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: : q' \- ]0 y7 m8 p( ]) x2 \2 TName = (WCHAR *) L"Poke"; : C8 r; Q9 @# a. E2 z # u U- n7 l4 @" m hr = m_pDisp->GetIDsOfNames (4 o) \6 D+ f5 o5 r$ i% {) a; j
IID_NULL, // reserved: }, U! r2 j7 p4 S$ \& w/ M
&Name, // Array of names to get IDs for % N% ?/ Z# [( z" A" O8 @' Y 1, // # of names in the array& u" P" c) _! _- r; ~* @
LOCALE_SYSTEM_DEFAULT, // System locale& s5 g1 I' X# u* u% s' }' A
&pokeID); // Array of IDs to fill on output , n' y8 h* p, Q) S3 { 0 y# Q% f7 U7 y2 e
if (hr)" W. ^5 A4 j' i. b) A7 S c$ Z
{ * P" _& b3 d: n/ r3 P9 z MessageBox ("Get Poke Unsuccessful");( m6 M T6 b! Y& \0 l$ t5 A& S' L
return;5 M9 P# q/ D3 X2 h
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/**************************传递数据给extend**************************************/# c* Z% Z: g+ Y: b. ?: K. s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 q. o5 c4 R9 M6 w0 q
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valueStr = SysAllocString((WCHAR *) L"1232"); P! V. v' v( i* H& P VariantInit(&pokeVariant[0]); 6 Y9 ]6 h- T! d9 O' f
pokeVariant[0].vt = VT_BSTR; : {7 T, P! g, T/ E5 ]: h pokeVariant[0].bstrVal = valueStr; ; f/ b& }% S+ y& y3 K$ a3 q6 r) w8 `% _9 t" a2 x6 C$ h3 }) i2 H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 y) z$ N6 ^: V2 h# M- r: Z VariantInit(&pokeVariant[1]); . U. O4 W4 S/ W7 |, C0 G
pokeVariant[1].vt = VT_BSTR; ) h: ~1 |5 o4 X+ p2 E pokeVariant[1].bstrVal = itemStr; % `3 ^5 j$ X$ Z2 E+ A( k5 p; X6 P! f+ k) w R: [" I. O# y1 J9 f- l
topicStr = SysAllocString((WCHAR *) L"system"); & _1 q; i/ C. |$ G+ h. c# { VariantInit(&pokeVariant[2]); % G# n1 l0 g9 ^, N pokeVariant[2].vt = VT_BSTR;' c- z/ Z9 s# d: x
pokeVariant[2].bstrVal = topicStr;) \3 W1 T% O) J" w; y% c. O
& ?2 D! |9 `, g8 }0 R, {/ N6 {* X// Set the DISPPARAMS structure that holds the variant. & X5 r2 e0 }: ^ " @) O `6 I$ u# D dp.rgvarg = pokeVariant;/ o8 V2 Q" Y0 B. A
dp.cArgs = 3; 4 n9 z6 s8 B9 d" m {+ |5 B dp.rgdispidNamedArgs = NULL; $ F3 O! H; c1 U1 a! F0 @ dp.cNamedArgs = 0;; j& Z i% t8 `5 D( ^/ r+ d
$ d3 M! ^7 `+ h6 }" {
// Call IDispatch::Invoke()% v' ^+ L3 L. b; p
' G# a) b- S- X5 T% G hr = m_pDisp->Invoke(4 I" o* |) C- d- `" H) W
pokeID, ! E1 V8 l* }5 e8 W5 t4 D# j IID_NULL,3 ]: [' R2 H* X9 V" R4 O
LOCALE_SYSTEM_DEFAULT,0 n/ B7 I; o* y7 g# e
DISPATCH_METHOD, , I! Q7 r9 T9 r, k3 ?0 ~/ l &dp, 4 _+ |+ ~! b$ i NULL,1 p5 b1 {8 L9 w# g, `% B
