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: I1 j7 V: }; }
Name = (WCHAR *) L"Poke";! W& }$ ~( ^/ g. Y1 B* {2 v
~5 G; a0 e% _/ A2 [! T hr = m_pDisp->GetIDsOfNames (* ]- c4 O, v _1 O' t
IID_NULL, // reserved : v. ^& L( }6 v% l4 ?" K &Name, // Array of names to get IDs for& {* V. f; v( j( E
1, // # of names in the array: W. e% k( d+ }
LOCALE_SYSTEM_DEFAULT, // System locale4 T8 i, ^$ q- M9 Y9 [" u
&pokeID); // Array of IDs to fill on output & w! Y* [- N+ C0 c/ r% w 5 U" X+ k. L. K" |; G
if (hr)7 E a, e; ]( G& H# L9 }5 c, J* P
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MessageBox ("Get Poke Unsuccessful");4 U) n7 W6 H- w. J6 \% l8 f: D- H
return; # {. t: m Z4 X } 1 W: p3 Z% E- u' x; e2 `9 s$ |1 V
/**************************传递数据给extend**************************************/ / d: ^' J5 g6 f! E1 {/ P9 N( H0 \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ K5 T6 ~. i! N E, I _ 2 H0 S2 a9 F0 f1 S8 A3 B valueStr = SysAllocString((WCHAR *) L"1232");7 }: d. k4 e* F
VariantInit(&pokeVariant[0]); , i6 x( H& x6 l# k) w( } pokeVariant[0].vt = VT_BSTR;0 b3 k; P( [) P) Y
pokeVariant[0].bstrVal = valueStr;/ Q" j x- T7 f+ L5 ?* N
# t% C% [. D y' u+ m8 ^( `; x4 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , W7 W* N) G$ ^( C' j8 J VariantInit(&pokeVariant[1]); 4 k8 p8 K- j: g7 c' V
pokeVariant[1].vt = VT_BSTR; ' A3 n! _1 Q# M R pokeVariant[1].bstrVal = itemStr;3 V# q& u) T9 y9 @8 d' R) U
) U, s9 w. R% b( H& f topicStr = SysAllocString((WCHAR *) L"system");4 s! R& u3 ]0 d. S5 ]
VariantInit(&pokeVariant[2]); 7 G' O( y1 R# a: o! X
pokeVariant[2].vt = VT_BSTR; , i3 `! T1 X4 f pokeVariant[2].bstrVal = topicStr; * P; s- Z2 |* A- {' [7 y ( T3 u2 K3 ]3 B. j7 c9 Y// Set the DISPPARAMS structure that holds the variant. $ {' b6 O$ k+ W" g8 ^3 E8 c" i( v% X+ P
dp.rgvarg = pokeVariant; 7 C6 L& U. y0 T) n dp.cArgs = 3; : j, r9 ~8 C, R1 Q dp.rgdispidNamedArgs = NULL; ( z# [3 { Z' E" `3 K: E3 U dp.cNamedArgs = 0;* g% X: Y6 z# |9 O s. G- r4 k9 S
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// Call IDispatch::Invoke() - W* |/ }- O& g: t$ W+ J4 W+ `5 n" D
hr = m_pDisp->Invoke( ' L( f2 A% O' [7 D pokeID,. Z0 g7 ]0 K' z1 q* N3 o
IID_NULL,! h/ \2 I6 ~/ T* ~- [6 l
LOCALE_SYSTEM_DEFAULT,/ g' W0 T6 D4 T t% C& L" I
DISPATCH_METHOD, $ I9 j6 s+ T7 l9 n& y% p! r/ D2 F &dp, ( |( q8 v' F' D7 o, p, K0 b4 u1 z NULL,- ^8 c# ]" _& k
&ei, - m/ a# q; b0 N9 c) p# ]0 ^ &uiErr); ^, l1 v0 u! d* X 0 P6 s8 {( ~* x+ r% c# b SysFreeString(topicStr);( f* H; l" Z8 o. Y
SysFreeString(itemStr); $ { e0 w& a; | SysFreeString(valueStr);9 w) E7 `+ s8 Q
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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???7 ]/ A$ E8 Z6 t' e0 V
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 i; h' j6 S: S. u& M
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2.这是request的程序 + E; @% M4 h' [// Request a value from Extend * j; i% C8 M) M" ^1 _! F// ) U9 J- q7 @) M9 g) l7 {// Initialize the variant that will hold the BSTR. Set the variant's 6 B1 c2 D4 h; x// type flag to indicate the fact that this variant holds a BSTR. Place the - D% F w8 t. \. I! U// BSTR into the variant structure." x* H8 x) F" A9 u% \