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:; ~' N: h. e- ^" C7 v# W( N
Name = (WCHAR *) L"Poke";3 y, D5 C8 t G
6 x7 H7 ?( _0 h2 [, e+ S* z0 s hr = m_pDisp->GetIDsOfNames ( " \; g5 V3 @3 \" l7 ~# m IID_NULL, // reserved # S$ g" v, j9 _% F- Y! E( I( e$ ]! _ &Name, // Array of names to get IDs for+ G1 s; {# S8 Z2 o3 j% V
1, // # of names in the array6 _5 V0 C! D* f M; X$ P& V
LOCALE_SYSTEM_DEFAULT, // System locale ! P4 p: w4 r$ t &pokeID); // Array of IDs to fill on output & k3 V$ p2 i9 P5 H' U8 l 3 L5 ^3 i- P ?9 D( q3 q( s6 J if (hr)0 V" G `: M5 w+ f L
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MessageBox ("Get Poke Unsuccessful"); * T. G" R* V3 f0 r$ _* a return; ( Y. H: q; Q$ R/ A' K7 S } 5 R+ q% o3 ]9 }3 ?0 I' b & S% }# \. }) @3 b/ o. e. ]1 N! q/**************************传递数据给extend**************************************/ 3 i" g& d$ Y- d g3 K/ M9 N2 U( V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 k# _& f) ~. w3 Z 8 O' V9 z% U9 v) a
valueStr = SysAllocString((WCHAR *) L"1232");% E. Z ~; m7 Y, f0 b8 m' S% g* o' D
VariantInit(&pokeVariant[0]); , i0 m3 |0 Q* h# g% i* P pokeVariant[0].vt = VT_BSTR;6 ~1 r! l& l0 l+ _0 _& }4 X
pokeVariant[0].bstrVal = valueStr; 8 G- t. @5 T* u* M/ e! e! y( ^* M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 k5 A( W# I% r" k5 i( G6 m
VariantInit(&pokeVariant[1]); * k) t c6 h" D X& y% K pokeVariant[1].vt = VT_BSTR;& g; N/ g1 R6 S
pokeVariant[1].bstrVal = itemStr; , U |' S; k5 p7 n8 G. D/ u1 L! u F8 H9 e( \
topicStr = SysAllocString((WCHAR *) L"system");3 X B% N5 v/ G" `1 D
VariantInit(&pokeVariant[2]); ; N! z# A3 D |( r pokeVariant[2].vt = VT_BSTR; 8 |7 A4 [; y. Z$ b$ ~9 Q6 Z, l" o pokeVariant[2].bstrVal = topicStr;% C0 p" _+ L% M$ ?
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// Set the DISPPARAMS structure that holds the variant." f* _) i1 T) o ? e
- h/ m! a! e j- x// Call IDispatch::Invoke() " H- Y0 y! d1 H5 j8 O' `3 ^! d5 M) C" p+ d2 H) E
hr = m_pDisp->Invoke( J9 {4 y! v/ Y% `4 u4 ^( S
pokeID,* }: \* x3 c$ C; J; r
IID_NULL, $ T* E% m% D( r6 s3 O LOCALE_SYSTEM_DEFAULT, . l% T" X( Z9 B DISPATCH_METHOD, 2 J7 S* F! p- h5 f/ O: |( s" ?* S! x. n &dp, : g2 I) o8 ?8 L& _# j) J* O1 ^ NULL,% C' [( I8 q* X0 f1 l- g) l
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&uiErr); & N* P0 ?( Q3 {3 [1 k# | ! s$ \2 D k* _! P SysFreeString(topicStr);: d3 W; z4 z# A( V. l
SysFreeString(itemStr); + {9 ^/ c. p) U9 k SysFreeString(valueStr);; [# q; ^, W0 v: x
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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??? ^# Z& h; x' H$ V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????7 K/ h2 `. W8 s2 Z; M
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6 L% `$ `* V% j; p, D4 x2.这是request的程序 7 R) X' b, E7 j2 b1 k1 N* ]% K2 f/ u// Request a value from Extend0 _. R/ ~, r9 o% H* A4 P: [
//8 v, M9 B( V6 ^6 i
// Initialize the variant that will hold the BSTR. Set the variant's( H4 z: c% e' \& L+ x% k& X
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 K! B* }6 F) ?0 d1 k' S: ~// BSTR into the variant structure. O! W/ V" q" R M5 c' B8 O2 [, i5 P$ M- c. q/ S I t
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 P' A6 R* X+ M& ]& a
7 \. }6 w s. B3 V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 `) v& {! A/ g/ i5 y G VariantInit(&requestVariant[0]); 5 H" N N/ p. M+ j3 B \ B' c- r# Z
requestVariant[0].vt = VT_BSTR; _; l, ?0 K, d# U4 ^+ [0 D' i requestVariant[0].bstrVal = itemStr; / J9 Z# M5 ^+ z) h+ |& i4 f; o& }" J
topicStr = SysAllocString((WCHAR *) L"system");& @. W* ~0 k9 P
VariantInit(&requestVariant[1]); 4 p* |9 x9 K! Y: W7 x: F9 _0 f/ ~ requestVariant[1].vt = VT_BSTR;5 p( a. ~5 Y m+ b6 U4 v
requestVariant[1].bstrVal = topicStr; 5 k t# _% g7 M/ n$ _ . ^ [ U: E) {+ f! G// Set the DISPPARAMS structure that holds the variant.# E% K! W% U: ~3 F4 Q/ m. o) s
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dp2.rgvarg = requestVariant;4 q/ F* R+ b4 W( l. J* [9 D
dp2.cArgs = 2;5 L' I* z) V: V- F' f0 }. v" x. h
dp2.rgdispidNamedArgs = NULL; : T `/ `" N5 a# | dp2.cNamedArgs = 0;1 }" R T! N3 |& j T$ a
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var.vt = VT_EMPTY; % H, m( }6 k7 o6 U , S5 p0 R3 e: s) x// Call IDispatch::Invoke() 2 n* K" Q' A/ t# c$ f " B2 [0 Z0 l' ~ D$ W1 C hr = m_pDisp->Invoke( - I( B- F( C8 k+ F8 O# E requestID,, N5 i3 Z) n. Y( I3 i0 J0 i
IID_NULL, 0 [! U0 i5 i6 H6 Z% R' j( ? LOCALE_SYSTEM_DEFAULT, 1 B" C" P4 w; U. `, v DISPATCH_METHOD,/ Z5 B2 R, K" b }$ g0 h
&dp2,& D, w# t8 L- k+ Q3 `
&var,! T: c. p0 [) [( w6 z3 L
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&uiErr); + A8 R U( ~ ` & o# a& P5 U: d; v5 W0 @$ W6 A SysFreeString(topicStr);) [0 D2 `" ?- S0 D `: b" C
SysFreeString(itemStr); 7 _, G7 B' k* w8 L) C请问该程序是获得extend里面的哪个值?8 o" ] V [5 r! Z% 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????