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:; N! I- `4 C* q& [3 R7 P& N- N f5 [
Name = (WCHAR *) L"Poke";1 G+ n3 A6 _: k
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hr = m_pDisp->GetIDsOfNames ( ( T d' o/ T. O$ G) l4 c8 U IID_NULL, // reserved % ~9 e [. F6 s+ g' _; J1 x8 p &Name, // Array of names to get IDs for9 m8 `+ w2 _: w$ V2 J7 O! |
1, // # of names in the array ( V9 T- H P" @ M, j LOCALE_SYSTEM_DEFAULT, // System locale. d- F, w( |& s6 ^1 y- u6 E3 }( V% u
&pokeID); // Array of IDs to fill on output 3 H0 v( g4 v2 y. p y1 z ) ]" A/ |! Z7 I# E: D
if (hr) 3 a( I, x+ z; R, }; B$ [ {$ B* \4 z( n0 Z* K7 k) p
MessageBox ("Get Poke Unsuccessful");" F$ E' l2 @2 l# u
return; 5 O# f# J3 H& N. G. r1 L# P } 0 b6 F% i' o) t: p9 n, l V) z: B" y% }& W8 B
/**************************传递数据给extend**************************************/ , i( e( b0 B& D- i5 c% |8 ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); |: E0 N$ Z u# N. k; T 8 [8 L$ M" V5 |3 g/ L+ _2 z$ V
valueStr = SysAllocString((WCHAR *) L"1232");* m4 P- T% c' ^
VariantInit(&pokeVariant[0]); ( X' H' }: a, G1 `0 u, x* c pokeVariant[0].vt = VT_BSTR; ) m: W8 _* {0 J* U6 i0 a pokeVariant[0].bstrVal = valueStr; j- r, U6 c7 B) y$ v( v6 i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 H2 u$ D6 a$ p VariantInit(&pokeVariant[1]); - h4 y4 D" R" \" w5 q
pokeVariant[1].vt = VT_BSTR; : l7 X$ @0 _( P5 E C5 R$ w2 D! b pokeVariant[1].bstrVal = itemStr; : O( j* u+ k5 f2 y% ` # }! r/ d+ i u topicStr = SysAllocString((WCHAR *) L"system"); ; s% v5 ?* X5 v- W0 T- z- L VariantInit(&pokeVariant[2]); , l% F1 T D% F2 y1 D pokeVariant[2].vt = VT_BSTR; M' o. }3 Z( H N# W/ p3 i
pokeVariant[2].bstrVal = topicStr;1 V/ \0 M! M. C& B7 G8 |
, \" d& h+ ~+ X C+ J) L7 g// Set the DISPPARAMS structure that holds the variant.! ^6 b0 D7 N! j, w3 @9 E
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dp.rgvarg = pokeVariant; 6 A8 [4 K! r7 C5 N S dp.cArgs = 3;- M- ]3 O6 i; f1 P
dp.rgdispidNamedArgs = NULL;, b Z7 L- `1 C& ^. ]; k
dp.cNamedArgs = 0;1 w! A, g- ~, t# L D8 w0 J$ r8 `
& R0 ~2 `1 l! f0 O4 N' O$ X8 L// Call IDispatch::Invoke()% Q5 F% D6 } `" T1 F' x' y
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hr = m_pDisp->Invoke(7 o+ G5 u. O% J& X% V+ C' b; }; u$ n
pokeID,4 Y* ^# _+ n$ }( d
IID_NULL, 6 _. A9 r5 G' ]* a+ H8 S LOCALE_SYSTEM_DEFAULT, 1 y) A: r+ o% i8 `6 p' b* [ DISPATCH_METHOD, ( V6 F+ F+ H1 R0 B: o &dp, , b) c' t& b5 e( U. E NULL, 1 L6 N& s4 R, J* x, s3 h &ei,+ N. B/ P( k# T6 m
&uiErr);. A4 O7 l5 x3 F# x' o
0 @) f' ]3 i5 ^" c2 g4 \ SysFreeString(topicStr);. E- f' x8 a" t5 m7 d' f
SysFreeString(itemStr); 4 e- @4 H. A1 C SysFreeString(valueStr); 4 I6 `- f- [5 _* ^0 O1 U% t K" T, e( e# R5 K: O
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???9 Y8 X$ P! g' h8 W5 ~
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 F2 S' P* M6 V3 B* P . H7 z$ W* C1 y8 T% K # e5 d" ^2 ~4 w; ^2.这是request的程序 ~' w: V( e' ]& b7 E// Request a value from Extend * R% L0 W+ t% m3 f% ^ j L" w//, k0 e/ c6 _$ r6 s4 b/ B, M8 [
// Initialize the variant that will hold the BSTR. Set the variant's & G4 a$ V! X1 _8 e' I// type flag to indicate the fact that this variant holds a BSTR. Place the 4 ?& R, G1 L$ Y: T6 X// BSTR into the variant structure.) A: k& }$ i2 i7 ^
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 | e7 N2 W7 z / \/ p8 ]" J5 |9 s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / D% `$ L4 A# u" P! Q0 R! G VariantInit(&requestVariant[0]); $ E! P# R: g }# l
requestVariant[0].vt = VT_BSTR;7 V% m- y' C( G6 c2 a
requestVariant[0].bstrVal = itemStr; 6 J/ ~: e# d7 @ 8 E: Y* R7 A# N, e topicStr = SysAllocString((WCHAR *) L"system");: A! w6 i$ `& D' B: m+ x
VariantInit(&requestVariant[1]); 2 @# \0 B. A- t requestVariant[1].vt = VT_BSTR;. c- K! v8 }5 J* M3 b3 k
requestVariant[1].bstrVal = topicStr;0 L7 J2 u1 M5 n4 l# ]
1 |% R8 \! [* H// Set the DISPPARAMS structure that holds the variant. + R: n1 @1 V. n9 C) d+ q' z' ~2 P$ r
dp2.rgvarg = requestVariant;2 A+ G& M y7 E5 b6 r$ k, t0 p
dp2.cArgs = 2;" x$ T- a& A9 s5 w
dp2.rgdispidNamedArgs = NULL; , ?( Y2 b. ?, Q" e dp2.cNamedArgs = 0;4 K4 O9 d' N( w4 ~: Y# `
! d. L n! m. w) n' [/ y var.vt = VT_EMPTY;* L, Y; U+ ?- {* z
2 O9 t+ d# {5 u% p// Call IDispatch::Invoke() ; p# R5 ]6 [( {6 q7 G# j: w+ Y' [) r; L& K: P, W) T
hr = m_pDisp->Invoke( . ^. ?- N: W# u: d9 f+ m1 O& I b requestID, + ]5 s0 V/ ~% y+ f6 Q3 w/ i# { IID_NULL,/ z% b- ?9 L' b
LOCALE_SYSTEM_DEFAULT,: K: C# Q$ H) X" ?. z
DISPATCH_METHOD,3 F1 m# i7 ]. `0 C+ ~7 O
&dp2,! d! J5 W; \3 p% v# ?! N
&var,/ _ k( ^% F+ S1 G+ t
&ei, : i* B2 \8 o1 D# `. A) H1 b &uiErr); e3 G' Y0 f" N
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SysFreeString(topicStr);8 b& ~$ ]+ l& |8 h# [, c
SysFreeString(itemStr); 7 o, B1 I" [# w' |+ L7 h$ l请问该程序是获得extend里面的哪个值? ( r) Z8 w& @, |1 ], m1 G$ \& r0 d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????