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: + z9 l9 X# G0 }, NName = (WCHAR *) L"Poke";5 A" L6 t# {" R4 W
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hr = m_pDisp->GetIDsOfNames ( ( M% L; e" W' @1 U# w. { IID_NULL, // reserved+ Y$ [: B3 y+ J7 |' x. \2 J( a3 Z
&Name, // Array of names to get IDs for " j' _5 e; A& N4 Z 1, // # of names in the array 5 R) i& x7 J+ }# R3 Q LOCALE_SYSTEM_DEFAULT, // System locale% y0 {8 R8 X4 e) K% U6 t c$ B
&pokeID); // Array of IDs to fill on output" O* Q, X3 W! F! R1 m. Q( p
( ?8 Y5 z/ M' F0 n( d if (hr)% ]8 J, _1 n0 l+ q0 o
{( B! ]1 H) A+ M0 l) {
MessageBox ("Get Poke Unsuccessful"); * Z: L9 }+ [3 S) T. q return;) J2 Q1 Q5 \: W9 s
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/**************************传递数据给extend**************************************/5 E. h8 ~6 V a* x; O6 Q$ V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 s; ~& c' A" p6 D- k5 i: `
) C1 Z2 ^8 p4 Z; f! I1 {% [ valueStr = SysAllocString((WCHAR *) L"1232"); + v' B- N3 b" z- J+ G VariantInit(&pokeVariant[0]); ; k! ]9 `% z5 ?* h2 V5 D& z9 o, M pokeVariant[0].vt = VT_BSTR; 1 \: L4 Q9 _: l; U3 P pokeVariant[0].bstrVal = valueStr;2 C4 L, j; O, S# l: p
, G/ F: W4 ^+ t8 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: f' k/ H3 J5 @4 i2 X
VariantInit(&pokeVariant[1]); 0 X5 s$ o. O( A: |. z
pokeVariant[1].vt = VT_BSTR;. i& ?( R. A( W6 p
pokeVariant[1].bstrVal = itemStr; # I/ i9 Q) `7 m& ]! C. H ! S1 i5 o1 @! s# s: y7 A% Q/ F! X topicStr = SysAllocString((WCHAR *) L"system"); 4 \, _, Z! L4 ^1 ]. A0 u9 C v VariantInit(&pokeVariant[2]); 3 v8 Z/ j1 |/ C pokeVariant[2].vt = VT_BSTR; 5 T) l2 n0 J) N( r1 @ pokeVariant[2].bstrVal = topicStr;) j9 D+ P2 T- s1 i
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// Set the DISPPARAMS structure that holds the variant. - o+ X/ @3 |: P+ m6 p . _1 i+ ^4 z- L, Q' N dp.rgvarg = pokeVariant; ( V1 {2 h r8 C* d" D2 j4 ]$ ^4 S dp.cArgs = 3; % o; b; p2 r/ n' c+ O7 x$ w dp.rgdispidNamedArgs = NULL;1 p U+ \8 e6 d8 p4 g4 C
dp.cNamedArgs = 0;! R3 y8 t. @2 k% w8 _, x' T( d
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// Call IDispatch::Invoke()6 H \( }+ w2 M7 F9 A5 p3 z
; i, s( v) e. ?( C1 o# ~ hr = m_pDisp->Invoke( 7 P$ f* c( }$ \0 s# L pokeID,7 b8 X9 j4 [* N
IID_NULL, - B8 h/ p) P1 ? LOCALE_SYSTEM_DEFAULT, 5 X6 e% n7 e1 ]! w0 O DISPATCH_METHOD,# k; w/ H6 P6 i+ h2 c0 F& D; m; s
&dp, . B' Q/ F8 G& c NULL, " e/ v) m; h! m+ \( F' D &ei, * v; `; C, }: a# X, w &uiErr); 4 C$ b1 y2 Y$ |3 I4 L8 `( [- u0 E4 h2 i8 i6 u, Z
SysFreeString(topicStr);- `. |3 c, m0 K: |0 M0 _5 ^
SysFreeString(itemStr);9 |- W6 O& X% W3 h
SysFreeString(valueStr);# z: F8 M5 k h) d* C+ f
- X+ f( O# {% p! R# Y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???7 D" Y8 ?. G7 Y) e
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????" T+ g# [, ^6 ^4 R! d" g
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2.这是request的程序 ; s+ F8 m& p5 l- `+ f# }& V4 _- r// Request a value from Extend 3 x- |) N2 a1 [// 9 T/ d+ A$ ^9 h7 O$ n/ \$ n' O3 Z' A// Initialize the variant that will hold the BSTR. Set the variant's 2 J$ B- w9 ?7 ~% l) \// type flag to indicate the fact that this variant holds a BSTR. Place the7 M0 B" m6 w0 O. H) G
// BSTR into the variant structure.( u4 \' [5 ~* f2 A$ T