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: 9 Z, V, ~- U; l" fName = (WCHAR *) L"Poke"; 1 t* N; q- p' u- U 5 r/ l& Y S; I* f+ m3 @ hr = m_pDisp->GetIDsOfNames (# ~- b& K) w8 ^' l% L& _. c7 b
IID_NULL, // reserved / }% A" N7 M1 ^8 d/ M &Name, // Array of names to get IDs for ' l. Y" W) ^3 U0 X: l% | 1, // # of names in the array/ M+ a: D4 x, a
LOCALE_SYSTEM_DEFAULT, // System locale * o! M) k _' P/ B1 A1 w9 P &pokeID); // Array of IDs to fill on output ) R9 H! Q I& k, H 7 R* K- T6 P- R" e. I if (hr) # Z/ [" M# m6 b8 b0 Z* y' C4 c( R { ! J7 ]/ U* m9 H( E1 B! A MessageBox ("Get Poke Unsuccessful"); $ M6 r6 @+ \4 j1 \* ` return; 6 Q3 Q' [: H0 ?3 @6 y3 p }, \$ U) h; h" U
" U9 j* m+ k8 X6 x& G, j/**************************传递数据给extend**************************************/$ e5 G$ @ l T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 O5 }0 H$ l3 ?3 | ' ~( t- z# M! ~% f9 J
valueStr = SysAllocString((WCHAR *) L"1232");* | R) \- a$ `" V
VariantInit(&pokeVariant[0]); / [9 }& l6 r3 U# Q) K: ^, s pokeVariant[0].vt = VT_BSTR;' c5 U* Q( p7 n
pokeVariant[0].bstrVal = valueStr; ' `5 E, h9 Y: g I3 h, F# F5 ^0 X7 z3 {3 j1 I0 X( E& L6 j# s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . P7 c2 w4 G8 d+ I2 m% W8 T VariantInit(&pokeVariant[1]); ^" G7 z- I8 \ pokeVariant[1].vt = VT_BSTR;' z) ]5 r- P. w
pokeVariant[1].bstrVal = itemStr;( k; Q0 h D4 E9 A8 Z5 t7 o/ O
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topicStr = SysAllocString((WCHAR *) L"system");3 m$ Z0 M, w" M u6 P; t
VariantInit(&pokeVariant[2]); 4 G) W5 ~/ J6 G pokeVariant[2].vt = VT_BSTR; 1 v1 Q1 t S. V0 L/ u3 s pokeVariant[2].bstrVal = topicStr; $ {. E/ n' R [9 D9 R( ? 3 W' h, I F9 u3 m0 B& M) t% ~4 p4 F9 U// Set the DISPPARAMS structure that holds the variant.) x9 G0 }$ a2 k/ B4 F! v& W. R
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dp.rgvarg = pokeVariant; , L' A* H3 d P dp.cArgs = 3;1 Y; @. I% D" r6 B7 a# s, y
dp.rgdispidNamedArgs = NULL; 1 y$ `* A- S! G dp.cNamedArgs = 0;% i! \0 x8 x2 k& M$ D+ H/ h
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// Call IDispatch::Invoke() 6 B+ x7 J9 I' ~# h1 d, }7 u4 b; d5 ] ^# N
hr = m_pDisp->Invoke() X6 u: ~9 f" Q/ Z3 G
pokeID,( s& T1 t5 A+ t/ k! r/ h5 m a" ?6 L
IID_NULL, - |9 \6 y' }( @ N- l$ B2 c8 k& @& _ LOCALE_SYSTEM_DEFAULT, 3 s9 p6 y, q# u$ B1 E: h! h# E. J DISPATCH_METHOD,7 Z- [9 @/ U2 R
&dp, % V6 c& F% U$ f7 w. ^ NULL, % _( p \& D& e: u; R) E5 j: @ &ei,$ v$ d& `) C! t7 M2 {" A
&uiErr);) a$ e3 A' V3 U/ _
