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:- T) }& u9 {; w7 G( _ d
Name = (WCHAR *) L"Poke";8 W ~& Y+ o# c) r
- J( W7 \5 B8 R3 k* B. D' W hr = m_pDisp->GetIDsOfNames ( 8 b/ k+ W( q8 L W1 _) E9 X IID_NULL, // reserved0 X( C% l/ Z& H" U3 s
&Name, // Array of names to get IDs for6 h! ~, E8 g* q$ K
1, // # of names in the array: `( [" p: R& ]8 H- [ N
LOCALE_SYSTEM_DEFAULT, // System locale $ z/ v A& ~/ s* K &pokeID); // Array of IDs to fill on output+ o: B% G* m f4 F2 @# p3 G: ?* n9 u8 n
u8 _3 P. r2 A' s. e if (hr) 2 d0 {# \- }( b4 ] _0 T9 Y {! H2 h4 _0 u& p# y% c- B, l! \5 ^
MessageBox ("Get Poke Unsuccessful"); 0 J) w9 G2 B# e1 b return; 6 q2 U& J# x, l. z1 f0 q6 ~ }' ~# i5 G2 ^+ G- F
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/**************************传递数据给extend**************************************/: Q4 T+ m+ o/ a# C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); w" l; P$ y- {: b1 W' F
# Y' B& X* Z# A+ b( b4 b/ T/ i5 X( e valueStr = SysAllocString((WCHAR *) L"1232");/ k7 m8 Q& r0 s3 y0 a& x- M
VariantInit(&pokeVariant[0]); / k( p" c) U$ h/ L( V- I
pokeVariant[0].vt = VT_BSTR; $ H* F: X3 V7 P% ~/ B L pokeVariant[0].bstrVal = valueStr;9 F4 j S O; p( m$ z$ M
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , p! s. f! d" U" A1 b2 ? p VariantInit(&pokeVariant[1]); 8 u# p- `% ^. t9 a' ~6 B
pokeVariant[1].vt = VT_BSTR;/ j6 R- L/ Q( u/ ]& [) ^
pokeVariant[1].bstrVal = itemStr;/ n2 G9 \; J, T
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topicStr = SysAllocString((WCHAR *) L"system");. z& T" `. e4 E; r! b7 Z. i7 ]4 i# B
VariantInit(&pokeVariant[2]); u+ K% N0 \" r: {& O) c
pokeVariant[2].vt = VT_BSTR; ; l9 K1 s% W& }- }9 w7 M+ N pokeVariant[2].bstrVal = topicStr; 1 V' ]- E ?' S& m% z* P5 \0 B/ m8 C% K" P
// Set the DISPPARAMS structure that holds the variant. ! J4 T' @2 X# n/ o" g " G, x: R3 R1 j: L dp.rgvarg = pokeVariant;: f% p: k- o. y9 ~, Z% l0 [: h" f
dp.cArgs = 3; ( ], N/ R& A" n dp.rgdispidNamedArgs = NULL; ' j+ j5 g) X9 _8 P3 F$ v dp.cNamedArgs = 0; ! D) j( W# }1 ?. `& Y/ B% S3 q; l; T. ?# f
// Call IDispatch::Invoke() 7 F! p+ @" F: \2 A9 F& F- m1 v9 w, n, v0 P! V
hr = m_pDisp->Invoke(6 i7 k6 [; D8 g! g6 R
pokeID,6 w% E" Q" ^* Y" r/ w& M7 E1 d
IID_NULL, ( j2 f0 ?2 `8 [! c, y+ p LOCALE_SYSTEM_DEFAULT,3 k u7 W' X( G
DISPATCH_METHOD,( Z* k& T+ H) W0 `: a5 I
&dp, & i5 p# [7 k6 d+ [2 Q: V# P NULL,9 C" _& u4 F& Y4 T6 O: N5 I. h- o
&ei,4 g3 k& V6 ~. q3 ?" g
&uiErr);) u5 J0 P$ p% r$ D- o2 i
