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: ) R4 B/ E/ I* X8 L8 J" }; dName = (WCHAR *) L"Poke";: h8 m6 R" ?, x8 E8 v; X9 {' z
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hr = m_pDisp->GetIDsOfNames ( * |( }) p: I- `3 K. W6 U IID_NULL, // reserved ) X1 S) P$ |! v$ I# y2 ^ &Name, // Array of names to get IDs for 1 i0 [; P0 [2 d7 e) t+ i, [ 1, // # of names in the array ; D; g+ C g5 M" ?& z- q LOCALE_SYSTEM_DEFAULT, // System locale+ c# ~. O6 X/ h# Y! ?! h5 ~+ z
&pokeID); // Array of IDs to fill on output 4 Z; C, C* k" g- N2 ~: {& e% |5 D4 e) ] . [1 Z# H7 Y6 a& x- ]2 v if (hr) % e8 D$ o6 y2 N$ ^+ D { ) N2 U L. T: u+ x MessageBox ("Get Poke Unsuccessful"); - o8 f7 c; ]' R" @ return; 9 y1 }# K5 m* ~+ q3 _ } % ^! [; l1 z( @9 E9 J/ Q' j8 h4 X! E4 G' {) H
/**************************传递数据给extend**************************************/7 x! e6 Z) K- [: g* a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 f. ` A/ y2 o7 Z+ Q% o 2 F* v7 V9 D# L( B% R valueStr = SysAllocString((WCHAR *) L"1232");6 R! h! v* [7 `2 l! A
VariantInit(&pokeVariant[0]); + y5 B9 @! e. m0 ^7 `
pokeVariant[0].vt = VT_BSTR;) g; ~7 x5 R, l* j1 \4 k% w2 q1 F
pokeVariant[0].bstrVal = valueStr;/ o0 d. O% K! y8 |0 M8 Z" V3 c- m. R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 b/ [6 }9 D: `- I" D2 A9 s/ V VariantInit(&pokeVariant[1]); 4 f& G5 v) x$ e/ C
pokeVariant[1].vt = VT_BSTR; # f& t! P2 w. k+ K pokeVariant[1].bstrVal = itemStr; 0 J! G/ r9 z; D; q4 o 1 G j4 |4 N" S# S: K' z topicStr = SysAllocString((WCHAR *) L"system");4 s# p7 o( Y& }+ ^$ F
VariantInit(&pokeVariant[2]); 2 O4 J; y# D- c( M% d8 Z$ D pokeVariant[2].vt = VT_BSTR;) z9 l/ x$ s" _- U/ [' B
pokeVariant[2].bstrVal = topicStr; 2 w X2 u& Q( t' K; H # o& E! Q/ B4 M! ~// Set the DISPPARAMS structure that holds the variant.0 p1 M( H, a h7 r
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dp.rgvarg = pokeVariant; " w" M- }' S- [' i2 Q, h- q- _) [4 r dp.cArgs = 3;/ C* x7 ~* N" t6 r% y4 o
dp.rgdispidNamedArgs = NULL; @1 L# i! T Y) x- t Z
dp.cNamedArgs = 0;: |& n7 M) n3 [, K
5 `* g, h( I& g7 @, n. _4 j// Call IDispatch::Invoke() 5 j- |1 x' E# n4 b9 t; u' \( `3 ^5 o+ H) p( b" k
hr = m_pDisp->Invoke(' @8 ~0 r* }6 U, X
pokeID, * Q8 V( m" i. I IID_NULL,+ t' i' {7 [1 ~" E3 _! L( ] K
LOCALE_SYSTEM_DEFAULT, / x' _: i) j1 r. Z1 b DISPATCH_METHOD, 7 H' X- C' V& r# F" @- D &dp,3 p, ^) D3 I5 F( `* c3 R5 G
NULL,# q9 B' r; h8 M' t4 q
&ei,9 ]& T) h* T6 T8 L6 ?
