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:' Q0 G/ X# D5 a: D" M, ^
Name = (WCHAR *) L"Poke"; ( l3 m0 v2 Q, s+ y 9 J4 |- [! ]; u; e$ [ hr = m_pDisp->GetIDsOfNames (! \% H. m- d) i/ q+ W3 I
IID_NULL, // reserved * I0 q# N/ W; F Y &Name, // Array of names to get IDs for 5 ~$ Y3 Q+ g5 y' _ 1, // # of names in the array / { I, ^3 r1 l7 d3 J( U LOCALE_SYSTEM_DEFAULT, // System locale/ q' |. _ q/ J- m) o( ]) T( g6 `8 y
&pokeID); // Array of IDs to fill on output( `/ l. O4 X0 {- S+ ^) n( b4 t
5 |# f$ ?" F) m! R3 J: p if (hr)" {" `4 {: I4 R
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MessageBox ("Get Poke Unsuccessful"); # D+ q; o6 T. a7 a" z& N" f4 J return;) ^ a+ t, s* `5 ^1 H( c( @. X
} - _8 \3 C! T7 [; \' w" M) ~0 ? 8 j. d5 Z6 D+ I/**************************传递数据给extend**************************************/ 7 ]* Q) w9 g1 A1 U6 K9 { pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 ~/ x9 M, ]5 z- ]+ N & `2 e* G* a5 d( i' F- x4 s
valueStr = SysAllocString((WCHAR *) L"1232"); ; u# K& {8 ]% W* ? VariantInit(&pokeVariant[0]); * I$ r8 Q' f* h9 c% p+ L8 O! b* N pokeVariant[0].vt = VT_BSTR;4 N' p4 u w7 w- F3 A) I
pokeVariant[0].bstrVal = valueStr; . @$ ~1 e; c/ u, \ % q1 q9 s9 {. s3 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, X. `5 v. u, ]' p" U7 B
VariantInit(&pokeVariant[1]); ( u+ Q3 ~7 a; W+ C; E4 n
pokeVariant[1].vt = VT_BSTR;/ G- F9 [5 [( b8 f* L2 x7 M0 J3 L
pokeVariant[1].bstrVal = itemStr;0 W C% t, a& {/ T# [: P% d4 c% S9 z
* a" K5 ]; K% w L2 ~ topicStr = SysAllocString((WCHAR *) L"system");! b3 V5 S' p8 [0 o6 G: P
VariantInit(&pokeVariant[2]); & d K9 ?; S& J- ?0 _) }$ c3 }% u pokeVariant[2].vt = VT_BSTR; U( q+ e( m) l, |* {: [( s6 {9 m2 D
pokeVariant[2].bstrVal = topicStr; # P. p* V6 f: M( \+ G: M8 H ' a) t+ \, s6 f1 r9 j8 c4 n( t// Set the DISPPARAMS structure that holds the variant.( z) X6 `& f' R% O' S
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dp.rgvarg = pokeVariant;( u) W6 e: i& h$ ]9 j, o
dp.cArgs = 3; 1 [! u1 c; C/ w* v5 A: W o8 g dp.rgdispidNamedArgs = NULL; 7 m- l' n; E& a( l: v9 W/ Z2 ~ dp.cNamedArgs = 0; 7 I! J4 \ X/ Q8 L( C3 p. ~) M/ j) b: s9 }3 V5 `! k4 ?
// Call IDispatch::Invoke() 2 i1 X1 O; {& ?' m1 r, N/ b K5 f/ r7 n
hr = m_pDisp->Invoke( , x) m, H. O3 [ pokeID,5 q+ u/ o, {; G! D
IID_NULL, ) D* k' J5 ^% R( T LOCALE_SYSTEM_DEFAULT, + O) N! k! I) q8 @& _. U% H DISPATCH_METHOD,4 O- \6 R4 I) M; k& [/ p D6 B
&dp, / D6 ~! G! X6 U* X$ m! Z NULL,8 Z( n6 [3 V7 E% T: ], {! O
&ei, # D2 n3 [3 t9 m+ I% c &uiErr); o+ {/ ~ [4 w9 x- U" z8 V 3 \4 w9 e! q8 x+ y3 r; k( w SysFreeString(topicStr);, w+ m: y: h- p4 d6 T* U0 H9 H3 I& I; E
SysFreeString(itemStr);. L1 M7 L+ {9 J/ K
SysFreeString(valueStr); % G2 \+ [- ~5 _ 4 G; O7 [4 |2 i' m; [! a9 i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??? & |- L' r* k4 D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???? b2 G9 S6 T4 ~7 ~2 K+ F T, M A" t1 o: |+ m6 ~5 E& p/ x/ O; t
% B3 G& e( T, F5 R0 g# i2.这是request的程序" Z: R* a/ V+ w* z% b7 N+ e
// Request a value from Extend 3 O: J ?8 h. F3 T% O//* S4 ]( V/ @+ ?: W/ ?
// Initialize the variant that will hold the BSTR. Set the variant's 4 [3 K8 E& `/ h) R8 i3 M+ I+ e- Y, }// type flag to indicate the fact that this variant holds a BSTR. Place the6 B9 y6 Y' m1 n" B5 g, a2 K: a, N
// BSTR into the variant structure. 8 m2 D( | _! d " I1 d0 N* T2 i8 G: j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' F! Q* m: `3 m. c3 } 4 I" Z# h3 C' M+ E, u& P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& T4 O( Q3 }$ N+ }+ N( Q
VariantInit(&requestVariant[0]); ' U% w) X+ O3 i: E$ M requestVariant[0].vt = VT_BSTR; / i$ ~2 S, U( y2 _/ n requestVariant[0].bstrVal = itemStr; & c8 t$ ]! r8 N( X ! [7 A- J" v- F3 F9 w2 @ topicStr = SysAllocString((WCHAR *) L"system");9 I2 I# a, c' u$ O3 x
VariantInit(&requestVariant[1]); " R" H/ v7 k% [8 G$ r7 X! G' y
requestVariant[1].vt = VT_BSTR;8 [8 x8 v5 J& l% h1 ?& H% B" p
requestVariant[1].bstrVal = topicStr; $ [) U; E# H P) j' U7 _+ C : [, u4 b n. \7 R% B" c// Set the DISPPARAMS structure that holds the variant. . @% z* q+ d. Z7 I' M( ], v- z' l+ w* E
dp2.rgvarg = requestVariant; ( V! j% u+ m7 N1 ]7 P dp2.cArgs = 2;1 P/ u, ] J$ C( O" D. [! o: `7 d
dp2.rgdispidNamedArgs = NULL; % v: U2 r8 [7 e6 | R8 c, ` dp2.cNamedArgs = 0;8 y+ M# h# w# u( G/ z+ I% R- ]