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: $ M9 F( _( t. ?Name = (WCHAR *) L"Poke"; & C% \) \& j& v2 D3 j, J! a, M : }% i5 K" K& A4 u0 F) \9 o
hr = m_pDisp->GetIDsOfNames (4 s1 A- L U' g5 _) N
IID_NULL, // reserved% J1 x' ?. E" ?0 G5 B& |
&Name, // Array of names to get IDs for ) B! w& l/ v; B5 G* t 1, // # of names in the array $ `- w. O6 e4 ]4 K2 X6 p LOCALE_SYSTEM_DEFAULT, // System locale* ~% r. m5 R# C& ?6 U
&pokeID); // Array of IDs to fill on output % H/ b8 B$ r7 W+ O" b7 Z2 K6 b2 k/ C , M$ d, i. C7 \, g, ^" W9 y
if (hr), P# ^3 x( C' Z! Q( m
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MessageBox ("Get Poke Unsuccessful"); 9 b' s: I% \+ V. E" H; [ return;) w/ D; H1 L8 d4 {, T0 Q/ k u
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% A3 h' n ~3 [/**************************传递数据给extend**************************************/- ]$ D Y, u+ \3 P
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 U3 F! D. _) k3 i+ J8 B% {8 c3 g
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valueStr = SysAllocString((WCHAR *) L"1232"); ' C& I+ p" c. z4 U4 J VariantInit(&pokeVariant[0]); / r+ B7 V& W; ~& \& G. |
pokeVariant[0].vt = VT_BSTR;8 L) c8 e7 S5 g8 e S" r
pokeVariant[0].bstrVal = valueStr;+ F) b6 n5 H- J, {. ~0 c# o5 s7 ]+ G1 ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 D$ Q" A1 o3 K9 A7 D) W- w# q
VariantInit(&pokeVariant[1]); ' n# w2 [5 b0 v" @
pokeVariant[1].vt = VT_BSTR; 0 V6 l9 b, A" `' m pokeVariant[1].bstrVal = itemStr; + ^( U9 n' Q9 u9 b4 f) x8 \% K, R0 w2 A1 \* W' J
topicStr = SysAllocString((WCHAR *) L"system");0 @% v& F* M7 C5 S. z) Z
VariantInit(&pokeVariant[2]); 4 v0 |3 S. g: H- V1 e6 \' c* u pokeVariant[2].vt = VT_BSTR; + a x: B8 L( U8 Q. p pokeVariant[2].bstrVal = topicStr; # V' y- @: e/ Q# N$ L3 Q1 y ' e& O: v8 D- U6 \2 G) e3 J- t2 ^// Set the DISPPARAMS structure that holds the variant. # A; W' s- e" B, [" }: U( I" V( w$ X* X/ [# T) m/ G1 u
dp.rgvarg = pokeVariant;2 N) m1 b1 K( J! t. A' L, e4 ~, \9 n
dp.cArgs = 3; 7 ]5 Z" |9 o4 Y6 E& b& G; l v dp.rgdispidNamedArgs = NULL;1 i3 i8 m0 H$ Y3 T( u6 T
dp.cNamedArgs = 0; - r0 y8 q2 [9 j7 }, t4 W1 s: i. T2 |& f0 l% b
// Call IDispatch::Invoke()7 J6 v- x# l6 K, D( t2 E3 V
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hr = m_pDisp->Invoke( ' X' M5 L& a% D0 q pokeID, - t& C1 b7 l6 U8 Z% _, T IID_NULL,! B9 _/ C" a* f$ ?' K
LOCALE_SYSTEM_DEFAULT, * j5 r! |, |& {+ a( @( }( N DISPATCH_METHOD, m# h0 J$ u, _
&dp, 6 ?. k6 Q0 `# ?+ d5 c4 z* P NULL,& X2 a8 S* A- R) G9 B
&ei, 5 |$ t7 [4 C( a! F$ l &uiErr); 4 T& T8 I( I( t) S- n$ f% f # z7 A- n. }: z$ {+ {7 [& E. T% I SysFreeString(topicStr);+ I& Q; f" ]- u5 R9 Q: D: i+ l5 G
SysFreeString(itemStr); + {5 C* ^" q: N SysFreeString(valueStr);1 _7 Z1 F3 M) g, P
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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???3 i u; n" \* _, ]& n* s5 f
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???? 8 e8 i, \9 o: D; P/ B1 D/ [6 o# [6 r
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2.这是request的程序, {, u! P: _6 D# g; r: Z# z
// Request a value from Extend X ]. f6 w+ K) U2 N0 P/ M0 \- z, S//. H( B5 X! X+ T( N; D
// Initialize the variant that will hold the BSTR. Set the variant's u, Q) ?" d6 l// type flag to indicate the fact that this variant holds a BSTR. Place the5 g9 m# l; u" c& D- ]: D8 V
// BSTR into the variant structure.( J# ^ i6 u! C+ t! ~& c6 b& \# D
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 p' s" e) c" E1 I) c 8 _% F2 Y& }% E3 X; ]+ V( A, G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 R3 y9 r. T+ }: @ VariantInit(&requestVariant[0]); s. g9 U/ e$ W: P/ ^9 p& Y( ?
requestVariant[0].vt = VT_BSTR;, E. u3 U1 o3 N ~2 r
requestVariant[0].bstrVal = itemStr; 7 }( g" D& V2 f2 ? + W _- H/ T3 {8 {; _ A topicStr = SysAllocString((WCHAR *) L"system");1 [) F u; x2 z
VariantInit(&requestVariant[1]); 8 r, ~) C$ O7 v" g% f requestVariant[1].vt = VT_BSTR;5 r9 }5 V+ E" `
requestVariant[1].bstrVal = topicStr; # ^: G- Z8 ~' o! n 9 G5 q" `3 E3 W( p// Set the DISPPARAMS structure that holds the variant./ g M+ j! {$ B) p; _5 I
T( a' @5 L' T Q dp2.rgvarg = requestVariant;# y8 z, Y; g0 o
dp2.cArgs = 2;# l6 f/ f1 e+ N5 P
dp2.rgdispidNamedArgs = NULL;- t. B7 h+ a$ J9 U
dp2.cNamedArgs = 0;+ Z3 s* z7 v; z. W0 P$ H( a
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var.vt = VT_EMPTY; ! M9 \% h8 P# T" Y# f & n+ Y$ i! h# a$ [// Call IDispatch::Invoke() 7 B/ d' @$ m3 E2 z6 v$ M) b) O - ^$ s8 |8 h- ] hr = m_pDisp->Invoke( 8 J, q: G7 T) O- |# z! U8 n8 k9 W requestID,* W% J& Y9 c3 J6 C$ e/ H7 q
IID_NULL, 1 c* ]! l o2 V+ g2 d2 z7 @ LOCALE_SYSTEM_DEFAULT, 7 L7 q6 ~5 a. e7 U6 z2 T/ V DISPATCH_METHOD, 3 i' V" N% P, E4 y+ o$ m &dp2,5 a& r, N' }' I2 X) P* Z
&var, 0 Z: D d3 l. U; `, j4 g &ei, 0 R& Z+ g$ J# }2 X, T( t &uiErr);6 b5 v: h0 P9 b V
; s9 ?, y! l9 ?9 S SysFreeString(topicStr);5 b' P: F+ p$ I
SysFreeString(itemStr); " n5 J! u1 u$ T2 i! Z0 x% N K. O P请问该程序是获得extend里面的哪个值? 8 g+ S6 y6 T h7 n G0 W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????