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SysFreeString(topicStr); 8 d9 ?% \$ h4 B z O% K SysFreeString(itemStr);! p6 j: W* t2 ?% D, M; j. r% i0 o
SysFreeString(valueStr); . A5 r! i. w" @% W& p! s1 ?" N! i& z1 n$ ~$ l
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??? 9 n: v; s& `$ N' [+ d- S3 K2 g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????* s; b+ M" j$ B) N9 g) `% m# _
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- S8 ]+ k$ Q s) S2 z. v2 _, A2.这是request的程序 * _' u/ w0 R2 p' i9 {// Request a value from Extend ' P! V ]3 F& V! J+ `# r// & \: `( X7 e. B. Q// Initialize the variant that will hold the BSTR. Set the variant's 5 B. ~# Z, {+ y/ H# Z# p& l// type flag to indicate the fact that this variant holds a BSTR. Place the! H" H9 w, c, j! v* _5 y
// BSTR into the variant structure.8 z W5 [/ n( w/ f5 g
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 Z5 C" p: V4 E: A) n7 ]+ @
! _& F* l& b9 H1 ~$ o0 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 `7 {9 V/ `& Z* F0 O" B0 R VariantInit(&requestVariant[0]); # x" @- y/ u/ h
requestVariant[0].vt = VT_BSTR; / o" j7 O1 }5 X" E requestVariant[0].bstrVal = itemStr;9 C) K: ?- Q( H8 z1 ]( ]2 v9 o2 r
" n S5 g6 N0 A2 c; f* g; H$ ~ v4 R* } topicStr = SysAllocString((WCHAR *) L"system");% c# ^ w+ r8 L
VariantInit(&requestVariant[1]); 2 J+ I" e, k& a9 ^# A3 L
requestVariant[1].vt = VT_BSTR; ) s/ a! Z# }4 \! Y; G* q6 c8 ]. Z requestVariant[1].bstrVal = topicStr; * j9 D9 C+ {$ K: \6 ]4 O3 d* ? / @- F9 V* d, p- e$ N7 U// Set the DISPPARAMS structure that holds the variant. 7 S7 ], Y* V$ ^9 |7 d ; [0 J; Y2 m3 S; b dp2.rgvarg = requestVariant; 5 i' L6 Z [6 { X" l) M" D. b3 x dp2.cArgs = 2; ^& o" x" f: K) V4 {" W" U dp2.rgdispidNamedArgs = NULL;% x' Y% s5 U4 ^
dp2.cNamedArgs = 0; / `7 A$ L: p+ |& y* K7 A + Z# w) n# _# M2 g0 m- ]; E. I var.vt = VT_EMPTY;6 }" W( O5 Q0 J9 a+ q/ G( \. c
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// Call IDispatch::Invoke() $ C2 {! f9 S6 \) ~* o9 n/ Y) \3 O. N7 W& v
hr = m_pDisp->Invoke() a0 k1 O6 H2 `/ t
requestID, ' \2 \6 Y) e5 r: x& u7 Z& Y4 H7 @ IID_NULL,( O$ E2 `+ S; Z( v Z( A! H' ~
LOCALE_SYSTEM_DEFAULT, X8 m8 F2 [6 H% X DISPATCH_METHOD, + W! a2 d! Z* d &dp2, - B, i, U4 |$ |' e% x; U &var,8 Y2 _/ v% b& D' b' t" G
&ei, * T' f: N7 Z' }8 V/ C; H &uiErr);/ f- |6 O& _7 [$ @) A+ ^
& O: A( ~; k1 C! e7 T+ D SysFreeString(topicStr);9 Y! _) x: h# S
SysFreeString(itemStr); 7 u8 Y4 q, B8 T( A' `请问该程序是获得extend里面的哪个值? 4 |. F3 e6 D+ B4 p: B, h5 W9 P1 ~' u& Q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????