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: * u: s' ]7 Z/ x1 z1 kName = (WCHAR *) L"Poke"; j6 N. `% G/ G% q% J" q! l: g
( O' Y' \; N/ r( L7 [ hr = m_pDisp->GetIDsOfNames (: E) _8 \& _! G* C
IID_NULL, // reserved1 P: w7 N7 L: j& ^4 w# n6 E
&Name, // Array of names to get IDs for) x- D" Q& C' q
1, // # of names in the array U* j6 q. V9 ?$ ?, d8 d
LOCALE_SYSTEM_DEFAULT, // System locale# Z% l* T" k* Y J2 t- C
&pokeID); // Array of IDs to fill on output' v: A8 t! Z& u# b6 u0 @' ^1 n' D9 X/ z
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if (hr) 0 _6 K' ?2 i1 Q9 M( V `: W; `, l { ) b/ D* A F: Y/ ^, v8 q$ { MessageBox ("Get Poke Unsuccessful"); 4 n$ n8 G$ Q' S: U return;8 v6 u( s% _2 }# C
} ) l- G5 g% u' T2 Q h$ @% X5 t, S1 C) a1 `1 F: l
/**************************传递数据给extend**************************************/, a' Y' g: Y- | z5 U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); d2 F; o4 d3 g
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valueStr = SysAllocString((WCHAR *) L"1232"); , ]9 K: S3 N2 z3 z# y* c8 [6 S VariantInit(&pokeVariant[0]); 4 o! p" s& v( \: t1 W4 g8 U/ ~
pokeVariant[0].vt = VT_BSTR; $ h3 d" o# H- }5 H; j! }; h pokeVariant[0].bstrVal = valueStr; , F. \' [/ B7 ^/ l# Q0 Q9 x2 R0 h# f1 ~$ Y2 ~5 t q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 v% z5 @" B" b% u4 A/ Q( |2 d8 j VariantInit(&pokeVariant[1]); : t+ m. \2 T! C+ o) G0 @- Q
pokeVariant[1].vt = VT_BSTR;3 S* h' y0 w( ]; B" i0 {
pokeVariant[1].bstrVal = itemStr;! _9 s8 J4 s( n3 |6 G# l8 ?
: ^. S1 a8 E1 e0 i% G! Q topicStr = SysAllocString((WCHAR *) L"system"); " n5 o8 M1 Q: l9 c1 Q2 x: _6 x VariantInit(&pokeVariant[2]); : m/ f1 K7 [7 w$ U) N
pokeVariant[2].vt = VT_BSTR;. f ~" W2 ]) ~/ n
pokeVariant[2].bstrVal = topicStr; - A$ F9 b$ T! Z/ L2 D8 T) o/ a: c1 O/ V v* B9 `' k1 L' X
// Set the DISPPARAMS structure that holds the variant. 5 ]2 @/ e# A+ \8 N3 _ s) m n8 C7 \ Z6 j) Q( g. ]6 D. n
dp.rgvarg = pokeVariant; " J9 \/ o2 E- ~/ M6 k7 w& O- ~& g dp.cArgs = 3; 9 K8 E( y2 X4 _0 k1 v+ X dp.rgdispidNamedArgs = NULL; # Z! s( g3 i- {2 ^" m1 n dp.cNamedArgs = 0; ( w6 L: v6 I" Z2 v0 l/ e+ M; b, ]0 K+ ]' d# x; S" k! v: M
// Call IDispatch::Invoke()2 ^7 ]# p, R2 A. t* U" \0 w
W9 ^5 x# R9 {
hr = m_pDisp->Invoke(+ Z/ C: a/ K" Y2 J1 ~( e3 L
pokeID, # v! O( N" B. d IID_NULL,+ I0 I9 Z3 p( }
LOCALE_SYSTEM_DEFAULT, ) E* i: C! u' b4 w DISPATCH_METHOD,% A7 i! p q( W: R9 k1 Y
&dp,2 r+ g' F) p, `: H
NULL, 5 t4 U) f$ B; l; }7 b, y* v &ei,8 I! Y' j2 g0 e
&uiErr);, ], l' X2 `6 p# L' ?/ Q
