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 J' \7 D9 {5 Y I7 L
Name = (WCHAR *) L"Poke";9 j3 A- A7 `; H' Q% D
3 U/ y6 g2 m& p6 Y1 o: h hr = m_pDisp->GetIDsOfNames (: i& l( Z0 U, G! o* Z
IID_NULL, // reserved , J. e+ N& q% X2 N' C' t &Name, // Array of names to get IDs for$ d) B0 g+ [9 m# O! S2 W: g
1, // # of names in the array 6 v" O( \$ C: r% ]- t LOCALE_SYSTEM_DEFAULT, // System locale. |7 w; y! m: a, q* K& y
&pokeID); // Array of IDs to fill on output 9 U: S+ H9 n$ c) q& N5 ?0 Y & L d1 X3 B/ N/ C
if (hr) ( J8 K1 G7 ~, y5 B0 k { , }4 e. \0 B/ |0 e( X# Y6 V MessageBox ("Get Poke Unsuccessful"); ( u5 o; }& s/ _4 O1 H) O return;* u7 h# L+ M. ]+ ]$ j
} , G* r& h* d. f% z: N ( P' ^+ o( n3 _5 e/**************************传递数据给extend**************************************/ ' ]3 N" {( R8 W. r/ v( T* i& m$ U% f* b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . j/ Z5 P% G; A% F1 S/ | 6 P: C/ l+ [- q) W# [. u) D
valueStr = SysAllocString((WCHAR *) L"1232"); 6 |: m) W z: d# x VariantInit(&pokeVariant[0]); / F8 o/ a5 ^2 a5 v2 v! P z M
pokeVariant[0].vt = VT_BSTR; ) k0 i& o# t; W" \# d pokeVariant[0].bstrVal = valueStr;6 r7 u) o6 W. }* o8 P$ ^. o
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! `/ X: u; \9 e( g
VariantInit(&pokeVariant[1]); 0 m$ Y% S3 X/ Y! L' L8 g+ a pokeVariant[1].vt = VT_BSTR; 1 v: Z& Z) p1 x$ w" u+ N e) x pokeVariant[1].bstrVal = itemStr; . i4 U7 L: U9 v: W! k7 Z& |3 @% ~4 p' |6 }' d# F
topicStr = SysAllocString((WCHAR *) L"system"); 4 T" W( k* ]- a3 d, k' w" B3 W5 u: u VariantInit(&pokeVariant[2]); & ?* Z' r& K9 {3 S( R L1 c9 M8 M' m
pokeVariant[2].vt = VT_BSTR;+ r" i( |5 i" u
pokeVariant[2].bstrVal = topicStr; ( \ O8 h+ G1 U1 g9 \% I 4 t* [9 e/ i6 U0 r! O// Set the DISPPARAMS structure that holds the variant. { Q2 V1 v2 e) T. p! T0 k* e6 v8 F3 c6 j3 J1 u2 O% L+ C
dp.rgvarg = pokeVariant; . x3 [- I/ [) `) Q8 S dp.cArgs = 3; 0 B: U$ A0 @& Q$ F. h3 Z4 U" y5 \ dp.rgdispidNamedArgs = NULL; ; b$ D$ X8 y- B) f dp.cNamedArgs = 0;* p$ c0 Y$ ?5 ^: c* E3 H$ D
5 ^& t* x( }# Q% v( o$ m3 h// Call IDispatch::Invoke() ! i) P: {! w b* ~* x4 _ 8 s% V. ?3 o) \& x hr = m_pDisp->Invoke( T6 L8 v" R5 Q) d pokeID, % }! L, n# A+ ?& q- H IID_NULL,2 l; `3 L" i6 Q7 T0 Q& `2 d
LOCALE_SYSTEM_DEFAULT, % }5 u7 H; \& R& z( J" @! r5 ~ DISPATCH_METHOD, 5 y% X3 _ ^6 G$ e! p; ?3 [( x0 a &dp, 5 D6 Q, h% {$ F; _- t, C* V) O NULL,9 l1 t: _& }. n; \0 i
&ei,' Y9 Q9 j2 V% N) Q/ F
&uiErr);0 k S) \, H5 v/ V+ W7 x, T+ z# [& V
