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:' G) I* D# }2 K! e
Name = (WCHAR *) L"Poke";& C# [. v1 }% P& N* _# l
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hr = m_pDisp->GetIDsOfNames (; E& q' @2 D* h& D# [5 _8 r
IID_NULL, // reserved 7 r4 |7 F1 j% h) T# ? &Name, // Array of names to get IDs for5 ]2 q2 J* l7 G( d- ^8 B
1, // # of names in the array( J! c/ h$ o- H! `
LOCALE_SYSTEM_DEFAULT, // System locale 0 q3 o# H6 I7 M% W7 z% h& V &pokeID); // Array of IDs to fill on output; m; R y f6 V3 r w
3 k5 Z0 V* T& k( |9 k4 F if (hr), j6 c, z8 R' G2 l; P! l0 V
{ # o5 \ @* d \. ^3 k) u* J8 f- `& d MessageBox ("Get Poke Unsuccessful"); 1 r! l- h& i3 \2 g ?% D& C* A0 E return;& a' {* ]3 l, z
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6 q' {" Q6 x5 v% j" E' ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , r. ^$ h _7 m6 n8 T VariantInit(&pokeVariant[1]); # u. |8 j* w; |( l; t pokeVariant[1].vt = VT_BSTR; $ l; L, U ^0 D' a- J pokeVariant[1].bstrVal = itemStr;% O9 W) ?: \$ `! [" |/ z8 w
3 H: Z/ ~- h$ Y | topicStr = SysAllocString((WCHAR *) L"system"); + _* f' s; r; ?) _ VariantInit(&pokeVariant[2]); 5 E. a# y0 q. O6 @ pokeVariant[2].vt = VT_BSTR; ) L' {* s w% T6 D pokeVariant[2].bstrVal = topicStr;! |; E4 v. U- }1 {6 Q8 |, T
- E' B3 ^* I4 I3 F0 N; T% p" Q// Set the DISPPARAMS structure that holds the variant.$ ^% ~0 B7 B3 C7 e6 x0 J
# F! S- s% [! s( y2 | dp.rgvarg = pokeVariant;& c! U# M! [7 K1 g6 f7 ?
dp.cArgs = 3; ( a* |7 g- [6 W" v5 [ dp.rgdispidNamedArgs = NULL; ! d" I3 z. O4 z. D; ^# j dp.cNamedArgs = 0; ' @3 ^4 r! _4 Q+ K3 B5 j4 I3 g/ Y- ?! o% w2 F
// Call IDispatch::Invoke() ) O, M* \( o9 j2 U4 N. m . Y8 `9 d3 W3 o' s; \4 V hr = m_pDisp->Invoke( ' ]2 u9 ~0 f5 p& g- B0 h3 U pokeID, : U F+ z& ~# l IID_NULL,8 z$ \+ G' I& S
LOCALE_SYSTEM_DEFAULT,% f# i. C4 e- I/ Y( N- i
DISPATCH_METHOD,9 y& T% P c* M8 X* x( e4 g
&dp, ( e: }4 _3 c% g+ z! I NULL,! U- e( o7 g R+ @
&ei, - `4 ] @5 ^ L8 L- G0 `, U &uiErr); J4 H1 D2 X% a8 K. x7 z
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SysFreeString(topicStr);% v1 O" Y. ^2 \
SysFreeString(itemStr); 7 J ]0 n$ j% h% g2 ]0 y) M SysFreeString(valueStr); % N" x- c7 X$ k- w* p 9 S$ m9 j1 s0 o7 c) H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???# D5 _6 x4 s( {0 m% H0 z/ E0 w6 }
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????+ r5 e" M( V( }' ~5 k
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" _) @' q4 c1 \' p2 Q/ u! U8 i9 l2.这是request的程序. w) \, ~: \* P, u* n4 }
// Request a value from Extend ) U7 P- |$ F H# j//& t; R& y( Q$ H* V' z! ?
// Initialize the variant that will hold the BSTR. Set the variant's " Y6 y0 R1 |7 j) b: w' y( ^) V4 l// type flag to indicate the fact that this variant holds a BSTR. Place the 1 Z6 a9 _( ?; a6 {7 L& A2 P* P// BSTR into the variant structure.! y! g, d! q& l ~+ R, R
2 T7 @# Y+ ]/ t( U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, E3 n5 F9 x: \- r3 F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 L6 }% R( O2 `) A! |
VariantInit(&requestVariant[0]); 6 L, s: X1 v9 F* x) X3 P7 B$ n- E requestVariant[0].vt = VT_BSTR;, e x k( v% }4 \
requestVariant[0].bstrVal = itemStr;( z; o0 ?3 z+ |) V8 U
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topicStr = SysAllocString((WCHAR *) L"system"); " V* U' L7 H# B. g VariantInit(&requestVariant[1]); 3 k) h. Q8 {/ M( Z8 t5 E) ~+ i requestVariant[1].vt = VT_BSTR; # Q0 ]0 l3 t( j) K+ p- X requestVariant[1].bstrVal = topicStr; / j/ I3 ^6 Q% l3 D _& w+ _4 v# H; D2 K8 F2 A; w
// Set the DISPPARAMS structure that holds the variant. & b0 {" _$ H) Y9 F" z' [ 2 l B* V, x8 j; _0 G. \ dp2.rgvarg = requestVariant; % l* Z' W% J2 K# s$ i dp2.cArgs = 2; 5 X7 n( C# f& h" z dp2.rgdispidNamedArgs = NULL;. k! d6 j* {8 y7 k! `0 V
dp2.cNamedArgs = 0; 2 w/ {* N4 o* `0 @* z ' W5 @/ E) ?& X+ { var.vt = VT_EMPTY; & B) A: e& R" T8 _8 l( k6 a& g( A( H0 v
// Call IDispatch::Invoke()5 G8 P- }; o- `9 C
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hr = m_pDisp->Invoke(9 h4 C- J) K' n& q( S4 v
requestID,( W; X; P) [/ E& G& T: `5 O2 o
IID_NULL, 0 Q( m6 S2 q, }! z LOCALE_SYSTEM_DEFAULT, 0 @6 {! F9 [# I: j- w3 r g6 ~7 N DISPATCH_METHOD, + e: N: j I' D g) R5 t+ H &dp2,# w, i; b$ [ d( R; T' M3 P* g
&var,9 l, U( `) q3 a( G5 Q' l
&ei,' q& x: F3 A) H0 g! A8 _4 v! M8 }
&uiErr); + w! K( C2 i3 q! `( q7 o3 e+ I6 C( A3 ^+ n4 F7 O/ D
SysFreeString(topicStr); . X0 s8 B3 [2 i) V$ Y2 l1 K B SysFreeString(itemStr); , M4 X/ @3 B. b' A t请问该程序是获得extend里面的哪个值?- H; D6 g$ c F: @7 G4 p$ V( m
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????