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:% h- Z) Y: ^) Y, F; x3 T
Name = (WCHAR *) L"Poke"; / t7 e" K( W" n: }/ e0 f 2 ^" l* k# m9 M9 ]# Y6 w
hr = m_pDisp->GetIDsOfNames ( 9 s* v* z) S; F( C$ C IID_NULL, // reserved / f, Z/ [0 f, r3 [) O& ~0 q6 D$ n &Name, // Array of names to get IDs for . G ~1 C' z( }; |+ F 1, // # of names in the array 0 n1 L* ~( U2 b! i$ I0 x8 ^ LOCALE_SYSTEM_DEFAULT, // System locale / u, B8 O* L! _) Z3 X &pokeID); // Array of IDs to fill on output : W7 m8 Q" ?; U" y3 K. L2 t3 a ( Y4 s. ]9 O% z* ?8 e. l& q9 c6 G if (hr) ( c; ?' j* E' B { x( ?# G" U( A( j. K MessageBox ("Get Poke Unsuccessful");. l! K; k$ z# J& |$ s N8 \7 q% o* ~
return; . m# }& l; h5 J- j' ` }# M; C' T" {* I9 y$ ^5 e& K6 c% e
5 _" k+ d' G/ w* X. Y valueStr = SysAllocString((WCHAR *) L"1232");6 ^; m. k9 `2 r/ R
VariantInit(&pokeVariant[0]); _7 |6 C$ N, k% M pokeVariant[0].vt = VT_BSTR;+ ^& ~5 Q/ z7 i+ Q" ? F( S8 {
pokeVariant[0].bstrVal = valueStr;4 _% H8 I1 O! ]; C3 ?
# F4 n6 [! O5 |1 H! }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); A. E& S) ~8 I# z VariantInit(&pokeVariant[1]); 7 [5 S7 i( G1 f' b9 n" z1 j/ N3 S2 ]
pokeVariant[1].vt = VT_BSTR; 4 W l2 E; x' Y* o ^, b/ Q* v pokeVariant[1].bstrVal = itemStr;% i0 Y0 t4 p v6 I4 _
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topicStr = SysAllocString((WCHAR *) L"system"); a) ?, u. c6 @6 _" }( a* V VariantInit(&pokeVariant[2]); / [( u$ y% L8 D3 g% @
pokeVariant[2].vt = VT_BSTR;* p- i: d" r. Q2 v
pokeVariant[2].bstrVal = topicStr; 3 s# x V: @$ D; E% m / ]7 U+ y) b( |! l" L' e3 A// Set the DISPPARAMS structure that holds the variant. ' R: C' _- L& J% }: x* v, E ) l3 n2 V0 h. W* Q. E; [6 i; f dp.rgvarg = pokeVariant; 1 |# w7 H( U/ |! s9 ` dp.cArgs = 3; ]- k% ]; t) v) l dp.rgdispidNamedArgs = NULL; 5 x* ^' l$ B: w/ v3 l dp.cNamedArgs = 0;9 x5 J* X* m; o# T$ W
4 E6 v$ ?2 q, R2 T// Call IDispatch::Invoke() " K) p- J) N" |5 f/ [ - S' l6 S0 B( i6 X hr = m_pDisp->Invoke( 2 |/ ~" f z6 O: ^+ @ pokeID, $ j, b$ {- q* k( S$ M6 w IID_NULL,0 G2 p7 Y9 D% _$ E5 C) h @
LOCALE_SYSTEM_DEFAULT, ! t+ o$ F! c+ R6 h G8 f DISPATCH_METHOD,2 s9 g8 ?: h" ?% H9 m
&dp,6 w* B! b2 J" R, [, h
NULL, # l5 F5 J: M: K- Q* }8 L/ W3 l &ei, 0 G" ]( o5 e0 j! I# k &uiErr); : o) K3 c, \/ [! \) S9 A+ H& M% a& g: p6 I$ N$ W3 N' q
SysFreeString(topicStr);- ^/ a, [# p2 \4 m* @$ r9 l
