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:& D1 V' g3 b" l0 I6 ]/ f# E! ^
Name = (WCHAR *) L"Poke";# b# E9 f: P5 {& U5 B R. e6 I, O
2 O; `% |: D* R6 Y% P/ h hr = m_pDisp->GetIDsOfNames (; W7 L. O8 d* m+ x4 ?# E: ~ Q$ F
IID_NULL, // reserved& m4 v4 c) k' ~8 ]1 y9 z! U' ]
&Name, // Array of names to get IDs for9 {9 s9 r$ O" ~! P. s8 {
1, // # of names in the array. j. u- s- u3 l/ o" U+ i
LOCALE_SYSTEM_DEFAULT, // System locale$ l$ [' |7 {4 T9 J
&pokeID); // Array of IDs to fill on output 3 |* P+ d5 N0 E0 b/ V! E / B- n0 ?9 a; g if (hr) ) |$ v9 X6 @$ D8 A { % P2 Z5 K- d) y* N3 N* \5 ^ MessageBox ("Get Poke Unsuccessful"); 8 ~7 E$ j2 j1 f return; % ~: ~# ]1 s. h: H; } } ( I8 }% }1 d% O) D 8 W! I' x5 U, T$ U' v l0 Q+ z. y: O/**************************传递数据给extend**************************************/ : P( h" a! T% i0 p' _, M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 y/ |. `' D) m
6 J5 ~; M; L. m/ q valueStr = SysAllocString((WCHAR *) L"1232");6 W5 ~+ m+ {5 S. l# S6 S9 h6 o
VariantInit(&pokeVariant[0]); 2 x2 y5 r9 V0 B$ Z5 M pokeVariant[0].vt = VT_BSTR; 2 t# i- k& j$ A6 ~# Z& x5 F. q$ v* P pokeVariant[0].bstrVal = valueStr; ! g/ O2 \8 _* l1 Y8 J2 g1 E+ h7 h( ]" [ `% O& n" X2 S3 G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! P; G4 x1 d r! U9 w VariantInit(&pokeVariant[1]); 1 U; M: e: p7 B5 e/ C! {
pokeVariant[1].vt = VT_BSTR; 4 r" d6 g* w { pokeVariant[1].bstrVal = itemStr;/ S2 o9 K" ]5 M# Z
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topicStr = SysAllocString((WCHAR *) L"system");: k$ u& s8 D% R' f: `1 C' w
VariantInit(&pokeVariant[2]); 3 _, |* E4 T& o% }
pokeVariant[2].vt = VT_BSTR;) x. X/ N1 S" p+ `
pokeVariant[2].bstrVal = topicStr; $ V$ G' S$ U/ O4 b$ g" q7 w . V {. z4 q- x* C% n& \# ]// Set the DISPPARAMS structure that holds the variant. 8 @4 ?6 q8 R( c% i0 Q+ r* ]; Y $ I4 v; i5 e4 j/ H6 o1 \' C dp.rgvarg = pokeVariant; # t5 i$ L: Y7 T dp.cArgs = 3;) I* Q/ ~9 N- p- r! X: a, s
dp.rgdispidNamedArgs = NULL; ( Z2 N+ r2 C7 m8 ^7 n7 D dp.cNamedArgs = 0;9 T. U" f5 f% S8 ]
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// Call IDispatch::Invoke()7 {* G! i: l0 c$ l; `3 c
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hr = m_pDisp->Invoke( - c, R7 ~* B, f @ pokeID, E0 F' d9 _" H$ d' V; y2 E( w IID_NULL,' k$ O9 |5 _+ y' d& w
LOCALE_SYSTEM_DEFAULT, 6 H6 q$ M4 u6 b& a DISPATCH_METHOD,- M9 Z) ?7 i' `+ W( |2 G
&dp, 2 Y. n) t6 F) A% l NULL, 3 M# E6 `& a; |5 t9 j1 J2 Q5 j &ei,) c5 l, R- _6 x- o8 J6 |) k2 w
&uiErr);9 p( s/ h& |0 |# v* M, _1 U
3 I" X* Z7 n P SysFreeString(topicStr); $ k! N7 A! [/ K! D5 f" p U1 U SysFreeString(itemStr);. |! ?* [$ u! }! m
SysFreeString(valueStr); 8 s* C- O- ~2 R2 ^ y$ Z q9 E# {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 p2 B4 r( B, {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 D# Z: N1 |5 w: Q# Q4 F/ t
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2.这是request的程序 ' j8 C9 s/ F7 u5 P: f: B* M// Request a value from Extend. }1 b) ~" ~* q
/// }2 f% f9 H1 }: X7 f" X7 ~
// Initialize the variant that will hold the BSTR. Set the variant's $ g5 m* Y. M `5 M// type flag to indicate the fact that this variant holds a BSTR. Place the : k# k8 J- |& p$ h' C// BSTR into the variant structure." @, ~1 h0 \+ E# p% w
, y& Q4 M7 s2 e% h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % e2 e, i$ W& ? 4 s. \) k/ @' Y0 y6 n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & ^8 S- Y9 N) O( d( n VariantInit(&requestVariant[0]); 9 q3 P- h4 x8 k" i! ~
requestVariant[0].vt = VT_BSTR; 6 x) Y& \) L0 x, S) E requestVariant[0].bstrVal = itemStr;, X% I( s6 E2 W8 P- m' l
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topicStr = SysAllocString((WCHAR *) L"system");+ H( l% O/ S' S7 I u, u
VariantInit(&requestVariant[1]); # w, d& D* x8 }6 x6 l: X3 j1 @- r7 {
requestVariant[1].vt = VT_BSTR;5 K G( {) f+ y2 H& J) ^0 ]
requestVariant[1].bstrVal = topicStr;6 }) o! u, U8 |8 y, J& \8 H
4 ]+ y/ i! w' j// Set the DISPPARAMS structure that holds the variant. - }0 U8 ~3 b5 F9 O0 X( c Z* G. g2 n: E8 W dp2.rgvarg = requestVariant;, O- H; Q) m4 t
dp2.cArgs = 2; $ Z6 W4 j% J; q$ d1 i: Z6 H dp2.rgdispidNamedArgs = NULL; 3 p" t$ @8 @, J4 u+ k dp2.cNamedArgs = 0; d$ X3 l8 P2 ^, G: \2 g5 v$ m+ r% ?1 Y' H" q3 w1 O+ o
var.vt = VT_EMPTY;1 i) U8 h+ s- n9 }
0 A$ t9 z. S5 F5 p$ q, D9 C! T// Call IDispatch::Invoke()* f" v v# H! S% n1 p1 c
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hr = m_pDisp->Invoke(: t5 y1 G3 A" I
requestID,4 ~7 g- w' C( _1 Q/ ~. k c
IID_NULL,0 r$ J% U8 L2 @: M w$ B
LOCALE_SYSTEM_DEFAULT,; u5 m6 j' W: P
DISPATCH_METHOD, w7 P$ V& V7 v &dp2,& n. B4 Q" S' _( c8 u' U, c; X% u
&var,) I1 o2 H, N0 _/ F' X6 c
&ei,9 o/ E x- y3 S' ]2 Y
&uiErr); 7 {9 R4 z0 J, O) V* F A: D6 Y p. V4 x
SysFreeString(topicStr); 4 |& ]% O& @. g# g5 A1 e) K* ? SysFreeString(itemStr);7 ?0 y% _+ k/ r C2 f2 Q
请问该程序是获得extend里面的哪个值?4 G6 U; {4 y8 _4 T. e3 R" J% H/ R" q
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????