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:0 z. Z& K( h- m* E
Name = (WCHAR *) L"Poke"; / V! a8 S, } Z( x, P) t & @; ]+ X- }8 P" T" v9 n) N& u
hr = m_pDisp->GetIDsOfNames ( 6 r( a8 k, N& A% ]/ k IID_NULL, // reserved 3 ^' N0 F8 l. p( n( R# n0 J" g &Name, // Array of names to get IDs for: M1 ~0 k3 @( D/ L* c
1, // # of names in the array. v- u& g: \- k6 t& D2 T
LOCALE_SYSTEM_DEFAULT, // System locale # n. Z0 {. _ d+ I. x1 @ &pokeID); // Array of IDs to fill on output . R0 _; g4 A% P8 _& p ( o0 f/ U$ y1 D9 ]3 X9 u- ]
if (hr)9 v. N- J3 u6 z+ k$ Q1 F T
{; Z! u: `0 `# L
MessageBox ("Get Poke Unsuccessful");5 T3 e" f2 R& m) J" F
return; ) x3 G! V5 X' C& G }& e) C; i S. c
! X: z% x) K2 O8 a5 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ _; s* ?& R6 S/ G$ Q
VariantInit(&pokeVariant[1]); 3 F, {" ~: v* B) [1 h
pokeVariant[1].vt = VT_BSTR; % E8 v- h0 q. e5 }; J- O pokeVariant[1].bstrVal = itemStr;% s6 b+ g; H% Y M3 T
$ K3 z) _ z8 x3 r topicStr = SysAllocString((WCHAR *) L"system");1 r4 P2 ^' h6 P- n, k0 ^- e% d
VariantInit(&pokeVariant[2]); ! B F- L6 u5 k: t5 K
pokeVariant[2].vt = VT_BSTR; ' Y0 i0 e/ Z* i# W- F- o0 f pokeVariant[2].bstrVal = topicStr; 5 A# ^: ~) [0 P& ^) _0 n ; L/ Z# O3 {$ N& ]3 p// Set the DISPPARAMS structure that holds the variant.( {" w$ P8 U2 S; i
. \" ]5 O7 n$ T5 w# j* @) e1 L dp.rgvarg = pokeVariant;$ @( ~/ T9 M' L& i0 o3 S7 C
dp.cArgs = 3;+ s' O4 `4 e5 H% ?& n
dp.rgdispidNamedArgs = NULL;$ l/ b7 a+ U) T* [8 @0 e
dp.cNamedArgs = 0; % d" Y" _# n K$ G, j ! |; m0 ? D( Y- J// Call IDispatch::Invoke() 5 u. G1 ]# I* R/ D& l: ]1 \0 Y ]; o" a R9 V
hr = m_pDisp->Invoke(+ S: v& g |7 n8 P8 ]: _
pokeID,4 Q( Q$ e/ g6 _! M# J! q
IID_NULL,, O z W2 g+ R o
LOCALE_SYSTEM_DEFAULT, ) S. W% ]8 J! ]1 Q0 c DISPATCH_METHOD, 5 ]2 w6 m1 h) T6 G, r" U# O1 S &dp, : M6 }7 B( m6 J) w8 P" t5 o* I NULL, % D, j$ c) y; c/ X2 g7 T+ z& v &ei, * D. z; X- S$ U+ ]9 b &uiErr); 8 ~0 v- f9 J/ L) P s3 T* L/ f/ A' y! L0 f2 i9 e
SysFreeString(topicStr); + M6 c. i6 G$ R: R# T: ?/ W SysFreeString(itemStr);6 D- Z$ O1 M+ v. y
SysFreeString(valueStr); % s8 a/ C: a: l B$ _8 f7 }; [' l1 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???7 Z. v) J" ^2 Q6 L: z' o# x$ L" 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???? 1 m3 D; S1 f, }3 K& z' j6 u9 H2 Q1 b8 n5 `* c. C
! ?6 [ a7 Q" S" [2.这是request的程序! C2 u- b$ |/ n* L+ N
// Request a value from Extend t3 b3 p5 A; M, X//8 ]/ M C% ^. G- I9 R$ n n
// Initialize the variant that will hold the BSTR. Set the variant's9 J" j/ G/ ^) W0 A. G* f% m
// type flag to indicate the fact that this variant holds a BSTR. Place the 7 v3 T* x( j/ X/ o, f// BSTR into the variant structure. $ v f5 a' G1 \" o, |8 n- I) _, p9 `% y. M% c/ l9 N4 R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , j6 U4 f4 z; B. A' @1 Y 0 N1 s( m* Y [7 a8 P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ?3 _0 f7 K! M4 [% @
VariantInit(&requestVariant[0]); / b$ Q) t1 v/ p: K0 L: g9 {4 J
requestVariant[0].vt = VT_BSTR;. S2 J5 q. q1 M' i6 q+ v
requestVariant[0].bstrVal = itemStr;3 Q0 W. W3 V" J
! F# m2 I$ N: J8 f( u topicStr = SysAllocString((WCHAR *) L"system"); 8 \9 c6 g2 P4 {6 f VariantInit(&requestVariant[1]); & ]' g7 I X* t$ l requestVariant[1].vt = VT_BSTR; 7 \' U A$ x. p- s. w! E6 S( H' h requestVariant[1].bstrVal = topicStr; 1 g$ y7 l7 z5 K; |- z! k$ q; ?1 T
// Set the DISPPARAMS structure that holds the variant.4 h* L/ e7 h7 J7 _: {( {
1 {& Q2 Y- s" c2 j- ^
dp2.rgvarg = requestVariant; 0 }. `5 I: L- W$ {2 ^ dp2.cArgs = 2; $ z& B& _0 A1 r dp2.rgdispidNamedArgs = NULL;+ m% X/ M, e. Q9 }) W; |# v( i
dp2.cNamedArgs = 0;( _2 Z2 f4 @0 H( Q1 Z1 O
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var.vt = VT_EMPTY; 3 @; a" f6 R0 ]( r; G; R# m7 y R " V" K! }( T4 J/ w3 d! M N// Call IDispatch::Invoke() ! p2 t/ U% a7 \) y6 }" A+ E, y- s* x" }% e
hr = m_pDisp->Invoke( T7 i' J* K* ^ requestID,4 M" Z& E# J( e% r! p! D
IID_NULL,. ^: N$ t) A5 B/ U* H
LOCALE_SYSTEM_DEFAULT, # o% o* g g! U' ^7 T$ S W DISPATCH_METHOD, + r' p+ c2 f$ s5 ?) [. C5 l5 @ &dp2, - I* m# G: g. I1 F' m* O &var, 9 S1 p5 B w* W9 F2 I4 G! [ &ei,' t& Y5 K( C b3 o0 m
&uiErr); ' \0 e4 B1 h0 a9 S8 ?; k* ^# \( F5 f! N4 n9 U9 ]3 g9 j/ F; w( y
SysFreeString(topicStr); 2 N& c. C: C$ {" h3 J3 n0 } m; V SysFreeString(itemStr);: Q9 O, l5 h S8 L' g- L3 U. F; U9 |
请问该程序是获得extend里面的哪个值? u! J) H8 x9 |. o
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????