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: , u% Y/ R3 e2 P! J1 Y7 S) EName = (WCHAR *) L"Poke";# `# v6 d) H2 s2 z; |. p
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hr = m_pDisp->GetIDsOfNames ( 8 C1 Z' J2 I( ?% l; Y IID_NULL, // reserved. @) ?$ h: \. d" X6 L
&Name, // Array of names to get IDs for; s) O7 d6 C9 s1 H
1, // # of names in the array $ y1 I" r) Z8 d6 E8 |$ _ LOCALE_SYSTEM_DEFAULT, // System locale; T/ W8 u) e q. I
&pokeID); // Array of IDs to fill on output" E0 a' b% n( |" ]5 c3 T: C
, D, @$ D7 b3 k) S/ U if (hr) 4 ?- L- Y/ R% a0 J. ^ { A, _( s1 f$ z" v MessageBox ("Get Poke Unsuccessful");& E) J' u, y- s% c9 a
return;4 d: U. Y1 I2 R- v
} ; @) L+ a" L l% y9 O( P9 @+ b9 v6 o4 i
/**************************传递数据给extend**************************************/- t3 a& X7 S Y, o- a5 }* u) F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( k7 z! N! q6 l* \. y5 o * T% j" o4 D6 t5 l2 J1 E+ b
valueStr = SysAllocString((WCHAR *) L"1232");- n. w& D, j0 p \. p x4 U
VariantInit(&pokeVariant[0]); 8 G) t$ m+ D7 Y# P pokeVariant[0].vt = VT_BSTR;$ P3 D/ ?7 o T: t9 d h
pokeVariant[0].bstrVal = valueStr; ! N8 x q- L+ _3 m; U9 \ 2 ~2 f1 Y) U% d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 |, }5 P3 O% a' @% y8 h
VariantInit(&pokeVariant[1]); 7 a k( ?5 x- \. \ pokeVariant[1].vt = VT_BSTR; 6 f" ~% l- d; P6 f, X& s1 V. } pokeVariant[1].bstrVal = itemStr; % w6 g% _- o( t, L" L* a' ~9 x1 h' o! B
topicStr = SysAllocString((WCHAR *) L"system"); % l: `0 d8 j5 o/ j* r VariantInit(&pokeVariant[2]); * P7 \# f" y& O; c
pokeVariant[2].vt = VT_BSTR;1 J, v0 R6 f6 W4 R" B. `
pokeVariant[2].bstrVal = topicStr; - F; W# A) _" C b ! e! h: h2 G& P. Z2 D2 A0 A// Set the DISPPARAMS structure that holds the variant. ! b5 \ ~% P D! P% j) a) _7 i , e: f* S5 v$ |% j/ K dp.rgvarg = pokeVariant; 3 h; Z; o8 }6 Z: C! c6 v( \ dp.cArgs = 3; 7 h0 C6 a0 H- D0 ^2 D3 ` dp.rgdispidNamedArgs = NULL; " k4 L& e5 j5 t: K: n; S8 f dp.cNamedArgs = 0; ! T; h" ~% i& y i$ v/ B) v* q t/ m6 ^% C# y
// Call IDispatch::Invoke() 6 t7 [! S9 \- s9 E" F3 D0 ?* F! l. ?) u
hr = m_pDisp->Invoke(7 V+ o6 {- y; Z1 G0 {- n* L5 L
pokeID, 0 Y8 X, ^4 K8 h/ z n+ y IID_NULL,) [ \1 X2 ~6 }7 N8 Y0 T, L
LOCALE_SYSTEM_DEFAULT, 7 a I$ f3 a3 v% v4 a6 X5 O DISPATCH_METHOD,) H9 Z' r; r8 M* E/ w+ d3 ?. q
&dp,& s S0 F5 I0 I2 p( q( i
NULL,) g$ ]3 \, ]. G5 g0 s6 a
&ei,( |+ m: n4 G2 d- ~; F$ B
&uiErr); & ?( k+ `. T& d" [' ? & n7 t+ p. ]# R( j: W SysFreeString(topicStr);0 p, `3 f0 o# A2 ? t# `
SysFreeString(itemStr); 5 W( {0 E2 G/ x: ] SysFreeString(valueStr); - |* A" I7 ]5 B4 G! L, F( y/ @ , `! G3 a2 e& {+ J0 r6 K6 F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 {- A* g1 ~/ D' W$ a* s+ O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????$ Z" j" k" i+ b$ @$ T
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, j4 ^( g0 O) y6 \5 V1 B. Y2.这是request的程序5 j" t$ x3 r9 K/ t% x4 S
// Request a value from Extend( g+ X0 G2 ]0 m+ [4 _( Z: K7 W" ~- P
// # j/ V5 X2 \5 R( W0 k ]// Initialize the variant that will hold the BSTR. Set the variant's' d- I7 ^: M( X+ U
// type flag to indicate the fact that this variant holds a BSTR. Place the ; G7 v/ Z* U8 ?$ j5 n+ c' a: G0 G( L// BSTR into the variant structure. * Y% Q+ E0 F J5 ^5 Z# c2 n- u. _( P, U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( h" b/ S# L% Q; x& L# N3 o5 ^
1 H# c9 y* {' G4 ~& h1 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; c# L; O: \8 U; t6 f VariantInit(&requestVariant[0]); 4 C1 o) Z% }- g) f4 y0 B G+ S
requestVariant[0].vt = VT_BSTR;5 d' u6 A6 i6 J# ^0 P( n, p7 L: j
requestVariant[0].bstrVal = itemStr;( R( X, n+ y1 n. k
& w7 [# {1 s3 H) s; j/ A
topicStr = SysAllocString((WCHAR *) L"system"); . N8 r& k' Q1 \0 i, { VariantInit(&requestVariant[1]); 5 L: I+ ^3 i; x$ ]: k* w: T/ Q requestVariant[1].vt = VT_BSTR;: `2 Q B+ q3 c5 Y
requestVariant[1].bstrVal = topicStr;9 z5 y9 J. G. }) `3 y7 j
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// Set the DISPPARAMS structure that holds the variant. ; s" Z% Y0 v( b. Q4 N4 @) A Z # O$ R3 H6 C) d dp2.rgvarg = requestVariant; + M8 E5 S$ k2 u/ b. r) u dp2.cArgs = 2;; p7 e5 t4 K E+ S7 ]
dp2.rgdispidNamedArgs = NULL; 5 q8 E9 r) H' Q5 o dp2.cNamedArgs = 0; ' }7 ]. ]5 E# h. }) f! l) E 8 N/ J- U+ ]2 y/ e var.vt = VT_EMPTY; ! H k9 b0 D) C) J ) Y; V7 a1 E1 x7 B- Z! A F5 S// Call IDispatch::Invoke()2 a% i9 C: K* h; Z& F0 E
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hr = m_pDisp->Invoke(& C9 @2 d' D. X9 [4 |4 j- H1 D
requestID, : f& J7 ~2 r7 @* K4 A$ l IID_NULL,$ G+ c G; q8 _
LOCALE_SYSTEM_DEFAULT, # w- {9 W1 Z, r1 y" m DISPATCH_METHOD, 7 C- N+ |# d O" n6 w% Q3 u- x &dp2, 6 B. s0 x1 B9 @! R4 u &var,1 }9 y. i: e& |( X C
&ei, ; H0 z5 _% ?$ |" C; \- \4 l &uiErr);1 S- ]7 t# A4 ?2 t