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:# D4 |! n7 @6 c$ K" ]3 Z
Name = (WCHAR *) L"Poke"; 0 n0 ?6 e, |& ^4 p: Z 9 T& o1 d1 o0 J! b4 z/ ^5 D% N hr = m_pDisp->GetIDsOfNames ( ]2 a& O$ R6 Z
IID_NULL, // reserved ) O8 d" V$ Z& f" t1 W* D% J; Y &Name, // Array of names to get IDs for- W3 |( C# o+ m& C% e
1, // # of names in the array, u' Q& w- n& y( M4 Q
LOCALE_SYSTEM_DEFAULT, // System locale6 D% I Y* q: d& [+ u- S
&pokeID); // Array of IDs to fill on output 7 z, n c$ i7 u) k% r1 M ! a3 {: t" Y7 D- {5 }
if (hr) 3 Y4 ` h- v) Z1 [ { - I& X4 ?. k- G, j: k) `( M8 ~5 ? MessageBox ("Get Poke Unsuccessful"); 6 M; G. Z9 v( X' w, i2 v return; 5 Y( ~) y% s- ~/ V w" w! o } @- `1 y* K* O& {# e/ D0 C; L- Z$ |9 Q# V& Z- ^/ b9 v. t0 q+ X# i
/**************************传递数据给extend**************************************/ : `7 \$ f# I) v1 ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 i# i. D1 R* f
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valueStr = SysAllocString((WCHAR *) L"1232");6 i3 w1 p# ^9 |4 ~& p
VariantInit(&pokeVariant[0]); " i8 y" }6 o6 O" @9 d0 I pokeVariant[0].vt = VT_BSTR; 4 V7 H1 ^( M& l+ L& h pokeVariant[0].bstrVal = valueStr;+ S! F9 y% K3 I! a' g+ U* |1 R$ ?: M0 S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . N( E0 s! E1 S, E! j VariantInit(&pokeVariant[1]); 7 A8 q$ s2 `4 r/ W8 z& h pokeVariant[1].vt = VT_BSTR;& Z) d6 V7 ~( a \/ B3 T( p
pokeVariant[1].bstrVal = itemStr; " O& {0 X, q/ h3 S- ~ O% Q 4 I. s( \' J p9 \ topicStr = SysAllocString((WCHAR *) L"system");. d3 U" `: X6 J# Z9 v
VariantInit(&pokeVariant[2]); ' C' M- i4 g" ?- w; c. g
pokeVariant[2].vt = VT_BSTR;# c! E; X0 o, I' N% g3 b& |
pokeVariant[2].bstrVal = topicStr; ! h1 ?2 J. `4 E2 R& N 6 X2 s0 A6 b4 b* I5 R/ f: x7 {// Set the DISPPARAMS structure that holds the variant. I" ^" |! V& T! i5 C5 N5 p' ]) M6 r, j
dp.rgvarg = pokeVariant; 8 {2 E# m' Z9 D+ m dp.cArgs = 3; & W4 c& ^9 }" O% m% Q: ]: o. K dp.rgdispidNamedArgs = NULL;6 N: P* a' R r+ y4 y3 c
dp.cNamedArgs = 0;1 q$ l' g9 z7 N% z+ p" o& }
5 I5 H* R/ F% ?3 Q, a# ?// Call IDispatch::Invoke()- s* S9 v- T8 M: O0 A T. o& O
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hr = m_pDisp->Invoke(/ K B( F- J9 Z. t3 a
pokeID,& r/ h- l* K2 h' v3 a& q& ]* z0 \4 H
IID_NULL, . ^9 \, j7 H+ Y& C4 c5 j! b! G LOCALE_SYSTEM_DEFAULT,2 X+ x \" Q! I$ c0 E8 z
DISPATCH_METHOD, " H S' L4 m* k" I# w &dp,6 b# y- Z) r# p: I5 s
NULL, 9 _! w" I2 r1 g) a- j; e &ei, - f/ E: b% g' d' k0 L, N &uiErr); f6 ~* M/ b! A
1 {, e+ e8 |; D: F) W" L' V' o+ d SysFreeString(topicStr); S2 d/ Z( ]5 ?! n0 l* f V/ V SysFreeString(itemStr); $ {9 ^( o# s8 S4 J% X f( `4 @ SysFreeString(valueStr); * g' u; Q9 r/ S- c/ ?8 L: S _. ^% P7 w! n) z1 [* O$ D. C
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???/ A: T. ]6 W- i" 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???? & @0 Y/ V% l, y) F( r+ ^ k, B3 o' M, V$ h! H# T2 J1 B
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2.这是request的程序6 C F* Z1 `- _2 U. w+ N2 W$ Y8 S" e
// Request a value from Extend $ D# |4 S- ?3 `* H* N4 b* I//& A* i7 V( f) b- A: f" l2 F2 ~" w: g
// Initialize the variant that will hold the BSTR. Set the variant's ; u& T O( @' F q( O ^$ `. q// type flag to indicate the fact that this variant holds a BSTR. Place the [2 a& B( }, k7 X, X
// BSTR into the variant structure. 6 ?' ^$ C# s: j5 j. [7 t! {7 V9 f* ~: n. B( K! w+ ?$ f+ |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, h+ p7 S' s1 P o$ I0 X6 [' G