 ^5 N6 k/ u8 q pokeID, . N% y6 X( q/ c" \3 @- F8 N* D IID_NULL, ; V7 z/ \2 N }+ E) _2 R LOCALE_SYSTEM_DEFAULT,- P: q( [2 e" F ?
DISPATCH_METHOD, * Z( ]9 j4 F- Z, |. K' I: F) Q! l &dp,- r, X0 X# G/ }4 K; I
NULL,. g1 A& g: `' Q6 m
&ei,# E- p, K+ j" c' I' a# s, X* _9 S1 l6 T
&uiErr);; a. Z! `+ T, I; G6 o" F
) z! ?' {4 |3 Q6 _# N& o! M SysFreeString(topicStr);6 u/ X8 U7 ~; r& T0 ^
SysFreeString(itemStr);3 S1 m' c `, N( X: |
SysFreeString(valueStr); w" u% H7 L8 R0 k/ W v0 C' E! E- r5 s: [3 s
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, `: Y! t3 f* n' D4 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????/ R& k2 j9 l# S5 [) \- p
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% p, R [3 S2 s8 Z2.这是request的程序 5 `, |% p* I# M6 k$ ^8 A! [// Request a value from Extend & W& T" H8 b, v* A( p( j p/// J+ O. }: }! e, R/ C% U4 A
// Initialize the variant that will hold the BSTR. Set the variant's% u) |" P/ \6 W8 h5 [8 z
// type flag to indicate the fact that this variant holds a BSTR. Place the " e1 p, l1 ?+ Z) H# g// BSTR into the variant structure.2 O- q6 s8 V0 p
' N. D& j4 Q- Q% V: @+ h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 e8 F! F. p. X5 G. \, ^
3 q2 T, n% ^/ }2 u) t$ ^1 M1 T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' y6 X4 V8 i+ T1 W" ^# Y VariantInit(&requestVariant[0]); / P4 h) a4 ^! c2 r requestVariant[0].vt = VT_BSTR; , s8 @0 r# _% j1 { requestVariant[0].bstrVal = itemStr;0 z2 \8 Q. u4 z) k
; j D" E1 X" x8 V- A8 m5 ` topicStr = SysAllocString((WCHAR *) L"system"); ' X/ p; }, m# Y- V) W" G VariantInit(&requestVariant[1]); ( ?# g0 Q, v- ?$ i* b, ` requestVariant[1].vt = VT_BSTR; 1 _4 M+ w7 R5 `; p, u requestVariant[1].bstrVal = topicStr;2 W& S; c! n: Q: M
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// Set the DISPPARAMS structure that holds the variant. ! A, f4 I: M8 x5 @- M* M) Z) b! q, v2 d, _! K. I# {
dp2.rgvarg = requestVariant;/ @0 K+ E% B" s! ~
dp2.cArgs = 2; ' v) h {# l! m3 w/ K# s dp2.rgdispidNamedArgs = NULL;0 Y5 x g3 K; y# V+ ]2 ?
dp2.cNamedArgs = 0;. X+ Y! a0 d9 T: o6 s
' k3 q, X( j# u' j
var.vt = VT_EMPTY; 0 a* Y) i; L! _8 O G" j1 b( D' I% D+ _. j
// Call IDispatch::Invoke()8 j! q0 F0 n' W% n% e* n( B
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hr = m_pDisp->Invoke(5 D( B+ X* J' t) s7 Y2 R
requestID, % h, f0 T0 @3 p7 p IID_NULL, 1 z2 v0 d: U s& x- z& J LOCALE_SYSTEM_DEFAULT, 3 n8 B4 M; \6 ]7 c3 K9 }' t DISPATCH_METHOD,3 `2 X0 S' |+ R& {8 I- u/ L
&dp2, - s8 i! b0 e' U# s9 |! o &var, 9 n" V, h5 {3 W$ ? &ei, 2 w% G E, f: j* Y6 v# } &uiErr);" g+ ?* `* h0 v$ }
+ J4 A/ k4 q- ^4 ~/ e0 u; l SysFreeString(topicStr);! j+ L/ J# R4 G9 s" {* s$ k" x
SysFreeString(itemStr);+ w8 X m9 {0 g1 h2 ~* U3 H B( N5 x
请问该程序是获得extend里面的哪个值? 8 b6 T& q! M* P( q! t( V1 [! [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????