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:( b, G6 f% |9 S; m; \& [/ M( e" h
Name = (WCHAR *) L"Poke"; . S6 x/ H9 Y7 f2 b: K( F ( T" g/ t" L+ @1 E- }+ f# d. ?; ] hr = m_pDisp->GetIDsOfNames ( " w# x4 X& ~, O# n( J* D IID_NULL, // reserved+ a, p7 h2 P. u. ]; [2 D
&Name, // Array of names to get IDs for & t' F' A9 ?' u6 _. Q* F/ B! @ 1, // # of names in the array 3 E0 p0 N6 u0 ] LOCALE_SYSTEM_DEFAULT, // System locale 7 _) L' B0 w0 _# b2 s &pokeID); // Array of IDs to fill on output9 m: P+ P: {9 a2 W, }: O( n$ p
2 X) O) v8 D" ~, t; b$ q/ _7 k if (hr)! ]# e8 Q7 w6 {. Q8 h
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MessageBox ("Get Poke Unsuccessful");' Z P0 B5 |- e3 O$ k* R
return;6 r. V3 n; y0 u I
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, N, w$ E( {) r) W! O valueStr = SysAllocString((WCHAR *) L"1232"); * `' L( L7 q: w) @ x E VariantInit(&pokeVariant[0]); ; W% ?- s! h6 q" Z! u. `. U pokeVariant[0].vt = VT_BSTR; ; ] @9 i2 S$ p6 n! v8 f8 t( ? pokeVariant[0].bstrVal = valueStr; ; U% H+ {9 [6 J" [7 }% |' O- F/ b) }# G6 y9 O0 }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 i! U$ F o9 \& C4 B VariantInit(&pokeVariant[1]); # U0 e9 L/ }+ e pokeVariant[1].vt = VT_BSTR; 0 G8 }/ S- P& @* a) M, w# k7 ? pokeVariant[1].bstrVal = itemStr;9 y5 c& j! W4 Y! @& A+ \2 x U
5 b% o0 ^7 P2 O8 T% y! q1 {
topicStr = SysAllocString((WCHAR *) L"system");6 U. I6 ]; \+ P, q3 i1 J! V9 d8 m
VariantInit(&pokeVariant[2]); + \' K( H+ G. y' b* i5 A M: Y
pokeVariant[2].vt = VT_BSTR; ( Q" M, Y) N4 r pokeVariant[2].bstrVal = topicStr;9 r& `1 V0 R/ p
- `; n' G9 ^, h// Set the DISPPARAMS structure that holds the variant. + L' O% A. h) a) ]/ ^ 2 L' c- v* ?, p) m2 v8 _8 ^ dp.rgvarg = pokeVariant;$ o; C# ?$ L- M+ @; R$ a/ E2 @5 s5 J
dp.cArgs = 3; - n3 D+ P, ~. m; S; I/ O dp.rgdispidNamedArgs = NULL; # [4 n+ N( ?9 N- W s; ~ dp.cNamedArgs = 0; 1 |% W$ W- b; g$ r- J9 o0 ?; X8 R5 Y& p# P( Q* f- K) C% H1 n7 y* d# a5 T
// Call IDispatch::Invoke()9 c. j4 I/ d8 t
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hr = m_pDisp->Invoke(9 c ], l5 L7 i6 ?% |' w0 z7 c
pokeID,/ z0 p; i% T5 t( w; N
IID_NULL,# |% F" ]1 s- j9 @ m9 J
LOCALE_SYSTEM_DEFAULT,9 R% o) a& ~3 I, f, V
DISPATCH_METHOD, % J Z7 `" m9 Y# ?! I3 K &dp, . T; ]+ i& t Z NULL,, x: R! t. \( J9 ]1 q. d
&ei, ' v$ Y: n- e6 n9 _# s* [. l &uiErr); ' t: U# F; r: w! m9 M( B " H2 M2 }/ A$ v+ U SysFreeString(topicStr);. R% |' ~1 G( m1 F+ [4 R7 D" R4 V
SysFreeString(itemStr);: t* I+ R. }6 d3 B
SysFreeString(valueStr); , \! m) c Y1 l) z: W: o" D G- |2 n
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???3 k/ ~- }0 F0 D. Q" r. L" L
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????$ d8 k5 L: x. W& \# c2 I! g8 S
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$ x) X: \$ \( _( @$ e( q2.这是request的程序% Y( a3 E- J6 X7 ~
// Request a value from Extend 8 }( T" R4 I5 E/ a3 u//6 T2 Q1 l0 C4 I( ^, F) F
// Initialize the variant that will hold the BSTR. Set the variant's7 @8 g* \8 w. L: b, f
// type flag to indicate the fact that this variant holds a BSTR. Place the , P1 w1 |7 p# W' _// BSTR into the variant structure.& Y# B9 L4 }/ D, r8 s2 T: y
& E: {3 N: X! g' i# E9 u% B& \7 H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + w5 H$ L: q. ?8 D 5 T' d* E- I' b% u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 `& w. K3 C' N& r" }
VariantInit(&requestVariant[0]); + Y, L0 O5 X, {5 l V requestVariant[0].vt = VT_BSTR; - Z: i8 ^3 g* w* n: P requestVariant[0].bstrVal = itemStr;- r+ f: S& v2 I8 O; r" j& B/ Y
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topicStr = SysAllocString((WCHAR *) L"system"); ( e0 U% w3 d3 f0 o VariantInit(&requestVariant[1]); 3 \0 n5 k+ U \. Q+ Z4 p requestVariant[1].vt = VT_BSTR;0 |5 M6 _$ V' C; r k& j
requestVariant[1].bstrVal = topicStr; , i( H5 H0 r8 a; d 6 s& u0 l# H1 C' l! w' T, q// Set the DISPPARAMS structure that holds the variant. ; B. j! u8 F- J" n4 m; K: H: Y) P, [- s% {; k) m
dp2.rgvarg = requestVariant; ! d% g+ I: x& D1 _, n" I: l* e dp2.cArgs = 2; ( P' ]% l( a0 J$ b) u8 o dp2.rgdispidNamedArgs = NULL; 8 H$ o# ?, q4 n m% V* z1 L dp2.cNamedArgs = 0; / ?4 a! I6 c8 {7 Z7 }! J X9 s8 m, J" ^% M! Q1 z
var.vt = VT_EMPTY;/ l: N+ a+ P& h/ y, U
5 r, S* b- Y+ s0 r; w1 D) ~& k// Call IDispatch::Invoke() 6 Z5 W5 | i" ~9 F6 h H; b7 g6 H( o hr = m_pDisp->Invoke(% {7 Q$ W0 d) T
requestID, 8 X! s2 Q- k: h+ `/ B: ~ IID_NULL,% _, O5 L& `; A9 z# k! ^
LOCALE_SYSTEM_DEFAULT, & W# X' H) h$ S n) v8 Y8 e DISPATCH_METHOD, , q8 |) p& d" G" x1 v' b4 h" a &dp2,) [5 J5 k% e- ^4 H. }4 S
&var, ! v3 h& J# r+ c* k) G &ei, 7 S6 w. P- o; i( B( w1 \7 A &uiErr); # q4 {. M. G! E* C# x c, k- h * X7 s1 I B. h( U# N8 t3 \$ U* I SysFreeString(topicStr);. C9 m7 I' Z1 t9 G$ W! ?& O2 ~
SysFreeString(itemStr);# P# ?: [1 M% j) b
请问该程序是获得extend里面的哪个值? , w7 Q8 J8 E9 C; ~# }5 p- L" `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????