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: & z- f( T, m- r( W' g$ C* FName = (WCHAR *) L"Poke"; 0 J t @- v) r9 B: r & d* i* ?/ ^ B8 s hr = m_pDisp->GetIDsOfNames (: ^0 `* d$ p9 v, G% \9 Q) S" D
IID_NULL, // reserved0 I) o3 d. A! M5 e3 U$ v- Y6 E
&Name, // Array of names to get IDs for t8 H3 V4 r/ Q2 y, _) e
1, // # of names in the array* H0 m' ] |" @8 `0 ^7 u3 l8 e4 v
LOCALE_SYSTEM_DEFAULT, // System locale 2 U$ n3 D0 v9 C% B D# N6 K0 N9 V &pokeID); // Array of IDs to fill on output8 M) J) f& A! W8 Z( f6 G
( |' D7 \# u4 \5 F7 u
if (hr)' b: Y+ ], m" i& x2 }6 Y, l
{ % X& ?" k( d8 L& s+ E/ m3 I: [4 |3 ~ MessageBox ("Get Poke Unsuccessful"); , w- Y6 H) S4 M; _ return;9 ^3 \$ V2 h5 b: ~/ P- y" ?
}5 \- E ^1 q9 {% ~" |
+ X7 [5 }7 R6 `7 L
/**************************传递数据给extend**************************************/ & I7 _5 F' t6 n$ y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 Q2 T2 D2 N; ^+ r
- N! s" K3 O3 ?1 d! ~1 h) D% b) U
valueStr = SysAllocString((WCHAR *) L"1232"); / Z# J# e8 I( W2 K; g VariantInit(&pokeVariant[0]); " ]3 u1 c! L* d- u, R pokeVariant[0].vt = VT_BSTR;5 _( F$ H2 i+ ^/ `* [% Y, y
pokeVariant[0].bstrVal = valueStr;0 m8 m6 J9 m+ T$ k
, {% M4 p7 t: D8 L6 u. ?. t3 k# d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 l: H2 l( E* L& z
VariantInit(&pokeVariant[1]); 1 L+ u }# c5 i! @ pokeVariant[1].vt = VT_BSTR; 6 t4 y* s* w, e' e pokeVariant[1].bstrVal = itemStr; $ f7 V0 Q+ s/ e% ]) l, ^2 d & P! X' u; b. c8 Y topicStr = SysAllocString((WCHAR *) L"system"); 0 V# P6 T0 y7 C' ]$ k5 u" Y VariantInit(&pokeVariant[2]); 2 H: t U+ t" _& w
pokeVariant[2].vt = VT_BSTR;4 M$ `& ]& R( U8 ?5 Z4 L& u6 c! @
pokeVariant[2].bstrVal = topicStr;5 R9 a0 w3 @: g! Q( R" x2 B
5 T% A+ n/ W! q3 D% Z" x// Set the DISPPARAMS structure that holds the variant. 2 { e& y, O+ v% }9 |2 G" |1 N `' J' T b k
dp.rgvarg = pokeVariant;* b9 U2 T& o& W, z+ \( @( h1 c0 H$ O
dp.cArgs = 3; 1 V6 D1 }8 f1 m& l+ ]$ X- Z dp.rgdispidNamedArgs = NULL; ! J( K7 M" U2 F; K; x* l m dp.cNamedArgs = 0; : n( \/ y U; e u% c$ T( M 4 a. J: o1 {3 E( r// Call IDispatch::Invoke()1 [5 O( ]7 H Q/ N% d
, _6 L, a) O" Z9 A! y hr = m_pDisp->Invoke( 5 G0 F6 P8 {" C4 j& A2 d pokeID,& K- U" a: M! A
IID_NULL,% c7 \( E, R/ p1 Z, K8 `/ J
LOCALE_SYSTEM_DEFAULT, + W( S6 l' j, O2 i+ b+ x& R DISPATCH_METHOD, # k( |# X3 v" N* @ &dp,+ O, |& `3 j% {( z! a! u8 f! s- D
NULL, : C* p4 I. y, n &ei, # w( U& H. j+ K &uiErr);0 ~" T, k9 \& t I0 F
