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: 6 X. `3 U# p. P# j, W, I- {# [, xName = (WCHAR *) L"Poke"; $ @* R |9 L' f/ r1 B* ~. I3 r h9 b m! Z9 r2 ]7 S/ T
hr = m_pDisp->GetIDsOfNames ( 5 l% j, _7 V: V. u( O9 ~ IID_NULL, // reserved, w! b, |# O, f; E, C1 d
&Name, // Array of names to get IDs for- Z- j! c- g# j. }- d: B
1, // # of names in the array $ M9 M; J9 @/ |( i, E LOCALE_SYSTEM_DEFAULT, // System locale $ e/ S! y! U6 C; N &pokeID); // Array of IDs to fill on output4 p5 v+ @; J- D) o( g, u. b
9 p0 y; W O0 E2 i$ D if (hr) " u. a& \0 S( j. C; h! R4 s4 r0 W2 X {+ _5 ?+ p; W# u% k
MessageBox ("Get Poke Unsuccessful");$ K7 i) l0 {4 [+ b0 h( }# w
return; 5 d6 r- z6 K' F4 n: C `% s# g& j }9 g! n. ^0 g5 e/ G7 \% _9 p
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/**************************传递数据给extend**************************************/ ; d) }$ P% U9 r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 x1 U$ T) x' L I! j
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 L2 r) E7 s1 Z9 j VariantInit(&pokeVariant[0]); , n0 z5 M0 A) Q0 j% s pokeVariant[0].vt = VT_BSTR; 7 F$ P+ b0 s0 P& J+ y pokeVariant[0].bstrVal = valueStr;0 P: o5 z7 f7 e0 S
: M# J* ^% H" b" ^9 f( n" s( I3 D0 s// Set the DISPPARAMS structure that holds the variant., i, a+ W$ n* _ n, `2 u# R
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dp.rgvarg = pokeVariant; / L* X4 O# \0 b& {5 N' Z dp.cArgs = 3;$ d7 k2 s- A9 X7 Y2 U: B8 t
dp.rgdispidNamedArgs = NULL; + o3 `1 k9 V- d1 Q) C3 k9 I+ i7 W dp.cNamedArgs = 0;5 P# Q$ j9 u4 ?; b' R4 |' l
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// Call IDispatch::Invoke() 2 O! ]! e5 h |9 I7 p0 a' [# ~) H6 [4 n; Y
hr = m_pDisp->Invoke(' u& f+ M( ~1 K$ U% N
pokeID, 5 v F: l! C, ~# {$ m IID_NULL,# ]. N" c' e M3 ~" D
LOCALE_SYSTEM_DEFAULT,7 _; j) ?' q7 P0 b
DISPATCH_METHOD, ) F: ]) k) b8 [( E9 |1 e& E4 T9 ~ &dp, 4 R* n3 _( M$ r* ]8 j3 x NULL, [/ w* g7 b* z5 O: R: D) a# D* R
&ei, 9 q1 s: O$ N1 j &uiErr);8 d4 K; t1 u5 Q: ?
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SysFreeString(topicStr); . F+ O7 y+ j1 Z# B& r" V! \9 J SysFreeString(itemStr); 5 l' T5 ]2 j& T* f* F+ n SysFreeString(valueStr);% q( Q6 r5 T' Y5 g
% j9 g x% ^1 r1 @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??? 8 {: g) o k/ \! D8 Y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???? ' x7 O% p1 C( D; m& s: @ # Y$ d: P0 M6 T5 n( {. @4 I. A' B; }( u1 D8 H3 N2 a5 U* l
2.这是request的程序 $ _: E' ]$ H: O// Request a value from Extend ; N4 ?# r% x, L* A1 N5 n/ n9 l$ Y//! p2 c' h8 `' o
// Initialize the variant that will hold the BSTR. Set the variant's 2 S; Q) i/ h+ _! \// type flag to indicate the fact that this variant holds a BSTR. Place the . I! d8 v$ K) I9 T// BSTR into the variant structure. 6 [; ~2 a1 ~0 j3 K! a $ u& M" j8 y* X1 V' C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( I! R+ r0 J6 s 4 X! X7 E# N) c% s2 r8 b. T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ]# p. o0 W8 z$ z
VariantInit(&requestVariant[0]); 9 Y1 m' o- z. ~) `0 o
requestVariant[0].vt = VT_BSTR; 5 k3 N' l9 C* ?& x# y. P+ D requestVariant[0].bstrVal = itemStr;4 o+ M. L7 P" k$ y4 q! X0 r! E9 G
/ T0 |8 w. C) R1 a+ E" m( v topicStr = SysAllocString((WCHAR *) L"system");7 P6 t4 h$ B9 n! D
VariantInit(&requestVariant[1]); * l0 t2 h& r7 z& u' G# ~4 z" c7 _: o requestVariant[1].vt = VT_BSTR;/ g6 y5 b5 o j7 t4 Q
requestVariant[1].bstrVal = topicStr; - D2 n: }( D9 q6 Z! ^# N O% ?, I% Z 5 c" d6 K( z) {2 R* m) N// Set the DISPPARAMS structure that holds the variant.$ s( T8 Z/ o2 _: z
8 t4 E I- \2 ] j dp2.rgvarg = requestVariant;3 X3 z8 G% c2 ?2 v% z
dp2.cArgs = 2;0 s' z+ v" F+ K2 u
dp2.rgdispidNamedArgs = NULL;( m4 W# x; H: U/ w# ^
dp2.cNamedArgs = 0;8 V" @# k% L& A% A) b: w- [
& J. }6 s+ e. o( _! P F# u var.vt = VT_EMPTY; & b' F0 }. _& s2 J# o 9 b0 H3 u8 z- h/ O5 D// Call IDispatch::Invoke() % J+ N6 G/ s, n8 D9 I3 x" R& j% J& ~
hr = m_pDisp->Invoke( ; b" `& O. M9 R' _) i: \$ S requestID, 9 f8 a$ W/ H+ z% `8 v, } IID_NULL, 2 r& ~4 t! i* m LOCALE_SYSTEM_DEFAULT, 1 U% f( M# V3 y& a DISPATCH_METHOD, 8 A1 J% u3 O* f &dp2, ; [0 y! N0 [- _$ {6 U &var,* R1 |& `! f7 m; p, J' o# j
&ei, 5 O3 v6 H9 U6 A- q &uiErr);( G: ]8 F' S2 ~0 \' v" E0 m
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SysFreeString(topicStr); 0 i* ?6 w, P5 z0 A5 h( f. h SysFreeString(itemStr);- f4 r6 r, L' F1 K' _% F8 I
请问该程序是获得extend里面的哪个值? ' m1 G- {1 {# i6 N- o% m3 A. C9 X; a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????