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: : r8 Q0 |! f* }! ?6 WName = (WCHAR *) L"Poke"; I0 X6 d( U6 @( `8 |* M . m8 Q$ H" y7 c, t) X4 x, B
hr = m_pDisp->GetIDsOfNames ( 2 {+ ?. I ^( F% @" e" G IID_NULL, // reserved 0 F: u. |# G& Q1 V( K/ ~ &Name, // Array of names to get IDs for' `. Q( _; K' U4 N- V! a+ p
1, // # of names in the array 1 O) n4 U! @" k5 ?9 F7 t LOCALE_SYSTEM_DEFAULT, // System locale' @0 I( y8 O4 X& L
&pokeID); // Array of IDs to fill on output $ _8 f7 c) w& T, B/ |( G $ w0 q8 j& R, E# U/ K if (hr) R2 W3 A; T n- E
{ # C0 J6 ?2 C- ~6 q0 J2 x MessageBox ("Get Poke Unsuccessful");$ I0 j: |# U: I- s
return;; t0 _& \+ N6 s: r- q
}; b! L d2 F3 ~- s
5 |6 [! D7 T! S1 z/**************************传递数据给extend**************************************/ + l7 R g4 m. `+ t1 V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 K; n0 q+ R& Q8 W% j7 q- { ) K* ?' I4 F" I- i, H+ y
valueStr = SysAllocString((WCHAR *) L"1232"); 2 g% U) {$ |+ I! y/ m2 \" L. T" o3 | VariantInit(&pokeVariant[0]); 0 O) H- e- j: K3 i
pokeVariant[0].vt = VT_BSTR;% ]" M+ v) C9 _9 \. Y7 @0 |
pokeVariant[0].bstrVal = valueStr; + r) C# N/ p+ J& \# c/ O8 ~! T% F; a* c& v1 _+ P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ i3 `8 f( w& u
VariantInit(&pokeVariant[1]); 7 y5 m; a0 z# S- A, m- [
pokeVariant[1].vt = VT_BSTR; 8 [; b* l, h7 f i( F pokeVariant[1].bstrVal = itemStr;' R, x' k; R" Q% e! J
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topicStr = SysAllocString((WCHAR *) L"system"); t. h) Z* d* L& H, i! E VariantInit(&pokeVariant[2]); " Y. c4 l# e- q: L3 w9 H# u& z
pokeVariant[2].vt = VT_BSTR; # p! W2 q8 s) T$ W# }2 k# N; h pokeVariant[2].bstrVal = topicStr; 9 ~- g# h: R/ S0 p1 t* Z7 O" T: |% ?* ?" m& A2 ~* p" L
// Set the DISPPARAMS structure that holds the variant. - n6 r+ F; f7 ~! u& |# K8 x+ ]2 j5 r) v. _( u
dp.rgvarg = pokeVariant; " [$ X' d2 C; O' _( V* M dp.cArgs = 3; 4 j9 O1 H/ e5 j; a' s dp.rgdispidNamedArgs = NULL;2 Q% ^( S2 V5 Q8 \' Y$ C4 z
dp.cNamedArgs = 0;$ P# a6 A m% G; x& V5 ~6 H9 w
) i8 j+ g/ v% o( _/ a4 H* D// Call IDispatch::Invoke() 3 a ~6 s5 c5 r. L# x8 g* `& p & \, X; P U6 M6 F; Y1 H0 q: I3 V hr = m_pDisp->Invoke(* [/ {' A' x9 d( S* z8 F# I7 Y
pokeID,, u* }" }% B1 t
IID_NULL, , ?( E$ X! N% s5 F LOCALE_SYSTEM_DEFAULT, 9 D" ]) D* |- h9 c: p% Q DISPATCH_METHOD,) U0 l1 A) a7 t8 Y, B
&dp,) v+ w: J$ k9 f) Y0 e* L
NULL, o) t3 h3 y- U+ n
&ei, $ i# b% ]4 R6 @4 A &uiErr); , R% z" i Z" H: s3 W6 R" o) p/ e- m) Y8 L
SysFreeString(topicStr); , s. x J! T7 d8 `- k; w0 _; R1 x SysFreeString(itemStr);3 r4 Z+ W0 Y7 m8 y9 A$ W' n O
SysFreeString(valueStr);0 v3 |* l$ F2 J* e; K/ J) F
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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???4 P/ R, O- O, X# N9 P; p! |
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????4 m& y+ M ] I5 W
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2.这是request的程序# @0 R$ A; d/ a$ q% p
// Request a value from Extend" F' _: i1 p! R
//, Q! i% {2 N& z! `) ?0 U$ m
// Initialize the variant that will hold the BSTR. Set the variant's 0 {! L& C8 C" M) g, Z" Z// type flag to indicate the fact that this variant holds a BSTR. Place the5 Y4 b8 `. d( L# K& v! D: v4 C2 ?
// BSTR into the variant structure.! m" G+ S, P1 Q# A/ |. W& l2 D
2 [& m: o' ]- \. o$ B& r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 L8 ]$ @& X0 d# ` / t& K5 B; t$ C6 |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . B4 ~0 h( i6 H1 M( L. A VariantInit(&requestVariant[0]); / ^! `4 V5 L- v
requestVariant[0].vt = VT_BSTR;0 k* o2 ]5 e2 S; L; l
requestVariant[0].bstrVal = itemStr;+ T9 a6 p* a- Q3 v! {* L