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:5 ~/ |5 P& p1 x8 ~9 } z5 o. N
Name = (WCHAR *) L"Poke";) u7 {+ Y e' e: N8 A
% W/ [! f1 G/ y- w hr = m_pDisp->GetIDsOfNames (, a9 F4 t( L c3 j4 R* z
IID_NULL, // reserved8 t4 Y% N' j) \* B! D# ]/ l
&Name, // Array of names to get IDs for - O( m7 R0 l8 w8 C/ A' u 1, // # of names in the array % s9 a! k2 w& w. w# J LOCALE_SYSTEM_DEFAULT, // System locale- g3 g0 _* _- A! a8 S8 A, w. R
&pokeID); // Array of IDs to fill on output # E1 Y, }; N* o : r R; z) j, C2 m! g8 e2 E$ _( Q/ q! y
if (hr)5 r5 b/ ?( v+ y: v" J) }
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MessageBox ("Get Poke Unsuccessful"); " X: P: {- x1 G: O return;3 [. I3 @! \+ G) \/ q" e) k4 I" m% d
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/**************************传递数据给extend**************************************/ 7 `! P" R" d. B0 k pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ D7 X( @8 P" j$ O/ W- M; m1 D2 j
+ ]# Z; a. `% t) a" U3 p valueStr = SysAllocString((WCHAR *) L"1232"); * M0 Y6 k& {, P5 T5 G( E/ f' D VariantInit(&pokeVariant[0]); ! g1 d) a. C2 n& S) p pokeVariant[0].vt = VT_BSTR; ) ]# K% L0 |7 d+ _# K pokeVariant[0].bstrVal = valueStr; 3 ?- j, F2 H' m4 @( Z$ N6 ? , G: z+ W5 U* D9 f ]7 U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); h/ m! o4 q- B* F6 Q& @
VariantInit(&pokeVariant[1]); 6 X" j; a. I8 J; ~ pokeVariant[1].vt = VT_BSTR; ) g6 ?6 l( m) Q' K2 Z3 t/ ~0 P pokeVariant[1].bstrVal = itemStr; - p X* l. o! ? r B 4 k$ V& q9 @8 ], N- H' u topicStr = SysAllocString((WCHAR *) L"system"); # o: C$ ?8 [/ Q) d3 F VariantInit(&pokeVariant[2]); 7 D7 o& O; [: |5 ]2 W1 ^ pokeVariant[2].vt = VT_BSTR;+ s* y* N$ w8 `& ]% z
pokeVariant[2].bstrVal = topicStr; % H6 i9 W+ Z3 O8 Q - K2 n+ E" I, J# g// Set the DISPPARAMS structure that holds the variant.9 V$ k8 r4 }# w. r8 o3 |# \ B
9 C8 Z* m4 e* T5 O0 B8 M dp.rgvarg = pokeVariant;0 ]6 ]# ], C& u
dp.cArgs = 3; 5 W% C; j7 t Q6 a" K ] dp.rgdispidNamedArgs = NULL;- r4 L' u% [0 |% k' s
dp.cNamedArgs = 0;/ f0 J* `7 k/ I2 M+ L4 a" v& Z" l
) t% A' l+ w1 l1 e2 h// Call IDispatch::Invoke() 8 Q9 v7 m4 Q- H' e" { , H3 f# S8 ?2 E" ^8 ?8 ~6 H5 S. f9 l hr = m_pDisp->Invoke( , ?& z0 Q! W) v, B% } pokeID,( c$ {3 f2 d9 C3 d% W* [
IID_NULL, & t1 D% o# q" {" Z2 P+ K* \/ v LOCALE_SYSTEM_DEFAULT,/ Q2 t2 f4 ~: `) |/ @2 _! N& {
DISPATCH_METHOD, , R* s1 @0 g, d0 @6 W7 i &dp,) k8 f( |4 x1 s U
NULL,& N4 {% f4 q- v6 [
&ei,/ J" W0 B& P2 }1 N$ }$ N2 B; _
&uiErr);: ]9 W M6 i# x
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SysFreeString(topicStr); * V7 f: P$ s, x9 s, s1 U! W% D SysFreeString(itemStr);/ g0 i4 n( ^( q* \% ?7 c7 p+ o9 g
SysFreeString(valueStr); . o/ M3 {* L; `4 | ' ^1 M% s# d* B. I- 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??? . q9 k+ ?; i. u9 V* z( 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????5 N1 x$ d" j7 g
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2.这是request的程序 . s5 C& p6 n& M) B5 E' m// Request a value from Extend ; z g1 ^, X& P5 H1 F8 u- k* A// . k% M5 G J* L// Initialize the variant that will hold the BSTR. Set the variant's 8 r1 G6 X$ u% v4 J: L- l3 }// type flag to indicate the fact that this variant holds a BSTR. Place the ' ]# _* e' b$ F" U$ t' ]! C// BSTR into the variant structure. 0 I) ~0 H7 k6 m4 b& _) G: C+ Q ) B" Z+ a! n& G' [% I/ W5 g- Q& q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; P3 y. `, Z' ]% _ ( R! m9 E+ ~0 Z( V! D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! \, n8 a* |$ i
VariantInit(&requestVariant[0]); 8 U8 {, O. G3 ] f; E
requestVariant[0].vt = VT_BSTR; & g: y9 R% v) l) K! H- s! ]' X requestVariant[0].bstrVal = itemStr; ) G4 j+ Y/ q p5 x 2 c' G" f8 B; X' N1 C; e% C topicStr = SysAllocString((WCHAR *) L"system");( ?2 m) A- S& ]
VariantInit(&requestVariant[1]); " I: }9 N' A2 F; w. \6 w) e
requestVariant[1].vt = VT_BSTR;& V+ w& Y Q' k* G* o% O- K) w
requestVariant[1].bstrVal = topicStr;1 F: ^0 o. o0 ~1 l# _
. d' o; `9 e9 x- U( Q0 K// Set the DISPPARAMS structure that holds the variant. : ]. i: i, B* p 0 m- M4 Z" u8 w$ W0 T4 \0 Q2 u dp2.rgvarg = requestVariant; ! ^ g% `/ X+ Y4 X. K' s' t J8 y7 | dp2.cArgs = 2; ' Z9 i( z/ Y1 } dp2.rgdispidNamedArgs = NULL;5 J3 l/ k6 s+ e
dp2.cNamedArgs = 0;* f' o' N* h' @$ I3 a
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var.vt = VT_EMPTY; . G. F) d5 l1 a# M% k" f! h' k 3 G- R/ Q6 v& _. H' |// Call IDispatch::Invoke() 5 J$ v9 t% W% u 5 I0 ?% u4 e+ ]5 h hr = m_pDisp->Invoke(4 M1 a. V1 G: u
requestID, * ?. z, I/ H n: a$ k" g IID_NULL, 3 U* m/ M5 k# X U# c; } LOCALE_SYSTEM_DEFAULT, 1 k% t# q8 s- ^6 P" Q3 H2 e3 C DISPATCH_METHOD,* \& g9 p* a- X* Z; A
&dp2, 6 G8 Z$ W# S5 q1 ^, e &var,; P. [6 d. A/ L3 N/ [
&ei, * F# U: f- v! H# E9 r6 j &uiErr); / s" s' V" u1 a4 G+ o4 F + |* s |8 y; N N1 _1 V. @ SysFreeString(topicStr); . t9 p0 g9 b) a; r SysFreeString(itemStr);, P( B4 ]9 r0 A2 l
请问该程序是获得extend里面的哪个值?9 c* H) _& m6 C4 X0 x% 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????