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:) t* O/ r5 \5 l2 K; l
Name = (WCHAR *) L"Poke";6 n! k# k3 r# v; } t
: y8 G# L) K' G hr = m_pDisp->GetIDsOfNames ( % r4 Q4 g5 i# y. o IID_NULL, // reserved: P8 o0 `+ a( f: H+ c- y
&Name, // Array of names to get IDs for 9 M$ l: u1 Q$ V. O+ E 1, // # of names in the array ; F8 c! N, u8 o/ Y$ V LOCALE_SYSTEM_DEFAULT, // System locale 6 z4 h1 y% Z$ m" D &pokeID); // Array of IDs to fill on output : C% F/ E8 |9 ^% y1 K 2 ^& C" m( Z7 K: \$ p9 H
if (hr) 0 t# F W- _" s; ^% _ { - S3 U U/ c3 @ MessageBox ("Get Poke Unsuccessful"); ; }: C' Y2 M" M: m# ?# t; C return;3 i/ X! h1 _! M( g1 T/ \$ z6 M( H
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! H- K, V6 t3 q7 p+ x7 \0 o/**************************传递数据给extend**************************************/7 d- S- } w2 e! g/ S3 r, K- g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' f, U) J) q+ j: U* ^, A
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valueStr = SysAllocString((WCHAR *) L"1232");- z- m: t4 R L' H
VariantInit(&pokeVariant[0]); 2 F9 o. d, }# ^ |$ k pokeVariant[0].vt = VT_BSTR;' C: W' y2 I+ k
pokeVariant[0].bstrVal = valueStr; 7 v: f4 Y. m2 w/ K: @ # O# l- B" q4 q# T) T/ x6 i* ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ]( b+ A6 b0 _: _9 t# a
VariantInit(&pokeVariant[1]); & d* [: [1 }" c. y: }( ?+ j/ B8 M
pokeVariant[1].vt = VT_BSTR; * v* o( y% Q5 \ pokeVariant[1].bstrVal = itemStr; ( x9 z% { o. C) U& U# e* y, q! W, |8 C* d3 ]
topicStr = SysAllocString((WCHAR *) L"system");) y9 q% T- x$ R: B6 @1 r$ S
VariantInit(&pokeVariant[2]); 1 y4 A$ G F' L ~ pokeVariant[2].vt = VT_BSTR; + G0 g/ m @7 F$ _# l pokeVariant[2].bstrVal = topicStr;3 J, S4 b7 G% V x0 i& T6 \/ ?* m
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// Set the DISPPARAMS structure that holds the variant. # T+ V- h4 g9 P T% ?8 ]$ h+ U# p& }5 S- o) _
dp.rgvarg = pokeVariant;; ]5 F/ b w' u$ X2 M
dp.cArgs = 3; 0 g* D. e) U7 O% D dp.rgdispidNamedArgs = NULL; ( g6 h0 b# r9 J3 o0 v8 A1 p+ F. D dp.cNamedArgs = 0; , E. m, \ |/ Q# v# {4 V 9 J& g2 ?9 d* v1 S% b3 X0 Q: e) {" g// Call IDispatch::Invoke()' f/ p' a+ U: C$ I, q5 Z1 i
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hr = m_pDisp->Invoke( & r4 s3 y2 ]9 d1 h$ i! c pokeID, ?) U! x) q1 @6 q" Q; z6 c; h IID_NULL, , G+ w9 r' v) `# W: b LOCALE_SYSTEM_DEFAULT,' y" g( q0 N$ m" s( P
DISPATCH_METHOD,' Z- O) C0 V4 _# t, X3 H$ p
&dp,: c, l/ t" x. i. m
NULL,5 U+ U" H, C$ F1 f9 q. g9 I$ q- n9 ]
&ei,$ L& J5 r) p! y$ U3 b7 t* r
