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:# @- D" k, w b; f( v
Name = (WCHAR *) L"Poke";8 ?: H" p, H2 X
, d. {! _3 D, Y q n hr = m_pDisp->GetIDsOfNames ( ! I9 I( A v% S7 o' N* w- U IID_NULL, // reserved 4 |' g7 a8 `$ k4 u &Name, // Array of names to get IDs for 3 Q4 a6 n9 n1 c 1, // # of names in the array$ A9 S; J" }5 |, m+ ~* c! c1 v
LOCALE_SYSTEM_DEFAULT, // System locale" A2 n/ _1 o4 q
&pokeID); // Array of IDs to fill on output' q6 G9 w4 g8 R4 Q$ Z) c" j) `& R
* ? Q: F- M. Z" |3 J8 p5 z' a) M
if (hr)* o' F! F! R& J q" R% }- R# Y
{ ! ?! D& L8 ~: Y% `+ T8 g MessageBox ("Get Poke Unsuccessful"); 2 b1 w& L% ~) L5 p* K! F return;" ^. r% e1 @( {2 p5 Z3 B# U
}. l0 g; G9 P' p+ T
0 ?2 F6 W, D9 Z/**************************传递数据给extend**************************************/: B8 D7 @" a) w2 A4 t6 O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ ~4 R. |1 z T. h9 r! b
. _& J, W# T0 y& y5 h0 `7 Q) c5 ?
valueStr = SysAllocString((WCHAR *) L"1232"); 9 P4 v, ~$ u& {' | p VariantInit(&pokeVariant[0]); . K. l/ K. P( o6 d: s3 C6 c5 G pokeVariant[0].vt = VT_BSTR;1 j- A) V1 Y3 N# j
pokeVariant[0].bstrVal = valueStr;( m6 t6 q. w( W
$ q1 @" P% i7 a) Y( X3 u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ R# n; u* T% ^7 c: j& ^
VariantInit(&pokeVariant[1]); - q7 r# _: \% w7 V
pokeVariant[1].vt = VT_BSTR;5 D3 L" D9 D# g2 J+ N
pokeVariant[1].bstrVal = itemStr; ! A/ o; l& f. u% f& D: R) v" i( a, T/ O, ~+ Z
topicStr = SysAllocString((WCHAR *) L"system");% K% n3 b4 e k6 n% v' G3 b
VariantInit(&pokeVariant[2]); : h* `& Y$ R" ^( b# `( F. f
pokeVariant[2].vt = VT_BSTR;, b6 I% q8 ?' Z) Y% C
pokeVariant[2].bstrVal = topicStr;! ~6 g: P/ g* R Y9 F4 l3 c1 O
g" X$ F/ q# H6 `$ ~& j// Set the DISPPARAMS structure that holds the variant.. y# {% ?# a# V, ^. S
6 G' d: W+ X% X2 @ y' J1 {7 D
dp.rgvarg = pokeVariant; 3 G: }3 B: M O3 T# m dp.cArgs = 3; 9 R9 `' }4 m) |1 n+ V* G, m) K dp.rgdispidNamedArgs = NULL; 1 }5 R7 v) i1 g% Q dp.cNamedArgs = 0;6 c$ x$ t6 P! y+ M
: K9 j3 @: Y; Z5 h: ]
// Call IDispatch::Invoke(), V" |* d4 N6 h4 X0 o: g
$ w8 c$ h0 O# y7 Z3 }! }' } hr = m_pDisp->Invoke( - J0 J7 |! w* v% z6 ` pokeID, ; y" @& q3 B5 j8 Y' f IID_NULL, # r; [: w. ~4 }% y+ w5 I4 ?% o LOCALE_SYSTEM_DEFAULT, p3 u7 F! q Z8 U! r2 `1 _ s
DISPATCH_METHOD, 5 [5 h3 k, Y$ _& s0 P &dp, 3 B' ~2 @3 H3 g5 A5 g, a. ] NULL, 9 k; y2 J% G' N# k- {9 w &ei, 9 z7 O" C1 W3 U0 r &uiErr);7 _2 T8 K, X/ {& r8 O6 j+ p# G
5 f; g% R: r( t" l* h& ?9 @
