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: 9 |3 X2 B: A" @& ^) xName = (WCHAR *) L"Poke"; 2 X3 K+ e7 W9 }1 d , }0 U( Q& x9 L2 o3 C7 Y1 R hr = m_pDisp->GetIDsOfNames ( " u: L* b& `8 a5 o; Y* R3 y IID_NULL, // reserved 9 ]' \6 k2 k1 t; w9 p8 N$ o &Name, // Array of names to get IDs for- m T/ D: N4 [6 D2 n8 U. t/ j; a* E
1, // # of names in the array 1 W5 t# r+ F. A( c% {" ~ LOCALE_SYSTEM_DEFAULT, // System locale + |( S, G! j- l &pokeID); // Array of IDs to fill on output . b- Z( C; h1 D$ m) {7 H& F+ x- |/ W ) p# `$ G0 h+ r/ [- A if (hr), X0 S4 _. d: K* a- g
{ , p/ J3 l0 @- k+ H. f! X3 y' | MessageBox ("Get Poke Unsuccessful"); % {4 H1 E& c! u& b return; % m# o' V! ]4 n5 Q2 ^( l }! q* I+ L3 c s+ Y5 T
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/**************************传递数据给extend**************************************/7 q8 A: `+ K8 M: L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / W. O( L3 K$ K5 p 0 J& @' \; O6 e7 B
valueStr = SysAllocString((WCHAR *) L"1232");1 I) v! c' ?1 \$ N' l. _5 i
VariantInit(&pokeVariant[0]); 6 _$ _" h m2 o! i
pokeVariant[0].vt = VT_BSTR; 5 n# B7 {: k2 b pokeVariant[0].bstrVal = valueStr;. i( {8 Q* ^4 [# j
! S" L$ e9 N( @. A% w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# s; d# h, a( b
VariantInit(&pokeVariant[1]); # {+ T8 Z5 V; }; L, C1 t+ K1 o
pokeVariant[1].vt = VT_BSTR; 4 }9 f& a' `* D( i: H pokeVariant[1].bstrVal = itemStr; - Y/ u, U: ]7 y& L+ Z9 U) a: l/ j$ ~8 ]" A6 D* N/ G
topicStr = SysAllocString((WCHAR *) L"system");; E2 V3 }4 W" \( i
VariantInit(&pokeVariant[2]); : I% s- ^/ N% v; ^9 H Y pokeVariant[2].vt = VT_BSTR; " y+ M7 H4 W; A ?1 K pokeVariant[2].bstrVal = topicStr; ! B1 s$ i3 w4 m5 K! W1 h/ T L0 v1 Z/ l5 M. d( R3 f5 j
// Set the DISPPARAMS structure that holds the variant.2 u+ l) |2 }, e H' o1 q' o
' l, [3 e# _, ?( g( H$ f5 s dp.rgvarg = pokeVariant;; p* }- i* l5 L! i: M6 n
dp.cArgs = 3; ) n. { q9 O6 n dp.rgdispidNamedArgs = NULL;2 w9 g% |6 Y6 g# y5 A
dp.cNamedArgs = 0; + X" R$ z2 p( g% I- S) o" l. G& l" `7 K! _1 n9 L
// Call IDispatch::Invoke()7 h6 b8 ~# h7 R" U. J- c3 ]
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hr = m_pDisp->Invoke( ( Q+ c6 e |- | a- E6 Z pokeID,$ `" h' }" \5 B& e. Z. |# ~
IID_NULL,4 K2 E/ i( h% ?% V
LOCALE_SYSTEM_DEFAULT,$ |; T+ I8 R; s/ P+ @0 j1 C2 [
DISPATCH_METHOD,! X) q- }9 E# Z+ t$ b8 W0 ~
&dp,8 \5 J1 I( l0 u# A \
NULL, / J6 i4 ^( Q$ v) Y &ei, : C9 c% v- L$ r9 x1 P L+ C &uiErr); 0 \! R* O0 w& m/ ~6 [ * A# n [9 U$ \3 S SysFreeString(topicStr); - w" m9 m+ H0 _3 e! { SysFreeString(itemStr);( e* T, S$ t& D" t% P
