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:& G# _+ |9 s& o: J/ ]4 {9 X f
Name = (WCHAR *) L"Poke";* l1 \) a6 \9 E( P/ J- T
! G0 O& o/ a3 \8 _8 }7 F/ j hr = m_pDisp->GetIDsOfNames ( L' Z1 M) h3 i; ?* }7 \; Y
IID_NULL, // reserved- D0 r* O- K5 K
&Name, // Array of names to get IDs for! p+ z( g0 O! m% a
1, // # of names in the array # @% \ n3 l/ Y. m, G! O9 T LOCALE_SYSTEM_DEFAULT, // System locale 4 V6 f) ~2 U% j9 C4 k9 t* Q5 z! W &pokeID); // Array of IDs to fill on output6 ?: N# S @- a& h4 Q6 P
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if (hr)3 z! Y2 @3 F. o& a& e) V# A0 H6 A
{ ) f( D" I8 v: l5 p/ {' C. E1 | MessageBox ("Get Poke Unsuccessful"); d& F9 `+ @2 ]* M/ J2 M+ q, p
return;3 h* _3 M1 f4 J/ c$ _
} # J$ c4 h' s9 {" r# u5 ]- a % p$ l3 a/ O4 [) _, U+ ?. @/**************************传递数据给extend**************************************/ - m( o' z! e: c$ m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 Q4 k2 x$ Q# ~9 i- W ; E& I& i) {4 C: F0 ` valueStr = SysAllocString((WCHAR *) L"1232");0 y, y9 J2 k4 U* i
VariantInit(&pokeVariant[0]); 2 s/ n4 ?" I" z4 y _) \ pokeVariant[0].vt = VT_BSTR;3 d7 `3 P3 r) S9 `4 n
pokeVariant[0].bstrVal = valueStr;# i0 O4 ]0 l w6 `6 N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / { h% s% {, f/ t, y+ n- u$ A- K' Z VariantInit(&pokeVariant[1]); , u4 p5 _# ]2 h, s, { pokeVariant[1].vt = VT_BSTR; . P: g! B8 I( p- A pokeVariant[1].bstrVal = itemStr; 8 ~9 k! o- e7 a8 u 4 G1 O# ^' {5 S2 z6 V topicStr = SysAllocString((WCHAR *) L"system"); $ b+ j- e4 q. Z s VariantInit(&pokeVariant[2]); 0 W( H8 t' ^1 m8 B! _0 o7 o! J
pokeVariant[2].vt = VT_BSTR; - t& T, @% R( @& |5 z pokeVariant[2].bstrVal = topicStr;: T6 W' E" ?- x$ j# E
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// Set the DISPPARAMS structure that holds the variant.5 t: \8 P1 C( Y
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dp.rgvarg = pokeVariant; 6 Z$ h6 Q# O1 H6 U dp.cArgs = 3;+ D5 |! ~8 U, F4 Y7 ?
dp.rgdispidNamedArgs = NULL;( {. V; H! H( b
dp.cNamedArgs = 0;/ x! i4 [- d. `) R
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// Call IDispatch::Invoke() . ]+ Q: ?5 i$ x Q8 K4 [0 L 2 R8 l9 F' K$ |" w, T3 O( a( ` hr = m_pDisp->Invoke(- c& i" C8 _7 Z' [4 A/ z: C& e+ B3 a
pokeID, % U" u5 T& Q/ G5 D9 U9 K IID_NULL,: Q e8 W$ b8 f
LOCALE_SYSTEM_DEFAULT,6 q( x( Z5 u, W" C3 M# j* Q
DISPATCH_METHOD,( I- t( v( T2 a4 z4 X
&dp, : l# l, [" L9 O& W NULL,* c* |) j+ S$ U& ^0 o
&ei, - c7 @5 y" c7 W0 Z- C+ j! L &uiErr); - b! H& a; _, s H2 ]' H0 r9 X' T1 z4 L' d
SysFreeString(topicStr); 1 I( E5 R' j& [* T3 |+ C6 u# w SysFreeString(itemStr); + c4 v& N) F0 S1 u- P) \: _* ]% d SysFreeString(valueStr);3 K8 D% M, R) x( H+ G! E' V& a
7 E" D" R* _4 S, W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???. t% y; y5 m6 i8 a" b# C
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???? 8 s {5 `. P$ `# T7 T- J( e7 W' e/ L: T7 L! ~# D) p- x
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2.这是request的程序# I. C" P8 w* J2 } d6 x2 w! l
// Request a value from Extend ) X( y4 ]; [! O$ ?; }, T7 l//" o; k9 S$ g0 e4 f- t2 d+ [
// Initialize the variant that will hold the BSTR. Set the variant's& f$ O2 h" ?$ v" v
// type flag to indicate the fact that this variant holds a BSTR. Place the- l, J( W. c7 H. I0 ^1 j& i1 b
// BSTR into the variant structure. ' D; I' d D9 |, H7 s/ @/ v2 n2 S3 H* J; Z- ^$ O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) J% L2 w2 s8 l4 l; y - \ p6 V i+ O' D* Q3 w/ J9 `) }( O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 ]: I8 D( n' A$ Z. ? VariantInit(&requestVariant[0]); ( o' N( R6 |* H
requestVariant[0].vt = VT_BSTR;- ^5 d! d- U2 |7 {) s. y, S4 C
requestVariant[0].bstrVal = itemStr;- D7 g. P+ B8 Y
) U9 L$ F* Q- {. s5 M( i topicStr = SysAllocString((WCHAR *) L"system");( \6 ?2 k5 q' |! s7 C
VariantInit(&requestVariant[1]); / m/ g) W/ i0 t: Q
requestVariant[1].vt = VT_BSTR; ) q5 ^& ]8 Z# f o. {1 ?' s requestVariant[1].bstrVal = topicStr;. Q, }- a7 f) }1 S9 o3 q$ V) W
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// Set the DISPPARAMS structure that holds the variant.$ N4 m7 O* k& R) W% k