; e: K# }% [! }. y5 Z SysFreeString(topicStr); : d# v" ]# D( u4 R SysFreeString(itemStr);$ E% |9 {, e# H/ g& X4 L4 W
SysFreeString(valueStr); & H* Y+ K$ k" F9 c5 ~ 4 [: p+ ]1 ~0 O, m! W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??? Y- O5 W0 Z1 x" l) m" ]
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????7 e- J; L j' j0 Y, X
, ~5 m0 [9 A8 u+ ] D% R : o3 A* B. C; x2.这是request的程序/ I1 j0 e* V e" G* Q
// Request a value from Extend- L9 A1 H5 {% T3 U$ a
// ) a$ |9 L0 N7 }- Z3 W// Initialize the variant that will hold the BSTR. Set the variant's - g* r" A" c( v7 V- p% [5 \7 O8 f9 |// type flag to indicate the fact that this variant holds a BSTR. Place the ! Q+ f5 s2 @$ Q& e, T( S0 E// BSTR into the variant structure.4 ~# z/ \0 i1 {4 C/ [6 }+ N
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 {- M# q# k/ p" T+ S# M* | . G+ V, q8 Y0 S# S' G" Q) D* H% L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" o4 W7 ~# O; B8 X/ i
VariantInit(&requestVariant[0]); + J0 H) g5 W& K, N requestVariant[0].vt = VT_BSTR;1 O# n/ G% Y. E+ U
requestVariant[0].bstrVal = itemStr; 5 I1 N% V9 R6 z* R) K; L" v& F1 }+ ]+ H* j$ E: g
topicStr = SysAllocString((WCHAR *) L"system"); & X! R+ M6 C3 b" @/ o VariantInit(&requestVariant[1]); 9 T) j/ y9 E) w6 u. i- v3 L/ P4 u0 c3 r
requestVariant[1].vt = VT_BSTR;2 D) d: D5 M. O: n& O+ ~
requestVariant[1].bstrVal = topicStr; ! U: i& c1 V" |) b. @1 U. Z5 c, U9 d* u$ W4 w0 o* ^
// Set the DISPPARAMS structure that holds the variant. ) }# k7 |0 W! S d4 X& P" X; y+ Z4 A+ w0 p, [+ ~$ k0 v
dp2.rgvarg = requestVariant; 2 w2 _! B2 R O, u5 g- u) M dp2.cArgs = 2; * ], C. B: I+ g" b5 p2 x, t0 n6 X dp2.rgdispidNamedArgs = NULL; . _7 T9 c* m6 z. Q; ?' `& S% M dp2.cNamedArgs = 0;0 ?# k1 B* r1 o U. A0 U- r
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var.vt = VT_EMPTY;- I# u) L8 c1 i* f9 d2 ]/ ?
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// Call IDispatch::Invoke() ! I. V! a' Z: { 0 O7 R6 [, L/ ^, N+ z& _) N hr = m_pDisp->Invoke( ; b$ G( \2 p/ C/ @/ e2 r! | requestID,4 D& ~2 W4 d7 j& n. C
IID_NULL, 5 v+ }( J, |, g& g LOCALE_SYSTEM_DEFAULT, & b! A3 T$ m2 \ DISPATCH_METHOD, & b' r- C: _# _! `: S6 } &dp2, 0 W8 u9 T1 l# w &var, $ G: d* C5 u+ C; S- x &ei, 5 I$ t. l C" d. h8 v &uiErr);' L) D4 T9 R/ i
7 Z+ A8 _8 H* x) G- }8 X% ~1 h% s SysFreeString(topicStr); 4 M, S' V9 z7 }% W$ q( G SysFreeString(itemStr);9 A( V. L. t& L; G" P' t
请问该程序是获得extend里面的哪个值?. u& a7 R. n2 f0 t1 ^/ @! [
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????