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:4 i) B/ C: k% h, v
Name = (WCHAR *) L"Poke";, M* T" P0 j; `/ z* O/ g
0 u3 u# z8 B4 K. ^ y! e8 P hr = m_pDisp->GetIDsOfNames (' {) @2 I. r& R, \; d: n8 ^
IID_NULL, // reserved ; |' ^- {8 ^+ [: q: O' w &Name, // Array of names to get IDs for2 `! _! D. z" `4 @4 w6 Y
1, // # of names in the array ; A. t4 ?' C3 B$ T8 \1 B LOCALE_SYSTEM_DEFAULT, // System locale3 t3 x- L2 c0 I' ^) ]8 m
&pokeID); // Array of IDs to fill on output E A. h2 L: `( O$ p 2 `5 p2 _! x" J0 C( m5 C/ } if (hr) M( o8 z: L& p7 u/ ~ { : I5 s i" B) H& U) O1 q MessageBox ("Get Poke Unsuccessful"); 5 N# \* a) g2 `* P/ i7 h5 t return;, Q2 P( H. K( H; P0 |
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( C+ f, V" p3 G/**************************传递数据给extend**************************************/ 8 _( k! r" b$ I; E8 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / c2 Y0 z2 @6 |. y$ Y5 ] 3 n! ~ L% M% u1 r: C4 k
valueStr = SysAllocString((WCHAR *) L"1232"); ; w4 C2 {, B7 l5 f) I) c3 W VariantInit(&pokeVariant[0]); 0 C, J4 y+ E! ?/ ^; ~( ~: N pokeVariant[0].vt = VT_BSTR; & J7 G( J) [. I* _. B9 z pokeVariant[0].bstrVal = valueStr; 5 W9 l" P# U8 U$ x0 d7 B1 H- B6 h" A8 u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / u) `3 ~1 d l2 k% C VariantInit(&pokeVariant[1]); 7 z6 P' i3 c f3 |7 ^, g1 R
pokeVariant[1].vt = VT_BSTR; ) j; a# a4 J5 l0 j, P pokeVariant[1].bstrVal = itemStr;' c' h) h* L& U6 Z# A
; L5 {* j( @4 j) `6 b$ R topicStr = SysAllocString((WCHAR *) L"system");! _' O) \9 q- {" N) {+ L
VariantInit(&pokeVariant[2]); % H5 y5 V: V+ t" A& \% r! Z pokeVariant[2].vt = VT_BSTR;1 e3 ]# y, q0 G/ B
pokeVariant[2].bstrVal = topicStr; , ]1 ?1 C# ]$ p6 L$ B& Z! w* r! ~% ]
// Set the DISPPARAMS structure that holds the variant.# ~0 o Y8 |1 P0 D/ N2 f
% v: p4 r6 Z! m; v& h7 ~ dp.rgvarg = pokeVariant; 5 p+ J5 u( u3 c- x9 B# \ dp.cArgs = 3; " o7 J) B$ n' @ dp.rgdispidNamedArgs = NULL;' R& @( T7 K7 B
dp.cNamedArgs = 0;4 M# O% H0 @% F' B3 Z' t2 x
0 S, N* c& ?' [# J- A* j// Call IDispatch::Invoke() 5 e/ N# B; |! d/ S( N+ b, ] - i+ U1 K0 v, r- F0 `- \# t1 x7 o hr = m_pDisp->Invoke( + u) V. b' U3 Q$ W- W pokeID, 7 G' i! b! F. x* y. m IID_NULL, , [* b( ^, ?5 b1 e6 F2 d$ \ LOCALE_SYSTEM_DEFAULT, f- D9 p1 c% Z
DISPATCH_METHOD, 0 h- n# s! ]- @& N! [. i6 p &dp, }) ^, U% I( k2 _7 S
NULL,' l2 {/ x2 g4 `4 a
&ei,, {0 l9 x `( d2 K6 H) n) G
&uiErr);% }4 {# T. ~8 q% w9 r
2 u; S+ A" _5 `4 K SysFreeString(topicStr); f) D6 ?/ D) x( _, L0 F& _
SysFreeString(itemStr); 1 H$ c6 H/ a+ @5 ? SysFreeString(valueStr); + \! b$ I& k! M! K+ l4 J$ a2 A/ K6 y! a' u a5 r' {, ~, m
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 T# n' U4 Q( v) Z+ a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????* y; i$ Y: W( g
9 V3 T! u0 \, s `; R 6 s/ {% ^% X5 P7 U) v/ X7 T2.这是request的程序 9 [/ a K2 s1 {) W$ t- H// Request a value from Extend 3 O V* y! T2 v; e3 m' r// # e+ j6 `. ?: c4 H// Initialize the variant that will hold the BSTR. Set the variant's , b( {3 h6 O* H8 h& l// type flag to indicate the fact that this variant holds a BSTR. Place the% D0 d* j8 F1 ~' R. K
// BSTR into the variant structure. # k: |; W% c# I& j$ m! T$ D# S) m/ \* T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) F) D# @" V! Z# E