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： 9 v- }5 Q; {& i" o$ EName = (WCHAR *) L"Poke"; . e( S9 |) T8 V* m9 `) W + B- r+ n* K" E4 M7 V# B
hr = m_pDisp->GetIDsOfNames (( w; c0 |5 z1 q) z5 ]
IID_NULL, // reserved ; `7 ?5 _2 m' X4 H0 S% L &Name, // Array of names to get IDs for # c( k# t" q. w1 ? 1, // # of names in the array2 F( m, M0 Z y1 n% l& g
LOCALE_SYSTEM_DEFAULT, // System locale+ J' r/ T% ?( g& J0 m, Y) S7 W
&pokeID); // Array of IDs to fill on output 7 z- b- T9 l( P7 v- ^9 P 0 u4 H% M& g& l( t if (hr) . o, q7 b7 C$ V {# R$ x5 E# u' \8 R+ r- w5 t( o3 i
MessageBox ("Get Poke Unsuccessful"); 9 H( `3 p4 g% ~% W4 M- H, R return;0 |0 H3 q( E* S ~# h
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/**************************传递数据给extend**************************************/ 5 H' o4 `/ U% W& A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - `6 |4 |" q8 X2 [1 o ' l2 l. b6 K4 s( f3 R+ ` valueStr = SysAllocString((WCHAR *) L"1232");5 k# ~1 y. V. v2 [0 x2 W; T/ l: _
VariantInit(&pokeVariant[0]); $ F, c* E! j. @ pokeVariant[0].vt = VT_BSTR;) s$ V6 `) ]* N% O
pokeVariant[0].bstrVal = valueStr;$ G4 z- J$ m# J3 b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# X( D& u' G4 p7 I
VariantInit(&pokeVariant[1]); ) M* t6 h8 j5 N, }& s pokeVariant[1].vt = VT_BSTR; ! C0 o: ?$ L2 m! K1 P$ h, w6 n1 r' W pokeVariant[1].bstrVal = itemStr;& \) p1 L( c9 b$ ?
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topicStr = SysAllocString((WCHAR *) L"system"); 1 H4 T2 ], G$ \4 @ VariantInit(&pokeVariant[2]); / z/ I6 W& ^$ t0 X( B- x$ V pokeVariant[2].vt = VT_BSTR;6 C2 G8 k( `. P) S- G
pokeVariant[2].bstrVal = topicStr;0 M6 P3 g. V; k
+ t# E, l5 u) c+ b" i7 N& Z// Set the DISPPARAMS structure that holds the variant.9 m) @5 U6 P* h. u$ u
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dp.rgvarg = pokeVariant; 3 a9 t' G0 Z9 }$ o( b dp.cArgs = 3; % l, D* W: z# I$ H6 W2 W dp.rgdispidNamedArgs = NULL;0 w: J9 h8 f# Y& g q
dp.cNamedArgs = 0; $ F# i" I( t" G0 v3 i9 X6 x# J/ T. O- ?' ^* g) F! X$ {
// Call IDispatch::Invoke() " C0 m' j$ o4 c( E7 @ ' i9 O. l* u# N/ g( s/ p; o0 E hr = m_pDisp->Invoke(# P# g- u c, w# \* C T# ]
pokeID, " A$ ~" G4 f# v6 s5 R IID_NULL, & _7 A$ j( L2 R LOCALE_SYSTEM_DEFAULT,6 P. t* S! ?/ J+ V. Z
DISPATCH_METHOD,7 c( L$ R0 |% {4 q8 l1 a
&dp, 1 Q3 I% h. l, ~% j' b NULL,. ?% {9 I. o- o7 W* n" G
&ei, 8 a' r( _) v. J9 {) i8 M5 S &uiErr);6 u6 N& @0 y+ b: D( n3 |7 ~/ A
! x) l* Y8 I' p( W% h% s- K C0 k SysFreeString(topicStr);. t( r5 M! j1 Z$ N0 Q/ |& d
SysFreeString(itemStr); g4 d7 a h" r* S' h
SysFreeString(valueStr);" Q3 ~, h1 L. y8 X
6 G$ g8 C3 T2 _0 E6 i# j- [: H
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？？？8 W. _# ^; ~# L0 C3 i2 W$ D" F. 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？？？？- Z' q+ T; l1 n( [8 E/ } g/ Q/ e
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2.这是request的程序 5 w9 \1 a: M, k a5 U// Request a value from Extend / I \& `( N6 D; |// 6 y M( i9 V6 U: @// Initialize the variant that will hold the BSTR. Set the variant's 9 ]3 m1 Q/ {% X4 s// type flag to indicate the fact that this variant holds a BSTR. Place the8 W. i7 I+ o" `' \- c* D* m
// BSTR into the variant structure. * d% M* j0 \7 l; {4 M& ?' d, \% O z0 N- }3 S
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - [6 F0 q* @9 h ( o, Q& R2 b' m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 H; l* o- Z/ Y# L1 H x VariantInit(&requestVariant[0]); " u# h5 ~ g" ]9 D. ~( O0 ? requestVariant[0].vt = VT_BSTR; : {' ]# d" x* C; R4 @ requestVariant[0].bstrVal = itemStr;5 A- l& l0 {. p. C, [$ X; K
& Z% d2 V5 X! f) @" n topicStr = SysAllocString((WCHAR *) L"system");' p# S9 C4 F6 Q! G
VariantInit(&requestVariant[1]); / K0 T' Q" w1 Q* I- e. ^) Q
requestVariant[1].vt = VT_BSTR; 5 ^+ Z. k: N% O7 U( L requestVariant[1].bstrVal = topicStr;& ^" j7 M6 b. w2 B: A* Q
, w4 k, b6 o+ P% l1 i// Set the DISPPARAMS structure that holds the variant. 7 Q% k5 o7 T0 J( t; F8 O& y" h " K& L. [9 K# n; o dp2.rgvarg = requestVariant;: f* ~$ b0 O7 r: e) k
dp2.cArgs = 2; , N+ Q! o1 W: B dp2.rgdispidNamedArgs = NULL; u, p4 o' {* h! g# [- r; c dp2.cNamedArgs = 0; & p/ S0 T n7 h4 `! s3 h2 f3 i$ H7 h0 o. F
var.vt = VT_EMPTY;4 N/ ^/ Y& y1 J% I& X
' S4 I% B* }9 ]4 H6 m$ \
// Call IDispatch::Invoke()- C2 T! l/ D/ @4 u' R
+ a. [9 D- H! | hr = m_pDisp->Invoke() D: Q$ |' O$ B- S6 g. M7 O; i. T
requestID, & A1 |# P! W. w% O$ A IID_NULL,8 _; D- W& x; ~
LOCALE_SYSTEM_DEFAULT,- l+ G* b; H, P
DISPATCH_METHOD, 0 Q7 M( o {! w1 r$ K, S4 y &dp2,$ E8 ^% K/ ^& K, B! K/ f" L
&var,- w* S/ o0 j) |' k" Z
&ei,0 a! ?1 ^" J) t' n ?* }" I
&uiErr);: A$ F. N% z4 ?- M
发表于 2008-11-25 19:37:03
