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:. @, U N: ]7 E# P* H9 _: E" _. B
Name = (WCHAR *) L"Poke";9 j5 s7 C2 Q: I! b3 B
3 v% a6 B& `' o* @7 X hr = m_pDisp->GetIDsOfNames ( . q5 r/ m9 a& [) ^/ a. K( C @ IID_NULL, // reserved3 s, v. M, a) e, Y8 [# U8 H! D
&Name, // Array of names to get IDs for ' F6 z" ]- s9 J* t$ `" z, k 1, // # of names in the array 5 \6 B7 I k; b/ [" l; w LOCALE_SYSTEM_DEFAULT, // System locale9 r1 K5 n3 ]* ?
&pokeID); // Array of IDs to fill on output5 A2 F7 F, l& \) k
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if (hr)6 j o7 {, h- @6 U8 e4 ^. z
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MessageBox ("Get Poke Unsuccessful");% N6 u& e/ E4 V; k$ G3 m
return; 3 j0 n( Z3 Z6 D2 `: v }. n. V: i' b# _8 m' Y
7 b; [, Q9 S* |' E3 `! d; W/**************************传递数据给extend**************************************// | k+ T8 U1 N' V* c0 r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # k8 [! |5 m0 g) ]) q 7 q, \$ d* k' h* F
valueStr = SysAllocString((WCHAR *) L"1232");- {& R# [. _0 Y3 U6 O1 F7 n8 P
VariantInit(&pokeVariant[0]); " P% s% P$ ]& f( d
pokeVariant[0].vt = VT_BSTR;. R0 n( d8 y6 p3 g( P; W. u
pokeVariant[0].bstrVal = valueStr; + r4 N$ J5 z3 g1 I2 S# q5 _2 C) ?8 h4 H! i6 b8 s, y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 v$ x: f* m: M) L* S VariantInit(&pokeVariant[1]); ; g* u8 ^: `9 l4 L3 D
pokeVariant[1].vt = VT_BSTR; / I2 O' \: H* t$ X' T pokeVariant[1].bstrVal = itemStr; 0 H. D( L2 a- h# g3 n3 x, N6 h 5 y* D; u T3 R" k$ ^1 X, k topicStr = SysAllocString((WCHAR *) L"system"); 8 R# M6 p; u1 l! g$ y5 A$ p0 J$ B7 [' f VariantInit(&pokeVariant[2]); 2 S* s) f/ n8 L) A2 h h0 r- ]
pokeVariant[2].vt = VT_BSTR;2 `1 }, c4 K, L0 C/ R
pokeVariant[2].bstrVal = topicStr;! U4 e4 C2 C4 p1 p# G; ]
4 W- b. [+ P& f' R; a. P9 `) t/ a// Set the DISPPARAMS structure that holds the variant.' I/ y. k! Q% T3 j
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dp.rgvarg = pokeVariant;: c4 ~, N( U% _- r5 M
dp.cArgs = 3;( g" k1 o! x% L- b9 k5 g
dp.rgdispidNamedArgs = NULL; + j& O2 U( S( H7 n! i- P dp.cNamedArgs = 0;' H y! i; `8 L4 Z1 f
: U9 e5 B; }0 e k ]$ X9 W1 ]// Call IDispatch::Invoke() - R* O6 U( V2 |$ X% ~+ }* i; `) B8 R! n+ U3 x0 M* k
hr = m_pDisp->Invoke( 8 g. p" n! g% Y' f% A pokeID,+ M! Y' P% h n. a. I( V
IID_NULL,8 J u0 h* c# q- ]( b0 s
LOCALE_SYSTEM_DEFAULT,6 \0 I- Z2 P/ e' B9 u4 x. i* x
DISPATCH_METHOD,+ J) H! l7 r/ ~# x( o
&dp, 5 p- N* u1 z2 h4 Q NULL,. M4 a: n, f0 S! }
&ei, ( ?+ X7 v2 h; n% ~- ` &uiErr);# ~% Z! ^8 l5 g9 C
; a2 \7 t$ \3 b' u, M6 K% v4 { SysFreeString(topicStr); I* J; q. y8 f) a& w8 _+ A6 H
SysFreeString(itemStr); 2 Y( G K, Z3 f1 ~( G4 v. L SysFreeString(valueStr);/ K' k R" Q5 D# J( d5 M
/ v$ }; w9 |* K! ]6 |+ {! v4 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???& `0 p2 }9 i' {- t N. U: a
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????+ r% n% s! o* I1 @; w
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2.这是request的程序 6 `) f, x+ k% m" e; L, `5 I// Request a value from Extend 1 c$ j8 f# F/ L2 K) D* _3 l" q//. r/ {8 A$ p7 x4 T
// Initialize the variant that will hold the BSTR. Set the variant's ( p+ [3 T) G) B9 Q9 B! y// type flag to indicate the fact that this variant holds a BSTR. Place the* V* Z2 _- }7 R6 m
// BSTR into the variant structure.- w9 f- Q9 D/ h5 _
2 x u% `# v+ x& m requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ b( z% `* L3 f& T7 k% r) i4 j' L+ A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) x( }( B# {/ J# } VariantInit(&requestVariant[0]); 8 \4 ^, D) U) m
requestVariant[0].vt = VT_BSTR;0 w" H2 ]* T0 C7 L+ D. ]7 B- d; A8 L
requestVariant[0].bstrVal = itemStr; 1 [1 D* r) h0 {+ I( g2 B. W% Z2 c" ~% E$ L: m# r7 v
topicStr = SysAllocString((WCHAR *) L"system"); 7 N F4 ]! U5 u, M7 N% z VariantInit(&requestVariant[1]); ; A! `6 r2 Y- }# ]+ u
requestVariant[1].vt = VT_BSTR;9 d1 K8 @$ X; K# t4 Z$ s, l
requestVariant[1].bstrVal = topicStr;$ _7 N6 a6 P" J8 v2 R; m
% b$ t. M+ f, r// Set the DISPPARAMS structure that holds the variant.' M. g" J8 D" ~( W( _# ]
# G0 }$ |! | {: {/ T; R
dp2.rgvarg = requestVariant;: v$ p5 e& r; ~1 t8 [
dp2.cArgs = 2; $ N2 d' {: z* I dp2.rgdispidNamedArgs = NULL;+ Z2 C2 j' k( D) y5 x9 W; u
dp2.cNamedArgs = 0; , P4 i& Y8 R! N2 t* m % |* f7 u/ k2 f- J4 K- D2 n/ k var.vt = VT_EMPTY; # p( h, Y4 o, R3 p6 f% U3 u* K; c* U: q R* S4 [
// Call IDispatch::Invoke()2 D) T5 \( T/ U7 F9 B
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hr = m_pDisp->Invoke(3 |' s7 z: ~0 m+ W0 m
requestID, 6 f2 w# e$ b' ?! K) j+ w$ a IID_NULL, ; V$ O8 y, K' n2 k LOCALE_SYSTEM_DEFAULT,* W% [7 X% \9 f1 G
DISPATCH_METHOD, 3 [8 J& Z6 @1 F- L &dp2,. T% C, [3 c* ^8 [3 Q2 U! H
&var, 2 O2 j. y& ^# H &ei,2 M9 |% u2 ]0 e0 \
&uiErr);; r3 H- f9 U0 a