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: \7 l$ j: g! v* F
Name = (WCHAR *) L"Poke"; ( F* c% `1 F- F/ ?! f7 Y. e4 g # @2 k; j: f( l5 R/ G
hr = m_pDisp->GetIDsOfNames (3 w) Q7 D \$ m4 }
IID_NULL, // reserved ' C- \) `2 h k* V; F2 b5 ? &Name, // Array of names to get IDs for# I6 F- z1 G. }) ^8 J$ c7 Y4 x" A- D
1, // # of names in the array1 }+ \4 V: i! a: D+ V1 V* }
LOCALE_SYSTEM_DEFAULT, // System locale 6 F2 r! F! U0 N4 k &pokeID); // Array of IDs to fill on output + X3 t; u( _3 j& ?: z ! `2 \' v7 K" L! w5 ]% ~
if (hr) $ I8 z, p9 u7 r3 o2 Z h$ j# U { ( K/ T8 x; z, s% n1 x: h MessageBox ("Get Poke Unsuccessful"); & L6 b) c( `, N% K* t9 I! t) | return; ) v( d. E4 ~7 b) l; d }9 x; k- Z4 i, Z- o9 ?
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/**************************传递数据给extend**************************************/ ' t8 O7 j, U/ {& ~( \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 b* h( f! f" s% e& Z9 U* {9 s / z; {, ?+ T+ {# n& o% y valueStr = SysAllocString((WCHAR *) L"1232"); $ m4 @ H1 X% e VariantInit(&pokeVariant[0]); / A+ x8 o- F9 e! K& H/ h! ?$ r pokeVariant[0].vt = VT_BSTR; # T G; t9 v0 `! g pokeVariant[0].bstrVal = valueStr;' b& c+ v0 {1 _8 ?0 [
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 j- K4 ]! h, Z, Q c VariantInit(&pokeVariant[1]); ! g9 m) l0 X% \
pokeVariant[1].vt = VT_BSTR; ! ~1 l+ V. s5 \# m$ c pokeVariant[1].bstrVal = itemStr; ) ^8 \& Z9 e! d! H8 ^" k 8 Q* _: o' V* Z3 W+ O% L topicStr = SysAllocString((WCHAR *) L"system");" [6 ?. N, b7 C/ K: t
VariantInit(&pokeVariant[2]); 5 F1 ~5 X' N' t4 z. E- a# }7 b
pokeVariant[2].vt = VT_BSTR;2 Y- e }6 j5 j7 M0 m) n' c
pokeVariant[2].bstrVal = topicStr;. Z1 R4 q P8 G: S8 N, C, h7 v
) J$ q1 W$ N; A7 ` M4 k+ J; {// Set the DISPPARAMS structure that holds the variant.- n' `! W! w K) e# D
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dp.rgvarg = pokeVariant; 3 {8 }! Y' \9 }% ]% h3 q dp.cArgs = 3; + D e# Z) A, `; b dp.rgdispidNamedArgs = NULL; # p9 U* P# z) ?" Y dp.cNamedArgs = 0;8 p+ ?" x( u# o `
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// Call IDispatch::Invoke() / P* _- Y0 c& g& i( B$ m% G! j& r8 M8 Y
hr = m_pDisp->Invoke( - Q9 h) ^0 \# E: t9 m- | pokeID, 6 k4 I( C" j) S# ] IID_NULL, . ?- V( [4 T6 a( Z: E LOCALE_SYSTEM_DEFAULT, q6 I; J; T5 A; l1 \ DISPATCH_METHOD, ) X; G& V( u+ Z0 x) I5 c4 c6 z2 ?9 z &dp, ) W- H8 Q4 D% u8 w NULL,8 d, b6 D3 O" y f5 v
&ei,8 K6 H4 j: t! {% B
&uiErr); ! f1 g1 y8 z8 V( {' _, u, b# {/ m# j7 A8 G
SysFreeString(topicStr);$ K: C( Z' W' E9 J3 }
