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:& }( P, u5 r* |8 x+ }; F+ [
Name = (WCHAR *) L"Poke"; 7 J3 w, Z3 O. W0 m. l2 @" i6 R0 c ! {% @/ a6 s; b% F3 m hr = m_pDisp->GetIDsOfNames ( 6 A/ Q z; U& [8 x3 y IID_NULL, // reserved; O; B/ r9 n" n) d) Q! u( V* ^
&Name, // Array of names to get IDs for4 A7 C2 l' N. M1 T
1, // # of names in the array : T3 \1 E, S( x" Y9 Q, y LOCALE_SYSTEM_DEFAULT, // System locale! |# p1 F* z# }# B' \+ P. M0 z
&pokeID); // Array of IDs to fill on output : [/ @& c- p* _. z# ]5 i 3 T- B0 \! l% u4 m1 v
if (hr)" u/ m' m' t! j' Q5 K9 Y* k
{: S o3 A2 K5 D# Z6 p( z8 z
MessageBox ("Get Poke Unsuccessful"); 3 X; F. p |8 {5 y+ Z# B return; + n- D. J' Y9 S* w; I( V }3 l$ y: ^' g2 R1 ~- G
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/**************************传递数据给extend**************************************/ " B, J7 q" Y3 s* O M+ U; h# M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ ~9 l: p9 A& q8 T9 ~1 j: M 8 I0 f; `4 x! K8 [
valueStr = SysAllocString((WCHAR *) L"1232");2 l5 P! H" F* P+ I, @
VariantInit(&pokeVariant[0]); 2 ~0 ]% ?9 e& j pokeVariant[0].vt = VT_BSTR;7 q/ c9 d, u+ t* Q& b3 f
pokeVariant[0].bstrVal = valueStr;! R1 [* t y+ k1 b
, `. {0 D, }. i+ P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 W; L# g8 _/ [+ d. ~! j
VariantInit(&pokeVariant[1]); 8 ?/ |% Y# i" l6 j pokeVariant[1].vt = VT_BSTR; & L' Y0 I' @3 U. O: ]$ Y8 G# [+ t pokeVariant[1].bstrVal = itemStr; 8 d4 W/ e y: u* K( ] X* a" @) y5 o+ y0 e9 q: O' a
topicStr = SysAllocString((WCHAR *) L"system"); - v& T7 |3 v( W VariantInit(&pokeVariant[2]); : M/ m& E; w1 z+ g' p I& \ pokeVariant[2].vt = VT_BSTR; + w0 `- k2 c. J7 _, v pokeVariant[2].bstrVal = topicStr; $ j# T+ i1 e/ t & G ]$ w4 y7 L/ [// Set the DISPPARAMS structure that holds the variant.( Y; Q" i* u1 T% {1 X
7 W$ i% W5 U9 Y' A dp.rgvarg = pokeVariant;0 p; \. x0 O% y5 ~
dp.cArgs = 3; 8 _2 n4 a0 b6 C dp.rgdispidNamedArgs = NULL;, K, p+ y$ T& w G
dp.cNamedArgs = 0; , y$ k% U' }" H- U/ i - m; k A" d: [ K// Call IDispatch::Invoke()8 T$ J# s8 T5 N2 c) l8 k
9 R$ K' Z7 E; r hr = m_pDisp->Invoke( - [* E) R# {% L8 F: u pokeID,/ W" |# b. x" X+ I+ @' v6 A% S
IID_NULL, 8 q- P v% t/ g2 x1 `% w3 } LOCALE_SYSTEM_DEFAULT, & N0 Z( G D9 ^4 `5 ]% O4 k DISPATCH_METHOD, / p* C$ { ]. a( e e &dp,0 D- s6 r6 Y0 J
NULL,' w2 p W2 u; y9 z, A3 x
&ei, + O! T9 K1 E( S+ |* w; |: G* k) F &uiErr);% u# G$ |- z# c+ |2 d7 O6 |( v
