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:# k- X: j& ~! @! O6 x: }
Name = (WCHAR *) L"Poke"; 1 e8 T' E5 p8 ?6 o$ F0 G 0 |6 l& r0 \' v0 A
hr = m_pDisp->GetIDsOfNames ( $ Q q( y: a# D7 Q8 u3 I: r+ Q IID_NULL, // reserved7 G6 `, ^5 E, _, ^
&Name, // Array of names to get IDs for 9 \/ d7 P+ X- f" K6 {' G+ e" g 1, // # of names in the array5 M4 G2 D$ m' X* r+ P* `( u) ~, x
LOCALE_SYSTEM_DEFAULT, // System locale % i1 D n7 k2 [/ ] &pokeID); // Array of IDs to fill on output2 O) B9 f8 C6 } B5 N+ B( W
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if (hr); ^& R* X p1 [ }4 w
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MessageBox ("Get Poke Unsuccessful");: ^& ?* ^0 c% ?6 ?5 k/ v
return;0 X" z0 U3 G0 P" E5 h
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/**************************传递数据给extend**************************************/% _( G8 g! c) E0 N, S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); y% \& b6 S- I% `% M M ! H( z+ ^% A$ l6 o valueStr = SysAllocString((WCHAR *) L"1232");% N6 o7 {2 k$ v1 b- W
VariantInit(&pokeVariant[0]); 1 `" v) G# Z: a& S* ~# O( Y pokeVariant[0].vt = VT_BSTR; ) c) K9 @; k+ _/ N pokeVariant[0].bstrVal = valueStr; ) r( T5 E* i) a3 d( i. O2 S$ o ; H7 c! `, R f5 X' A3 P* L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + h9 K+ D% l/ p, i6 R VariantInit(&pokeVariant[1]); ' D1 [! g' r3 s) R+ s$ E1 y I4 {, ? pokeVariant[1].vt = VT_BSTR;+ h( `; G% D! S- \5 k( h9 G
pokeVariant[1].bstrVal = itemStr;$ v( x" P, D5 O1 H
9 B" m8 k- m" ~2 U {/ [4 y topicStr = SysAllocString((WCHAR *) L"system"); " g2 E2 }& b4 W VariantInit(&pokeVariant[2]); 3 w0 X9 a5 M8 H' ]3 ^1 E pokeVariant[2].vt = VT_BSTR;$ H* y# y. ~# B5 W# f
pokeVariant[2].bstrVal = topicStr;: K2 H2 K& I- c0 R' e
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// Set the DISPPARAMS structure that holds the variant. 2 L/ U( Z% a0 @; N- s" W% i 5 N% f% t* [( O; x* _6 l dp.rgvarg = pokeVariant; ' S" N% |5 l/ n3 y/ l, j dp.cArgs = 3;/ D e& F0 G5 ^9 h" V1 M/ Z- I5 i
dp.rgdispidNamedArgs = NULL; i' `& F8 d* P# O: z# |
dp.cNamedArgs = 0;. h5 P$ j/ n+ X: A4 c
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// Call IDispatch::Invoke()5 {* C9 z3 M8 c8 s
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hr = m_pDisp->Invoke( , ?+ g# o& q3 W& m$ [# k" X pokeID, ( T) A* ~3 L' q; a IID_NULL, % |* J- w$ ?: p+ P0 u5 [2 ~ LOCALE_SYSTEM_DEFAULT, 6 C C5 i' s( F' p$ G8 r6 N DISPATCH_METHOD, 6 ^' Z! v6 s6 [ &dp,; S x( c, S @4 z% M' ?. I5 R) g
NULL, / _/ t/ l+ [: }$ N( r- i* w/ T+ Q) G &ei, * t0 H0 p7 o6 D( w' s5 L9 O &uiErr); 4 |# A9 B* c+ _ 5 C/ |% A5 a; N. B; x8 k SysFreeString(topicStr); 2 s5 B+ i! T. [- @ R6 t SysFreeString(itemStr);* X3 S6 x- T7 N6 X: }
SysFreeString(valueStr); . ]9 L0 H$ D2 `: E* B+ v- i x3 k8 k+ ~8 t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??? & S4 `) d' b: V" ?2 ~8 ?. N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????. v7 G* W) ~" I; F
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2.这是request的程序 ; ]" V( u- ?4 p& Z/ k9 A: R ] i// Request a value from Extend # t/ B b+ S5 _7 ~. f// / L$ A6 l$ {; R% \1 t// Initialize the variant that will hold the BSTR. Set the variant's- U: k6 e) j# W
// type flag to indicate the fact that this variant holds a BSTR. Place the ; C& V- h$ a7 G// BSTR into the variant structure. 1 X& R9 R8 `, h5 D. l( P/ P6 J3 G; l6 Q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 f" ^" x6 w5 ?# K1 K' Q0 S+ ^ 6 s# L; E5 Y4 @3 h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- D' l5 U# z9 C0 c+ k
VariantInit(&requestVariant[0]); - r% C& U* k: S- Y4 p8 Z, h, g/ R
requestVariant[0].vt = VT_BSTR; 3 @ \" h6 s+ i7 x2 M1 s requestVariant[0].bstrVal = itemStr; & B \( ~& i) w4 i# M( `. k( Q' M( ~( u+ Q
topicStr = SysAllocString((WCHAR *) L"system"); ( U8 R- r2 G4 K VariantInit(&requestVariant[1]); 5 }0 [8 D! r3 [9 ?& D
requestVariant[1].vt = VT_BSTR; ! Q& g3 B/ r2 w) Z$ b. M0 T. Z h) d requestVariant[1].bstrVal = topicStr; 4 n2 c# E7 X; C4 [; p ! L$ d0 v$ l- q, a// Set the DISPPARAMS structure that holds the variant. 7 J, j# @! [/ Y7 ^; _' L ( y" W, n) @# p& y$ J dp2.rgvarg = requestVariant;* s, g- |* }! b2 e4 {& N* A) D# R
dp2.cArgs = 2;* Y, e- \/ Y$ e
dp2.rgdispidNamedArgs = NULL;" F- ^% K" o1 M0 s" x
dp2.cNamedArgs = 0;4 O0 ^$ Q+ J5 x* i* k p
' y' {* \% ?& w& B, z$ I/ ?1 a var.vt = VT_EMPTY;/ u6 i% |' S) m5 q4 P9 u7 m/ W
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// Call IDispatch::Invoke() G3 k* b+ Y- M% \# a7 G4 \# L( K. g5 K$ y3 M% R; [# \5 W+ t! f$ g
hr = m_pDisp->Invoke(" J2 A5 t9 E' y ?
requestID,4 z" n+ E4 x& l6 H+ v# ], K
IID_NULL, $ D" G, C0 ^7 q LOCALE_SYSTEM_DEFAULT, ; p: X; a; E% c/ L DISPATCH_METHOD,8 n$ T( W( E N! i- k ?$ F0 M
&dp2, * T1 {& M' m; I &var,# A7 Z' d* M! I
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&uiErr);$ S9 j/ V# g0 Y, _" h
9 O& ^5 H# k. v( M% e! v; z SysFreeString(topicStr); g! ~& v/ c. W# E @+ Z- ] SysFreeString(itemStr);1 s' A; b6 d+ Z( r
请问该程序是获得extend里面的哪个值?4 A2 e K) U; O5 f) g6 T
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????