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: 8 {( I/ s1 J. ?+ ^* @: J, G- GName = (WCHAR *) L"Poke";$ n( T2 B% Q, g, |' B: R9 W
8 U& x" p) u# R/ J5 l hr = m_pDisp->GetIDsOfNames ( R2 T( L4 d- s) T G. a# ^* @
IID_NULL, // reserved l0 Q/ s6 \& C &Name, // Array of names to get IDs for' }1 u" F4 @) W5 p
1, // # of names in the array 4 H' g X) m& n$ [$ q# F! x9 C LOCALE_SYSTEM_DEFAULT, // System locale 5 t+ E2 P, F; Q0 Y, g; I9 l+ z &pokeID); // Array of IDs to fill on output% R9 @; J [* t h' w% z5 s
$ \3 y2 _1 i( e( ` if (hr)3 T: B7 n o5 O% d1 m0 \
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MessageBox ("Get Poke Unsuccessful");7 l% W' J' U( M2 I% ]. s# v
return;% h2 a# K/ w* d3 z- B, @* B
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* l: r; b4 d* J1 F0 y. n/**************************传递数据给extend**************************************/ ; V9 M5 ^( j! E/ E2 v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) g- v, b7 w0 G( a( O( [ 6 R" c6 ]& y6 m- k; R+ c
valueStr = SysAllocString((WCHAR *) L"1232");: `/ C1 S4 M4 ^
VariantInit(&pokeVariant[0]); ) k5 `: m, t( v9 v l, ?; ^6 Y
pokeVariant[0].vt = VT_BSTR;3 B+ ?0 v. u9 G
pokeVariant[0].bstrVal = valueStr;0 H, g! h$ ?$ ^5 N I& `( F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " ^8 b8 e+ Q1 ]: u VariantInit(&pokeVariant[1]); ) }7 T: }/ X( P pokeVariant[1].vt = VT_BSTR; Q5 H" L/ d, _
pokeVariant[1].bstrVal = itemStr;9 X" v" U/ |8 ^( k3 i! D. |4 a- m: u
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topicStr = SysAllocString((WCHAR *) L"system"); # F" H7 G# o( }- C VariantInit(&pokeVariant[2]); : C& t+ O/ D2 I1 j
pokeVariant[2].vt = VT_BSTR;! e/ w8 d7 m: \. x5 ~: {$ T
pokeVariant[2].bstrVal = topicStr; 4 F, ]2 c8 C8 a( A 1 X# B* A1 h+ c, n// Set the DISPPARAMS structure that holds the variant.7 A# x+ r4 R$ @3 z' }5 j
5 @2 E* R3 i8 a dp.rgvarg = pokeVariant;' W* ?9 |1 K- ^- p! |6 U& u5 s \
dp.cArgs = 3; B8 R7 W5 x1 h. c" L7 w- G! y dp.rgdispidNamedArgs = NULL;2 g; x+ G1 y8 f; n8 m
dp.cNamedArgs = 0; ' Q& X& n& K; g: b8 s & x7 J9 U8 _$ s+ C! ~) |// Call IDispatch::Invoke() , _9 S" \& t% `: ]/ e 0 t/ Q& x9 X( x3 P/ p/ d hr = m_pDisp->Invoke( 1 h; T3 u8 \& I+ Q pokeID, X K+ _! K, ~: d
IID_NULL, 4 e8 h; Q% \- [0 n6 t LOCALE_SYSTEM_DEFAULT, 8 u' Q4 D1 V, k8 g DISPATCH_METHOD," u4 N# u7 x. S: M
&dp,- o5 L$ ?8 r/ X/ D% A' T7 C
NULL, % L& v! e* x5 R &ei, $ M# [; ?0 a; q6 l# r1 U7 S &uiErr);) X; s4 P' @5 B+ Z& D% P+ J
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SysFreeString(topicStr);* V; E' Q+ A: v9 a n/ y5 a5 m
SysFreeString(itemStr);. q0 `7 _$ r6 Z- R' o J
SysFreeString(valueStr);# E" e4 ^# ]/ ?. j
" y d! N2 v, W; F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 N. M0 x8 g5 i! I7 y0 d
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????+ A( [' d+ C. N
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2.这是request的程序 ) L$ {, i1 S# T) L8 W# m// Request a value from Extend U$ H! Q" |7 Y" @4 [# Z//9 q2 W, o3 [: l8 ^& M
// Initialize the variant that will hold the BSTR. Set the variant's8 s/ r! Q5 u% }1 f4 _% }9 T* W1 a, Y% D% F
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 R% F" R/ J/ o' V& m& I" m+ T// BSTR into the variant structure.# P; ?8 \1 C/ @* q5 O
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % @; N, r3 h/ E3 b7 y- d ' o' b" M1 y5 H( i/ o% l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- b" Z1 N+ y, J9 y# Q
VariantInit(&requestVariant[0]); 2 S9 C5 S$ d/ J+ N5 Q
requestVariant[0].vt = VT_BSTR; 2 K2 V# P3 T9 U; b- b7 a6 F1 _& K requestVariant[0].bstrVal = itemStr;8 }4 [; F0 D2 j* ^
2 F& w* ]2 P* B) ~! Q topicStr = SysAllocString((WCHAR *) L"system"); : f$ |6 a& K4 H% x6 Q ] VariantInit(&requestVariant[1]); 9 Z+ ~3 {* {' B& z8 r2 u requestVariant[1].vt = VT_BSTR;1 e8 h* J8 J7 T# q' m0 [; n# u
requestVariant[1].bstrVal = topicStr; 5 F6 [$ u% S) _ P C1 B/ B% f* t* r y1 F// Set the DISPPARAMS structure that holds the variant. & |3 L# L- o* G' G& _7 j8 {/ u7 I' ?6 v" y+ T/ P
dp2.rgvarg = requestVariant; # M0 g$ `8 w, U7 q dp2.cArgs = 2; 6 `3 q" t$ l U& V: `" h$ S dp2.rgdispidNamedArgs = NULL;+ F5 X# {2 Q. P9 ^- O
dp2.cNamedArgs = 0; ! B7 p0 X$ |$ m3 Y |1 y . @, C( G, e/ w5 ` var.vt = VT_EMPTY;: S6 y$ w, r8 J* a) Q- r) C4 ^
4 h6 j/ X6 g* ~: A% D/ |7 D2 j// Call IDispatch::Invoke() 4 p: S5 E G) C ! y& n. [, Y) u( v hr = m_pDisp->Invoke( ( Y2 q: I# N( u0 Y" g. | requestID, 9 a! K3 T1 T( _; O+ r5 X& Z, z IID_NULL, % c; {! E! X7 `( p Q8 s LOCALE_SYSTEM_DEFAULT,( B: i0 [3 f) L e6 x' u* A% i
DISPATCH_METHOD,% `. t( u8 k+ T
&dp2,+ Z' h- L/ U6 f3 n2 _, p! ^" x
&var, ]( k. M+ K% _ V/ I) e8 Y( ^
&ei,4 O. f* s2 `/ p( o) U
&uiErr);4 O: z. z% A& W9 u& Q. D