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:: S$ c/ m* |6 t; Q- \* U
Name = (WCHAR *) L"Poke";4 `2 }4 b* E7 O: e* l. Z, w
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hr = m_pDisp->GetIDsOfNames ( * l' w [4 \/ I! n/ t$ r( f IID_NULL, // reserved , d7 V% m! G: y5 ` &Name, // Array of names to get IDs for * R+ O9 J% \; L5 @5 @1 q/ o 1, // # of names in the array {& v T* v d- h/ Z4 A# u LOCALE_SYSTEM_DEFAULT, // System locale 6 p3 G; I! K: y! B7 J. {8 X &pokeID); // Array of IDs to fill on output 5 W6 ]3 d9 [* }1 o4 t $ Q0 ]& r% |0 R5 }: A
if (hr)* D. G& k- i0 r+ |) t# u1 ?% h
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MessageBox ("Get Poke Unsuccessful"); ; ?* ?4 z9 W- g! G: j, o return;3 a Q) V' B3 [% L v, |
} # x" g0 ^7 M8 e3 C. F* F 4 D0 B E: C# I5 q* n' t/**************************传递数据给extend**************************************/ - m3 V g ^: }# I1 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # Q1 C/ P$ y. e: ~ & w0 f- h; \6 y% M) c+ s F valueStr = SysAllocString((WCHAR *) L"1232");$ U* S# Z. L0 j) K$ L
VariantInit(&pokeVariant[0]); 5 H% x" C0 i7 j pokeVariant[0].vt = VT_BSTR; ! K' ~. u2 @6 H pokeVariant[0].bstrVal = valueStr;" G1 y, f: C2 u) `, ~1 a
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& b$ t. R+ |; L( Z8 w9 J
VariantInit(&pokeVariant[1]); ) {& u1 \8 }$ N$ a- D# N. y
pokeVariant[1].vt = VT_BSTR; - ~/ r! W& e# S pokeVariant[1].bstrVal = itemStr; 3 r+ t2 W( z, F S7 y8 M, \/ [( X ! m/ J3 o* c% _5 `9 T topicStr = SysAllocString((WCHAR *) L"system");4 c; \$ K T5 F- n
VariantInit(&pokeVariant[2]); * r. w7 j/ e1 J* m, Y pokeVariant[2].vt = VT_BSTR; 5 U3 ?/ z- d5 w. a pokeVariant[2].bstrVal = topicStr;, `) Y- C/ i7 e7 F* |9 I
s' c n7 f4 R1 Y// Set the DISPPARAMS structure that holds the variant./ e% L1 {$ Z6 W
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dp.rgvarg = pokeVariant;6 c' d. E E/ X$ B3 M. P" M
dp.cArgs = 3;; Q1 R4 F9 t4 R1 s! F
dp.rgdispidNamedArgs = NULL; 2 t2 r9 Q4 b: w2 b, J" F4 _1 i* K dp.cNamedArgs = 0; - `! w9 H, M1 _ # D, H" r u% Z- E// Call IDispatch::Invoke()! R3 |9 T8 d \. K/ \( \) ^1 o6 {
( e8 ]# _% ^6 N `* Q* P hr = m_pDisp->Invoke(% L. q \) L! l3 y. g2 a
pokeID,# x9 A _) O n { G$ C8 H* X. P
IID_NULL, * u* `( B2 O( P6 d3 b5 y LOCALE_SYSTEM_DEFAULT,. \3 i9 d6 Q: {. o" q
DISPATCH_METHOD, 8 g8 O! {$ W! d1 A3 j. u$ e7 w4 S &dp,$ P9 _ v; c+ }; h
NULL, $ ]; |* e; C% X j" r: a &ei,/ U, B! J: s; w' K R
&uiErr);1 D: q B* B- o/ j1 Y1 A) B
a( l# ?& g A; @9 D. b' ^ SysFreeString(topicStr);- e6 [0 l; v# L1 e
SysFreeString(itemStr); , ~0 a: P) K& w1 Z! V! G- R SysFreeString(valueStr); 0 l+ u9 W- K: H% x) |2 l4 U6 Z$ ^8 B
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???+ ?% z/ p: S/ |( G2 `
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???? + {7 l$ z: x$ E( P; ~3 j7 D+ M4 Z* e$ Z0 X/ u
5 m% Y8 w% h6 _$ N2.这是request的程序# u7 @0 g$ `( I" _4 M
// Request a value from Extend7 b( a- M) s" F9 _/ w
// $ T, x, f- X9 ~2 O; ~8 b9 |// Initialize the variant that will hold the BSTR. Set the variant's # p$ G# B' K& f1 |. X e* m// type flag to indicate the fact that this variant holds a BSTR. Place the; B0 E! j0 j2 l
// BSTR into the variant structure. 3 x' Y Q* H6 R$ ?! S/ z9 [" O* z2 r! a! z; X) x, C O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 k1 f2 G; `2 \) i; r. n, @8 G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! x+ B( C, V9 k# T' n9 R VariantInit(&requestVariant[0]); 4 U* O: X- m5 \" F requestVariant[0].vt = VT_BSTR; * H( V* L+ M: U1 H9 T, y requestVariant[0].bstrVal = itemStr;/ u5 H0 I) e& l: T t+ @
9 }% K# |2 l, r9 P" M f topicStr = SysAllocString((WCHAR *) L"system");$ |" E4 N2 L$ g$ ]& \
VariantInit(&requestVariant[1]); % h6 C) O, ~. P4 n) K- B h
requestVariant[1].vt = VT_BSTR;0 U* Q) e1 j2 T. A9 M
requestVariant[1].bstrVal = topicStr; & f( r |2 ?4 T2 _, ?( e. Z6 j6 C, ?% L) Q, o
// Set the DISPPARAMS structure that holds the variant.. }) L1 Z8 D5 V9 ]' {. @
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dp2.rgvarg = requestVariant;8 S; ]& W+ t) X/ r& X& Q+ k
dp2.cArgs = 2; % ? Q! ]! U# _0 _) G2 u, a dp2.rgdispidNamedArgs = NULL;' J& f% G# i6 ?0 ~/ q
dp2.cNamedArgs = 0; " r7 M/ L3 M% x+ {1 _6 J Q+ ~. r+ D. V$ G/ z3 x
var.vt = VT_EMPTY;+ A; _+ ~. f; u0 w+ a( U% w6 B
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// Call IDispatch::Invoke() ' g) [- {, x! A+ @( K I - O3 C' j* g! e2 `" l& m0 O hr = m_pDisp->Invoke( ( H) _- E, J/ o# k5 Y5 i% F# {' j requestID,; w7 P. e2 N+ U! ~/ K
IID_NULL,* T# |: {6 t3 Y% a Z% G, `* _
LOCALE_SYSTEM_DEFAULT,; S5 ^6 k+ k5 ]/ B7 O( L
DISPATCH_METHOD,$ ^: u1 G& G* d+ E ?
&dp2, ; m+ P& O5 b5 o M% A) S6 t- h &var, 3 e/ k/ M$ u$ t: T% {! F &ei, & `. C: z$ O$ |! ]0 o1 j& `( h &uiErr);, p& T0 W+ p9 @2 Z/ i0 _