&ei,9 U" r- ~' u1 x& V7 b
&uiErr); . n# t j" [, e3 ]1 Z4 v. Y 2 n/ L# L+ d b3 v SysFreeString(topicStr);/ z; c8 g' Q$ b4 d3 T
SysFreeString(itemStr);) a1 |$ k7 L' D
SysFreeString(valueStr); " s" A1 O! l) h " @, i5 Z4 [. i! N( |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??? : D4 J! Y, S/ j+ H3 y# K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???? 3 g! ^ y0 w, Z. Z & S' h; P7 s4 c3 L4 O$ x1 q, ~( J l$ `
2.这是request的程序. C" l' {2 W8 X6 n
// Request a value from Extend ! o9 z9 J9 U3 f' v6 R0 o//* p* `2 Y6 ], W/ t" X% K
// Initialize the variant that will hold the BSTR. Set the variant's+ N6 |& g, v9 B0 y+ `( Z. k
// type flag to indicate the fact that this variant holds a BSTR. Place the ! F! J; g$ X7 P1 N// BSTR into the variant structure.! s7 Q/ Y! v% z% a( g, ]
, P$ G, e$ R4 k6 d- Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ l' x! A+ a$ P' o6 \$ r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 g+ F, W- G9 b8 a. G" L% m3 t5 w" s
VariantInit(&requestVariant[0]); " W% _4 {, X6 Z requestVariant[0].vt = VT_BSTR;2 s) u2 J) ^+ l7 Z
requestVariant[0].bstrVal = itemStr; * N% ]. }: Z( j 8 V, k' D5 _# g, V7 x3 Q" _ topicStr = SysAllocString((WCHAR *) L"system");4 Y6 j7 a! d) F
VariantInit(&requestVariant[1]); ' z6 W* o, Y4 y0 v4 C& Y4 B
requestVariant[1].vt = VT_BSTR;" C) s& F! P& X! h! U
requestVariant[1].bstrVal = topicStr;5 K' G7 o1 d3 ]
5 `/ ^$ d) |0 r, I6 _5 |// Set the DISPPARAMS structure that holds the variant. ! m3 v, ^! S) z3 {* ~+ \0 w0 g7 Q$ s0 H( ?. X' |2 ?1 x# Z' ^
dp2.rgvarg = requestVariant;; `! g2 [/ Y3 h. ?* ^
dp2.cArgs = 2; * \" d: l# f5 O$ Z' K o dp2.rgdispidNamedArgs = NULL;( c6 j7 ^2 v( t
dp2.cNamedArgs = 0;; |( v0 W( q, h# R P" @
: C }( g2 r1 q var.vt = VT_EMPTY;6 A( Z& A( a, R) X
0 N( M% H% n: C6 @
// Call IDispatch::Invoke()/ x) G3 z8 j. y5 _+ w) J
- M* T* _3 s( a- Y3 \5 I hr = m_pDisp->Invoke(/ i- y$ G5 |. q' i' c- p
requestID,! ^! D0 u* Y# s; L- ^* k% Y8 M: G
IID_NULL,' ?8 X/ \: G: Y) e( p
LOCALE_SYSTEM_DEFAULT,. P" A& z0 L4 R+ ~
DISPATCH_METHOD, 8 J. l5 B8 a/ u. K' q &dp2,- R- t9 [3 Y+ K! j6 v$ I( C; [* y
&var,! k$ d+ u" T0 D# e, t* l/ i- W
&ei,3 c) A) E6 z: _1 T8 ^- H2 E1 \
&uiErr);- I) j3 C3 b( o6 _
5 o$ M8 t& i+ ~* @5 \; ~ y# A- H SysFreeString(topicStr); : F+ h0 _+ q' G7 I# Z' E SysFreeString(itemStr); 3 u. q/ z$ [7 P* ]请问该程序是获得extend里面的哪个值?- Q6 c( c) P! Z. V, Z1 Z( O$ s* {; F
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????