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：# ]. m6 |$ B1 g B4 j8 U
Name = (WCHAR *) L"Poke"; 4 g) |9 S) E E' ] 0 a0 E0 d. y* l+ a
hr = m_pDisp->GetIDsOfNames ( , {/ U3 l0 L x/ o8 t: I8 D IID_NULL, // reserved 2 E- ~0 x- A/ m9 D [- W2 B! l &Name, // Array of names to get IDs for$ a6 D; ^8 ~/ t4 t% G! D
1, // # of names in the array4 P9 E# p. l/ P3 S! d
LOCALE_SYSTEM_DEFAULT, // System locale. y7 X) Y' ^# A }1 E
&pokeID); // Array of IDs to fill on output 0 p# i: C+ |7 c" O& n: N) f ! U8 ^) ` i+ b3 s' s
if (hr) 6 S1 O9 Y- V0 _5 M9 I( r- { L ` {* ]$ |% A# {1 y- v6 h; l& X
MessageBox ("Get Poke Unsuccessful");7 c2 {, R& D% p& o- d
return;! j c2 v( i7 Z( N' |0 h! d
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/**************************传递数据给extend**************************************/$ N+ m( \' b7 c$ r6 _! T2 C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 D% H. }+ V! t( W7 A1 l " {* x$ f& y3 ^
valueStr = SysAllocString((WCHAR *) L"1232");, n8 S! J0 I, }4 u. w: u5 _6 u
VariantInit(&pokeVariant[0]); 8 V( Y( D. k3 e, G& a$ F pokeVariant[0].vt = VT_BSTR;1 u) E' h: a) i
pokeVariant[0].bstrVal = valueStr; @9 T( U9 h, B! \
5 j, F0 H' ]4 F/ p/ u3 w, @9 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ B4 A) |: C. Q4 N6 r/ W
VariantInit(&pokeVariant[1]); 6 M+ I0 A; L+ M6 t' f+ Z pokeVariant[1].vt = VT_BSTR;! R* F/ {; K+ G2 P3 V6 `- D
pokeVariant[1].bstrVal = itemStr;' S; o/ }8 u5 C7 Y" q
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topicStr = SysAllocString((WCHAR *) L"system"); : j' y6 |4 K1 q' a VariantInit(&pokeVariant[2]); 4 D! z4 T; \: c* O% p: Z# T1 v
pokeVariant[2].vt = VT_BSTR; ( B/ f7 A& Z6 j5 o8 B6 R pokeVariant[2].bstrVal = topicStr; \+ W- B* B, s! f
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// Set the DISPPARAMS structure that holds the variant.: y; B6 W2 y$ }6 V/ C4 O
+ {9 D& B Q, p+ [
dp.rgvarg = pokeVariant; , R7 Z# c/ w9 x; @2 e( H dp.cArgs = 3; . W/ k% K+ N- f) J dp.rgdispidNamedArgs = NULL; 8 d" K; Z. R$ r' Y! y' g- N- O, D dp.cNamedArgs = 0;8 C3 W$ o- f0 M
- f/ V. k6 K1 m4 v; L6 g m// Call IDispatch::Invoke()5 R! N& d3 R' R+ ?0 J/ i% h
9 \3 B4 w4 o$ K8 k hr = m_pDisp->Invoke( " T+ B0 T8 T. n2 U4 _ pokeID,8 m9 u* T: @8 n( y
IID_NULL,0 }# h1 B" h: F( A* K
LOCALE_SYSTEM_DEFAULT,# m5 E$ W$ o) }; r
DISPATCH_METHOD, & _! g0 `' G. L# k) x &dp, 0 u3 g. ]. Z; I+ l6 p* J9 M4 B NULL, 4 H# F6 F9 v, F# h &ei, 5 X: b; Q& o) h0 ?% U0 m &uiErr); % N+ X7 k. v- e. p$ E! |9 b # b4 q4 ^6 N6 ?" r9 k6 u+ ^+ u% t2 \ SysFreeString(topicStr); 8 N) }+ l" [6 P! M; C; ?0 Y SysFreeString(itemStr);: K E* C, ?/ d" w% s' [
SysFreeString(valueStr);! v& c( m0 G! o. T. |4 O
+ K; k+ y2 f3 y% u. w0 T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？？？ 3 D. Y8 H1 m- W3 w6 ~9 L( Q) b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？？？？ 1 o& _3 u' }+ Z! [0 A {6 E4 O+ {# S8 ?. {$ O/ f$ e
+ m$ e0 R! K2 _+ a/ {2.这是request的程序 & D4 ]" U+ ~' c6 G M" ~3 d2 T' Y$ u// Request a value from Extend/ o4 y- G' a7 f t
// - A% A' s, Y4 y: a// Initialize the variant that will hold the BSTR. Set the variant's 8 f4 W7 W+ ~) c* b, ~// type flag to indicate the fact that this variant holds a BSTR. Place the6 V" z. y+ H- r
// BSTR into the variant structure.3 c) R$ E# N5 {' Y! z+ o+ j
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 X0 Q( N% X: L1 L. z- \
& v3 {6 O9 J! H/ w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) n5 W& m; A8 q; n- ~ VariantInit(&requestVariant[0]); ; a: O0 {! i1 U9 z* v requestVariant[0].vt = VT_BSTR; 8 _- J% G! Y' m9 @ r requestVariant[0].bstrVal = itemStr; / S7 n1 y2 `. [' p( W' D$ E& v4 [- J+ t' I. P
topicStr = SysAllocString((WCHAR *) L"system"); 4 G1 l$ b7 \6 s' g VariantInit(&requestVariant[1]); % ^# T7 r8 c3 b0 Y requestVariant[1].vt = VT_BSTR; $ F6 N \! u- K( n: u. b% v% q requestVariant[1].bstrVal = topicStr; ! w7 M- J; Y& G6 @6 m- Y 2 u. K/ R& S. m// Set the DISPPARAMS structure that holds the variant. . v; h3 J6 x3 b8 C# k$ D" R' F8 v% M" n
dp2.rgvarg = requestVariant;) t0 {: S3 ?" a/ b
dp2.cArgs = 2; ! R. T/ q9 O0 P1 b6 L- @ dp2.rgdispidNamedArgs = NULL;! m* |; j- L! U% X8 G, V
dp2.cNamedArgs = 0;* G' l/ [$ h7 N# ^
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var.vt = VT_EMPTY; " s7 o5 k8 Z- p( P 6 p- e5 Z' u$ F" Z' v/ D8 f// Call IDispatch::Invoke() / q) I9 ^! u( L% n2 D6 T " \6 n: c" x* E hr = m_pDisp->Invoke() _4 `9 K. w' r4 }0 N+ F4 O- h" C5 z- K
requestID, N' z, s% Q; [: A7 T/ E9 d& n" x
IID_NULL, : |: B- |7 [, A( g% j# k LOCALE_SYSTEM_DEFAULT, 5 L" i$ R. ?+ C DISPATCH_METHOD, 1 e# B3 t7 W+ L- v, ?2 T8 H/ _ &dp2, 0 ]9 i4 B- D, s: F &var, $ a% `" o+ _% E% u. e7 G; W' X0 [0 X &ei,1 `$ y/ r/ a; l. x+ c5 N
&uiErr);! t9 f% `5 f2 V. q1 p! n
发表于 2008-11-25 19:37:03