* c# C) M* t8 G% E SysFreeString(topicStr); 6 h% Z9 P8 |7 ^3 b# d1 Q SysFreeString(itemStr);- R {9 ~; s1 ]# b i2 e" X9 W
SysFreeString(valueStr); 7 f4 H8 E- ]2 D& { ( A* q3 P4 j2 Y6 C6 I* A( 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???7 k+ e* L9 n# S i
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????+ ^; |8 }2 J v( m: t
0 @, a. u9 v. Y9 h0 t, e- P5 `* k2 Z1 S, h2 I( x! U% J8 N, q; C9 t, w
2.这是request的程序 1 b1 B3 v* E( T' V// Request a value from Extend8 d0 v/ z$ {% v9 ^# d+ U% d
//5 O7 }) Q o! ~" u" K4 X' k
// Initialize the variant that will hold the BSTR. Set the variant's 6 g7 t1 l7 {) M4 E+ h// type flag to indicate the fact that this variant holds a BSTR. Place the% u5 z/ w! G2 F2 J
// BSTR into the variant structure. . O( J o9 F6 o. I# I3 t; {/ R- M7 Z$ _3 f9 L7 K
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ {) y5 r( A! g- v 0 j2 c/ }1 f9 @7 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # T0 I" X6 w5 z! d* K1 h VariantInit(&requestVariant[0]); / G8 s; l$ k+ |2 e9 t( N* y+ S
requestVariant[0].vt = VT_BSTR; 0 ^# X4 _! A5 q) q* h# r requestVariant[0].bstrVal = itemStr; - ^0 h0 f! u, T: K0 i' j& s& P/ ~! j( {) W, T- N) E1 G; b/ @/ o
topicStr = SysAllocString((WCHAR *) L"system"); ! A- R: [0 l4 l0 G8 o D VariantInit(&requestVariant[1]); % q; u" |) Y1 y ^: t4 t G( O: } requestVariant[1].vt = VT_BSTR; 5 Q8 _6 E9 S$ N3 X5 V$ m$ w requestVariant[1].bstrVal = topicStr;/ f+ v9 Q' Y( x
+ L1 z U1 _' |; \+ X- C// Set the DISPPARAMS structure that holds the variant. 5 E0 u+ A5 }3 h e ) N4 T4 ^. K }, e dp2.rgvarg = requestVariant; * y, r6 R" l; y- B9 O dp2.cArgs = 2;; g- ]# J( x. {
dp2.rgdispidNamedArgs = NULL;$ L7 S# `2 m P! f
dp2.cNamedArgs = 0; 2 [" E, v2 \0 S- I0 ]. K! k* j# F# s+ N
var.vt = VT_EMPTY; * h: }+ k5 c. F8 g* O3 b7 o% r+ l }
// Call IDispatch::Invoke() 5 J4 _/ \8 z4 B7 W% k ; O* l( ~6 R+ ^, N% r5 ]/ B) Z hr = m_pDisp->Invoke( & ^+ G# m8 Q8 b5 b% k+ B requestID,& x7 i) y( i1 F% j; ^
IID_NULL, & ~$ W ]4 p; J8 G* A+ R LOCALE_SYSTEM_DEFAULT, - u }3 t. }" p2 V- L: e; \ DISPATCH_METHOD,5 G9 v" r* @& f2 J
&dp2,; q4 C" w4 s! {5 C" L
&var,' n! h a: }! b2 }
&ei, * t% P% f) P0 Z &uiErr); , T/ u+ b7 o9 F; W5 O" t/ G 1 ]0 L: U# n# A6 R SysFreeString(topicStr);% A% A' D: H S, D: R
SysFreeString(itemStr);1 l7 G3 t6 X; I$ f9 c& ]; g' E& ~
请问该程序是获得extend里面的哪个值? ) F6 t) z7 i/ k& e1 ~! {; U" R' d: N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????