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:- ?3 Q3 j; n; [& n; e; y
Name = (WCHAR *) L"Poke";) ^4 n; A( P. O0 W0 e4 g: N
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hr = m_pDisp->GetIDsOfNames ( : K5 o/ q: v' X* T8 h3 h IID_NULL, // reserved 1 a1 T3 d' O# @7 t( W( M2 Z+ o &Name, // Array of names to get IDs for; V, r3 c8 Q0 @+ L! d! d
1, // # of names in the array% _& }7 ]. X, U) z* k g, R6 B
LOCALE_SYSTEM_DEFAULT, // System locale# M% d: ~4 Q/ x& s
&pokeID); // Array of IDs to fill on output i- N9 j0 t4 X- y1 t, ]
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if (hr) ! ^7 r$ \1 ^, e: [3 [# P {% D8 }- |4 y3 u- U, g
MessageBox ("Get Poke Unsuccessful");4 [8 M1 I2 y% Z+ p
return; . Y5 J5 Z: z/ p0 m } S# G7 l" A# ?0 w% l: k' x" P
) \9 _; m* X, Y# @' [5 Y! |$ |/**************************传递数据给extend**************************************/! F9 J$ w4 z% @, x8 A; W. f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 @- Y2 P, [7 v1 t/ l ) X! i) e) q _0 M
valueStr = SysAllocString((WCHAR *) L"1232"); " u6 N7 @ V' E0 ~, C" A VariantInit(&pokeVariant[0]); * {3 {- a* F7 s" Z+ f pokeVariant[0].vt = VT_BSTR;2 N5 Z. N- y9 |$ i; M
pokeVariant[0].bstrVal = valueStr;7 J, X2 J4 M7 i- | s1 _5 z- r
" m8 N& z2 \2 j; D. E4 K% O& J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 t# z8 [$ U- V VariantInit(&pokeVariant[1]); ( i. @' i; b4 r$ i: M' ]* K
pokeVariant[1].vt = VT_BSTR;/ i' e4 _6 d3 _) ]0 z
pokeVariant[1].bstrVal = itemStr; 1 f& c D1 k* {" L# }3 W- e7 m! C $ S; d, b" ]! i1 O, s3 g" x+ l* d topicStr = SysAllocString((WCHAR *) L"system");6 \% r3 u6 j+ l3 @0 z1 H
VariantInit(&pokeVariant[2]); & d. z& `; |3 u6 w" ] pokeVariant[2].vt = VT_BSTR;4 J. E# `. y( B* \" O
pokeVariant[2].bstrVal = topicStr;: W5 T7 ?% G* h
# E( N2 @1 E, G1 e8 F2 n$ W) D// Set the DISPPARAMS structure that holds the variant.9 v6 _0 e1 d8 N. q2 q7 a {
9 U0 h, x, }6 N( Q5 g* M dp.rgvarg = pokeVariant;, Y2 b8 Q5 A( w) G. b
dp.cArgs = 3; 1 c: K0 u% x0 S/ b ]/ m dp.rgdispidNamedArgs = NULL; : z* K6 P* _. j+ e$ @2 |8 ` dp.cNamedArgs = 0;0 f; u6 n7 [8 d/ u* t7 c
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// Call IDispatch::Invoke(). q7 r3 K4 ^6 c9 l
) {+ M) m8 w& h hr = m_pDisp->Invoke( / z: x# t; E, K% P4 r1 p! k! H pokeID, $ j4 h# n$ f' ` IID_NULL,& t4 N% T4 {( i `0 b- u
LOCALE_SYSTEM_DEFAULT, s% g: s/ m* t6 o9 S% I& n
DISPATCH_METHOD," N6 p# t% `- _6 p; Y e% k; {
&dp,. n# | |1 c& r2 M- {; b
NULL,' }6 x. d8 M& ]: P/ g" g& n+ _. |
&ei, 2 u/ j# ^" [4 u" U" O: C w &uiErr); # g, p" v5 O2 q+ Q$ j! t ; [3 Y) h, |- G6 x1 j SysFreeString(topicStr);" a! ]! x- p; v! b5 q
SysFreeString(itemStr); z+ K; o5 R2 U' Y3 U3 }5 p% F0 |
SysFreeString(valueStr);6 Y) o+ G7 K( {( G6 E) B, F$ W
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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??? , r, _. I, 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????8 [ N/ W0 u9 c, ?- u2 X5 k
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4 V7 Q+ }1 g. E# m. y1 S1 D+ j& c3 v2.这是request的程序" j' I# r% i8 P
// Request a value from Extend8 K; F. k. D3 J+ h+ `
// & D3 M' o# I/ s7 Y0 s ~9 O// Initialize the variant that will hold the BSTR. Set the variant's! `% B9 l# |" O9 T* n
// type flag to indicate the fact that this variant holds a BSTR. Place the m4 O, h: H6 J( y5 M" O// BSTR into the variant structure.7 l+ P# f `3 V8 o9 i+ B
1 S Y) U, [0 u; D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 u) q3 j% o. p. D6 E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 t$ K4 C) t, ~' `& I& B8 z% X7 K. \ VariantInit(&requestVariant[0]); $ W$ C& l5 N: y* u
requestVariant[0].vt = VT_BSTR;$ i2 R$ A |! m, N
requestVariant[0].bstrVal = itemStr; C- U# a+ d; H2 i9 k# n% k
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topicStr = SysAllocString((WCHAR *) L"system"); 6 F4 `. n6 J; v5 I VariantInit(&requestVariant[1]); # y4 d/ `0 ~1 R! d- ^
requestVariant[1].vt = VT_BSTR;* w% y! `7 W4 t: o R- U
requestVariant[1].bstrVal = topicStr;/ Z5 m2 T0 C$ t( d; z7 z
, Q( J' w' O! l- `4 y& m// Set the DISPPARAMS structure that holds the variant.8 b$ k, ~- d: y6 u+ n' G' i
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dp2.rgvarg = requestVariant; , D( R8 E# g) e3 e- F( m" b dp2.cArgs = 2; 4 e9 h, D% C; |. Y9 ?) r dp2.rgdispidNamedArgs = NULL; ! @& P# i- ^ P dp2.cNamedArgs = 0; R! q; f3 i3 @/ Z
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var.vt = VT_EMPTY; 7 ~6 k( g! w- ^8 q; Y0 P) Z * i0 t* d$ T% ?/ P$ J# Z+ [// Call IDispatch::Invoke() 8 a5 n0 Q+ t. P7 _ 8 v* t5 e' j4 {5 L, D- ^0 x" S0 P; ? hr = m_pDisp->Invoke( ; ~4 `5 @+ t2 ?1 m" S- P$ q requestID,. }* }7 |9 R, h/ }
IID_NULL,) @8 K/ U& R& ^7 ]7 J1 ~/ k
LOCALE_SYSTEM_DEFAULT, 7 \* K! }! F/ g" M1 {1 O DISPATCH_METHOD, ( E0 i" O) e W1 J! M/ z3 g &dp2, 1 @5 |9 P. c( S7 x &var,% i) ^; ` q: K
&ei, ) a% o4 N* O$ {# _ &uiErr); - ?4 t/ M; l% B" H ]" r* D( e- G6 I; |
SysFreeString(topicStr);! i( F- v' f( A9 C$ M
SysFreeString(itemStr); # V$ s) E) }; b. N. d4 ~请问该程序是获得extend里面的哪个值?4 c2 `; D9 Y2 j# ], L1 L
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????