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: 5 H L, f% }" t ^- t, C1 qName = (WCHAR *) L"Poke"; ( I1 T4 T/ E# ]% E8 t M) d9 h( v$ M; m% Q. ] hr = m_pDisp->GetIDsOfNames (% N# n1 @* R! T# j/ f! L
IID_NULL, // reserved: Z8 ^" s, C! U" d
&Name, // Array of names to get IDs for' P5 r. |3 E0 T+ \+ k# X3 r- b
1, // # of names in the array2 w7 K: i9 z) f8 c$ ?
LOCALE_SYSTEM_DEFAULT, // System locale $ Y, ~# P: C% z2 f$ }$ D: k# l0 j &pokeID); // Array of IDs to fill on output/ B& A$ L- |+ Q; x
8 L- i# w) \4 ]& l( `6 z if (hr) * s5 }" D F6 Z; M/ u6 v {4 D8 [* S0 q) v+ U
MessageBox ("Get Poke Unsuccessful");" ^6 n5 m4 ^+ E. e: S9 v
return;: M% l( |7 j3 L0 F3 D5 o
} , i7 h4 }: b0 E/ |( ^, J5 b! f l3 w $ y3 X7 e/ S( F. u; v% e/**************************传递数据给extend**************************************/ 3 k2 @ |( g( R& t2 H# Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / z; h- B3 F$ |, d $ ?* W" {! d! h; }% n valueStr = SysAllocString((WCHAR *) L"1232");& i9 x/ S9 e% j; ~) Q6 Z
VariantInit(&pokeVariant[0]); 7 ~& J! W* ^+ D, l. j; w( s
pokeVariant[0].vt = VT_BSTR;, b H' f5 a7 ?. V" v8 M
pokeVariant[0].bstrVal = valueStr;. ~% `- g" P0 [ p: q9 d& P
9 }8 w) w# F+ _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + `; |0 I2 M# k& l* {7 @. N VariantInit(&pokeVariant[1]); D$ z. W: e$ f) ]) E pokeVariant[1].vt = VT_BSTR;; b6 ^8 E+ w4 o# O# {$ y
pokeVariant[1].bstrVal = itemStr; + \" E6 J6 i4 Q * n0 e0 t0 G. o0 _2 Q topicStr = SysAllocString((WCHAR *) L"system"); : s* N5 J" v( o8 M VariantInit(&pokeVariant[2]); ' ~2 ^$ {3 Y+ e6 v pokeVariant[2].vt = VT_BSTR;/ Q2 V) |7 t% _+ T
pokeVariant[2].bstrVal = topicStr;3 k+ ~" O' M; b* U1 I: E
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// Set the DISPPARAMS structure that holds the variant.8 L/ X3 y W6 s4 F
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dp.rgvarg = pokeVariant; 5 H; }9 `% L& `5 V6 x& J& v dp.cArgs = 3;0 u' ?3 O! i0 F# W, C" F! U
dp.rgdispidNamedArgs = NULL;( u9 W' _5 P/ h* g
dp.cNamedArgs = 0; z3 _ v+ r4 C: Q" w& c( ?( E5 G' a& I
// Call IDispatch::Invoke() + @! K; C: g9 Q 6 Z5 N+ J2 K2 R& o' T hr = m_pDisp->Invoke( * Z! q, K |+ X5 F5 Q% c pokeID, , V6 a' M+ A- |+ n8 c" b IID_NULL, 7 d. f6 V% J/ D- H LOCALE_SYSTEM_DEFAULT, ; d( X5 n! Y9 Y x; R DISPATCH_METHOD, q( _4 f; v% l. U
&dp,0 |0 k$ {' g0 U
NULL, 1 L& |- n) H; n$ O &ei, m+ H. F! M, l+ u1 m, h1 ?: M &uiErr); + d; y. O& O2 L$ z# ? + {1 G) _" r9 n8 r SysFreeString(topicStr);8 E% ^0 r5 z! d! L
SysFreeString(itemStr); 6 ]4 j( O$ G! U. h Y SysFreeString(valueStr);5 R# _! W5 K# X( P
* G( g6 i: I' z' b# L' A- Z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??? _; A: W2 L# a+ p$ o& ?
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???? , y% ]6 q) H" j2 q+ [) H) n) r8 @" \$ v8 R
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2.这是request的程序" X/ W* e9 ~4 \) }
// Request a value from Extend # C3 U% A, P' a0 x2 v// , ], h" n! T/ m% c, u/ A// Initialize the variant that will hold the BSTR. Set the variant's- l; W8 ^+ G* C% N
// type flag to indicate the fact that this variant holds a BSTR. Place the' y# n8 O5 }5 W
// BSTR into the variant structure.$ t# O- z& s/ q4 n
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 x3 p) E- P' o4 T" y
! ~( T% p1 t4 k6 Z# ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / n+ b! J$ j j4 j% X- t9 C2 P: c VariantInit(&requestVariant[0]); , j3 M0 l; k( L5 e
requestVariant[0].vt = VT_BSTR; r% W i& g, |0 D$ C. P8 ] requestVariant[0].bstrVal = itemStr; 7 I4 ]2 C! J4 F+ u; G& F $ K& `$ W4 L/ D6 a9 h topicStr = SysAllocString((WCHAR *) L"system");" }; `+ C( \- p R$ {+ O
VariantInit(&requestVariant[1]); % F- k2 q* Q& m8 Y$ }. m. p
requestVariant[1].vt = VT_BSTR; : k0 J8 i: n' @/ u# n9 @% l9 g6 L requestVariant[1].bstrVal = topicStr; : e2 C8 E5 F" I8 U' y' [+ P( t2 H+ ~2 L
// Set the DISPPARAMS structure that holds the variant. ( u/ D2 H, O( \$ [- A0 g0 r- d9 e" p7 B y W
dp2.rgvarg = requestVariant;$ r5 M) E8 e; E# S
dp2.cArgs = 2; ( ~6 Z5 H7 o' F) q5 [5 R dp2.rgdispidNamedArgs = NULL;: s3 p9 g% w4 f1 h: F3 Q/ }- u. h3 F
dp2.cNamedArgs = 0; - A( f+ z! Z0 f2 n7 T* A . ~0 s. i% w6 e8 }- H0 A var.vt = VT_EMPTY; 8 I" ]# W, b1 {. j7 X0 B3 n; v/ l* o( d) U# Q, \. v
// Call IDispatch::Invoke() W. O' I' d$ ?+ G& M/ [. D& Y6 u7 Y O; U+ F! x4 i5 o# o; W5 o hr = m_pDisp->Invoke(# ]) l! ?7 h2 a$ V2 L. B
requestID," k( j, N0 s- ]$ t4 \" ]+ }
IID_NULL,- R+ \$ a8 Q0 v( N7 W" ^! x: C9 [
LOCALE_SYSTEM_DEFAULT,2 k+ _/ l& E" C4 F+ a! o6 m9 K
DISPATCH_METHOD,# }+ x" w+ |5 ~) I7 G7 h* ]
&dp2, 1 G' Q" N# P( D$ N. z4 H &var,' o. U* `0 c) f* C
&ei, 2 @* O! ]% e, r0 o( s; o &uiErr);: @! P" b* n4 z$ e1 X+ \9 A) K/ U4 V, |
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SysFreeString(topicStr);8 A3 z) E$ E. \8 j% l
SysFreeString(itemStr); 6 |6 d% f) r: |8 J" m6 q请问该程序是获得extend里面的哪个值?9 s. H7 N$ l4 A
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????