SysFreeString(itemStr); + v* E- O: C: b. R w# ? SysFreeString(valueStr); " k4 u: E" M: r5 A4 B. N 8 l& F6 z4 U* g5 u M( C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??? 4 v0 G& `: M. H/ b0 |$ w. k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????/ {$ W5 m2 j; S* R0 {3 a6 p, a! L7 r9 F
, L. {- [2 M5 ]" j8 X2 H# c7 L q( E 8 T2 e0 @8 p: _- C# _7 X8 ?! b+ X2.这是request的程序 * Z+ I8 l) }% I6 B5 L9 q- c3 Y// Request a value from Extend7 }2 Y5 U& x9 _1 L7 H# K; m- ^
//# t1 P, F& g, z/ `) f
// Initialize the variant that will hold the BSTR. Set the variant's ( C1 ~% B- |$ O// type flag to indicate the fact that this variant holds a BSTR. Place the . _$ {$ d$ ]; k0 @' Q// BSTR into the variant structure.7 w$ Z3 S8 y' y+ U- e" \; @; |
) i: s$ m( a2 g5 R4 Z3 f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) e# @$ K. d8 b8 l& p$ H 5 u6 M- m4 v; S( }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) Z( r+ W% i( |& Z3 K
VariantInit(&requestVariant[0]); $ S6 i' p s$ \- L. t( s
requestVariant[0].vt = VT_BSTR; & S: R) ?0 Q1 U requestVariant[0].bstrVal = itemStr; $ v& z& K; [) @* A " g- p5 I" b- p: t$ a$ C: L topicStr = SysAllocString((WCHAR *) L"system");' V! h4 g- b! Y% V2 A) y
VariantInit(&requestVariant[1]); " \, v: d. B) S) S; t requestVariant[1].vt = VT_BSTR;7 Y, i* |8 e" H- Q1 T
requestVariant[1].bstrVal = topicStr;4 c$ V5 R4 f6 R5 h
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// Set the DISPPARAMS structure that holds the variant.9 d' Z& M* z7 z4 X. w* ?
3 Z. E% u2 @+ f7 A# | dp2.rgvarg = requestVariant;6 e, v! {6 R: R; d& w
dp2.cArgs = 2;& l1 L- H, \8 t& b
dp2.rgdispidNamedArgs = NULL;/ ]- x+ r8 B1 n; z0 F0 |0 ~
dp2.cNamedArgs = 0; % z+ m" Y8 r" v, H6 {. U( J) e3 m- [% b0 j$ T0 g7 K7 _1 Z+ l# w) z
var.vt = VT_EMPTY; 3 n0 K0 `) x# s v ' U/ _: U9 @: O( B# {- o// Call IDispatch::Invoke() ) u7 E/ q5 e3 ` . _$ z+ u P; c8 ~# H0 a$ m& m( J hr = m_pDisp->Invoke( ) U: g: \ X7 V' x+ S requestID, ) ~7 N% q4 c2 u" l) C( m; X! t3 H IID_NULL, 4 N7 b" r, z0 b7 K LOCALE_SYSTEM_DEFAULT,( r# S7 C6 |% K. M# H
DISPATCH_METHOD,% h; @# ]$ u- G, ]4 s$ J: ^
&dp2, 1 @* @: X2 R2 H; X$ r8 t ? &var,' C0 a6 n) C" h
&ei, # j1 _% c4 T2 L, S" P5 J& V &uiErr); # C5 ~2 @$ K6 C( g4 v. |4 j + [* p, z$ {; h9 i+ q# H SysFreeString(topicStr); ) m; I# u# T: @; T$ Y2 f2 {1 [ j SysFreeString(itemStr);" P) ^2 ~. ~9 W/ T# u1 ^3 I
请问该程序是获得extend里面的哪个值? 0 E7 U6 y" G8 Q; Z8 H# ]; U l* L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????