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: / l% e* D/ \* f; u' WName = (WCHAR *) L"Poke"; " r4 {0 j' [0 J- L r- z* | " A% S% k5 b. j# d; ] hr = m_pDisp->GetIDsOfNames ( 5 ]9 y! i8 u* s0 p7 u8 A IID_NULL, // reserved- t. E8 I4 ~8 |( h1 u4 ]2 ^7 ]" Q
&Name, // Array of names to get IDs for4 N9 Z& f+ P6 d# \; C
1, // # of names in the array; ~5 |6 x, q4 I9 _
LOCALE_SYSTEM_DEFAULT, // System locale N7 o8 y0 ]- c& I' M/ A" {- y r/ x
&pokeID); // Array of IDs to fill on output 3 \+ ^# l3 ?3 f2 x0 z, o+ X / K% T& D. X' g! c
if (hr), s/ U4 j- {: Y# T$ C) Y( b8 ?
{ ! V; f9 Q0 l2 s! s MessageBox ("Get Poke Unsuccessful");% x2 T+ }7 O6 O
return; & s- t. g5 |3 U' w! c# w, C } - P! V$ N/ \ S! s2 r- e6 g: V; M# q, Z' `5 H
/**************************传递数据给extend**************************************/ 7 J1 c+ B% ]1 Y9 \/ e0 b5 |8 w0 a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ o0 S1 f$ D7 q) c& [
! E" G4 v7 c7 y% b$ r6 N2 \ valueStr = SysAllocString((WCHAR *) L"1232");( @' x2 ~- ? W d2 G/ ~
VariantInit(&pokeVariant[0]); % r9 L; w2 Q" M! E, n6 x
pokeVariant[0].vt = VT_BSTR; * e4 `( @7 k) e8 q1 O z; T6 D5 G pokeVariant[0].bstrVal = valueStr;1 F6 W3 |/ l$ @5 A1 v" b
- t* ?: c6 F b) S5 ]3 C( U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 }3 e+ }6 x' `7 M* W6 E a+ `5 J
VariantInit(&pokeVariant[1]); : ?2 `) R% G( S# k
pokeVariant[1].vt = VT_BSTR;- w, O5 A4 g& u: `
pokeVariant[1].bstrVal = itemStr; 1 \$ i# W: o* [, C1 i3 H+ H$ x" O! Z& @+ Q8 H/ x
topicStr = SysAllocString((WCHAR *) L"system"); 0 h2 N9 y+ ]1 @9 s VariantInit(&pokeVariant[2]); z2 @ J I; M8 [! G pokeVariant[2].vt = VT_BSTR;! X2 O; A; j, [- H/ w+ Q
pokeVariant[2].bstrVal = topicStr;+ P7 v6 w; `1 r5 o! U
4 v! n# C# Y5 r
// Set the DISPPARAMS structure that holds the variant. * p( j" H* D3 B/ s; x, U" G# p8 M& n6 y# i" w5 y3 w0 D" \( O
dp.rgvarg = pokeVariant; 9 \+ r) p9 y8 G( ]: ] dp.cArgs = 3; 8 l) x4 S) ~! }+ e* n( ] dp.rgdispidNamedArgs = NULL;1 ?4 f% x# q5 l
dp.cNamedArgs = 0; 8 d9 X6 k& I; n) w" k4 R+ d; L% T7 G
// Call IDispatch::Invoke() ! s4 x- V0 | p6 I: u: n- w; W- A1 O, G
hr = m_pDisp->Invoke(8 l+ E, p* d3 d8 U4 _8 O7 l
pokeID,/ a+ t1 a$ O5 k N% d
IID_NULL, 1 y4 O) R" S* M, h LOCALE_SYSTEM_DEFAULT, ( z& j$ q& l) h6 g$ M0 s: \! J$ R DISPATCH_METHOD, + {% y% [% `; U, P' K$ ]' z &dp, / O* N$ K: ?. ~3 h- X' ^ NULL,: r9 y& e& b7 u; F
&ei,' _( J* I. j2 _: [
&uiErr);; E5 x, M4 d0 ?! @! }
/ y9 g, y0 b5 G1 x- [ SysFreeString(topicStr); ) l! a8 o! Z# O SysFreeString(itemStr); # S) @0 L6 k6 E. p7 i4 D7 C SysFreeString(valueStr); 1 s- W9 v8 S6 q. m2 z2 u % Y2 e S8 b# n" ?; D. w5 ]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???/ y: x O) s" F4 A# R
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????) j3 G b% w G7 w( H
, |% Q. o3 E; W+ n+ Q+ I( L2 n$ a3 M2 {8 b+ T, y
2.这是request的程序 3 b) [0 N3 s) s// Request a value from Extend 7 ?$ q& P* ]5 U* n E9 B4 w( I//# z% {7 U# s: E( d9 H
// Initialize the variant that will hold the BSTR. Set the variant's: X7 m! S5 ~0 D# K, Z" e/ Q& ^
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 e4 r9 x3 @0 T1 {3 e. G' X) w0 R// BSTR into the variant structure. & l3 I' m& I$ L9 H- r+ P& a( v8 n9 m9 w0 C4 ~
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; M! z7 V+ T# P0 `$ s: b