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：( i% u8 v, i- |; W- L
Name = (WCHAR *) L"Poke"; 4 P- J$ s" r* O5 X6 m/ i+ H % z& u t- Z8 A+ d$ G
hr = m_pDisp->GetIDsOfNames ( 8 V: D/ Z1 K' k6 X4 R9 Y# ^ IID_NULL, // reserved# f! B2 @; t v5 @% v/ ]) |6 K- ~
&Name, // Array of names to get IDs for " G2 i( W# ]. v5 C8 K5 r 1, // # of names in the array( p3 M/ a/ R- \9 ^2 {+ U
LOCALE_SYSTEM_DEFAULT, // System locale4 G1 V4 p' J& d& a' A
&pokeID); // Array of IDs to fill on output 4 x: G n, v0 P Y( i 6 m5 P& b6 I) c: H3 v if (hr) 5 U2 I$ f$ w I* R% H, f& n5 j2 \$ V { & j# B' t* i: K5 K9 `/ W8 h$ g6 ^ MessageBox ("Get Poke Unsuccessful"); + r# B+ o- k( o2 y return; ) H5 F& Y7 W( K' f }2 i9 L% \2 ~* V# e" x' ~. R0 n
! g, H# L: @9 X! _/**************************传递数据给extend**************************************/2 O @6 f) F8 D h& H/ W% C& T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 A5 L! R. ~' O
* O' y4 j. V/ `2 z# z& P2 Z0 x" E+ E valueStr = SysAllocString((WCHAR *) L"1232");) P* q0 X( a: [! B& r, _- [' K+ }
VariantInit(&pokeVariant[0]); ) H; g9 `; p7 b& V+ |
pokeVariant[0].vt = VT_BSTR;: x5 x }* d) ]% H! O2 J
pokeVariant[0].bstrVal = valueStr;3 a% ~, X' m5 L* [$ F% a9 [" U8 T
, h1 _* L F& B1 v/ k2 x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ?6 r, O1 F. |' }8 e VariantInit(&pokeVariant[1]); ' S V5 h) C, y) R2 Z# y9 f0 w pokeVariant[1].vt = VT_BSTR;9 K/ S; }4 I9 @" f! u6 ~7 p
pokeVariant[1].bstrVal = itemStr; 4 |& z( ]* o1 y& T8 E' ^, u7 g6 w( \* }. z
topicStr = SysAllocString((WCHAR *) L"system");* ^+ W. v( ]8 _
VariantInit(&pokeVariant[2]); 9 _; ]* k9 ^( |. o% U6 S& r9 E. j5 d7 o
pokeVariant[2].vt = VT_BSTR;1 i& k, l( T1 N" |5 u
pokeVariant[2].bstrVal = topicStr; 6 E3 x9 H& M2 G) }3 X5 `) U0 Y3 `) U1 @+ b5 W, c; K! y
// Set the DISPPARAMS structure that holds the variant. 4 ~# G) D" F# a0 T& s, O) J+ z1 i" h; x' p
dp.rgvarg = pokeVariant; 4 x# G6 m7 A) K, P% A dp.cArgs = 3; 3 r! j7 K8 s$ ]( j$ S7 ^& `, l! @ dp.rgdispidNamedArgs = NULL;3 V% G. ?6 i5 c
dp.cNamedArgs = 0; 2 K4 l! g0 A; `% [8 H9 w# O' N% P1 |: u; ^. l5 ^ I r! l
// Call IDispatch::Invoke()% V6 Z7 A( m5 _1 A5 r* W
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hr = m_pDisp->Invoke(' n {' }- n. O
pokeID,' r! B3 O6 ~6 f4 T0 T$ `7 v
IID_NULL,+ d9 h# _+ W$ V1 z, C
LOCALE_SYSTEM_DEFAULT, & [, U/ p6 t; D5 o' x DISPATCH_METHOD,/ {$ }# t/ X! x- g6 u" n( j
&dp,! g. }) `6 \ y; m( s2 r
NULL,2 d! V8 x h: k. N$ V, A, \) m2 u- ^
&ei, Z2 u& _$ Y( a. Q9 }