, V8 U2 G# x' ?, d( {0 F! x SysFreeString(topicStr); 3 Q' i8 @* h0 L* V+ p# Z SysFreeString(itemStr); 8 K! J5 x# R/ [ SysFreeString(valueStr); * { s. K& f6 J- T' D0 A# ?1 R 6 _; w6 z( q' x1 P' S c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???* N$ h' A2 i% j; l2 q" Y& r- K
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????( P, E) ~% b# I7 q
& F" \, X) j/ e7 @: Z/ _0 T7 s - Z" }; {) U. p2 ~4 W# Z2.这是request的程序 % k% z, U C6 D, \. h7 v: h// Request a value from Extend9 I& j0 _/ i, e
// + F# e9 q$ N* N' a& o& G// Initialize the variant that will hold the BSTR. Set the variant's , o9 u: D) P' {// type flag to indicate the fact that this variant holds a BSTR. Place the 9 A$ h. C2 f# z/ A0 o# K// BSTR into the variant structure. # w5 W1 B! F# C( O& V, w% S7 x- u$ B. c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) J2 K2 U @) V% g9 N- E% i 5 P) ?1 X) t% I8 {/ k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) q8 P% ~% Q, z7 [0 }! r4 c$ g* C
VariantInit(&requestVariant[0]); ' x% b4 U# ]: J7 w7 r requestVariant[0].vt = VT_BSTR; 6 c* M. S$ \! b& H requestVariant[0].bstrVal = itemStr;- `0 b2 f; E" A( T
" b7 x$ X: V8 C: s% K: \% B topicStr = SysAllocString((WCHAR *) L"system"); . H. N* c/ }* Q- c VariantInit(&requestVariant[1]); + ?- I2 @0 b& V! q5 y
requestVariant[1].vt = VT_BSTR;( T% X4 O7 r4 ~6 u/ p! n+ |5 \
requestVariant[1].bstrVal = topicStr;- D, o) `8 R3 }: t3 F
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// Set the DISPPARAMS structure that holds the variant.; |0 G+ Q7 ~5 J# r* o
) a( M2 {: ]" I2 K0 ]6 Q dp2.rgvarg = requestVariant;. z/ x C, E- M# ]9 {
dp2.cArgs = 2;/ ^6 T( ?5 V& B. a. I4 j J
dp2.rgdispidNamedArgs = NULL; % g0 O; `+ o \2 Q" ` dp2.cNamedArgs = 0; ( i+ b$ O0 ]) y/ X0 \ S : R7 ^7 q" H" ~& v var.vt = VT_EMPTY; 5 Y; @: Q, {; b+ |4 L 4 z. G1 K: s# z" j2 G; V6 Y2 z" T( i. j// Call IDispatch::Invoke()7 _9 A9 I1 {9 s* n, w% v
8 @* t4 ~3 o( I+ Q+ @/ {2 b( x
hr = m_pDisp->Invoke( ! |1 A0 h- X. U requestID,( Z( k" U9 m3 x/ R9 |# b
IID_NULL,# X$ ]+ h1 i1 W
LOCALE_SYSTEM_DEFAULT,& k L6 m! ?! U$ K
DISPATCH_METHOD, / A0 F0 w Y9 _5 w; J( j' M; E3 J &dp2, 8 k% |- U f7 B9 u7 n, F+ Z7 M, I &var,4 U& R6 B5 D' l' f
&ei,; ?/ B) N2 C0 [* ^4 T8 d
&uiErr); 7 L, }) O. N( @5 B0 ?: S/ `# V6 O8 g/ t0 N2 y T
SysFreeString(topicStr);3 X+ ?" c: z0 D9 u, `
SysFreeString(itemStr);9 ^" ^$ p+ ]$ a9 P; I# }( r
请问该程序是获得extend里面的哪个值?4 C( A- R. W7 P# V 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????