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SysFreeString(topicStr); ; r3 s' w a# |; L SysFreeString(itemStr);: L6 s& N- G) h+ M
SysFreeString(valueStr);- \- k5 f- N; H; M0 ^
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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??? - o) ]7 o* v0 L @6 A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????* s$ b4 a0 h2 v' E4 c8 F+ ^1 k
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1 p. V$ F- a9 M) F1 ?) `5 a2.这是request的程序9 D8 @# W9 m5 `1 O) Z# h0 G
// Request a value from Extend5 B0 Z$ {. X$ ]/ S& \
//9 I8 g+ ~$ w: Q' P" g6 Z$ ^
// Initialize the variant that will hold the BSTR. Set the variant's6 n0 O/ C, \' K* Z: M
// type flag to indicate the fact that this variant holds a BSTR. Place the - q) V: R4 Z' V, A// BSTR into the variant structure. 8 g- c" I+ F7 A1 Q, E" K/ d1 N" g' l
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - Q( m1 d5 t; D# ^ ! l+ F ~( i8 F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 V' a0 b% M: J" h0 b; g
VariantInit(&requestVariant[0]); 8 X" I( z" V2 |% U: o9 q) a
requestVariant[0].vt = VT_BSTR; 7 `. j2 C& Y" C% c requestVariant[0].bstrVal = itemStr;2 t" u* q3 s' S4 o# l
7 F4 j7 ]$ q- g8 _ topicStr = SysAllocString((WCHAR *) L"system");1 {( a6 U" B' P# }* X
VariantInit(&requestVariant[1]); 4 N3 G; F- G, ~ requestVariant[1].vt = VT_BSTR; & M) _ U6 G/ B- }- `3 Y requestVariant[1].bstrVal = topicStr;6 z/ G1 e( M7 R9 v
4 ~" D% J+ |/ z7 D2 o9 [% C1 W; U// Set the DISPPARAMS structure that holds the variant.& W- V$ U7 b0 r% Q5 t6 ]
% C% f1 ?: y2 L% M dp2.rgvarg = requestVariant; / i0 a% E0 T, w; P @1 `2 w: m dp2.cArgs = 2;) Q. o% W6 N; ^ B7 H$ O l& R; R. l
dp2.rgdispidNamedArgs = NULL; / A7 h- T5 d8 B+ c dp2.cNamedArgs = 0;! |4 }3 v$ ^; j
* H8 O* _7 f. ]% Q+ _- J& J7 |3 d) X var.vt = VT_EMPTY; , K. X+ b2 M0 \' _, t( T/ a: ^3 ?! r, g
// Call IDispatch::Invoke() . u7 g# w1 O4 R3 `9 Q1 E # u0 x4 z- b& d4 X2 l6 q hr = m_pDisp->Invoke( 4 g! f5 x$ o6 W% d8 J! m( B requestID,' p- M8 V& W( |
IID_NULL, / q' T1 v/ N4 L2 S! H LOCALE_SYSTEM_DEFAULT, $ }3 D4 F* L1 i' h" z DISPATCH_METHOD,2 \6 Q) C5 w# z; h* o6 C( I
&dp2, : }+ ]4 n. j2 |8 F7 F &var,1 ]9 {$ y) Z$ L' y# P4 s+ a- h
&ei,# C }( Q w4 j; ~5 C
&uiErr); 8 Q' h8 D' h2 I7 l: R f$ Q: o/ C' q r5 X [4 w5 M% S
SysFreeString(topicStr); : b9 m! @ W Z2 W SysFreeString(itemStr);' q* b' i$ p1 h, R. X
请问该程序是获得extend里面的哪个值? & y0 L$ }" H/ B `' ?8 C2 k9 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????