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: ' S% ?! d0 H5 n' `Name = (WCHAR *) L"Poke";) \) P s; B1 G9 e" C/ Y3 |
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hr = m_pDisp->GetIDsOfNames (. } w3 c! w; d4 h* o" E
IID_NULL, // reserved ! Z; V( _. X) H% l) H- h &Name, // Array of names to get IDs for # L' R( a% f1 ^ b# \ 1, // # of names in the array # f, J- u3 |/ G" G LOCALE_SYSTEM_DEFAULT, // System locale . m$ Z" p) Q. X' n$ P &pokeID); // Array of IDs to fill on output ( w6 Z6 ~1 p! A8 ?- t & ], M1 |2 z" I( }" L0 L- O if (hr) 6 n# `% F; v, h" ~5 S: h# h { # D# W/ u; x5 u/ K MessageBox ("Get Poke Unsuccessful"); 4 Z# j9 z0 S/ e+ ~ Q* t- W return; 9 \0 d; O( ~% j8 p7 e }$ C2 ~2 Y, b4 Q5 V2 T- w2 ^/ G6 k
0 K3 N4 q. z( a- j% ?- O/**************************传递数据给extend**************************************/ 9 c9 g; \. z- K% N- Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' \8 |* v4 ^2 t0 L& W$ d; ] # U( M) t, Z* S4 x valueStr = SysAllocString((WCHAR *) L"1232"); g8 H, i! ^) `3 ?. h+ @ VariantInit(&pokeVariant[0]); . e' w. X( j6 {9 F; f pokeVariant[0].vt = VT_BSTR;9 S2 O# Q2 l% e' }( v4 ]
pokeVariant[0].bstrVal = valueStr; 1 Z5 T, B: M9 a( G4 E. ? p 6 \9 B0 [* w g: C3 \7 r9 c' P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! |, c. b# E4 _) b2 E" H; k
VariantInit(&pokeVariant[1]); 8 y, t, t9 @4 D5 D4 N, H. C% k
pokeVariant[1].vt = VT_BSTR;" j* i! e/ k/ j/ Y* A* B
pokeVariant[1].bstrVal = itemStr;1 c6 c' d* J4 `& [" N
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topicStr = SysAllocString((WCHAR *) L"system"); 6 h: q( i# s1 }8 G; v' I VariantInit(&pokeVariant[2]); + b3 n& h$ F, z8 v) ^5 @+ h
pokeVariant[2].vt = VT_BSTR; ( y, ~0 }4 R/ u! T$ s pokeVariant[2].bstrVal = topicStr; 2 N' O8 V; T, |) d. H' W ) k2 ~" y, _4 X, {// Set the DISPPARAMS structure that holds the variant.: I( Y# i% x, k) A9 {
9 K6 c* X, I* [' [ W dp.rgvarg = pokeVariant;9 h' h( t. g8 `2 X
dp.cArgs = 3; 6 H9 C; h, Y1 _ dp.rgdispidNamedArgs = NULL;0 y7 Q2 \9 y& r& o' V7 Y8 o
dp.cNamedArgs = 0;7 M3 g* [3 f6 U. c' g! ^4 w4 x
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// Call IDispatch::Invoke() }& h. ` V5 a; A5 o 5 L2 P7 G" |& f/ E6 ]# q hr = m_pDisp->Invoke( ; }* m$ V* Q, G% g% ^ Q) E pokeID, $ m+ ^' s2 q$ [- W% z, t IID_NULL, ; v% U: y" n1 u2 H- \4 ?5 p LOCALE_SYSTEM_DEFAULT, 0 u- a! U/ }$ r2 u' a/ \- ? DISPATCH_METHOD, " e7 _! q! t, \6 _: Q &dp, + @; m) S3 ?0 M# U NULL, " x8 f' b$ M* [ &ei, + b: l0 R4 M. D! ]6 S &uiErr); 9 K0 A, M' |- ^) p+ l$ E1 O( j1 \# b# j8 \. n
SysFreeString(topicStr);* _# _8 N' U5 u2 B; L% w
SysFreeString(itemStr); 2 Q: T& t- q8 ^/ \2 Z2 w. q" ` SysFreeString(valueStr); A# o! B4 d7 T
" d! W; R& Z, l! n1 p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???; j! \9 [. L c$ i. I5 }, y
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???? ' m$ E, Y6 I/ J2 X$ l! L+ a 7 }4 ^ T a q% p + y G9 Y4 C9 w' `' o# [2.这是request的程序) J8 K, x; @( }4 A! k& o0 W: W' x
// Request a value from Extend) P `/ E3 p% F8 O2 t1 S
//* V* r. Q5 G4 i! t% e5 |
// Initialize the variant that will hold the BSTR. Set the variant's1 X' `* N- k& P% s, w4 |! q
// type flag to indicate the fact that this variant holds a BSTR. Place the # u5 I, l+ f9 M- {/ ]0 J( s D// BSTR into the variant structure. + x1 F2 ^5 }9 O / q! _$ v, `+ B/ t+ X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); F1 c6 r# [, k: x. w6 J
9 o( [3 M7 ^7 c1 ]7 V& [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 o( s3 w; J2 v/ V. ?- D6 Z" | Q VariantInit(&requestVariant[0]); ' p% P/ [& a! [9 S, K1 M/ P requestVariant[0].vt = VT_BSTR;: p( \$ Z( k* ^. N# w( s# e* |. D
requestVariant[0].bstrVal = itemStr;& s* k! F/ X# N
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topicStr = SysAllocString((WCHAR *) L"system");3 M, i5 l1 C/ ^3 i
VariantInit(&requestVariant[1]); 3 \' L. U- { {5 w8 w
requestVariant[1].vt = VT_BSTR;, v, ]2 F6 q3 N0 f
requestVariant[1].bstrVal = topicStr; / e# R/ y, A) [" r5 `3 P# s6 ?7 w( ?( I
// Set the DISPPARAMS structure that holds the variant.# E! y% D2 M1 c+ y
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dp2.rgvarg = requestVariant; : K. i+ D; y& K8 W! G dp2.cArgs = 2;8 e5 g4 A6 c: H/ N9 V7 q; s
dp2.rgdispidNamedArgs = NULL; / d+ K6 Z! T; X) b% @ dp2.cNamedArgs = 0; M, U9 a+ H" _3 j