SysFreeString(valueStr); & _& `2 F8 { P% G0 C1 ^# [* S' f9 a. B+ 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??? 6 Z! Y, n- s: n! ?! j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????4 h0 u, [6 W: P p6 U
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6 X* O5 i1 f p2.这是request的程序 / n! ` ~3 N9 a$ H; T R// Request a value from Extend " X0 g9 U; C: y% a5 u" ?& X//# k; V- U: r+ ?" V% q: c
// Initialize the variant that will hold the BSTR. Set the variant's- B6 K3 Q ?' O0 o& S, _( W
// type flag to indicate the fact that this variant holds a BSTR. Place the; O. V1 w; N" v" E" h* S9 v7 C$ }
// BSTR into the variant structure., L+ ? @6 D) W. n/ F
9 h4 z7 k: O- _2 I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 Y+ o I. @- Y7 H$ i 9 k$ P% A- h9 |4 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( O E9 B/ q! V* G9 F; O
VariantInit(&requestVariant[0]); 0 O5 }' J3 h( {7 W
requestVariant[0].vt = VT_BSTR; ( a3 R5 {/ M9 C5 u6 S! C9 a requestVariant[0].bstrVal = itemStr; 9 r, z% y5 m5 O- y/ m3 A* @: G- U; `/ c8 M) L0 T. ?9 B
topicStr = SysAllocString((WCHAR *) L"system");; {+ r, Y$ @ p( a0 t
VariantInit(&requestVariant[1]); # A$ i1 ^8 C( J2 w& T3 C/ r; N5 I requestVariant[1].vt = VT_BSTR; 6 o3 b$ a# Z# p requestVariant[1].bstrVal = topicStr;( T q9 j7 h/ ^% h! \0 _2 h7 y
) E9 z4 O# t* u ]: G* ~+ `, r; ^// Set the DISPPARAMS structure that holds the variant.! a( y" Q* g' K3 ^: R
! u: ]2 k4 A6 @1 o+ V- U' Q' _ dp2.rgvarg = requestVariant;5 i. M( c; X9 S2 V
dp2.cArgs = 2;% @0 K5 H# f! H& N$ N- z& g/ X
dp2.rgdispidNamedArgs = NULL; 9 V( i& v1 F" x% z dp2.cNamedArgs = 0; / ], J" J( T# @$ h6 t5 u2 i( }7 R. z' ^8 E: I
var.vt = VT_EMPTY;. {6 A3 I1 b* a8 ]* x4 G) l
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// Call IDispatch::Invoke() 8 j# L/ J6 \: r% g4 H6 F: ~+ u# W0 G. X; m' ]9 Q' O- u6 x ` X
hr = m_pDisp->Invoke(- a% G6 p& u" j
requestID, o) @; \9 U2 p' F( Q) z0 F IID_NULL,5 T% K' u) R- X' T8 P. w3 d
LOCALE_SYSTEM_DEFAULT, ; @% |( T* p1 F4 }! P& m$ l DISPATCH_METHOD, f$ M6 d% B! u! ]9 B &dp2,+ R$ P3 \+ V8 ^) u' l7 f' p
&var, 5 z* z; B0 l% z* X3 g &ei, 6 m6 |3 V4 N) Z- k, l; q. s &uiErr); : {9 B4 m+ Z3 x5 W- x v0 \8 ]) O0 N1 P( h( ^& o R4 O) @! _, `) H
SysFreeString(topicStr);$ s; e* u. @% F! V
SysFreeString(itemStr);0 B& p/ ?- i& K# W- y
请问该程序是获得extend里面的哪个值? - S: L5 o% D+ B: l$ `% W: O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????