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: ; `2 Q P, h# x) a8 i3 c4 DName = (WCHAR *) L"Poke";: c4 u7 O; T6 k/ `# R3 x
2 z }. x. m8 G1 R
hr = m_pDisp->GetIDsOfNames ( $ t) t3 T1 a2 k1 ] IID_NULL, // reserved 7 s5 i1 D7 w! J; i3 e, ] &Name, // Array of names to get IDs for + W( m3 C1 x7 b. K 1, // # of names in the array) O% Q* w' j9 ^: P8 l
LOCALE_SYSTEM_DEFAULT, // System locale ( f% A* M+ ?% B' {7 a- l& i &pokeID); // Array of IDs to fill on output % s' H7 `9 u5 e0 ]! B' n ; K9 e: {, l7 t% a: v6 Y/ I if (hr) 7 x/ `3 k8 m# a- X( a: k+ M: E, x {3 H/ i3 a7 q0 z8 z3 b
MessageBox ("Get Poke Unsuccessful"); / P* G Z$ f8 B8 D0 y return;" Z8 d* z9 r$ L" \, z
}3 y2 J- C- F! Q: S
2 h6 T! i: W" W7 }2 w, {: w/**************************传递数据给extend**************************************/( k/ o, J& ^: Z! R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! Y7 J: M R. U( E. `3 y2 c
3 G; q7 t1 z4 l
valueStr = SysAllocString((WCHAR *) L"1232"); . v5 e; V7 S9 S( d0 t VariantInit(&pokeVariant[0]); % K! U/ r. ~5 t4 {- N6 r7 r2 P' R
pokeVariant[0].vt = VT_BSTR; . H" T: i* R3 K- V pokeVariant[0].bstrVal = valueStr;* _8 U6 G& G; ^) |! s' y2 W
. t) V# r0 S. t+ o+ X/ u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 l8 p0 M0 c: d; A* K( w2 @4 L
VariantInit(&pokeVariant[1]); 0 C; n! r; ~" |& ` pokeVariant[1].vt = VT_BSTR;( |. L6 D. V* d& m o
pokeVariant[1].bstrVal = itemStr;# H- {- O6 c" ~& N( C
4 O5 ^- _$ ^6 i# g: \- ]( z topicStr = SysAllocString((WCHAR *) L"system");: O5 o+ `% p4 d: F3 U
VariantInit(&pokeVariant[2]); 2 _, h+ ~: b3 ]6 M( c# U) A pokeVariant[2].vt = VT_BSTR;5 @6 C$ A7 I5 \/ Y. S) Z; }8 B
pokeVariant[2].bstrVal = topicStr; 5 Y7 r7 w8 t: V) c* D & r; q; y! s! q9 Y9 D: X// Set the DISPPARAMS structure that holds the variant.: a. l' P2 c3 h4 ~8 [& h: S! b
) V# R) n% u; _9 c dp.rgvarg = pokeVariant; * N5 e8 r8 H2 m dp.cArgs = 3; : L+ Q1 D6 a7 \( R0 Z E dp.rgdispidNamedArgs = NULL; , v3 C- D# s! [5 U7 ^# L" O dp.cNamedArgs = 0;, d! B4 h9 W& t
# p; G- q* K! `3 u5 Z
// Call IDispatch::Invoke() " r+ m, {5 v: a. j6 E" g7 t/ b' W: L) T7 t) l( l# G- U
hr = m_pDisp->Invoke(' g" q: N5 `- _) o0 M- ~
pokeID, $ q, `' y! b4 M: @+ `5 |5 o IID_NULL,6 X+ B* i$ }$ d! v/ {$ E
LOCALE_SYSTEM_DEFAULT,4 `' G9 x+ T1 [0 ~3 U+ F6 ]
DISPATCH_METHOD, 0 ]2 E' ?1 x( z" w5 ^& e &dp,+ t7 k) s; b" D' v# w) {5 w& H' U
NULL,3 L7 ]2 `5 |! R
&ei, : f, P* v% S6 Z6 l6 N G" K5 V1 v &uiErr); / D! X$ u/ Y2 x4 V3 @* M4 w! T$ a8 I; t% R2 V
SysFreeString(topicStr); + c& ~# l/ C O* }% H5 `" Y6 T1 w SysFreeString(itemStr); % R9 Q- V9 m% q7 [ SysFreeString(valueStr); 6 w" n4 `3 B8 N& Q# b) x |) o( n& l- L h8 s
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??? ) T9 |2 e7 A6 `' a, i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???? ; i$ j8 ]7 N* m0 S, [% ^0 X' i5 v2 Z7 e
5 c9 \! k9 m: e7 n4 z2.这是request的程序/ p1 a( H/ O4 y# r) i( k- Z) n( B
// Request a value from Extend ' G9 T2 L$ u7 h) B" G//% T4 U9 n. K. W" P- @5 j) i8 @
// Initialize the variant that will hold the BSTR. Set the variant's , D4 Y! X& h5 ]' H- {" p* ^// type flag to indicate the fact that this variant holds a BSTR. Place the1 S8 x/ t1 ~* _# U0 {# d
// BSTR into the variant structure.! V/ v4 l5 m" g: P0 v% t+ A
' R+ P6 w! p! B% x; t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : J' T5 s- j; v4 i1 R" Z 6 J' b L( q3 y# @) d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ? d5 }9 m8 D, b4 s$ a! z3 r VariantInit(&requestVariant[0]); h2 p7 @( W7 y; ? requestVariant[0].vt = VT_BSTR; " F& R F( p1 g5 n( L1 w3 o% c requestVariant[0].bstrVal = itemStr; ' n& m1 @; S& C# J4 K1 X5 _" D6 }1 a4 g; d0 @( T1 ?8 j% T5 [
topicStr = SysAllocString((WCHAR *) L"system");1 Z) z' L% b' E
VariantInit(&requestVariant[1]); $ [1 a1 K$ f/ O, k% ] requestVariant[1].vt = VT_BSTR; 2 u& O5 n. G5 f5 i8 ^ requestVariant[1].bstrVal = topicStr; 0 `+ G( v6 g- ] 5 a" h8 P$ O+ R// Set the DISPPARAMS structure that holds the variant. " e# k' M1 D9 G & `- `* ]/ v) @9 N1 \2 \8 D dp2.rgvarg = requestVariant; & z( n; x7 ~; z3 f- D. U dp2.cArgs = 2;! v. D$ H4 A9 k' Y/ t* d2 u( x2 y4 o
dp2.rgdispidNamedArgs = NULL;+ w" j' c: r1 c* b7 C8 C. \
dp2.cNamedArgs = 0; / j) K, N$ _( X7 _5 ^& ]& j7 Y& T Q6 [& L: ]
var.vt = VT_EMPTY; 5 l# I+ Y# u0 ]5 w6 ^( h3 X( o4 E. u1 t# p) m1 @) n
// Call IDispatch::Invoke()$ u6 O) C' X/ j% H' S" n- {