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:# P- M4 z+ A3 s, l6 ?; a9 t8 {9 ?( e
Name = (WCHAR *) L"Poke"; ; }- U# T' k* |; P ' o# L. X9 j2 g- K3 [5 [/ K hr = m_pDisp->GetIDsOfNames (" t& }; S& K/ W/ X' R7 J- _1 v
IID_NULL, // reserved ' v2 `( t5 m/ [/ V- F. K! ? &Name, // Array of names to get IDs for3 n( R+ X% {7 f2 @
1, // # of names in the array) j: m, U% u6 i% s, n I6 L, o: C' E4 @
LOCALE_SYSTEM_DEFAULT, // System locale * V' v3 ^' [2 t& D. |/ F; p. x &pokeID); // Array of IDs to fill on output( m" t U! S2 z$ k+ e
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if (hr) , G( {0 @# W3 x# S; y: a; | { 7 z1 v& h4 _ e MessageBox ("Get Poke Unsuccessful"); 8 @1 f6 S/ `7 M: m& B' |) o: L return;: P9 B! w5 D6 p. a, t. L2 b g
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- X8 w9 I- s0 b# I' q% [) k c1 s/**************************传递数据给extend**************************************// b2 g. M/ h. P ~- p/ l9 m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; Q: `3 Q$ p- Z) ^. ]( V
& t. a" r0 A' s valueStr = SysAllocString((WCHAR *) L"1232");) o1 V6 W4 c( R4 t; d9 n
VariantInit(&pokeVariant[0]); 6 y1 q* J/ a/ o5 J1 ?1 A6 O+ E, t. C- p pokeVariant[0].vt = VT_BSTR;8 [7 Q# s1 h6 P) Q1 |* a$ c
pokeVariant[0].bstrVal = valueStr;! l( Z" J* ?- M+ Z8 |( C
( Y/ I) p* ~& \+ K9 {, C9 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : h0 [; P! Q" c( p VariantInit(&pokeVariant[1]); , g( V# k9 u$ t6 p
pokeVariant[1].vt = VT_BSTR;: W4 p1 L6 c0 O$ ]# R
pokeVariant[1].bstrVal = itemStr;: p- L) I4 H9 l/ m5 g
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topicStr = SysAllocString((WCHAR *) L"system");0 {# t: H) H; w- N" L+ m" u7 N/ J
VariantInit(&pokeVariant[2]); - B7 }" A& U( t& b6 x9 R' H( h pokeVariant[2].vt = VT_BSTR; 0 I& ]+ ^6 o& Y3 f pokeVariant[2].bstrVal = topicStr; - p0 l$ J" [0 q! D) g& r5 g 9 m8 B! C7 _2 Z3 S5 Z// Set the DISPPARAMS structure that holds the variant.! D3 f( M+ ^% m. d/ p2 A/ C
/ l. {- V( `) g( |4 F# j0 } dp.rgvarg = pokeVariant; 3 [3 `5 _( M, N6 ~9 E( B8 {# i' m dp.cArgs = 3;. ]3 T g. _' ^! j
dp.rgdispidNamedArgs = NULL; 7 M* q t% a+ M6 e6 A dp.cNamedArgs = 0; 7 h `& w6 e8 d9 T4 y! t/ K; B- g4 `9 a
// Call IDispatch::Invoke()! L/ ?- g9 a6 x( h! {( c$ m& z
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hr = m_pDisp->Invoke(, o$ [! Y4 V% s u& {! L( q# c
pokeID,& _% x0 `4 ?/ v5 F
IID_NULL, - Z+ N7 D% X+ u5 O0 ^ LOCALE_SYSTEM_DEFAULT, 7 F, b% y+ p% e" o DISPATCH_METHOD, 9 U0 ] a7 o& `" o/ L2 n! l: \4 V &dp, F4 u: e; {" z6 P4 P3 ]
NULL, . @& n: ~/ Z$ u$ k &ei, - H# T" x+ @" ]0 |; D2 r2 V' v% X &uiErr); c( D4 _) W- S } ' a: i% n$ d( u4 I3 D SysFreeString(topicStr); K( G+ ?! Y, T9 V1 H- r. C
SysFreeString(itemStr);* C- \' o! R% ?! ~9 w) J2 n
SysFreeString(valueStr);# C# A8 m* w! W+ o* z4 [
0 W* }7 S3 c' \; C, M4 d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???6 Y- i6 Q% E- S4 ^; x. a% P6 J
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???? , y- r7 h6 H" a( F }/ L" v, x0 @9 n1 D
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2.这是request的程序 & ~; v7 K" G `, `# D: ]// Request a value from Extend 7 C' p( _0 h# b/ A% y* t//0 V! y0 k$ ^: c! n+ m5 ?! {5 |' i
// Initialize the variant that will hold the BSTR. Set the variant's : H) h- J* m X T- p' E// type flag to indicate the fact that this variant holds a BSTR. Place the : f* \- _; v5 j0 Z z// BSTR into the variant structure.. E6 w) |8 r) I" H7 V
7 Z4 l2 E" U' D// Set the DISPPARAMS structure that holds the variant.7 H7 {0 W$ ?$ ^; s* ?5 N0 h6 A
/ V: T( k2 E2 ~3 R0 V9 H dp2.rgvarg = requestVariant; 5 |: C, r& G+ n: Y( _ dp2.cArgs = 2; 3 n; G/ M; u# C4 ~2 P dp2.rgdispidNamedArgs = NULL;3 u7 E/ [& F1 B4 n! s, {/ |
dp2.cNamedArgs = 0;7 f+ @; a6 Q$ a: c9 ^
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var.vt = VT_EMPTY;6 ^, U8 T2 l e
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// Call IDispatch::Invoke() ! r3 m, Z' @% R. P3 C' n* z! i6 j. Q2 E# i" K
hr = m_pDisp->Invoke($ [* `' ~9 Y& k% f9 ]- Y
requestID, , e2 T/ R+ R! h1 p/ ?2 Q IID_NULL, 6 {2 p: u: {) e& | LOCALE_SYSTEM_DEFAULT, % y5 k, N( _! V' K( G DISPATCH_METHOD,; Q8 @% ~ c9 u% W/ O/ B
&dp2,& W) [0 L5 B( g5 k p
&var, - i9 y* g" t1 t- Z2 {- c& n &ei, 4 y; |+ l6 x( Z9 H! i &uiErr);7 q% o: V6 d" r7 `: `! _( A2 Q3 r
, p/ f4 B2 \; C SysFreeString(topicStr);3 n. d8 l, a; B) y t( e. Q* @
SysFreeString(itemStr); 6 f0 j1 M, M: L6 [6 Y) r8 _请问该程序是获得extend里面的哪个值? , M y" z. ~/ Q- H2 n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????