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:! o# K9 ]8 N- `* h g: @
Name = (WCHAR *) L"Poke"; 2 D3 V& x. Y' p 1 F1 h3 k y/ T: A2 `" m hr = m_pDisp->GetIDsOfNames (4 c6 u! c2 Y3 }( H2 G) H* e4 w9 |5 F
IID_NULL, // reserved ) K) n0 E# v5 j: _7 W4 s6 p &Name, // Array of names to get IDs for9 A) a L/ G1 M ^! y8 H- R
1, // # of names in the array * y S; s6 B! W. ^( r" e LOCALE_SYSTEM_DEFAULT, // System locale ( t# m3 m( ]/ o &pokeID); // Array of IDs to fill on output ( s$ D' Y5 I: K 9 u9 N) ^2 J4 o$ s/ I1 E" H0 F
if (hr)9 M- P0 p- \, X7 I8 k
{9 N1 g$ `7 O( N
MessageBox ("Get Poke Unsuccessful"); + `3 Q, }$ i3 G: b) T return;; _) G3 Q7 x, H+ W1 ^, S
}0 ?1 y# i8 g" ~: _% ?' O/ Q8 c. r
( ?( N, b- y: }6 z7 l1 \" y/**************************传递数据给extend**************************************/) ^2 h: Z- T' i7 s& A9 p4 ` a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 Q1 c% u- E, A* ~6 ` + q* ]& q8 p0 j
valueStr = SysAllocString((WCHAR *) L"1232");& B/ }1 F4 r/ P- V; ~& t; T$ Y, W
VariantInit(&pokeVariant[0]); / u8 g! i3 H: f1 s
pokeVariant[0].vt = VT_BSTR;* O+ _: C$ ^3 Y( m
pokeVariant[0].bstrVal = valueStr;: ]& M2 E; n9 f2 g
+ ~2 J& D' Z# z( E& x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : y0 W) @) Q9 z' J; ^ VariantInit(&pokeVariant[1]); 6 U2 [+ Z# ]& B$ Q- ?& U pokeVariant[1].vt = VT_BSTR; / X* q8 P$ n% j; g- M pokeVariant[1].bstrVal = itemStr; 7 M% ]( o' X. j: A3 i - ?& p& U, X* u z topicStr = SysAllocString((WCHAR *) L"system"); : X0 Z ^9 ~- f VariantInit(&pokeVariant[2]); " a, H* v2 i) A$ p% d8 S" D pokeVariant[2].vt = VT_BSTR;: B7 w7 |4 K9 N# {: e
pokeVariant[2].bstrVal = topicStr; ' }& ]; c* w+ M9 n/ N: i; K% t5 `+ r9 k5 v7 {+ x# m" w, v
// Set the DISPPARAMS structure that holds the variant. $ l& N# H: s# Z, F4 p( X$ C9 e6 ~( U G3 o6 t# _# G" X0 m
dp.rgvarg = pokeVariant;! T4 `1 D7 U; T; j9 ~) C, s
dp.cArgs = 3; / z3 v2 l6 S: b: {5 S+ K5 b6 v dp.rgdispidNamedArgs = NULL; ) c7 t# s- ^- h/ x dp.cNamedArgs = 0;# P3 a" }; L( T: U7 `
; @! F; N4 I/ U0 o// Call IDispatch::Invoke() 5 B, O1 ` v3 C$ d' ^ ! b, H9 H% Z6 t, t% J0 E hr = m_pDisp->Invoke(& w3 @) ]1 g. p2 d
pokeID, $ A- H/ q/ M$ e' ^ IID_NULL,, e9 |4 k) C% e6 `- }
LOCALE_SYSTEM_DEFAULT,1 Y Q2 \7 f9 ~, i+ ^% Z, |
DISPATCH_METHOD, 5 c% K# w$ m0 \' k" @/ R &dp, : b+ N& {. |7 P* Y# O1 j NULL,8 y! U6 F2 u2 b" Z# C
&ei,- b/ O. W2 P* K
&uiErr); ( @& S+ m' i$ d3 O5 O9 K/ O + X( a6 J) M, h! d( u SysFreeString(topicStr);# X* H2 ?, y4 R& H