# a: i; _' B* @ SysFreeString(topicStr); 9 Q. {6 P; `/ g c, D7 X+ q+ k& e SysFreeString(itemStr); & P& M6 |( }* n+ h& _8 n SysFreeString(valueStr); ; W7 F4 V+ b: z. G. x- k% p" u. ~, D. |2 W7 h9 K( j" A
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??? 9 O% j1 I9 g) s( {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 a# b6 s1 z9 [, m* b- c 8 q! U! J+ j& R7 s8 }8 | ' U6 G1 @5 z: j5 v" r; E; P& m. ^2.这是request的程序 ; v2 g+ p) @) ]' J n1 Y// Request a value from Extend$ C2 A" M4 c/ E: o6 D) |+ [9 D
//0 M# e6 g( B) H" _ ^% a
// Initialize the variant that will hold the BSTR. Set the variant's ' _- M8 I3 S: c( w+ c) g// type flag to indicate the fact that this variant holds a BSTR. Place the4 j( x- m9 W" U
// BSTR into the variant structure.+ Z( o+ ~8 _9 E3 U3 ?4 }: V' G
- q; F8 J' y0 _" d& K, P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 U& w2 I0 L2 x# ]0 a. ^/ p6 {1 E - }+ H7 F( q" G% d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. D% f( q2 j# d% X
VariantInit(&requestVariant[0]); , x( b# K$ B9 B5 ^6 A U requestVariant[0].vt = VT_BSTR;) c0 l0 u/ I4 W- h; Z) J9 j' F
requestVariant[0].bstrVal = itemStr;. e7 H( W/ V* b2 M& P
1 x7 W) r. I8 v) c% \ topicStr = SysAllocString((WCHAR *) L"system");% a, @& P/ r9 Q/ \$ \8 u/ ?8 b
VariantInit(&requestVariant[1]); 8 x/ G" {3 @! M% g# }3 r4 N. |
requestVariant[1].vt = VT_BSTR;% ~1 {' b+ V1 F2 Z
requestVariant[1].bstrVal = topicStr; ( W8 R! g7 [) F% ^/ r& ^ M* L$ S9 ^( p// Set the DISPPARAMS structure that holds the variant. 4 Y# {' ?/ x( ~1 u; m% O2 @: z 4 g- w) d" f% y! A dp2.rgvarg = requestVariant; / E& D d8 K' P! n, ~ dp2.cArgs = 2;$ t& ?8 @& l+ Z: M' i& J
dp2.rgdispidNamedArgs = NULL;2 |9 a1 K. h% f7 G& g, x3 Z
dp2.cNamedArgs = 0;; u9 e6 X7 Y j/ x
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var.vt = VT_EMPTY; , F$ _. [& @" Y; L0 e! F2 m2 C, m2 W1 } k0 {0 f8 n
// Call IDispatch::Invoke()0 j) p4 T; h; H" j9 F" |
) y) \$ u, P( f5 | hr = m_pDisp->Invoke( * X/ Y) m' z; Z' `0 v/ H6 P requestID, + r4 C/ A! q# t, e& F; y3 T* O IID_NULL,6 U* h5 h% y. m
LOCALE_SYSTEM_DEFAULT, . b2 F( P, O: N a6 ?, q2 x1 _ DISPATCH_METHOD, $ `5 n+ @# d* d t4 V: f &dp2, $ d: a1 R1 Y s- n0 [& J1 \ &var,* c+ b5 h6 l" l" T$ M
&ei, 4 v, x2 U5 C0 J( x6 @! z) T& p &uiErr); " Q8 x- ^8 p8 ~ ! @; O) n. U/ i0 J; c; T9 Q8 \1 b" w SysFreeString(topicStr);/ T) K: b7 c, ~- ^- c+ \
SysFreeString(itemStr);# v6 x, E B; i) }
请问该程序是获得extend里面的哪个值? 4 j3 J2 S: k9 X! x, _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????