SysFreeString(topicStr);8 E+ D2 }; `7 b, T5 b
SysFreeString(itemStr);# u/ o# |* f% ~' B2 h. X0 }0 ^
SysFreeString(valueStr); 2 e0 X% ?- h' [* g0 o3 d. O# w) M" t0 h% O/ A8 O! X- S
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???( }4 I2 s0 a' q# ]% 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????* r" Q! |" ?* \5 b+ [
3 @! W/ q- i! F: d6 b
' k% J# ?2 \: G" `& z! X
2.这是request的程序& M' t6 n0 t* G3 D2 ^) w4 n
// Request a value from Extend 5 a, F; b7 F! [2 x// + |8 b2 N- Q! G; {: d// Initialize the variant that will hold the BSTR. Set the variant's# K6 o3 `# ^% m5 N, K8 S1 B' f
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 Y* k' j v- |1 L% N// BSTR into the variant structure. + c, H8 C1 [* ? L* Q , |/ |9 a c0 o$ L& R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' G. R7 X# C/ B* |8 F 3 F% {9 w5 f3 V& G2 B) E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ]- M$ ]( P& d4 d VariantInit(&requestVariant[0]); ; y5 m7 J' W" ^0 ?0 w" x' i; s8 k4 N requestVariant[0].vt = VT_BSTR; 5 \7 h i1 x* r8 q) ^ requestVariant[0].bstrVal = itemStr;0 s ~/ @- D' L7 p ~3 T- u" g
1 u9 q: V8 G- A5 e- |, u' Q- s! e
topicStr = SysAllocString((WCHAR *) L"system");1 X, p) |$ f2 i+ e- P7 P
VariantInit(&requestVariant[1]); % {, A: O$ ^" P G3 s requestVariant[1].vt = VT_BSTR; ! x7 u. m; r" h3 l requestVariant[1].bstrVal = topicStr;/ t9 r4 J2 @3 Z
. F7 \9 {& T( [8 F w// Set the DISPPARAMS structure that holds the variant." S2 J1 l, c, V/ p* |
8 d a% q' o5 O6 w
dp2.rgvarg = requestVariant;2 w \- g# R4 `* R$ S" Z! a' b
dp2.cArgs = 2; 0 E: `- l1 T' T& ?" r2 V0 P dp2.rgdispidNamedArgs = NULL; 1 v! l1 h( Z: ^! x. V" B dp2.cNamedArgs = 0; $ c/ A5 G! j+ W' x4 j9 C8 [ 0 z$ o4 L8 i# m var.vt = VT_EMPTY; 7 ]0 ^. F; T9 w 1 r% {$ R* m# v0 B6 j- H# Q// Call IDispatch::Invoke() 5 D6 u9 w# M2 {$ h& w5 F- x$ B 7 i0 k% |. h3 v; f% M hr = m_pDisp->Invoke(+ D5 j2 Q. N# S4 F; `
requestID,4 T6 ]. H# d1 f0 Z
IID_NULL,) o c# W. |8 l9 d$ L
LOCALE_SYSTEM_DEFAULT, + |. q, |# S1 J. S5 L' a) y DISPATCH_METHOD, 9 p8 J+ v8 G k4 T0 ]' m &dp2, # a! {% N6 R5 o. R) K1 b% y+ j \+ | &var, 8 k9 E, w! ], J- e+ X- B7 H &ei, % G }4 O* |4 C; N( d( m# x, l &uiErr);0 Q1 b% A @9 H9 K: x6 ]5 ]+ @
- \5 A6 \" q" M8 m, s' Q* c( ]
SysFreeString(topicStr); 4 a) o* |% y: {# j* @* T% g SysFreeString(itemStr); 1 n0 a" ?$ W/ F$ M9 n请问该程序是获得extend里面的哪个值? , c9 j2 L+ C1 q0 e& p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????