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:( Q, e' t6 M" F( F
Name = (WCHAR *) L"Poke"; 4 t- s3 E5 w/ r8 n S( ^* a5 x " z& \0 h2 F5 D) S. w6 Q) H' ^6 k2 a
hr = m_pDisp->GetIDsOfNames ($ j1 }5 v' h# T3 s' y. z1 A; o
IID_NULL, // reserved, A7 s9 k+ q" h
&Name, // Array of names to get IDs for $ U2 V# `& s% ?; b. r) x0 i+ L 1, // # of names in the array $ l# N8 W ]& b" s4 o LOCALE_SYSTEM_DEFAULT, // System locale' m; x: Q2 ^6 o
&pokeID); // Array of IDs to fill on output 2 u( Q( i. ^) B! U- b , }, U" n4 E9 i if (hr) N' T. o, n5 e* F {" q' }0 F% q! T/ I, |
MessageBox ("Get Poke Unsuccessful"); & v& _; D: E0 h0 A. f return;' N3 y B6 C) o
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/**************************传递数据给extend**************************************/ ?8 K N: ~* |* _4 d" I5 s% E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : D2 B; m% S* B; L' X5 V 7 m; N2 B( ^( e" v1 v valueStr = SysAllocString((WCHAR *) L"1232"); ; b) A9 t+ ]. F M3 w VariantInit(&pokeVariant[0]); 9 V" [, ^; o; c- H/ Z
pokeVariant[0].vt = VT_BSTR; ; Q) R2 x) L' r2 }8 D/ f! a pokeVariant[0].bstrVal = valueStr; + Y! X5 m$ _8 s# P4 a9 h 0 x7 ?2 q- [ H# A; Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 W4 _! f4 v; r/ Q VariantInit(&pokeVariant[1]); - c% f) u7 p: Z pokeVariant[1].vt = VT_BSTR; ; q) ?/ o+ L) Y } ^ J0 z pokeVariant[1].bstrVal = itemStr; - V% f2 N: u. W) a1 }6 w- ]6 q& J7 b: P) @7 G2 o2 [
topicStr = SysAllocString((WCHAR *) L"system"); ) l5 l" E8 A. ?$ v VariantInit(&pokeVariant[2]); : H5 ^2 Q8 C! G ^ P4 [
pokeVariant[2].vt = VT_BSTR; # P* A, i4 q8 N0 d; W h5 O pokeVariant[2].bstrVal = topicStr;7 D4 @) G& ~* g6 t( Y( h
, [) N- x' \8 l0 Z. \ i// Set the DISPPARAMS structure that holds the variant. - H$ I5 ^ ]+ I A& s" P X2 G5 H1 c3 ` 4 z+ T3 G$ T6 p3 p3 p5 }; s dp.rgvarg = pokeVariant;- R4 ~, F7 _! M _" O
dp.cArgs = 3; ! u! f/ j+ B6 D5 f dp.rgdispidNamedArgs = NULL; 7 |5 Z, E; E+ N5 {0 @$ j dp.cNamedArgs = 0;7 k* c. J" i; m. Z5 o
9 N& C- q' S i% n8 k// Call IDispatch::Invoke()* k$ p% M# W, X. X# R0 Y
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hr = m_pDisp->Invoke( 9 q: L) [5 l* b pokeID, 1 X/ G" ~7 \' D IID_NULL, 3 G; A" y1 J' N% \" Q: ^3 ~ LOCALE_SYSTEM_DEFAULT, D. {3 j! [+ ?. l% D: [- m/ B+ ?
DISPATCH_METHOD," y) K9 F; p! W
&dp,! D8 p8 \, D1 R! u
NULL, 4 [2 K5 Y' B. { &ei,9 a3 f) d8 Q z! @' c* S
&uiErr);& f o$ u4 Z! V8 ]' X
* }1 P. b- [# ]5 q/ w7 Z- h SysFreeString(topicStr);! ~) B9 Q7 g+ ?, K& b6 B S4 [
SysFreeString(itemStr); 9 m1 d( {6 `" z7 `, I1 }; M SysFreeString(valueStr);3 H- U9 E, S6 z; W/ G( y
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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??? 3 T( j5 ~3 ?. c. c, V9 ~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????( r3 s4 e8 }3 [" ~5 S, a: ~+ X( O
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2.这是request的程序; H5 {1 H) ^& N8 ~- Q
// Request a value from Extend- w4 w& f; P0 |. j, [
// 4 T$ u7 X+ M3 s, V4 j3 Q; `# f* g// Initialize the variant that will hold the BSTR. Set the variant's; C' T5 O4 Y; c$ k2 Z
// type flag to indicate the fact that this variant holds a BSTR. Place the ; Q. I( e- y' {) G0 h// BSTR into the variant structure. 8 i0 W) _. }! }6 T6 ~6 i1 E& L3 N# W: h1 h ]
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ w. [% Z) m1 K9 }. I8 p. G 6 z8 l' S0 D9 l, e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 T0 u1 m0 z1 i* ]) f2 H VariantInit(&requestVariant[0]); / ]0 j H" m, i$ ~4 t: {; T! a requestVariant[0].vt = VT_BSTR; & T4 G8 q" p x) z' h% ?2 y" N requestVariant[0].bstrVal = itemStr;4 N D) A# p! k1 B
; g6 i( O1 u& U$ i: g; W9 Y topicStr = SysAllocString((WCHAR *) L"system"); 8 P! i5 w- A: g: l+ w# `) H VariantInit(&requestVariant[1]); $ x4 ~) k! g9 {0 Z! z
requestVariant[1].vt = VT_BSTR; W1 p0 p" |& V/ b9 ^3 a# k/ ?9 t
requestVariant[1].bstrVal = topicStr;" i; o, x7 q: g
, o% n* J; E# w5 Z0 H. o. M// Set the DISPPARAMS structure that holds the variant. " {* \2 c6 ^6 y# w" m ! P( [8 A% `" h" \: b dp2.rgvarg = requestVariant;6 O" @1 W' I, v
dp2.cArgs = 2; / | c# K, R# l3 e dp2.rgdispidNamedArgs = NULL;% A+ q6 G/ t$ B7 O7 E) |
dp2.cNamedArgs = 0; / Y, f8 @5 l" D& B 3 h- I) I0 `7 ^7 q var.vt = VT_EMPTY; , n8 q1 o4 J. i$ ?6 t( k% m! @ ]2 N% T j' t8 T$ O* n
// Call IDispatch::Invoke()2 L' U5 m& {$ t j9 S. n: S
& e. g0 w0 h1 w hr = m_pDisp->Invoke( , l% H6 x& H& |4 q: k1 s requestID, 6 w5 U/ [8 s/ q IID_NULL, 0 g- s& R) Z. I5 p) ]9 t4 v8 A$ W LOCALE_SYSTEM_DEFAULT, % ^8 B% M1 ^6 \" q1 O5 o/ U DISPATCH_METHOD, - w2 {# }" }0 c2 _ &dp2, 9 F5 |7 w9 c, Z" e0 P S6 {4 z &var, 8 {+ g+ ?6 ?/ [+ k &ei, . ~( u5 D# @% J. j9 G: } &uiErr);0 |) J2 ]+ A. K/ K# m, P% ^' D1 @
9 {, q0 y/ A2 ?7 d6 R0 n! {+ ?' B SysFreeString(topicStr);8 Q" a( R6 }3 O* C. Q( M
SysFreeString(itemStr);! I; g5 Z: O( N5 _+ Z
请问该程序是获得extend里面的哪个值?& S" K: A$ C/ a3 K
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????