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 L4 _% z3 C) n! e5 D( o
Name = (WCHAR *) L"Poke"; 0 J) n7 z% i% m: S 6 |% ^; _9 d$ L8 D
hr = m_pDisp->GetIDsOfNames ( 3 u( v6 g8 ~7 b# J) c. c IID_NULL, // reserved9 J3 c" N# r# b2 F9 y) s2 h
&Name, // Array of names to get IDs for- Q0 J/ `2 r6 e& E9 }+ C# y1 _. l% x
1, // # of names in the array ) h0 R, ~8 Y8 d4 X% X LOCALE_SYSTEM_DEFAULT, // System locale N! n I9 ^5 a# j' X
&pokeID); // Array of IDs to fill on output/ ^9 C+ g6 K4 E: S5 f; K
1 p' d- K; o8 ~8 B if (hr)0 ~. _* R, q& L+ ^9 ^% V
{ ) G5 B/ m9 K3 C MessageBox ("Get Poke Unsuccessful"); 5 |, A. a3 J2 k- S return; 4 N5 O" [$ i$ j" ?7 g& I; U } ; C3 F0 A7 U9 Y% ]: ?* W( d0 q4 I. M: ?
/**************************传递数据给extend**************************************/- k3 P( M( j9 H4 T& E" a* Q. E' g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " R% U4 [ E0 o7 `, {- u 5 c- i8 x! U' Z valueStr = SysAllocString((WCHAR *) L"1232"); % }2 ~9 q& `( ` VariantInit(&pokeVariant[0]); 8 Q8 W9 p) p H! O
pokeVariant[0].vt = VT_BSTR; ' H& v( H0 o$ }+ S+ _ K& I pokeVariant[0].bstrVal = valueStr; ) P& g! h* S0 J* o' C; H; L4 Z- ~! Q; ^5 H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & d: f# Y2 a" c; D; f/ _7 h VariantInit(&pokeVariant[1]); ( X! E+ E, | |0 W. y4 j pokeVariant[1].vt = VT_BSTR;/ m x8 B- ^- c
pokeVariant[1].bstrVal = itemStr;7 g# D# n3 m1 Z/ h/ q7 K
3 O% ?/ r: v3 s7 p topicStr = SysAllocString((WCHAR *) L"system"); + N5 R) i% H5 x9 v VariantInit(&pokeVariant[2]); 9 @- N6 \: ^% Y& A
pokeVariant[2].vt = VT_BSTR; 7 E) U0 Q5 W/ h, ]- e pokeVariant[2].bstrVal = topicStr;" P' `; U4 w9 y$ J
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// Set the DISPPARAMS structure that holds the variant.+ A2 ?5 T+ y P- h, S
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dp.rgvarg = pokeVariant; * k& m2 @ L2 B8 M7 s# P dp.cArgs = 3;. m, L0 ]' j v, D
dp.rgdispidNamedArgs = NULL; $ e2 t9 \; x$ T7 R dp.cNamedArgs = 0; - X$ `$ t5 o% V$ v1 v( Y/ p& p' g- e$ D( d6 O7 u3 Y4 V
// Call IDispatch::Invoke() " |8 D. u4 t8 v! F* {# t- W$ p
hr = m_pDisp->Invoke(* e! J3 F* X1 `/ L4 \- M% x) b
pokeID, & u- M8 W5 }7 H$ {8 J2 ]# Q% L IID_NULL,# W" l' J& e2 e
LOCALE_SYSTEM_DEFAULT, 4 e0 u# t- q$ }1 v DISPATCH_METHOD,' O! E( ?) y% y
&dp, ' i' k6 q9 [7 h7 ]8 x NULL, . @. Q) J$ L% E9 M &ei,0 K0 H, b0 d& U: H* Y/ m
&uiErr);9 `( ?, L$ W! h9 e3 S5 I
