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:1 \2 i- D1 `. m4 T6 q
Name = (WCHAR *) L"Poke";8 O$ O+ q4 a. }4 H- N, F
& ?0 g1 F. W& n) [ Q% p; ]9 Q hr = m_pDisp->GetIDsOfNames ( ~! b, h2 F% x. Y: B: y! H IID_NULL, // reserved5 n; W' j0 f [. h3 W6 ^
&Name, // Array of names to get IDs for6 W& }/ J% n5 t }+ b& M. h7 h
1, // # of names in the array 2 F! d r' ]$ K$ k0 m9 k LOCALE_SYSTEM_DEFAULT, // System locale 8 x% }. Q' ^. y9 V1 H3 f/ h- m &pokeID); // Array of IDs to fill on output t$ O& J. R3 \) J% `
/ O' b% ~7 v* U7 N: z if (hr) , l0 W" L$ {) l( Z/ D# K+ a$ p { 1 L( d* I4 d6 b; L6 F3 [ MessageBox ("Get Poke Unsuccessful");, _9 e, C& [$ J1 @
return;7 T" c" z* N; q( ?! \2 j
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/**************************传递数据给extend**************************************/2 m+ t: u0 O. b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % q7 S J n1 b + s% I- F7 B7 s( r valueStr = SysAllocString((WCHAR *) L"1232"); 3 y/ ~# k( z1 ]- \ VariantInit(&pokeVariant[0]); 4 c+ Y5 V- I7 y. f' f8 X( S pokeVariant[0].vt = VT_BSTR; $ N( }4 z/ [9 D& e* S pokeVariant[0].bstrVal = valueStr; 6 M6 y2 s+ S% ~4 ]9 D : x, |+ y% _( t7 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . @$ A, W& J& I* A) ?5 {; L% b VariantInit(&pokeVariant[1]); / l# z. ]' X Y
pokeVariant[1].vt = VT_BSTR;: G; S5 p9 s- A) n3 E4 G
pokeVariant[1].bstrVal = itemStr;2 K. j' M8 H3 \( O: Q) X7 |
5 m4 f) n$ d+ ~3 w' o5 {- c topicStr = SysAllocString((WCHAR *) L"system"); 8 G% t$ Q1 T. ~ VariantInit(&pokeVariant[2]); ; s7 [$ y) \8 q j$ B5 \+ D pokeVariant[2].vt = VT_BSTR; " p) Q7 d$ s! O; I pokeVariant[2].bstrVal = topicStr; & h; M: G. O) J0 g ) i9 G( q9 u% h% ?3 E/ l// Set the DISPPARAMS structure that holds the variant.& s" C5 \0 b, S9 I' o/ f, A% L1 W6 c! S* X
5 s S7 Y% [5 G! h& P% D5 D w dp.rgvarg = pokeVariant; ! t; m2 p# t2 k dp.cArgs = 3;+ ]3 X8 e o& l$ u8 _7 n5 \% U
dp.rgdispidNamedArgs = NULL;+ {$ ? M# v7 h8 T
dp.cNamedArgs = 0; " | X" ?. k3 S: V( G8 ~0 j" {' G& f/ ^9 \6 n) L
// Call IDispatch::Invoke()' u0 x1 L2 h+ P3 V
k1 H* Z) t/ d( t/ X5 D hr = m_pDisp->Invoke( . `" k% \. b- X+ [ pokeID, 1 ~: i9 Y1 z# A& N0 K IID_NULL, 2 x' d! f- i1 n" N LOCALE_SYSTEM_DEFAULT, : P+ E: t p9 P/ ^/ g6 \3 k DISPATCH_METHOD,* q, b' ^, {! g4 }" i
&dp,+ p) O4 m9 U$ m( v6 b: \
NULL," |% ^# w* j3 g# b" `! P t; }
&ei, 8 ~+ v+ \8 k: B, f) S& m &uiErr); , E3 U! F5 `* m% y9 t( | ^3 P+ }$ e: f5 }3 _5 N
SysFreeString(topicStr); 8 X* D- v* h( ]2 n, z SysFreeString(itemStr);: u# e4 z) P; Q; A0 Y; w& [% y
SysFreeString(valueStr);6 Y. Q( l' N/ J
* V8 a; I9 o$ V- g" J8 R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: M) K$ E& l- E. 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????" O, A. G/ A3 m
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2.这是request的程序; y* n- M7 {5 V7 ~* @* }
// Request a value from Extend ! Z0 ?4 w! h/ a, z8 ^//0 ~% m2 h$ g' H: d- m# e3 \
// Initialize the variant that will hold the BSTR. Set the variant's / Y) x u* z1 f: u9 p9 M4 X// type flag to indicate the fact that this variant holds a BSTR. Place the7 F8 D) [6 m4 S0 U! @/ O% G: P
// BSTR into the variant structure.# a9 i- G, ^/ N# _6 N8 T1 E8 ]
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) t) m! b, u( r% R$ E. h. D$ m
, b# g& K9 \+ E! @4 L2 u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! C. O3 j) T! j: s" K2 F! e VariantInit(&requestVariant[0]); 5 v6 y+ W- Z' x9 x3 x2 r requestVariant[0].vt = VT_BSTR; # l5 K6 g; \% A5 u3 }6 \# ?' y requestVariant[0].bstrVal = itemStr; Y. t' S6 R7 O T" v8 B6 H0 e
topicStr = SysAllocString((WCHAR *) L"system");" J- |& K( d# Z9 s1 _7 _$ y
VariantInit(&requestVariant[1]); : `7 x. T4 Y2 Z, s( ^
requestVariant[1].vt = VT_BSTR; " H5 S7 I5 D7 f+ B. U0 \. U requestVariant[1].bstrVal = topicStr;* D; e3 r/ O i6 E, p
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// Set the DISPPARAMS structure that holds the variant. 7 Q" B' a+ M' u4 ], [# O7 F$ R4 x9 d
dp2.rgvarg = requestVariant; & i1 `+ u* ]" U9 S dp2.cArgs = 2; " U* p) _' B& x' @ dp2.rgdispidNamedArgs = NULL; e0 I8 w0 o0 O3 g9 O1 t
dp2.cNamedArgs = 0;; Q1 X% E U! W% y6 h- x+ l$ x, @- H: ]
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var.vt = VT_EMPTY;+ P4 U$ L6 S( t
) o5 r6 P( I# r, Z0 P// Call IDispatch::Invoke() & K: ]1 D( A* T) {5 N" U* d+ [6 ]# l* Q' I
hr = m_pDisp->Invoke( , {3 e, Y8 t. S) @; X' q- z& M requestID,2 C! R' o' k, Q; A L
IID_NULL, + Z0 ~2 W# Q! i9 W' } LOCALE_SYSTEM_DEFAULT, 7 Z& T3 ^9 C8 ]4 x DISPATCH_METHOD, , D, O" H+ e" q0 l0 G( N' x7 X &dp2, 9 B9 I% G- _1 T1 f8 U% f& }2 g &var,4 @3 h5 Z! y& }* I: C( A; ?6 D) W
&ei, $ `2 V1 A* N1 H9 c/ v& C &uiErr);! d2 D' b; l+ L4 ]3 n3 h
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SysFreeString(topicStr);8 y+ @2 w: P- M, L/ j5 E) F7 U
SysFreeString(itemStr); ; {! j4 B8 M2 H& M* b- Z请问该程序是获得extend里面的哪个值? 5 b2 Z0 D' k8 T) f. x- 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????