&uiErr); + o' k* i# Q; \% X6 N % n' A6 L. Y, i [6 q m SysFreeString(topicStr); ' s m# O! ~! N( Z- N8 [ C SysFreeString(itemStr); 4 n! r( w/ b$ k8 i& _, x SysFreeString(valueStr); 1 ]& ?. R0 T+ h& k7 W/ N* k( y o/ d, u- d' K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？？？ 2 b' p8 Z% B, U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？？？？ 6 C3 g4 Q. q8 z! x& o7 V1 g7 |1 z: L $ R; e1 C/ B- m4 m5 q+ ~" O' C' S% ^4 g6 D1 F. T" I$ E0 H
2.这是request的程序 ; m/ r9 g7 f5 Q0 f, R* L# m* Z// Request a value from Extend: k2 Z1 s# C. i4 ~& C$ v+ g
// ( r& K! V8 O: {, N// Initialize the variant that will hold the BSTR. Set the variant's ) Q( {, K% ] f0 H" R6 E// type flag to indicate the fact that this variant holds a BSTR. Place the ( b8 p8 r, U0 w// BSTR into the variant structure.' I5 M. m" w: j5 v! _. q
. ^0 ?2 [2 ]: U2 g* r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 O' Q% R( Y6 ~! Q9 H$ Y$ O
8 h" {/ W* C: u( g+ |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- D' I m% D) T
VariantInit(&requestVariant[0]); 2 L! D8 f8 g9 A6 A
requestVariant[0].vt = VT_BSTR;2 V" R) W- ?: L: U$ e2 Z3 l T9 `
requestVariant[0].bstrVal = itemStr;* a5 e2 q3 y/ e$ J: R' B
. R! U# H6 D6 n: O& B; a topicStr = SysAllocString((WCHAR *) L"system"); % P! R3 o/ o$ b& X5 I- Z; O VariantInit(&requestVariant[1]); 2 S. C5 Z) u4 P e8 p8 c/ R requestVariant[1].vt = VT_BSTR;( f/ B4 z2 I" G
requestVariant[1].bstrVal = topicStr; 7 C/ ]" u0 s1 W% k- s( ?3 Z. h1 m+ }7 o: J- F3 @
// Set the DISPPARAMS structure that holds the variant.6 T0 D3 M8 f& G# x
/ T3 s9 z2 W L- `1 e4 W A dp2.rgvarg = requestVariant;2 x6 @4 \. Y1 M, ~. m6 \9 l0 O
dp2.cArgs = 2; 9 d! q; i3 Y& U6 Y; e8 x; V1 k dp2.rgdispidNamedArgs = NULL;6 B' }, C* T. u- y [
dp2.cNamedArgs = 0;* ^6 [, @. i! T! n# f
' B/ p' Y$ Y; i/ s% K. a$ Q# W9 b var.vt = VT_EMPTY; , w- f4 Q5 X5 v. b2 N" F" L" }! L* V% S8 P
// Call IDispatch::Invoke()- C7 S% x: \2 d* a4 L
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hr = m_pDisp->Invoke( 6 l$ _1 O! o3 N% A1 I requestID,( N/ A( ]# R; @5 {
IID_NULL,9 p! E- d( M" Z) l7 a F$ D* D/ j4 I) `" t1 P
LOCALE_SYSTEM_DEFAULT, % X: _5 o( C/ v: j: V DISPATCH_METHOD, # \- ]7 P7 P2 ]3 j6 b &dp2, 4 X+ L4 G1 G1 j8 Z1 L0 ^, E; f &var, 3 L) q C! I" e; X &ei,) o+ s# P* N' h8 u. r4 T/ \
&uiErr);+ w% {# a! K% X2 z, a! f
5 }- x' [1 Z X: v, i SysFreeString(topicStr); + L0 F. F; ^' Z# C0 K- ?# S! o" N SysFreeString(itemStr); 9 E5 c+ P- A ^1 S2 B请问该程序是获得extend里面的哪个值？6 I/ U. y9 Z8 I1 y
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？？？？
发表于 2008-11-25 19:37:03
