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: : }$ d" I+ _3 t& ]. A- W7 K- gName = (WCHAR *) L"Poke"; 5 B( Q; j; E- |2 C- t% E5 v7 I ; Y9 ~2 ?* {1 ^4 N7 b! z hr = m_pDisp->GetIDsOfNames (0 W. s' J7 i6 h) i* A$ f" n2 G
IID_NULL, // reserved, B# t# J5 C+ y4 B8 z/ N; l
&Name, // Array of names to get IDs for , ?7 l5 V* N( ~3 _1 n 1, // # of names in the array" s) f' f1 s) h0 i }: a
LOCALE_SYSTEM_DEFAULT, // System locale $ z, ]5 z4 |& c# Q7 b &pokeID); // Array of IDs to fill on output 2 F* V. [# k0 J& Y+ Q# ? % B r* Y! w$ Z, _ if (hr) * f/ l/ @, E! B0 I& o+ y {; j! X3 c: a; I1 }$ r8 t
MessageBox ("Get Poke Unsuccessful"); 9 X4 u! d, r0 U" t" n return; * X0 B3 C8 }4 ^( t) H( C% W } $ X5 {2 p1 P0 j2 I/ k( s3 R ( k; Q' I9 {- s/**************************传递数据给extend**************************************/ ! k, [$ ]% _" z2 E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 O" q6 x# b8 m3 [' O # L7 r( d9 t0 ^- L: b valueStr = SysAllocString((WCHAR *) L"1232"); ! f' Y9 E, }! p VariantInit(&pokeVariant[0]); 1 B" G( `% p% z, X5 h; \! C
pokeVariant[0].vt = VT_BSTR;: G/ [/ d9 b' [1 R( e! a
pokeVariant[0].bstrVal = valueStr; * l& A2 i3 I: a, B: h' Q9 n: E0 `4 E. G/ M, ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) g# C: [2 r1 m$ N
VariantInit(&pokeVariant[1]); # U' M m& @ _ pokeVariant[1].vt = VT_BSTR; 0 v: s* p( ~9 \- H5 j' U pokeVariant[1].bstrVal = itemStr;8 I' c) @- ?" A7 c9 i+ z
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topicStr = SysAllocString((WCHAR *) L"system"); % N2 l& O6 H. B. k: ?9 c) R# L0 w VariantInit(&pokeVariant[2]); / R- l @4 [' m* T2 o! L" y, {
pokeVariant[2].vt = VT_BSTR; $ j" u! |4 E; } pokeVariant[2].bstrVal = topicStr; 0 ? h0 V% ~3 W4 E" Q7 l Q! c5 y+ E4 t$ }0 U
// Set the DISPPARAMS structure that holds the variant. 9 ]: }2 \! S( I, |$ C% ~. Y6 z) M; C0 n
dp.rgvarg = pokeVariant; 5 G# Y$ j# C( Z$ N+ S& h dp.cArgs = 3; 6 n# x/ r5 c# l8 o" O O+ H dp.rgdispidNamedArgs = NULL;5 w# X, U% T3 \& p& f
dp.cNamedArgs = 0;- f) p! y1 U7 c) A" I3 G2 G
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// Call IDispatch::Invoke() 2 \1 j( W# F9 f" W . M* k6 m; w; ?/ G6 ^ hr = m_pDisp->Invoke(, n: m/ W( h- }" \% A. _
pokeID, ' J4 x* x+ J) M IID_NULL, 0 c; S2 @5 r1 T3 T# d/ T* e LOCALE_SYSTEM_DEFAULT,7 u( w. b: \5 a/ I/ U7 a) s3 a
DISPATCH_METHOD,1 `! z1 M( x( r0 |
&dp,7 J+ a* [4 ^( U
NULL,( H/ h9 Q& T$ K' ^) N- V8 v
&ei, 4 I+ H6 o3 q* r* P& M &uiErr);( P" B1 X. g3 a0 s
; q9 p& k5 Q- U( \8 x1 E SysFreeString(topicStr);" {; c1 `, C5 G7 z: ?( d+ {4 D
SysFreeString(itemStr); 4 _" [0 p3 v2 u, x4 b' n SysFreeString(valueStr); - l- {) ?9 l; d! l7 H. [6 Z. W3 u' E0 L
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???' x0 t' J1 L3 L6 s( V; Z+ 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????& P* j2 `3 o, X
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2.这是request的程序 : o) A' d/ r' g" E( @2 _2 a// Request a value from Extend7 H8 x: J+ c6 |1 z2 d2 c) C
//& d5 W2 D* f& T( N
// Initialize the variant that will hold the BSTR. Set the variant's' U& e1 r0 I3 Y
// type flag to indicate the fact that this variant holds a BSTR. Place the: X- U- x; |; K
// BSTR into the variant structure.6 ]& T! S7 M1 F" G
4 S7 g+ G# F) w! J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 u: B& L2 s- u8 B
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 H, Z2 `: O/ b, }0 l; Q
VariantInit(&requestVariant[0]); , y- ~* j" ^1 l) y, u, r
requestVariant[0].vt = VT_BSTR;$ p3 F2 B: }1 P* ]7 d$ I7 y
requestVariant[0].bstrVal = itemStr;' }3 F7 f- o' {; b, u4 W
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topicStr = SysAllocString((WCHAR *) L"system");8 p! h* r& o( T
VariantInit(&requestVariant[1]); - ^: x0 l7 {6 I0 U8 U @ requestVariant[1].vt = VT_BSTR; - E: T7 r# q( [+ R/ d+ I requestVariant[1].bstrVal = topicStr; + H5 B0 p" o0 O! j/ x, _ % L8 d) s3 M) ?. K. o// Set the DISPPARAMS structure that holds the variant.- T) t4 D8 O5 ~, [6 O
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dp2.rgvarg = requestVariant;# x7 _8 M. v$ J9 d: L
dp2.cArgs = 2;2 q- V% m0 r; p* Q7 }) J& ]
dp2.rgdispidNamedArgs = NULL; ' l3 c X2 ]) M2 L dp2.cNamedArgs = 0;. ^- I, G8 X3 g; q6 o$ D r' V