&uiErr); & [* ]% F) G9 A0 O: `- m- F4 M# `, _5 i& |' ~- L
SysFreeString(topicStr);; {7 Y# p/ }# L/ Z9 G
SysFreeString(itemStr);6 ]/ ?& c: M- j- }& z1 O
SysFreeString(valueStr);# v$ v' z9 b& M3 k% r5 C
7 D3 a2 U2 m# e2 O8 |- w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???1 c: Z# p2 S* M9 x, ^, A
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????$ \) I( z1 s) } R( K$ e5 ]0 F
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2.这是request的程序/ k& R: [: {& {' ?3 [; \6 y
// Request a value from Extend " L1 b4 G5 o6 A2 {// & v# _# Y$ o1 c0 Y+ x// Initialize the variant that will hold the BSTR. Set the variant's/ o& ~* {. X8 V$ j$ Y$ i
// type flag to indicate the fact that this variant holds a BSTR. Place the$ E' ^0 L: l% t8 H# g& h: j
// BSTR into the variant structure. , g d/ v7 w+ B/ j0 p- _' M# E( H9 N5 K% T/ v% I/ e- P+ B, x
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 C' ]+ M& g& m Z g7 E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 \6 U) L/ ]; ?1 V- e# ~% M VariantInit(&requestVariant[0]); # k; V0 N; T2 S requestVariant[0].vt = VT_BSTR; : L+ a9 s' i0 l) c& r requestVariant[0].bstrVal = itemStr; * t8 E j: S5 x( M- e4 u$ b7 O6 s6 w7 I. r2 i' n" J) b
topicStr = SysAllocString((WCHAR *) L"system");4 Z4 g/ ?+ k" Q; _% q
VariantInit(&requestVariant[1]); ?9 }- h. w. @; i" ^' _/ W8 T. ^
requestVariant[1].vt = VT_BSTR;' C' x/ S o# ?8 v% E$ H7 i' v
requestVariant[1].bstrVal = topicStr;: N( Z% J7 b9 A) B4 Y4 N* `
' p# u3 G+ F1 `; y// Set the DISPPARAMS structure that holds the variant. q7 j) b6 n" |
4 j" u, C; [6 h) y dp2.rgvarg = requestVariant; 6 k& s( a8 |, k+ @5 B$ t% e1 F: ]# F dp2.cArgs = 2;0 I( g& C. `( U
dp2.rgdispidNamedArgs = NULL; % [% ]* M9 f$ j. ^1 ^0 ~+ I dp2.cNamedArgs = 0;, u9 q. z& p* \5 t9 R% E. G! S
4 f5 c" T, y" y6 q& ^/ m var.vt = VT_EMPTY; 0 Z! D2 w+ }* N * k1 R2 X3 O8 h H. L// Call IDispatch::Invoke()5 c X# I; O" r
' r6 {/ z% L- J* A; {- r, V7 G; Y0 A hr = m_pDisp->Invoke( 0 l$ Y8 n% B& o' x: T requestID,2 `) F& Q) M2 q$ V6 J1 N* [2 ]
IID_NULL, 9 S4 |8 [0 x6 R1 L4 W! @& ] LOCALE_SYSTEM_DEFAULT, ' E% L& J1 `5 s% ~ DISPATCH_METHOD, 2 J7 e& F5 F+ Y1 a1 r- `" V/ Q &dp2, 8 C2 P3 R) N+ `# a$ j3 X &var,8 Y0 j6 d4 [$ n, s3 ]7 x
&ei, 4 E/ i. E2 ]; b; j" M# x &uiErr); % x0 i; |) \+ z4 I/ [2 i / Q" E6 c+ p3 B9 M0 n) E, F SysFreeString(topicStr);4 a3 B- V! |2 f0 M3 X5 u
SysFreeString(itemStr);4 Q- W. S Z( J3 U8 M
请问该程序是获得extend里面的哪个值?! ]: u; F( `8 \* 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????