&uiErr);! I3 F) z p2 l" R; z. N
7 h& J! I3 O2 t1 }* w SysFreeString(topicStr);4 a# B- l! r6 \0 N6 i
SysFreeString(itemStr); 4 U% h) h# L/ }$ z' L6 m/ w8 I SysFreeString(valueStr);* m9 N. s( E0 \, v( }) Q( \- g
% Y% w7 ?6 V5 `' r! Z% J t现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 1 G, B7 K( o7 q l0 q) i此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? " k+ {: a: l: p W + P8 i/ z( C: _. ^4 |) c 2 t' m* y/ S: w! e2.这是request的程序7 i% C0 B" s; E9 Q
// Request a value from Extend ' u) K) n; a6 f$ w//; p; p' Z6 b* e7 r! U n& ?
// Initialize the variant that will hold the BSTR. Set the variant's( [, c }; `. W8 G( E4 `4 R
// type flag to indicate the fact that this variant holds a BSTR. Place the1 P7 F* x W) s0 u3 f4 M; ^
// BSTR into the variant structure. 9 c' \, \. l+ n& [3 _ ) p* O0 {) q$ }$ u# Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 l! ^0 S: w' m' R; b
( l' U, K' o' } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 H5 Y+ H E4 ~' D5 B
VariantInit(&requestVariant[0]); % Z( A: \, t$ S4 H* f& ?
requestVariant[0].vt = VT_BSTR; $ g& ^& R" O; R5 d requestVariant[0].bstrVal = itemStr; 3 C2 A$ v7 ^& I. S$ g: c0 [# {2 m* S/ l8 V+ ]0 ]+ s8 [
topicStr = SysAllocString((WCHAR *) L"system");4 S6 e, c& @5 \7 b* I
VariantInit(&requestVariant[1]); 0 b- H5 o8 z; l( t1 E3 o2 E# G. F
requestVariant[1].vt = VT_BSTR;/ E) k* A7 _& _3 \) s; i4 ^
requestVariant[1].bstrVal = topicStr;) F0 E% ?& Z& q
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// Set the DISPPARAMS structure that holds the variant. 7 H0 o# z8 f! w+ U+ l+ v, F : B+ |9 Y% }" d* N6 z( i; f7 a dp2.rgvarg = requestVariant; ; Y" U4 Y9 s# d7 [, t" y! m, k2 Q dp2.cArgs = 2; # `7 [ t# A7 x dp2.rgdispidNamedArgs = NULL;3 Y2 `& g% L) V; y2 g' v
dp2.cNamedArgs = 0; % d" E) u9 |) A+ V/ O2 X, j9 D" d9 x$ M1 T% W
var.vt = VT_EMPTY; 5 N8 k) {* l+ x' B( `/ }( K- n- |4 Q0 u) ]; r: T8 n$ _, T
// Call IDispatch::Invoke() 1 k7 i; D4 `9 E" \, f5 Q% |2 b" _ : y' H0 x% J! g$ S/ A! \+ ~0 m# J hr = m_pDisp->Invoke( " o% t# x( z- \7 ` requestID, 0 e8 M$ n# Y9 I IID_NULL, ; D# p; Q" e3 Z" L+ s9 ~# W LOCALE_SYSTEM_DEFAULT,. a J4 }7 z& K, S" _6 h
DISPATCH_METHOD, 9 ]! w+ X7 s8 I+ L &dp2,$ |1 y& H# @( |8 r. h/ _" u' ~5 r: q
&var, + ?8 d: D0 G/ N &ei,* d. s" s8 S. D: O' W) W" H
&uiErr); / W2 w+ m7 G; ~$ B5 }2 }2 a : A" j) S$ ~/ d( a+ e3 X SysFreeString(topicStr); ; W) o# M; U* K7 G$ T& m8 F* x SysFreeString(itemStr);( p/ |9 m1 E% l8 ]# y
请问该程序是获得extend里面的哪个值?. i+ f+ c! G' P/ S1 R n8 C2 u3 o/ x
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????