- k6 }- V1 i- o7 k* o SysFreeString(topicStr); : _6 F4 P3 {+ X0 u T7 F- J2 ]# o: c6 | SysFreeString(itemStr); 4 A; m9 [' R! Z" l, t' e$ \) L+ E, u: B8 _ SysFreeString(valueStr); " z: C [4 U a+ O* {6 \" R% t3 q. p6 i
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??? 2 C6 L5 v& f; B4 V( p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???? * S0 D" e- r1 c2 `1 E$ }& ?" V$ Z# |& h9 G/ S, L( T
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2.这是request的程序 % x3 `1 S, W5 G7 P t% ^5 i// Request a value from Extend ' G! q6 `2 Z2 f, N// K' j3 o- D. r% t& ~// Initialize the variant that will hold the BSTR. Set the variant's / \, i) }: ~8 C/ J& t" L' f" b// type flag to indicate the fact that this variant holds a BSTR. Place the; q& _! m# c9 p+ t1 X6 g/ b; n
// BSTR into the variant structure. . d$ f: ^" E9 g, ~8 W. U4 [8 v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 d% D Z7 U |8 i6 X, @: \0 w * d' m3 A0 u4 t" b6 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ^/ h; Z4 ?* s9 B$ \6 g+ r L: m
VariantInit(&requestVariant[0]); , T! f$ d0 W' x+ x" n" o+ K4 E requestVariant[0].vt = VT_BSTR;6 Q) t# t6 x5 v8 b9 a! L8 h
requestVariant[0].bstrVal = itemStr; 7 N, s/ N7 ~. ]5 @- W8 ~7 f ' c6 p8 _9 c; V+ Q topicStr = SysAllocString((WCHAR *) L"system");0 {8 N8 ]) f" C% }& Z, G! O. i
VariantInit(&requestVariant[1]); ) m# }/ I6 V. T5 |; i7 H requestVariant[1].vt = VT_BSTR;) _2 d/ ]% G K; d4 K8 p+ K# ~4 `
requestVariant[1].bstrVal = topicStr; 4 |: Q: j% b5 q' I( P6 q4 T: _/ ]) [6 O' E6 q* I9 t6 w e+ P
// Set the DISPPARAMS structure that holds the variant.- q7 v8 ` ~- |+ x2 `9 \' M( W
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dp2.rgvarg = requestVariant;# U- b* [! I8 D, F. c& A
dp2.cArgs = 2;+ }. E6 j% \8 O- U* g& e" A2 x% `' {% L
dp2.rgdispidNamedArgs = NULL;, C% s: n! P% s
dp2.cNamedArgs = 0; + a, t: L g! y0 I& ~# N; R 2 |6 @3 m a9 A+ O/ z& u$ S l. p: o var.vt = VT_EMPTY; , D* |/ G0 s- {; v Z& @* _/ A y+ V) M' `% F
// Call IDispatch::Invoke()4 F9 i' P6 e1 Z# ^; T
3 V0 z& o) o8 c4 d$ C hr = m_pDisp->Invoke( & J( z: d! i4 a2 |) e requestID,' ~5 ~& l7 {. f
IID_NULL,' |7 x3 `9 t/ f( h+ Y
LOCALE_SYSTEM_DEFAULT, ) V5 r, s: ~, o) s8 h) d- D1 x) w DISPATCH_METHOD, # R: p$ o2 J I; }8 X& M: }) V0 } &dp2, 6 E e) Z1 L; _ &var, / Y& a' Q% Z' p: e9 R7 d &ei,8 q+ n k5 g$ }& g. k" ]+ A
&uiErr); ( O- Q6 ]: R0 s8 P1 ^0 c' ~# _ ! \/ D9 _3 v2 n c SysFreeString(topicStr);" ?/ }* L1 A; w" \6 A X
SysFreeString(itemStr); 0 w# w# ]5 q3 p请问该程序是获得extend里面的哪个值? 2 s( z" G- A* `" y' o4 [* B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????