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: : [; c9 G3 A. H0 CName = (WCHAR *) L"Poke"; - {- q! s5 p7 r1 |% G " X3 V3 \/ j' s( i7 e
hr = m_pDisp->GetIDsOfNames (! j4 N; g9 n, Z
IID_NULL, // reserved# o! k3 f" k( Q. n/ u( u4 a
&Name, // Array of names to get IDs for* l/ D7 K, @3 m$ e8 _" C5 H# W
1, // # of names in the array 4 @: S8 n4 v$ D" i LOCALE_SYSTEM_DEFAULT, // System locale( f. C8 Q% j4 B3 x- \9 u) E4 J
&pokeID); // Array of IDs to fill on output& u+ M# S% S3 a# u: L) f. e
. n7 x# n4 [# c4 N: l5 B( }
if (hr)9 A, `6 J) C' |) N6 ~! A
{ 9 q. i9 _4 o9 U) {5 j, E$ ^/ f MessageBox ("Get Poke Unsuccessful"); ; C2 v( Y* Z" Y8 T2 J: L: E0 a B7 r3 ~ return;1 ]8 U! t* r* d
} 3 n1 D; V# _* T" f ; G3 k9 V0 M: t) F S/ v: g. K/**************************传递数据给extend**************************************/0 W8 z4 r) u2 @: R- v3 |; f% _: C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 o! w* w6 t) k9 l
( F2 ]1 P: f$ w! m3 H: g
valueStr = SysAllocString((WCHAR *) L"1232"); 9 a8 t" ?6 q! `, i VariantInit(&pokeVariant[0]); + {% U% F" \, c2 h' V pokeVariant[0].vt = VT_BSTR;- v% _' e: f2 I% H7 J3 D/ k9 W# b3 j
pokeVariant[0].bstrVal = valueStr;& v5 ~, C% s+ w+ B' p$ H5 R
# |& b, d) u" F3 O1 e$ _ k4 ]% W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% |. V8 C: P k' |3 I
VariantInit(&pokeVariant[1]); & m* c0 H9 H* k& q. t pokeVariant[1].vt = VT_BSTR; ; p# d% {& T) a: H pokeVariant[1].bstrVal = itemStr;! J W0 N! x3 J& T
# o7 v: a# Z) t3 `5 G4 w0 x3 K
topicStr = SysAllocString((WCHAR *) L"system"); ' t& k7 s( l# m% g8 h( Y' @' ] VariantInit(&pokeVariant[2]); / E( q9 B/ _; D6 o
pokeVariant[2].vt = VT_BSTR;$ w3 P/ W0 z3 {; Q
pokeVariant[2].bstrVal = topicStr; ) U' U' F# F5 y4 [- _5 N6 ~3 u+ O1 a
// Set the DISPPARAMS structure that holds the variant.7 G) ]9 D- R6 |0 ]
# V* {9 T- g. R# ~9 Q) B5 d
dp.rgvarg = pokeVariant;4 ?+ |' g! K6 n" }/ s. k. H) H' T I2 O
dp.cArgs = 3;5 ?0 o" g1 G: C+ P4 ^6 M
dp.rgdispidNamedArgs = NULL; 1 a8 \3 r8 H p3 ? dp.cNamedArgs = 0; ! z5 Z% E/ C' I0 S" Z : `6 e f+ h. e! R2 g' K// Call IDispatch::Invoke()4 Y6 Z8 `) Q8 L% `
1 |: P3 w2 r2 Q9 F. ^
hr = m_pDisp->Invoke( 1 \8 ~7 E4 U! O; c2 ^ pokeID, ) T. ]1 o* {5 V* ~. _5 M IID_NULL,3 S$ {6 C v$ V$ }5 @% Y) V' e
LOCALE_SYSTEM_DEFAULT,: t$ F: P% J4 C' }0 z/ u
DISPATCH_METHOD,; h& F; M" w; O9 t' I
&dp, - ~8 Q$ u! a" I2 r" k: \$ Y4 Z NULL,. F: \7 j/ S. \$ Y( Q- Q: R
&ei,3 p) H+ T) p9 y: v2 h+ G
&uiErr); 0 m6 w2 q# B6 k% L 4 ^4 _* q; I" ^6 S% b SysFreeString(topicStr);' I3 E) i4 B+ S7 `- I+ T" M
