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: 9 y, c8 K- ~ ~% l1 XName = (WCHAR *) L"Poke"; 1 F% ?1 P# {: S, k: S6 |4 s( p 2 R% E. `# l% M+ h2 b- Y- e3 h! |, ~ hr = m_pDisp->GetIDsOfNames (% w+ Q! \0 b7 i" `3 T; U7 y' @
IID_NULL, // reserved , Z3 |/ ^" r2 e$ v &Name, // Array of names to get IDs for 3 o" v( E d n% O* z' W 1, // # of names in the array% E% i+ H7 u- Q" y t8 A- A# ]1 F
LOCALE_SYSTEM_DEFAULT, // System locale 3 m/ B7 _3 J4 \3 W' x8 G9 W/ _% ~ &pokeID); // Array of IDs to fill on output ' }+ B6 f9 f! D- U, C$ T: s% Z- c% a8 A 4 s/ P# ]8 A6 M3 Z if (hr)5 o% J3 l' W, X* w0 ^/ O" I
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MessageBox ("Get Poke Unsuccessful"); 7 n8 q$ K; ]" A6 E ]- b return; ! | F* I2 @; p; N# I+ u7 T) U }3 N9 Z% D' S5 N3 d2 |
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/**************************传递数据给extend**************************************/ ( p3 Y( t, c, J0 p( u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ R5 ~0 y& ~% Y2 q* ~4 ~
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valueStr = SysAllocString((WCHAR *) L"1232"); 5 K8 k/ n: x3 [) E2 N VariantInit(&pokeVariant[0]); 2 B- d$ \3 s3 ^! Z3 m
pokeVariant[0].vt = VT_BSTR;* G! z- _1 k# K; A! k
pokeVariant[0].bstrVal = valueStr; 9 ]6 f) j- Y* j6 ^% @+ ]/ K B) l' @6 b: T# x7 ~# O1 G( q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 u0 ^! Z- M, r9 x. X
VariantInit(&pokeVariant[1]); ! w: X6 B4 ?/ @& m. E6 I
pokeVariant[1].vt = VT_BSTR; ' O6 N3 W) e) C2 F5 ]* e5 M, X" w pokeVariant[1].bstrVal = itemStr; : s8 X9 G/ D; Q+ Q: w5 D" ~9 G" [! A& l( A- y9 `
topicStr = SysAllocString((WCHAR *) L"system"); ' d0 ?' [3 \" i# ?( R7 d7 p: c VariantInit(&pokeVariant[2]); f% z, Z% Q/ [- D" {7 a
pokeVariant[2].vt = VT_BSTR; / ]0 D% w( J0 C/ R pokeVariant[2].bstrVal = topicStr;# B! B9 S) n8 ~
9 s9 a! N: _6 ?$ R// Set the DISPPARAMS structure that holds the variant. ) ? g! G9 l. }" N + Z% o% L0 w; ^+ @6 J dp.rgvarg = pokeVariant;" m! q7 ] `/ g
dp.cArgs = 3;( ^) _) P/ R5 j
dp.rgdispidNamedArgs = NULL; 5 V, l' M) O! Y6 R* O4 V7 ^ dp.cNamedArgs = 0;- H) r: p& }* v. [3 |1 n7 `$ L) _
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// Call IDispatch::Invoke() 6 I/ s5 N/ s7 A9 R4 b* M. {4 D/ ?' f ; N0 I9 W4 q6 W hr = m_pDisp->Invoke( & N1 L8 s& l4 M7 m' K& s pokeID, ' i; h% R2 N8 g ~: w" y6 J; F/ r- O IID_NULL,1 ~+ b& H+ | Q
LOCALE_SYSTEM_DEFAULT, : s3 l; p- R: w DISPATCH_METHOD, 0 | ^! M& o% g# O- |" n: O# n &dp,4 i( O; G3 G0 y p7 M
NULL, ; E8 V: g% D: `0 ] &ei, : ]- U' _6 I6 G9 D* f( a& d &uiErr); " V/ P2 S, S }/ u! j i4 H4 }/ L3 c
SysFreeString(topicStr);# c; x* ?7 ~( c& E- B d$ I+ Z. V
SysFreeString(itemStr);- \4 I5 O6 d: Q: J$ o2 [
SysFreeString(valueStr);0 e6 J! R; C6 B; T2 u0 Q# |" r
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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???8 Y1 l3 {, G3 N8 {' n
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????3 N4 @% a5 w# O0 e' L E( U
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' }8 }1 x3 _4 N5 {( x3 }3 {2.这是request的程序 ) }7 w. ?' e: m0 |7 ]& b// Request a value from Extend) z' }3 ?( {' Q4 u' Y
//& b K7 S3 x# C) [
// Initialize the variant that will hold the BSTR. Set the variant's8 b1 f- \: ^7 N2 }
// type flag to indicate the fact that this variant holds a BSTR. Place the# u' s4 g' c6 B0 K
// BSTR into the variant structure.! k4 {; W/ N+ F% B; p. V2 G
' W0 q: \8 o4 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* g# O$ {" _( Y j
2 |$ W4 A. k' S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! ^4 Y4 F- U0 F7 a
VariantInit(&requestVariant[0]); + d% K! D6 }: o* b
requestVariant[0].vt = VT_BSTR;7 q; E! l/ E9 l4 y- c, p" `$ ~7 |7 }
requestVariant[0].bstrVal = itemStr;- J$ ` P3 E `; t
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topicStr = SysAllocString((WCHAR *) L"system");9 F9 {; }: R( j" t
VariantInit(&requestVariant[1]); * b7 M' X2 _- O5 ]- U: j# O' N2 ?$ J requestVariant[1].vt = VT_BSTR;. T# M' _# c# u0 ]3 ]) Z2 `0 V
requestVariant[1].bstrVal = topicStr; 0 G" k1 w6 l$ X9 F! t( e ( V t" W7 S6 E& E7 R// Set the DISPPARAMS structure that holds the variant.' C0 o. a4 K4 d- F$ L9 ~- I
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dp2.rgvarg = requestVariant; % h; e$ j0 T1 }2 R. [2 @; I dp2.cArgs = 2; 4 ]$ R: n! ?' V" ]2 ~2 P5 U$ S dp2.rgdispidNamedArgs = NULL; + @) ^/ A2 p9 ] dp2.cNamedArgs = 0; 0 n {; F$ A. z3 z$ h$ b9 R + w; w4 M2 |/ h( E$ k$ q# Z. z var.vt = VT_EMPTY;) T* e5 P0 x# \$ }
2 B. d- I+ j* H6 h4 e# E J* B& C// Call IDispatch::Invoke()+ H- w7 ]# F1 Q/ r* c
/ r T( M% X4 | ~) o, W hr = m_pDisp->Invoke() M( r& }( _6 A) e$ G! y/ Q# H
requestID, # a6 d* A1 O/ t: h) j1 \! W, O IID_NULL,/ P0 c7 _' R: ?
LOCALE_SYSTEM_DEFAULT, . Z5 @8 v6 H" g DISPATCH_METHOD, ! ]+ G5 Z/ r- L a) S &dp2,: T& S; A) ^% y0 l( a7 Z( u) l
&var,3 a; g8 l! g6 J# C
&ei, % d7 [/ M) [- M" p' ~ &uiErr); M" \$ j e* P
3 u. k5 ^7 o& t( B( P SysFreeString(topicStr);) r+ e0 H( i# u/ f
SysFreeString(itemStr);$ K- a8 M& x# X* g
请问该程序是获得extend里面的哪个值? ( K( z- J; S7 s& G6 v" P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????