SysFreeString(itemStr); % M9 k, h9 R/ v4 i% e SysFreeString(valueStr); 3 _; i% ]8 k* `5 [, |* e i) O1 |# l: E+ q* s( R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??? ' b) V) W( _9 w8 v2 s$ \ y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 G7 q7 z) H* c. ~' B1 L
9 t. {9 P- y4 `4 `5 Q4 C2 Y+ ^3 N8 N8 l; s6 G e' t
2.这是request的程序 + i. r( a) |4 m5 X// Request a value from Extend , I3 F; J9 G5 n6 ~: x// 1 ]7 e. L$ y( m6 Q6 G" [// Initialize the variant that will hold the BSTR. Set the variant's% a# m8 l: K* J, @0 k/ l6 x
// type flag to indicate the fact that this variant holds a BSTR. Place the" Q9 B w6 `* c% x
// BSTR into the variant structure." ?; d" b; ~3 ]. C
! X$ h* C- k, |& W0 o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- M `; K& [2 @7 g4 s& Z
( L% j# G& E# }9 b4 _" ? [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ @' T5 R) `) _, h9 L
VariantInit(&requestVariant[0]); 0 E' V' C- E8 L' ?3 W5 m) P requestVariant[0].vt = VT_BSTR;. \+ T. z" |7 M/ k) g
requestVariant[0].bstrVal = itemStr;0 J- \2 o, o& K/ O7 J" g
8 @' ^; G, \) p t, H& u topicStr = SysAllocString((WCHAR *) L"system");* H- X0 I# w( o7 I* t' X
VariantInit(&requestVariant[1]); + \0 B( j0 @& ^$ h
requestVariant[1].vt = VT_BSTR;+ J7 R, w3 x- f! ~- j( K; p
requestVariant[1].bstrVal = topicStr; / d# K) [# c, j8 E7 P* e + ?1 W$ {( U1 |. f// Set the DISPPARAMS structure that holds the variant. J; g' s; |' W7 Y
5 K6 ~1 w: R4 \5 H5 I; h dp2.rgvarg = requestVariant; " \7 t0 B; j) f6 T dp2.cArgs = 2; # u* u4 b1 O: }& r6 }+ z dp2.rgdispidNamedArgs = NULL;) A+ _ E0 ^3 t) E- T" B
dp2.cNamedArgs = 0; 1 z- a% x! q; ^' {$ O' Z. z( Z8 L4 Z* y* M1 F% |
var.vt = VT_EMPTY;' a8 C8 \+ D7 X, v6 M" m a
6 H) U1 N& o: U4 t' N2 {2 T// Call IDispatch::Invoke() $ G" C, ~- w9 N6 [" B; X* G, |1 p, c L8 k/ J
hr = m_pDisp->Invoke(! v" v6 [ n$ J% h/ r+ p5 E% h; X
requestID, : f9 \/ x1 w& D7 s4 z- d1 W) P- } IID_NULL, N5 t# y; d6 D- C' T W/ A7 p LOCALE_SYSTEM_DEFAULT, . ]# M/ N/ z3 f% K- I DISPATCH_METHOD,# ?; @2 N7 F% Y$ S* Z: k9 S5 b
&dp2,) y4 }3 k* R7 z/ K9 q7 F7 E
&var,; s# x" ^ o k* o# ^ x3 V
&ei, 8 ]% H- l M! E0 X! d &uiErr); H( W, c; `( o8 @' I+ J) w
b( ^7 e' X% k$ E* G1 i. i" y SysFreeString(topicStr); : w2 W8 K8 w: I! U$ W0 E SysFreeString(itemStr);2 T+ l! e- z% P6 h3 {
请问该程序是获得extend里面的哪个值?% y3 C/ w/ U8 A
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????