SysFreeString(itemStr); + A( @6 j0 M2 @/ |; O. t k5 [ SysFreeString(valueStr); 9 p+ ^3 o$ ~8 O, m5 b' Y! B7 R7 I) G: H5 u2 T8 ~% j: U! F( m' y
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???* [ N0 A. Y- `/ |4 ~2 D, p! y! x
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????# m+ A9 x6 ~7 U% B- m# `
' L; C! r5 j( w" c; `* s& |8 \ ) K4 H3 W$ T1 y8 r. y' ?2.这是request的程序5 t. K" Y( q: P0 D- W8 U2 j
// Request a value from Extend5 E( {4 q$ o! F0 d! G& [9 R$ c2 Q
// + I9 K2 G9 U3 I( p4 H// Initialize the variant that will hold the BSTR. Set the variant's ! x9 o) I: {/ ~: L3 e// type flag to indicate the fact that this variant holds a BSTR. Place the : v4 t8 E* M$ v/ l1 `' j3 @* o6 O// BSTR into the variant structure.2 i2 r; ] p" ?. l$ h4 l
! T' v* C* d% C% O3 q7 x4 ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 Y; R9 l" c% G. Z D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 d$ O/ s( z( r( _) {' [4 J1 Z
VariantInit(&requestVariant[0]); 4 h8 r: G0 C q5 I& V k8 j' c
requestVariant[0].vt = VT_BSTR;0 p' Q! m; q6 _; Y5 y6 a
requestVariant[0].bstrVal = itemStr; 2 F9 \( {& W* {( f- H: q$ z1 g, s! |* }( R7 U5 h9 d
topicStr = SysAllocString((WCHAR *) L"system");$ J2 n* w/ R1 r2 o9 ~5 y, o
VariantInit(&requestVariant[1]); ' M) u. Q# e. G6 V( v
requestVariant[1].vt = VT_BSTR; P& }, {% o( u Y( s4 n
requestVariant[1].bstrVal = topicStr;- b0 I" ]' d- {$ `# {% B/ b
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// Set the DISPPARAMS structure that holds the variant. $ e, b& p/ V6 v- c4 h% ?/ j4 {0 }6 ?& ?0 M4 }6 F ?2 v
dp2.rgvarg = requestVariant; # e7 l, t/ I7 S0 e dp2.cArgs = 2; 4 \. ?) E! V7 `0 s8 H dp2.rgdispidNamedArgs = NULL; 6 h: b' F% h& d; [9 p' N dp2.cNamedArgs = 0; 9 x5 A [- z9 \6 g) W1 N: B $ U7 [' a. F4 S4 i( U var.vt = VT_EMPTY; * B: z! i) z* H6 V7 W 5 s; i$ p& x* I$ W* Y// Call IDispatch::Invoke()( ^ O0 Z& l! }/ S3 ~- \# S
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hr = m_pDisp->Invoke(' S) {+ z! J; G; w* B7 u8 n( K
requestID,; @$ h/ d; w% [! ]6 M! [
IID_NULL, - t8 a& ^. l6 } LOCALE_SYSTEM_DEFAULT, 7 e8 } T; W. {9 h, G/ C! O* O$ } DISPATCH_METHOD,' Y9 b% M' }7 \# {3 z
&dp2, & N+ P0 [& ]; |5 ~) b& n0 I/ B &var,$ G* b, B! P, c+ s- v
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&uiErr); - K: O/ G7 u9 x( I% F, n& V6 o7 V7 I 5 d4 c/ `# N C+ ~$ N2 t7 s SysFreeString(topicStr);2 {9 B: P4 U: U, R; C5 H& L
SysFreeString(itemStr); " \$ W" U) m4 H# \ A请问该程序是获得extend里面的哪个值? " p% ^( g. i' m* H ]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????