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: 5 x. Q& T; n) k; m/ DName = (WCHAR *) L"Poke"; ! C7 S4 M$ f" G / [! i' J4 G# S6 A
hr = m_pDisp->GetIDsOfNames (# L; v" ^8 V' U1 E/ |+ g$ Q7 v
IID_NULL, // reserved' {+ q! \9 R& i% ]; e# _0 r
&Name, // Array of names to get IDs for; B6 Q; H' E3 ]
1, // # of names in the array: ?. t1 v" \/ I
LOCALE_SYSTEM_DEFAULT, // System locale+ c1 c4 n3 @& L
&pokeID); // Array of IDs to fill on output ; M0 J6 W' @0 o( U3 M & e2 N9 l3 K0 k% Y if (hr) " ~" ?! Z! t$ m3 n5 W8 O { ) K" Q G I" |0 K' k/ M+ j2 N MessageBox ("Get Poke Unsuccessful"); ! b( r5 L$ Q& R i8 O return; . Z" F% w1 q$ S8 ~& r5 i0 Y* T& v } ( I6 W* n' U7 Q, g* T2 `, c* [ 4 k/ C' b' w! e/**************************传递数据给extend**************************************/ ! ^6 ^# i( c0 g* [( K2 m t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ `5 E! m; A9 I5 O- @1 k: _
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valueStr = SysAllocString((WCHAR *) L"1232");9 Q8 F0 z2 h8 G; P" o! g8 B
VariantInit(&pokeVariant[0]); k4 \. o; I7 U6 z8 f
pokeVariant[0].vt = VT_BSTR;6 s7 |" h0 x( P& q8 @- t
pokeVariant[0].bstrVal = valueStr; . N# h/ _1 H( _2 F( a3 B6 F) ^6 Q1 z+ k- H0 `8 B8 G: r7 [& B- M! ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 Y7 V3 q c% E8 Z2 a VariantInit(&pokeVariant[1]); 7 F; R5 H$ Q9 P9 v
pokeVariant[1].vt = VT_BSTR; H# M& A7 Y' O! d- V& o5 x
pokeVariant[1].bstrVal = itemStr; ; F. r( t" x2 E0 q0 d % _# l- N4 ~2 `- t/ c2 T2 | topicStr = SysAllocString((WCHAR *) L"system");% L/ R3 v# Z/ C/ [! B/ d; `" v
VariantInit(&pokeVariant[2]); 5 M+ g1 \( k- z' K pokeVariant[2].vt = VT_BSTR;' w( v: W; `1 M5 o9 c/ V; Y$ l
pokeVariant[2].bstrVal = topicStr; ' w; _' V* b4 {5 w" z* V$ }* j" `: u) U0 H5 @
// Set the DISPPARAMS structure that holds the variant. 9 l2 }7 s9 A1 ?" i3 O( r( J6 p' O$ ^& x; L/ @
dp.rgvarg = pokeVariant; . X6 u/ W& |. l* D, | dp.cArgs = 3;* a! @& L2 d" Z- s7 A
dp.rgdispidNamedArgs = NULL; ( }4 n# a+ J" l ~) g* y5 R dp.cNamedArgs = 0;+ j6 m. z0 @1 r' o! {
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// Call IDispatch::Invoke() 1 M6 Z2 o0 C9 f% D7 _5 c + p, c% a+ f% F* [% @ hr = m_pDisp->Invoke(* f# d# g# \0 e, L5 ]
pokeID, ) V& A, c! Z5 t g3 M IID_NULL,& k$ p; i7 f: n& p5 |/ G- `7 S
LOCALE_SYSTEM_DEFAULT, % A1 G) ?, g7 B5 t, B DISPATCH_METHOD, 1 i" z. Z! O3 e2 B. H4 B( K &dp,; K/ e3 v( Y; ^4 t
NULL, 0 a5 h( F) P; F/ L) B6 b8 m8 }1 v8 p &ei, * }$ ^+ s! ?& C: o P5 c &uiErr);2 W- I% K9 e0 j& G( U
5 p( ]# _9 c2 B7 r- g5 ?
SysFreeString(topicStr); 3 u5 W4 L( _0 r+ G- ? SysFreeString(itemStr); + M8 _9 @6 R( D7 W& V SysFreeString(valueStr);1 Q8 X5 G7 f6 f0 j0 q
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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??? ! v- Q) f* @- f( b5 O( D; c: 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????% w# V1 s2 v; l2 c
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5 y9 L$ q' s M% Z2.这是request的程序, F+ p B* w# ~2 }
// Request a value from Extend 3 Q, o0 n- s6 I# |5 e//" ^* X3 S: O5 X& i
// Initialize the variant that will hold the BSTR. Set the variant's7 r1 ]+ s. \8 ]# t$ f
// type flag to indicate the fact that this variant holds a BSTR. Place the% @8 _8 P3 K5 V3 |5 \4 C6 C
// BSTR into the variant structure.) ]; L; m& W2 H |
' E# `, N0 u8 N: U6 f2 y8 V- ~2 n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 F4 k, D9 c1 c- H3 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); A# D) R* T% m! U7 F
VariantInit(&requestVariant[0]); / _9 i. n# e# Z! j- S r: Z
requestVariant[0].vt = VT_BSTR;0 M+ L: p/ Z- w# `8 k8 E3 u
requestVariant[0].bstrVal = itemStr; 6 q# X. @+ b3 ] ; g5 \3 h8 z% r topicStr = SysAllocString((WCHAR *) L"system"); , Y, X3 c! ?" f: j q+ o9 ^: x VariantInit(&requestVariant[1]); , h% B1 L9 R3 ^( d/ c' H0 v4 S- C
requestVariant[1].vt = VT_BSTR;6 \5 f: _: t% N" o0 ~
requestVariant[1].bstrVal = topicStr;8 j+ S( D6 C5 h- L6 ?2 O
1 B+ P) \9 ^% N' y6 b4 `" @7 V// Set the DISPPARAMS structure that holds the variant. 7 n8 J( ~2 G6 m# d8 F$ R1 o* [$ D' A' `8 _# e, C
dp2.rgvarg = requestVariant; , h5 U L' \& `# I9 {( d dp2.cArgs = 2;& R& b- J' K' \# h6 Y+ j* ]3 F. t
dp2.rgdispidNamedArgs = NULL; w" ~+ S$ u7 @6 X7 |& D& z0 B7 w
dp2.cNamedArgs = 0;1 p; w: \8 g2 [+ I/ E
) M) h) s1 l* P- W, g; ^6 K var.vt = VT_EMPTY; $ p% o2 o' L8 T" L 1 ^! b. w# Z* T6 d// Call IDispatch::Invoke()+ x5 s+ _8 e9 v, i3 f
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hr = m_pDisp->Invoke( ) {. w5 I# |+ r& i6 b requestID,* p7 x0 {+ ~9 E9 I3 O
IID_NULL,; j" @9 [# J4 [! W9 M
LOCALE_SYSTEM_DEFAULT, , v- j) a. U2 T DISPATCH_METHOD,5 y6 }/ k' i: P3 f! y5 G0 r. K" y
&dp2,9 q( ~1 Y2 t1 {9 w& f
&var,6 ?& @* `! b6 r+ z9 [8 l
&ei,: ~/ b0 V4 O6 u
&uiErr);( ~: }5 b4 X6 A2 t' R3 J/ h! j5 }
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SysFreeString(topicStr); , i% k; j& u# C K! \ SysFreeString(itemStr); ( n0 A* S3 [2 f- m请问该程序是获得extend里面的哪个值?1 }- C3 q/ S; d, v$ }2 G
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????