SysFreeString(itemStr); : @3 A8 I. y' c* h% C SysFreeString(valueStr); + L+ z: \; p+ S, x - c4 l; b$ Z7 h1 p7 V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 G+ y" D ?- r$ k
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????" p: K* m" }# h& W: ^5 o h3 X9 U
: i; v- v* A' \! S 1 b, x$ Q+ z1 @! f% l2.这是request的程序+ H* v* ^ u7 L' d, K% a
// Request a value from Extend& j- {, V6 I0 p
// }. r! C; B' y, x2 E( T// Initialize the variant that will hold the BSTR. Set the variant's 8 f9 n( U4 o2 Q% d* x: l// type flag to indicate the fact that this variant holds a BSTR. Place the ) J3 p, P5 P/ R* ?+ R Z6 I' o# x// BSTR into the variant structure. $ |" J( q& V( ?+ ^! @8 a# M4 Z5 F9 M# s6 j9 ?$ R$ L0 m# ?9 ^" k" s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ i6 G( x+ f2 \. m
8 B3 T/ m1 J, T f) p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; A V5 | _$ Y, J* D; T+ C VariantInit(&requestVariant[0]); ' i2 `9 u0 a; o; E
requestVariant[0].vt = VT_BSTR; 6 |& m9 N# D; b, d) v; D4 I requestVariant[0].bstrVal = itemStr; 1 V* I; u' N4 h- ^2 B; E1 H/ z % v6 F1 I& U# S/ R9 D( c# { topicStr = SysAllocString((WCHAR *) L"system");6 n2 i- V: h8 b) G9 P6 m0 d$ N: j
VariantInit(&requestVariant[1]); 7 _! Y6 E; z/ Q- u* ^
requestVariant[1].vt = VT_BSTR;" s- ]4 A7 L7 v. a' z" o$ O1 N
requestVariant[1].bstrVal = topicStr;0 @# o. b, E+ w* A6 ]% k5 w
I2 d9 ]/ m' W: a' F: R
// Set the DISPPARAMS structure that holds the variant. 3 @' v0 X! R9 Z- N$ f ; G: O; ]1 k! h% c5 X9 u; q dp2.rgvarg = requestVariant; + u' b6 z! k' M e0 h dp2.cArgs = 2;2 B8 ?5 o. O+ p1 E
dp2.rgdispidNamedArgs = NULL; 9 D6 d D/ k) W9 z# a6 s) N" N dp2.cNamedArgs = 0; / H7 J( A `6 S% _; {( p # b/ y M5 B2 d4 N var.vt = VT_EMPTY;' {8 ]3 n$ e1 v% n! K0 \
/ \/ e2 l# z7 d h- n9 M
// Call IDispatch::Invoke() 8 L1 ]* g0 R, N9 u " U j* L( _$ ]7 \; G) E( A- p! | hr = m_pDisp->Invoke( 5 Y5 u2 a) |$ f requestID, $ q1 M N5 r5 q6 r, H/ s IID_NULL, 1 E0 I- \; P+ Z5 z' ]% n: ]$ R( J LOCALE_SYSTEM_DEFAULT,/ Z- ~( h* {: B( u3 u& @) b- v8 K
DISPATCH_METHOD,) N0 v3 w/ K- ~2 _# [4 Z/ F$ c
&dp2, ; @" s) M1 d7 J4 x |+ i &var,2 s( i0 B X, J/ H# n
&ei, ! V) m1 `" t+ o' E0 a# G2 l6 s &uiErr);# ^ w7 {' S0 O& g/ T
) b) s, B# B" `: n7 |% x SysFreeString(topicStr); " d3 M; ~( x0 n8 O SysFreeString(itemStr);7 ]' M, X* i/ x) F+ D m8 ]
请问该程序是获得extend里面的哪个值? , q( S3 @& f; O ?8 \2 r% [$ r U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????