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- S# G) @7 q4 }1 Y
Name = (WCHAR *) L"Poke";9 y( I H6 L% O% v1 }. P+ f Y
! K5 E( c+ z; Y X6 B hr = m_pDisp->GetIDsOfNames (, ~; Q+ t, W6 b& V8 o( A
IID_NULL, // reserved 5 A, ]( \. T Z- s) Q2 O &Name, // Array of names to get IDs for% t. B/ j; `: c2 W: d- ~6 B) v$ A
1, // # of names in the array 0 P2 s% f0 t( Q8 L0 [3 i LOCALE_SYSTEM_DEFAULT, // System locale 3 i2 H# J0 k. D4 u3 S1 R &pokeID); // Array of IDs to fill on output " ~. G0 m% C$ v/ m5 ` * C5 {0 i5 W+ D2 B1 v9 X3 K6 h
if (hr) 3 D. r7 Q) _0 b9 j6 T7 c1 s { 4 M% f3 z* y; E ~7 T8 ?6 Q MessageBox ("Get Poke Unsuccessful"); 6 t4 b9 [: Q$ I6 N0 U return;5 C' i; l/ C5 i: ]
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/**************************传递数据给extend**************************************/ , I9 r: H: C9 C' S7 H) a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# v, V i( y1 E
- _" v$ J/ ^# o/ B1 ?( B/ i valueStr = SysAllocString((WCHAR *) L"1232");7 [+ `7 c0 J2 U' n) U
VariantInit(&pokeVariant[0]); 8 t3 M1 F8 s: t; n9 e0 ^& l5 v
pokeVariant[0].vt = VT_BSTR;) g' L" T1 d; m, q) \. H7 e3 V
pokeVariant[0].bstrVal = valueStr; ; _4 Q+ u, [3 Q. C7 O5 A % c! K, y/ i6 _9 l' |/ | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 p5 ^6 [! b9 c# S8 p% C+ L
VariantInit(&pokeVariant[1]); : O4 u4 w- l O- w# M pokeVariant[1].vt = VT_BSTR; - U+ S( V* S4 u" @ pokeVariant[1].bstrVal = itemStr; 1 S8 Q5 y6 a& ?8 s0 T3 b' A" x 4 V! Z ^4 v: e" \' W topicStr = SysAllocString((WCHAR *) L"system");. A, _4 E1 N- U; W1 d$ c, G
VariantInit(&pokeVariant[2]); ' l% s; b. q2 A) s3 W7 n) c4 y
pokeVariant[2].vt = VT_BSTR;! r# ], h$ {, k/ X0 H
pokeVariant[2].bstrVal = topicStr; : R* V# s8 D& x* k* L0 q' a/ r& G8 Z8 p& G
// Set the DISPPARAMS structure that holds the variant." O' p$ C8 J+ D: v; T
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dp.rgvarg = pokeVariant; 1 K( @0 Q% E$ H, v6 ]5 X B2 { dp.cArgs = 3;* Z0 s; u% X0 o' [
dp.rgdispidNamedArgs = NULL; , t- u- n2 L' Z: I dp.cNamedArgs = 0; : ^7 s- A2 w& t( ]( M* B+ z- D" x d5 g4 j9 @8 `' c* l: t# w
// Call IDispatch::Invoke()6 z2 O; v x0 `: {& Z
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hr = m_pDisp->Invoke(- n7 d4 t8 c) I+ @6 }
pokeID, . `% M6 V& f& \. l6 g: | IID_NULL,( `, e1 q* w5 Q/ l9 x
LOCALE_SYSTEM_DEFAULT,. v# x& @- S: b9 ` J
DISPATCH_METHOD,3 U' j+ T- S: S2 U
&dp,5 L4 j3 G# ?; m$ w% s
NULL,9 U, Y9 J, N2 b0 u2 c- z. Y% K) |
