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:& j9 ]+ N; a3 u% t# P# E
Name = (WCHAR *) L"Poke"; 6 U: \1 Z* s J0 T6 q ) N5 B* { B- a u" {/ n5 U
hr = m_pDisp->GetIDsOfNames (- J1 h( y) r% q
IID_NULL, // reserved) \ J+ t& i5 M* C% @5 k
&Name, // Array of names to get IDs for 1 w, [( L3 U% ?5 C 1, // # of names in the array % n+ @' u q1 e LOCALE_SYSTEM_DEFAULT, // System locale 9 C. x) L9 d% N+ a6 j! f &pokeID); // Array of IDs to fill on output3 \ L* t* l. z3 X, e) Y
3 H- }0 i, t) F S3 S- V4 f, }+ y7 J: Z X if (hr) 3 U3 f, l3 G4 x* e, W) p- X q { : a7 l6 p' E7 g7 l MessageBox ("Get Poke Unsuccessful"); . d1 f' A5 T: I$ K+ E9 t$ Z2 S return; & o, F9 ]' v: R: l/ q$ f }* G P5 Y' {, @. U' n$ v4 b" }
4 p0 E) ]& u1 ^7 m5 P1 z8 b& G/**************************传递数据给extend**************************************/ ! y+ C& h6 c8 P- J# L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + o1 R; W: K2 o# G6 f $ Q3 s/ m S& F* k1 \/ q% J7 w
valueStr = SysAllocString((WCHAR *) L"1232");- W; b; K- S: e2 N, H: c
VariantInit(&pokeVariant[0]); 5 k! r8 p& m" T. S! i; f pokeVariant[0].vt = VT_BSTR;: I) u# M0 d# e2 y* c
pokeVariant[0].bstrVal = valueStr; # G. ?7 }$ [. w$ N: i: d* x! V, g6 K" e4 E% y1 E- P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 C( P' P2 Y9 V" j& Q& v
VariantInit(&pokeVariant[1]); + B) j2 b' x1 p1 W+ C, A
pokeVariant[1].vt = VT_BSTR; & Y1 n& k2 ?) c pokeVariant[1].bstrVal = itemStr;7 F0 S H/ P7 ?( a/ k
R8 P3 l6 X, s/ b/ q, a/ V$ F topicStr = SysAllocString((WCHAR *) L"system");2 C& j( n P- d! U# `
VariantInit(&pokeVariant[2]); : a X3 u& |3 x' }- ^3 ]1 R pokeVariant[2].vt = VT_BSTR;+ t( R4 b5 D) u4 Y7 T+ \; |
pokeVariant[2].bstrVal = topicStr;8 R! e, V* ~ O" v
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// Set the DISPPARAMS structure that holds the variant. 3 j- Q+ h2 ~( j ! @7 u( I" V% |. i. C$ i$ ~! F) P dp.rgvarg = pokeVariant; ' {% d7 \/ o! U8 I- P# ^: w5 B dp.cArgs = 3;3 k+ r* Y# m. D& Q" B$ I
dp.rgdispidNamedArgs = NULL;$ q& b* C2 J. I9 m1 y% u
dp.cNamedArgs = 0;9 o, Y4 x+ x1 s
% ?5 j' v0 a8 E8 D+ z* ?/ p// Call IDispatch::Invoke()0 [6 D- M( r! [ k8 M$ z4 N
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hr = m_pDisp->Invoke(# e( h3 @( ^" g, q6 F7 W& h
pokeID, ' R6 u) M$ W0 J, P IID_NULL, * s$ W1 ]7 Q Y LOCALE_SYSTEM_DEFAULT,3 r- s; w3 G' c# u, _. X6 Q; ^
DISPATCH_METHOD,9 c2 I& T# c; P) q6 n4 n, R6 I* y
&dp, % g" w+ k1 R+ h( @2 F9 d. s { NULL,9 P& G* e% x, v N# D( f' A8 v
&ei,: L. F) ^/ K( [
&uiErr);, K+ G% `/ X; g2 g S
* |4 K5 Z, W4 d1 B# O, M SysFreeString(topicStr); & Y* v7 h+ g6 w7 T SysFreeString(itemStr); + I# m$ c- a, i& @% B; P3 [ SysFreeString(valueStr); ' @- v$ R% T& n6 l/ W, R5 V' t4 [* F: k: G, ]
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 G6 Y$ f, y6 F- f. 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???? + J K! j; H6 U8 R, W: o" D$ ~. b7 N5 x
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2.这是request的程序 3 p7 _2 N3 L' L( Z3 d! m" `// Request a value from Extend& o, s3 `, f6 `( O2 y2 K5 v# t
// % @" ]& Q. u7 v u" X3 O% m I' Y// Initialize the variant that will hold the BSTR. Set the variant's+ n' G. B. p3 b3 [8 f
// type flag to indicate the fact that this variant holds a BSTR. Place the* l% a9 O+ ]' U8 M
// BSTR into the variant structure./ D9 B D$ t' I1 j |0 R3 L6 M1 N
0 f; {8 f$ {) q. {) P4 h0 @+ w// Set the DISPPARAMS structure that holds the variant. 3 w# C: J8 A% ^! t 7 H8 @/ e: t& f& h v# K dp2.rgvarg = requestVariant; $ P" Q. x0 b8 w; C8 ]) m( D" u5 ` dp2.cArgs = 2;, N4 f6 h& _# | f8 T: D- c/ |4 Z
dp2.rgdispidNamedArgs = NULL; 4 b& b) Z! A1 q# U! U dp2.cNamedArgs = 0; . ?# W! `# I9 J4 `/ ~; X6 @4 U+ H% D4 `( u) Y7 V
var.vt = VT_EMPTY; ; R6 h; i5 ^/ ^. L& |- {% Y8 o; T( L* g2 f' k
// Call IDispatch::Invoke() $ \- S0 [1 ^3 M2 T5 ?. J1 B5 i9 @' n+ x- K: S6 `- f
hr = m_pDisp->Invoke(, N( W0 n) }# r+ d6 I# M: m5 }2 D
requestID,. \( S3 Q. R0 ^- O: {
IID_NULL,- s4 ~4 Z6 N( `
LOCALE_SYSTEM_DEFAULT, 0 k) ]2 z# Z1 R- D+ F DISPATCH_METHOD, , [' t' r& ^- G6 d( x &dp2, 3 |/ y2 k. T3 Q+ Y$ D &var, 3 j: ?% X/ m. F' W7 B m &ei,& D3 B$ T5 Z! s- p" D: g
&uiErr);* u1 j. S/ K( U S: w
! }) G: Y, J4 s( Q* `+ d SysFreeString(topicStr); ( m3 W; j5 j. J6 J! C SysFreeString(itemStr);* C1 F9 I- \, m, V0 i. d- l
请问该程序是获得extend里面的哪个值?/ {% ]2 _+ ?- H( F% J$ b" c
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????