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: , L- k$ y. i% R; |* V" GName = (WCHAR *) L"Poke";" o3 \* Z. x. y9 w
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hr = m_pDisp->GetIDsOfNames (4 g/ \! Y& p" f0 F1 d# j
IID_NULL, // reserved3 X1 C3 |) g9 A& Y
&Name, // Array of names to get IDs for- l5 q h4 j0 ~2 A5 R9 o G j& M
1, // # of names in the array6 r8 X/ E' V- V) C. \% ^0 L) T
LOCALE_SYSTEM_DEFAULT, // System locale ( n9 x" e8 R4 _1 b &pokeID); // Array of IDs to fill on output 3 V) R$ q" l6 u6 D . N/ B0 p1 C- f; f4 H/ l& Q if (hr) 8 t( e5 u8 `4 X4 l {6 K+ P# z( \' |9 l4 u. A
MessageBox ("Get Poke Unsuccessful");- D& w5 |" r: w0 _! S
return; % A' c: T3 s4 a; G# E, I }0 l3 i3 [; x, K$ p" T1 ^" E
( p; u3 s6 X2 L) j/**************************传递数据给extend**************************************/ 5 x. ]1 q+ S( p/ C6 V* U7 s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : z' I5 U: \- B/ C' l6 A+ C / Y2 G; Q' _* S( ?
valueStr = SysAllocString((WCHAR *) L"1232");3 I' O# [7 q5 t0 s v/ x3 O" X7 {
VariantInit(&pokeVariant[0]); 7 i" s; U! [" I$ R
pokeVariant[0].vt = VT_BSTR; C) n$ z! [/ j/ t: N g( G
pokeVariant[0].bstrVal = valueStr; % V/ N Y( _# z, n4 e1 l1 n% s) b' a( ]9 l5 q9 ~; l4 W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + Y! `0 s5 ^2 o; P( P0 O2 z VariantInit(&pokeVariant[1]); $ C# ]8 B, N2 C9 n6 z) k pokeVariant[1].vt = VT_BSTR;% Y+ i& n6 g1 g8 s8 y7 a5 W
pokeVariant[1].bstrVal = itemStr; & N& J9 T! S2 p1 C! R. E ) |, |( ~& I3 k! f topicStr = SysAllocString((WCHAR *) L"system"); ) h( b" i- F6 u+ }0 e VariantInit(&pokeVariant[2]); 6 Z; ^* j& T- {1 c0 D
pokeVariant[2].vt = VT_BSTR; $ z+ q1 S$ e# {* ? pokeVariant[2].bstrVal = topicStr;& L {7 a# n$ ?; c' u* W9 {
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// Set the DISPPARAMS structure that holds the variant. ! y' h- f% h; W" U r# K & Z3 z1 R8 E. v# M2 t8 N; f. J dp.rgvarg = pokeVariant; ^% B, f1 N1 Y, i$ b7 E4 w! v, ^ dp.cArgs = 3; ) W5 y( m: q) F) | R# T dp.rgdispidNamedArgs = NULL; 0 g: o/ X- k5 v2 g dp.cNamedArgs = 0;1 @' y/ l, `3 W8 \6 H& r& [
- p$ s$ u) i; ~; T' `. _3 G8 Z' I// Call IDispatch::Invoke() 3 n. b, @, l- [4 H/ s0 g% ?- F0 w2 B1 G' E
hr = m_pDisp->Invoke(- Z. R' t) U* E* d' j# h/ ~
pokeID,1 |9 L+ m9 G' m8 @) q5 d5 O. f" e
IID_NULL,4 `4 [% T( }. U0 V
LOCALE_SYSTEM_DEFAULT,8 i- N/ w H9 N9 d4 I* I8 ~
DISPATCH_METHOD,; v+ U6 T' I* p, N1 q6 s
&dp, . `) {0 p0 L R( I& T NULL, 1 p" u) H2 [! H* D8 i &ei, ) j: I$ `+ G+ R% ?2 |- u &uiErr); , r+ ]; u K$ u- B9 e8 \7 m ( b+ A0 a" A: s3 K0 @ SysFreeString(topicStr); 1 _" h5 z9 n4 K8 V2 u0 P SysFreeString(itemStr); ! Y! U) B% [& O- o$ k SysFreeString(valueStr); + \+ W: C" q& U- t8 Z & D7 }: N3 S+ A- x$ q1 F/ [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???% w" h& B6 b- b' H8 k' T) }% v# f
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???? ' Z- ]9 D: y4 s$ ?; c! @7 z/ I 2 ?* s2 C, k; m! d8 f. h4 c0 {: [4 G6 Z; R' w1 h" O8 t
2.这是request的程序 8 I/ g/ O, g- S) J, L5 M% q9 M// Request a value from Extend ) I8 b5 [$ F0 t* K; C3 O//* b3 J9 f" f7 h0 K+ K7 A( q& o
// Initialize the variant that will hold the BSTR. Set the variant's ! e W3 q1 U- _, }3 d# m// type flag to indicate the fact that this variant holds a BSTR. Place the ; G) \, F [. \' ]! t* ~$ m1 E: h4 R, U// BSTR into the variant structure.; U9 q. I( }; d( Q+ k% L8 G( S/ e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ I8 W. k( }& e' ~ E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ D t, O5 |- {
VariantInit(&requestVariant[0]); 3 o# N& }& \! J" j- v7 S6 u requestVariant[0].vt = VT_BSTR; 3 E4 i9 ^* b; ]) f7 j requestVariant[0].bstrVal = itemStr;) Y8 \6 z) I9 A6 Y' Z5 I
3 h( w) H# k s2 K topicStr = SysAllocString((WCHAR *) L"system");; l' A. e2 S: ~, v# A
VariantInit(&requestVariant[1]); + {* [) z) \. J% d1 @( `; P% R+ s- J# q, z requestVariant[1].vt = VT_BSTR; 4 X) Q3 i' A% `! j requestVariant[1].bstrVal = topicStr;* D# J) G9 v0 W. R: p( g |( J
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// Set the DISPPARAMS structure that holds the variant. + V3 q8 a5 S1 `' A V1 q& z: D q& k$ H
dp2.rgvarg = requestVariant; 4 S `) d/ u8 N% S dp2.cArgs = 2;$ y: X3 J) v# b% ?
dp2.rgdispidNamedArgs = NULL;0 y. B' v C7 Q
dp2.cNamedArgs = 0;0 [2 x6 L: P0 m- P" P