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: ' S9 Y- P ?4 w! d" sName = (WCHAR *) L"Poke"; 8 H) ?6 O/ G- ]+ r" ]8 |0 ~* C8 T( P 3 U9 g+ S4 d0 N' L hr = m_pDisp->GetIDsOfNames (/ h1 U. r& R3 x: a; l s5 ~
IID_NULL, // reserved8 a. Y* _$ e. m
&Name, // Array of names to get IDs for" h: O {- H |0 \- O7 ^
1, // # of names in the array! r9 q2 B8 |# h: M
LOCALE_SYSTEM_DEFAULT, // System locale 6 }% X7 z/ N. \ H1 b( I+ i &pokeID); // Array of IDs to fill on output ' h) Z$ {5 R; w6 r e . h- C% [. h; A" P1 @ if (hr) ' p* X. ~5 J5 S& Y {9 f$ }9 j3 K! E. n
MessageBox ("Get Poke Unsuccessful");0 m' M; `) X. m! L( ^
return; ! T" C, W C( [" C }0 E0 W1 R& Q( O, k! @
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/**************************传递数据给extend**************************************/9 [6 N* v) _+ ^# ]
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); r: | E$ i7 v! a' L
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 d& B& `* @+ g# M" N/ { VariantInit(&pokeVariant[0]); 9 i. f6 N/ \; M2 l# x. o pokeVariant[0].vt = VT_BSTR; - `; D$ D( J q$ ^" M pokeVariant[0].bstrVal = valueStr; 5 h& @' f+ [4 ~6 a# i' | ~ " Z+ E3 F `5 n( P# H: ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 W O- ] r9 Y VariantInit(&pokeVariant[1]); 1 J; n/ C8 O7 [7 h7 Z4 J pokeVariant[1].vt = VT_BSTR;/ `' @( g. ]/ f: h( H& F& F
pokeVariant[1].bstrVal = itemStr; & z3 t' h" \8 g7 n9 H: M8 d( C( W$ B* M g; [
topicStr = SysAllocString((WCHAR *) L"system"); & q6 m! A; e5 d: B& r. v VariantInit(&pokeVariant[2]); , }! G, U( r4 K9 X- E6 e
pokeVariant[2].vt = VT_BSTR;# T. O+ \ A8 l/ e) Z
pokeVariant[2].bstrVal = topicStr; . x- {) |- D$ Z& X5 V$ h) n8 _# U+ |; E6 g5 W+ Q) s1 T+ k9 n
// Set the DISPPARAMS structure that holds the variant. 9 }( d0 [+ h3 ~$ @# k; e9 F% y d0 ^; Y9 `3 ?
dp.rgvarg = pokeVariant;% U& \2 _8 ] Z, [
dp.cArgs = 3;9 O! u* L/ |- A3 q) v
dp.rgdispidNamedArgs = NULL; b) a; i* b+ c
dp.cNamedArgs = 0; ) O7 @: k+ O9 D0 x$ |. O6 B: {/ J4 _" ^; A2 z6 J% K( {5 h* a; @, }
// Call IDispatch::Invoke()! a4 ?" u, M, \) X, S" J4 S: }. C
; ~. z/ D _( m/ e+ B s! X0 @ hr = m_pDisp->Invoke( 5 S) G9 F: a; y- m: k$ L9 d pokeID, $ Y( q. f3 }5 u: s% E- B IID_NULL, : M' D5 x h( M5 H% ?2 u* M LOCALE_SYSTEM_DEFAULT, . x x- j! a0 d, [# R$ L0 w4 \ DISPATCH_METHOD,; y" k' p; F& C1 {
&dp, . q/ R6 Z% q1 n( M8 R- H/ } c NULL,# n$ i) W' o$ Y3 H- k: o+ p4 i j8 _
&ei,9 x2 I7 c0 {) q' P6 m) z# [
&uiErr); * ?2 F$ h* G) @% k% o1 W) I. ?+ z7 e4 O# I4 o# q
SysFreeString(topicStr);& F* W' I% d( ~/ w# d' u4 t
SysFreeString(itemStr); 2 H6 S- J0 ^" X. k9 }) s9 e SysFreeString(valueStr);8 P0 Y, a8 n# [6 [
2 P G9 f% G$ N6 b& [! s1 b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??? - ^( a- h" ]/ m4 v& x* f, f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???? ! w# |7 c& C" J% Q, W. S1 T. b / r4 q5 m, G, Q [" W; m: L0 o6 E $ C1 z; e' v7 g7 x3 \7 [2.这是request的程序0 s+ B& e2 {0 ^5 B2 a$ v" j8 ?
// Request a value from Extend3 U) t( Q' B8 Z; d8 g
//# o' c7 Q% b! i9 K
// Initialize the variant that will hold the BSTR. Set the variant's4 x! q! Z& [6 r
// type flag to indicate the fact that this variant holds a BSTR. Place the/ }$ H( y3 D6 U) J o \& S2 {
// BSTR into the variant structure. $ r, j1 J" w$ v7 \3 g1 i: l" ^% K. [2 i+ X5 Q' W. Q/ o9 K' W6 u" `
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# O2 f' c/ G- w, D, C: _2 z# {