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:; q: k, ?+ l( v1 G4 B+ O. {. h
Name = (WCHAR *) L"Poke";8 Z! G3 ^6 H* {- c1 h0 e
3 m. L* {9 i$ m& N% z hr = m_pDisp->GetIDsOfNames ( + N9 s8 c# n, O: ]6 b IID_NULL, // reserved5 V7 H/ b0 Y; p2 x4 R, m5 b
&Name, // Array of names to get IDs for ; K$ v- ?! e! @1 K 1, // # of names in the array 7 @3 T1 ~: I& ?8 j LOCALE_SYSTEM_DEFAULT, // System locale * K2 Z$ r% C5 P &pokeID); // Array of IDs to fill on output( h, B9 G! c$ Z/ h$ I# x, O: y
1 ^/ M1 g8 v5 ]- L$ `7 Z if (hr) ' H5 X1 v4 J" K0 a8 q { 0 [7 ] e, r) x) l# L/ O7 C MessageBox ("Get Poke Unsuccessful");$ f( K% }: u3 q: D
return; / q7 S9 Q; G! P( _% Y H4 I# g8 d }: s+ O3 X7 d/ q! a5 ~% }
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/**************************传递数据给extend**************************************/ ' U5 b6 m6 n: R1 ~( `0 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 v' s, ]. V2 o2 Y# v! j - ?7 r. K* X* H7 r k6 a: p0 d valueStr = SysAllocString((WCHAR *) L"1232"); * n# q# v& t1 k( V VariantInit(&pokeVariant[0]); 9 K3 H' V! w' n r! `) K# Z# S" U
pokeVariant[0].vt = VT_BSTR; 5 r, N' R9 m1 Z& Q1 D) A pokeVariant[0].bstrVal = valueStr; ( R) o- P8 h+ ] 6 R3 Y/ {. W: e& V& @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 U7 v2 \+ G) D$ g
VariantInit(&pokeVariant[1]); # q+ ~; {* ^* t5 G/ I pokeVariant[1].vt = VT_BSTR; ; N/ q; R- x8 a pokeVariant[1].bstrVal = itemStr;" T2 u, ^% |5 }+ L0 I
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topicStr = SysAllocString((WCHAR *) L"system");, y/ p3 b' V! M
VariantInit(&pokeVariant[2]); 4 @) A: Z1 D6 {0 o k pokeVariant[2].vt = VT_BSTR; m2 R# m( Z1 g1 Y |- ] pokeVariant[2].bstrVal = topicStr; ) L6 l6 @' S& ~' [$ a% A8 a% g8 ^6 Z$ ^; B. Y4 E
// Set the DISPPARAMS structure that holds the variant.. w1 v7 e2 B3 r. Z/ K# G' l* F
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dp.rgvarg = pokeVariant; ! ^- ~9 P8 h2 h8 h! ^3 ] dp.cArgs = 3;6 ]% T% m7 x( _. `
dp.rgdispidNamedArgs = NULL; 1 ~ ^0 f' v! K5 P& T3 B' X dp.cNamedArgs = 0; 2 _! \; j1 v1 H/ `* w) |! {3 K" R/ L
// Call IDispatch::Invoke()) ^- c/ ^1 U' h% B$ M
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hr = m_pDisp->Invoke( : b9 k- h/ v' A0 r' v3 x pokeID,& M% Q5 A9 s. ~. h. C
IID_NULL, , X2 h2 J/ U% ~9 V5 O LOCALE_SYSTEM_DEFAULT, * H" @" l Z/ W, r8 B1 W5 {+ ~3 T DISPATCH_METHOD, 0 _3 X; e0 I* P: x: U$ Y &dp,- D A. D1 K4 \
NULL, 4 }4 D' b2 G- A; p6 P3 [ &ei,8 t' d4 T h' U$ M
&uiErr); 9 L2 P) w" a) d 0 B% a ?# Z$ c$ t5 N* e SysFreeString(topicStr);# a4 a8 |: W7 F- ` Y; ^
SysFreeString(itemStr);. z9 x& |# T. T$ G
SysFreeString(valueStr); $ }; |- c0 U' f* [- g4 o$ e1 \ " R2 d, c; N! @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???' S1 r/ C+ d- V4 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????7 z0 N+ E5 h: h6 R' i5 W
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2.这是request的程序; v# \4 Y" z) x; m
// Request a value from Extend9 z4 w& a: R3 H- ?2 N7 |4 a
//8 A8 t0 Z$ k6 }( O2 O
// Initialize the variant that will hold the BSTR. Set the variant's ! o# \ P( O. g; H' _% l3 o/ D* L// type flag to indicate the fact that this variant holds a BSTR. Place the( d" Z& g. ^. \- {; y" D0 \2 d
// BSTR into the variant structure.' X6 n" x* y: ?
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 f* @! }8 E* L1 M$ g0 {$ a : n% f' v) h, d: n9 u' i3 U# E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* z" C; U* I5 m# Z& j; F; l
VariantInit(&requestVariant[0]); 6 r% v1 L9 h' S) ^; r& w# _ requestVariant[0].vt = VT_BSTR;- \8 p+ ]2 _/ M: a K6 \' w
requestVariant[0].bstrVal = itemStr; [, f; x" d. H9 M
5 M f$ Y, ` Z* v0 ] topicStr = SysAllocString((WCHAR *) L"system");4 v( a! A- C, K! f+ T( ~7 P
VariantInit(&requestVariant[1]); 8 s; c& l' q1 y3 x7 F
requestVariant[1].vt = VT_BSTR; 7 w4 y5 t' W6 p requestVariant[1].bstrVal = topicStr;# J: [, ]0 J1 @) i( V
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// Set the DISPPARAMS structure that holds the variant.- O: s& D8 X5 }9 `; ]3 ]5 e2 o
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dp2.rgvarg = requestVariant;4 ?, f3 g7 k. j, i, K0 Y- ^. a
dp2.cArgs = 2;, H: F6 {/ L# N! x3 s$ v% C* I
dp2.rgdispidNamedArgs = NULL;" L, B3 v5 r! c. Z% p# W3 V5 T) _
dp2.cNamedArgs = 0;7 Z% J% q: @# {& i+ C- B& R
- {- f% s3 X- r7 s' X; _9 q var.vt = VT_EMPTY; % w3 K. h' T0 [4 W8 W* e% V& k9 | 7 b7 Z1 s! {* y- y9 e3 m// Call IDispatch::Invoke() & C5 X( _2 T% r" d4 c . ]- R& M `2 v2 ` hr = m_pDisp->Invoke(8 w! U- j) g" O1 Q) h% I4 }* ^4 |
requestID, u- E& x& {( } G8 X IID_NULL,6 P# |4 y! e- Z# d
LOCALE_SYSTEM_DEFAULT, l7 {0 C) E% Z2 R# M2 W# o9 f
DISPATCH_METHOD, 0 ~! {2 J; w8 B" S5 r &dp2, 5 Y" z/ K3 i/ X6 R' D/ u9 E2 d &var, " I9 z8 A+ B' s+ t &ei, 8 v2 h0 s& D# R$ M &uiErr);! u0 Q$ x; h% e G' Z
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SysFreeString(topicStr); - e% V* |; U6 ` SysFreeString(itemStr); # B C3 u' m' J3 G- a9 ^7 }* L请问该程序是获得extend里面的哪个值? ) l: B- k# J0 D0 C x! a3 q7 B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????