&ei, ' X2 y5 z, Z8 S, N4 X5 T &uiErr); ! \0 `+ G( M W, x1 @; S) ]1 b" [( j' R' F7 ^1 X4 `
SysFreeString(topicStr); 2 x4 }/ J* \" Z5 D, g SysFreeString(itemStr); 9 y' s6 X% ^2 s; y SysFreeString(valueStr); ' Z% N M) L4 M$ l$ a: o9 {# d7 \8 L
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???. U |( b6 [* R3 L" 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???? " j3 A( B' m% Q4 u6 n. d8 |4 H l& J& Q2 v9 Z6 @. ^) l" z D
! s) f1 j! G5 v9 l! H2.这是request的程序; M! t6 T8 p) T% }& X4 ]
// Request a value from Extend # q1 O! V9 `. R7 Y" Q//. Y( \' z( E) O9 f7 S. \2 P% T
// Initialize the variant that will hold the BSTR. Set the variant's ( x5 _9 I0 l* J5 T9 X! Y# ?8 p" v. J// type flag to indicate the fact that this variant holds a BSTR. Place the ; ?$ |( J9 m1 L! O7 Z// BSTR into the variant structure.6 F7 z, p: d+ ?( {4 e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 A# l+ V$ b1 B5 g
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' V. M5 N, x: P5 _ M$ R
VariantInit(&requestVariant[0]); 7 r, c' F+ k2 P requestVariant[0].vt = VT_BSTR;9 A/ j0 \) {& s3 V
requestVariant[0].bstrVal = itemStr; 1 n7 E( R8 C# ^4 S0 \/ e$ O) L, b9 b9 s. L/ p1 Q- p# e" m! T- s
topicStr = SysAllocString((WCHAR *) L"system"); Z; ^% s) f: n# _3 }5 @7 |% C
VariantInit(&requestVariant[1]); 2 P$ z) X, L8 P( s8 O8 b requestVariant[1].vt = VT_BSTR; 3 O p( I/ b% F, P5 F requestVariant[1].bstrVal = topicStr; 4 ^" M7 l0 H K" ^& {" f2 {" l 4 m9 ~- o7 R8 o. }. W2 O// Set the DISPPARAMS structure that holds the variant. $ p D: v/ s2 @- r# o. f! h6 b+ |7 l9 m7 l3 _
dp2.rgvarg = requestVariant;1 O2 I% o, L7 {7 R
dp2.cArgs = 2; 4 H, H8 w+ Z! e5 e; \0 I+ C3 t dp2.rgdispidNamedArgs = NULL;$ Y* D. r d2 }6 c
dp2.cNamedArgs = 0; * W. G0 U8 c% I" T# s7 K; T" c" X
var.vt = VT_EMPTY;. h9 x: e. Z! Z5 V# Z" ]9 q
# `5 i- D! l+ _// Call IDispatch::Invoke()* q- |/ a: f. `5 H }9 p, S* P( A/ W5 \7 ^8 v
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hr = m_pDisp->Invoke(9 _ ^7 x6 n2 \' i+ S0 y! G
requestID, / n! n) g- d ?, z. Q IID_NULL, 3 v& s. v1 a* n! `( r LOCALE_SYSTEM_DEFAULT,! ]/ L% Z4 X; Z- g( _
DISPATCH_METHOD, # q+ m: T, @- [- x( b; X &dp2,1 t( A7 R& S! {( g' R* r
&var, 2 ]; ?6 W) u; M' _+ O: Z &ei, ) X: j6 u# I9 [+ b& g z &uiErr);/ D! d: B6 D4 E2 n
. X7 N2 J1 I- a' t3 z SysFreeString(topicStr); 7 A3 C j V8 U' D SysFreeString(itemStr); * y, ?" k, i B4 K' I* L+ D请问该程序是获得extend里面的哪个值? 1 W; {9 F& K3 y/ A$ T1 R! N' W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????