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:9 a9 h& a: M& H
Name = (WCHAR *) L"Poke";& W$ Y! j0 m$ P! ^ k$ G& v
0 ?9 _! e/ @- ^# F! g hr = m_pDisp->GetIDsOfNames ( & j2 I' A, x# i& F% o% P* x+ R# q IID_NULL, // reserved& r% K8 G1 V) ^; I
&Name, // Array of names to get IDs for! h: ~! [7 @# H
1, // # of names in the array, E4 p' J9 n0 z1 b1 Y. |8 p9 c
LOCALE_SYSTEM_DEFAULT, // System locale . v$ a a5 e) ]* j9 ~ &pokeID); // Array of IDs to fill on output # j: l. j" ]8 l5 K1 C9 J S! A! S [/ X - { S9 V: R0 {# r if (hr) 4 ^* S+ y/ m, a5 _: e) P { # W# J$ v" S& E. C* N MessageBox ("Get Poke Unsuccessful"); , M& Z" J; U/ C; R return;" a) p9 o( x7 l& @& J2 \
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/**************************传递数据给extend**************************************/ % Y7 _7 e0 j& j6 w3 z7 n+ v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ F1 E; g9 N; M
# o8 O4 t! v( _; @# i& v$ f valueStr = SysAllocString((WCHAR *) L"1232");+ Z+ v8 F6 f( N: y/ D
VariantInit(&pokeVariant[0]); 6 I: z' J; {- c7 R pokeVariant[0].vt = VT_BSTR; 9 u) x. S2 }) U6 ~0 V% W q% ~ pokeVariant[0].bstrVal = valueStr;+ D* O, f/ z! P& _6 b6 o' h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ T6 Z9 w* D1 q s VariantInit(&pokeVariant[1]); ( P G$ f! X' @ pokeVariant[1].vt = VT_BSTR;7 Y% w9 @9 Q! h. V- X
pokeVariant[1].bstrVal = itemStr;$ P" n6 a f. t G! K( S
% k# u9 e5 y. g9 r; H* ` topicStr = SysAllocString((WCHAR *) L"system");: y6 g4 T( f% p( t# a/ t
VariantInit(&pokeVariant[2]); ; c6 D" y+ l' i0 J8 W% x
pokeVariant[2].vt = VT_BSTR;7 X8 I/ ]9 J9 w# ?; Z
pokeVariant[2].bstrVal = topicStr; - g& f9 R+ H7 K: K% ~; W9 w1 J# ?8 Q/ [; H7 H/ h! J* ]/ ?+ ~ M
// Set the DISPPARAMS structure that holds the variant.; Y) ^! K9 u3 U+ N' K
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dp.rgvarg = pokeVariant;- B0 V9 C; l# X* k' r/ g4 z
dp.cArgs = 3;4 X9 F& m* K4 Q6 p
dp.rgdispidNamedArgs = NULL; 2 S; ~5 W a/ I) t9 u dp.cNamedArgs = 0; & c3 {* C2 _5 A- F8 r; C1 E1 D% R. |
// Call IDispatch::Invoke() / ?' {4 n s! I! d( u$ ^; x7 r( m) r9 v3 M A) `; q8 R: e
hr = m_pDisp->Invoke(8 c9 p; g: b: J2 D
pokeID,- u) O) ^0 e. W- W' G/ f( Y
IID_NULL,5 A" {- E4 E9 r
LOCALE_SYSTEM_DEFAULT,! K# h9 ]! ?+ ^+ w4 m0 r3 z
DISPATCH_METHOD, ) p2 m1 c3 e* H' W &dp, : k2 e6 [. T! V4 V% [# S" I NULL, 4 d5 g, D1 R) t4 y6 V( Z3 y. ] &ei,0 ~# X( f7 z4 A* D$ w, @
&uiErr);: S. i# p! ?* T, h5 T
" C! ~: U# k6 u& |' J% y8 k/ W SysFreeString(topicStr);- I/ L2 n+ T' {8 \8 p) Z3 C
SysFreeString(itemStr);( F2 N) M5 x9 r1 ]7 r
SysFreeString(valueStr); 0 v! q. k8 _& M, r/ d/ q _ : q) u9 m; |" _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???5 C+ ?8 P3 d. L1 Z5 F
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????8 |6 |$ k2 Z; {! j# q
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2.这是request的程序' x$ X2 _2 n9 i9 v! G7 M
// Request a value from Extend H/ J1 x) W7 K# _( J5 H
//( C3 E/ r6 s" y1 J! Z" ?9 p0 y
// Initialize the variant that will hold the BSTR. Set the variant's ' }7 m+ r+ }1 z* k// type flag to indicate the fact that this variant holds a BSTR. Place the 3 E. J2 @0 |' N" [// BSTR into the variant structure.; h- I! _0 H* L8 r) r# F3 {; ]2 ?; r
5 l/ }7 P' W" u- N# H; k% x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - ^2 Z2 j" J: K" q - ?5 ?( T9 T' H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 @) D7 b' P0 ?, X
VariantInit(&requestVariant[0]); 1 R* ~, s4 [: i" r8 n5 I$ N/ d
requestVariant[0].vt = VT_BSTR;1 x/ C- A# N5 A! L
requestVariant[0].bstrVal = itemStr; . v6 M" ~; t+ Y* v) v: n' h$ q: V+ q5 a8 i+ f
topicStr = SysAllocString((WCHAR *) L"system");; a' d) H" A, W7 O3 p9 S. }
VariantInit(&requestVariant[1]); / n/ z$ d; L H7 G+ H4 k4 M* ~ requestVariant[1].vt = VT_BSTR;; e' V/ y7 c$ g( F: i1 R
requestVariant[1].bstrVal = topicStr;' A( Z) I* _6 c: X, a; Q7 Q
3 O5 y1 ~; B* q// Set the DISPPARAMS structure that holds the variant., r9 r1 ]1 p3 \' R
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dp2.rgvarg = requestVariant; # H3 h+ @6 o, ^4 }- e* ~ dp2.cArgs = 2; L! Q3 o9 X* c dp2.rgdispidNamedArgs = NULL;+ n+ a# L2 t# E0 b6 R4 w7 R. b
dp2.cNamedArgs = 0;) H" b6 f' l3 w
; B# m9 x2 l$ q, L% N7 ?- D var.vt = VT_EMPTY;( R! O6 B. g/ ] S* J8 R
$ q# A0 r$ p! j. i+ Y9 }// Call IDispatch::Invoke()+ w5 f5 p) t" n: o% @2 P
* V v8 ]1 {, l6 C' G" X% B hr = m_pDisp->Invoke( 3 \; F0 y3 s5 d9 v$ {8 S9 j: S requestID, ; z! B! Z% P4 ~3 @, P0 w+ ` IID_NULL, 2 r( g4 z& W% K0 b* B" C LOCALE_SYSTEM_DEFAULT,+ x& G2 y: \! I) X- n
DISPATCH_METHOD, : Q j9 d" x( d- y/ O& c9 \ &dp2, , G w: u% n5 |" a &var,+ v v6 I0 `3 W8 p3 O2 |
&ei,0 k5 d2 }' f# S# i3 _: T7 t( W
&uiErr);% P4 T' Q3 T* y+ O% n" v
6 w8 ]/ Y; F# g# Z& R% u SysFreeString(topicStr);, }6 t5 `! r& ]) [% b
SysFreeString(itemStr);* h4 C7 u/ M1 N- z+ o& @, t! l2 B
请问该程序是获得extend里面的哪个值? 7 X# b# J4 Q1 c' p2 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????