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:7 n, N# e) l, [
Name = (WCHAR *) L"Poke"; ' U! a+ @! I) C2 c: n/ m# w ( q9 V4 e5 o6 ~* Z0 W7 O hr = m_pDisp->GetIDsOfNames ( 8 Y5 h7 ^1 y( f' }" _ IID_NULL, // reserved( g) b. x1 `4 c- L: u6 L+ B
&Name, // Array of names to get IDs for : W+ e$ Z" [) z* l q 1, // # of names in the array+ R2 i* H h( E7 h# ]% ^
LOCALE_SYSTEM_DEFAULT, // System locale $ K% H: Q5 U ]1 }: P &pokeID); // Array of IDs to fill on output& U8 `6 v& G& F e3 o. j
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if (hr) , t$ j) f: m" P* T { ' g( G& @# w, k# t% w MessageBox ("Get Poke Unsuccessful");; W- A9 F( J" o
return; 3 G4 A( G- @' ]/ T: } } 2 j& `7 }; l( n/ C- Y0 `( g/ W ! U5 G* [ y) J7 L; }/**************************传递数据给extend**************************************/ , c- m0 t( `' u7 q) s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# w( c" F) ?- M- h+ y
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valueStr = SysAllocString((WCHAR *) L"1232");) k* }6 ^+ _& Q, L' d! E" m
VariantInit(&pokeVariant[0]); 8 u6 Y2 P0 n9 b# z7 f; V$ w' | pokeVariant[0].vt = VT_BSTR; 3 f5 C4 [& j! k' t$ A/ ~: W U pokeVariant[0].bstrVal = valueStr; 6 K3 O3 a4 M( @, H7 f h7 R+ A/ O. O) q. x! R- J/ ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) `& _! x- M# ^
VariantInit(&pokeVariant[1]); 1 H7 t/ W+ _/ ~" c
pokeVariant[1].vt = VT_BSTR; 3 X; c' A( i$ f+ J4 K) n9 t pokeVariant[1].bstrVal = itemStr;1 ~/ F, X M) e+ m6 _
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topicStr = SysAllocString((WCHAR *) L"system");2 x2 s0 v" P! r2 D
VariantInit(&pokeVariant[2]); * U- W; z5 V6 {: R% A- w5 ^3 }$ u7 f L pokeVariant[2].vt = VT_BSTR;5 R% Q6 J9 W) _
pokeVariant[2].bstrVal = topicStr;: W7 N1 Q C' A2 z3 t
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// Set the DISPPARAMS structure that holds the variant. 3 G: ~) p# M# G) z / M/ W3 G- P$ @# `: F0 X dp.rgvarg = pokeVariant; x) c6 F+ ~" p; u. m, R6 p dp.cArgs = 3; # X2 U, N( V) J" h& X- h dp.rgdispidNamedArgs = NULL; 0 i& W! \8 G6 {2 M dp.cNamedArgs = 0;/ f1 _+ z/ k; P$ Z1 R0 p: a
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// Call IDispatch::Invoke()2 v$ p8 r8 Q* ~% R2 ~
0 W/ C0 i, Z7 n8 J: m hr = m_pDisp->Invoke(1 F. J8 V6 n* g# r, z
pokeID,4 g2 t% }+ k' V" e D+ \# `
IID_NULL,$ R" k4 s( Y9 z4 u
LOCALE_SYSTEM_DEFAULT,: J1 [1 d) J) b
DISPATCH_METHOD,' m' x7 h5 ?; P5 ^2 K
&dp,. D. ]. D4 A- u! A E
NULL,6 J: y& V% o7 j6 J+ E0 U4 L7 a" p
&ei,- s4 p2 f/ W: K
&uiErr); . Q5 `2 f+ J) O% V6 V# R- {6 ~9 w+ G" y: r2 i- L6 M2 A9 o
SysFreeString(topicStr);* C4 Q+ Z. t+ d7 T, b
SysFreeString(itemStr); 3 v7 B% j/ {1 F8 W, m; _6 D u SysFreeString(valueStr);( D7 d5 X4 c2 l, j- a
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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???" m+ j7 {0 H O& |1 Y( O5 ]. S# G
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????2 p& ~6 ?* Z3 A1 z& [
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2.这是request的程序 9 U# Z! e: m( D# O4 y) Q; s// Request a value from Extend# v% S1 u1 M' G6 O( V5 n3 E# B2 Z
//# m( [0 r7 i4 s# O8 o
// Initialize the variant that will hold the BSTR. Set the variant's ) f# @0 C, B( w( n' `+ l// type flag to indicate the fact that this variant holds a BSTR. Place the( E' G+ \3 I/ U. S8 K
// BSTR into the variant structure.& F9 _* U. y/ C, j7 e4 C% H
2 I- n v( F! ?9 J2 A8 G7 `" Z% l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' L# ?6 Z* D! A7 d4 S8 d ( S2 D t) Z2 }% D! y& p' T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ \ D& n" h5 D7 H
VariantInit(&requestVariant[0]); * W' y, e& Z0 S% [* P
requestVariant[0].vt = VT_BSTR; ; I3 W0 ]" e& @" a; o requestVariant[0].bstrVal = itemStr; * k; F7 k) C+ ~6 x$ t. L. B- y- W% D4 k) P. e# q
topicStr = SysAllocString((WCHAR *) L"system");7 ]0 n7 A q) o+ j9 \) N) a( ?6 c
VariantInit(&requestVariant[1]); / h) u" ?& t/ @& g5 i" a. r1 ?7 K
requestVariant[1].vt = VT_BSTR;! m( H4 x( Z; ^# B# U5 h4 n
requestVariant[1].bstrVal = topicStr; 4 z5 O' T# }/ B- J/ Z* w3 A% F5 d& @2 ?* `) `
// Set the DISPPARAMS structure that holds the variant. % s4 j& L/ u3 o1 O8 k1 e1 ]6 ?) C$ C; f" ^
dp2.rgvarg = requestVariant; . t8 X$ T5 t2 J. J4 u: D- a t dp2.cArgs = 2; : ~1 u. K# l8 g! [* d f dp2.rgdispidNamedArgs = NULL; 4 z5 C; {$ z' a" v4 B dp2.cNamedArgs = 0;- r0 i) C* `4 Q* `- k3 F
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var.vt = VT_EMPTY;1 A8 @3 a. }/ T
0 q' v) i5 h. X, O- f1 e// Call IDispatch::Invoke()" _. `" L/ p2 s0 F [! l2 W" E
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hr = m_pDisp->Invoke( % @+ J* G6 Z; @ requestID,7 U7 a7 g+ ~$ O6 [
IID_NULL, ; L% r% N6 ^) J1 y% p& n LOCALE_SYSTEM_DEFAULT, a. Z' \4 x2 p$ @1 o. K* l DISPATCH_METHOD, 3 H4 n, a) Q' M9 r+ W# B) r &dp2,& f$ p N% A# G
&var,+ ]3 }& Y3 m% G* Z
&ei,( X8 K( x1 M" K7 \* j& }
&uiErr);% d0 p% \8 x" z5 D
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SysFreeString(topicStr);3 g% ]. U& T* v; P0 {8 N! O* N1 L7 `4 Q& W
SysFreeString(itemStr);4 s7 p# r* |% O$ w3 c
请问该程序是获得extend里面的哪个值? ; r* D& }% c8 a5 p0 s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????