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:8 h! I5 ]6 K; z6 G7 ?
Name = (WCHAR *) L"Poke";: [5 P8 T" m1 E6 y; A. Z; S* V
, I- z F, x% q hr = m_pDisp->GetIDsOfNames (' t7 k" x, Z8 ]0 V0 a
IID_NULL, // reserved+ D* k9 \* F" _& z: @
&Name, // Array of names to get IDs for2 [8 K/ n2 R+ [- d! x4 H* u* O c
1, // # of names in the array 1 `8 Z. e4 S; z LOCALE_SYSTEM_DEFAULT, // System locale# c) P, t+ W: H( \& n
&pokeID); // Array of IDs to fill on output& a( p- W1 r \
9 G$ ~) c' z! i- v& t; x2 ?. e# ^ if (hr); A# B6 k# f2 y/ A
{ 8 w, |+ v2 f& `: i5 ~" D MessageBox ("Get Poke Unsuccessful"); 7 m* s/ ]' s/ J! |& @" E4 G1 J: s return; 5 b* P8 U6 X: ?9 Y7 n4 p' ] } ) F, J) t7 H6 T5 _+ U: s _: P n' \# m/ n. P7 S, [% e' Z. n
/**************************传递数据给extend**************************************/ 9 X5 o5 `2 ?4 S- ?4 d, d. Y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , j# f* p' S" G# L( w/ v 4 C8 p. F5 [/ b( X, c J# m valueStr = SysAllocString((WCHAR *) L"1232"); + Y# H0 c# ]3 ` VariantInit(&pokeVariant[0]); # Y& Y/ g# F5 Q/ @( ^5 y
pokeVariant[0].vt = VT_BSTR; 5 k3 C# {- p) `! v pokeVariant[0].bstrVal = valueStr; - V2 e* d3 n- p 1 o% r1 ?- q# p5 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: S# c* b, o( H Z
VariantInit(&pokeVariant[1]); 7 i9 x$ f' s0 t% y/ t
pokeVariant[1].vt = VT_BSTR;' F% F+ @5 S/ K5 D$ w+ l
pokeVariant[1].bstrVal = itemStr; ; y. Q9 u3 q( X3 g' }- x9 J5 b+ }' a: r7 e$ m i! l
topicStr = SysAllocString((WCHAR *) L"system");( O6 C/ O% ~! i' E1 f0 F4 R
VariantInit(&pokeVariant[2]); 5 ]7 R9 K% t- Z ~ pokeVariant[2].vt = VT_BSTR;6 k! G* l+ z0 p. @. c$ ]; M: T
pokeVariant[2].bstrVal = topicStr; 8 h; [/ T5 B, B0 x2 L " a: a: ?9 p) ^9 r// Set the DISPPARAMS structure that holds the variant. $ v( ?& i+ A2 p) |1 S8 a( M: D/ ?7 H5 |; l* ~9 e$ w' d2 R
dp.rgvarg = pokeVariant;% C3 d4 W& t7 S1 C' ?+ }& ]' C ?5 n9 Y
dp.cArgs = 3;! [/ s9 n v5 f
dp.rgdispidNamedArgs = NULL; / d4 r: q& ^) T# \$ a5 w dp.cNamedArgs = 0; . J% g# h6 Q2 j 8 j0 g6 }6 ~4 B0 w/ i3 [- O$ u// Call IDispatch::Invoke() % f3 K8 P) c2 a# F0 Z* w " ^9 g- G# B/ p9 |" [; j9 K hr = m_pDisp->Invoke( 9 ?+ {( e0 W1 U( u$ b1 D pokeID,% {2 f7 J3 S2 c N8 M
IID_NULL," b6 B' M+ o, `/ v8 F: l1 I: o! F2 m5 K; j
LOCALE_SYSTEM_DEFAULT,3 V) ?7 N; v+ v
DISPATCH_METHOD, 8 t* A: H+ Q0 G2 s- J* Z: h &dp,: n% B0 P3 ?! x! V1 R* Q
NULL, 8 P& }7 ^ ]0 H C &ei,# C& d" \* y+ I5 @6 h3 q1 f1 w
&uiErr); 5 i/ e1 U: _- |! W 9 \( n) `2 m k5 s SysFreeString(topicStr);. a( u5 B+ B* p. x: W2 Y
SysFreeString(itemStr);& E- y8 |8 {' W: ?, l+ [) m
SysFreeString(valueStr);! R6 A# T' I* P5 E1 u# N6 u0 W
) X R" p! o, a3 i; u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???6 G2 F ?: a' m& F" v: 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???? ; e3 b5 z0 P& v - X9 ?, g/ t% r4 i* V8 r9 ~ 0 S1 d4 s0 |6 v2 w2.这是request的程序 " P7 W6 X6 O% J$ T: j/ }// Request a value from Extend - I* N( V2 `# k// 6 c. k9 H4 T% u' C# v7 k1 ]- M// Initialize the variant that will hold the BSTR. Set the variant's e& [3 @5 {8 w2 S2 E
// type flag to indicate the fact that this variant holds a BSTR. Place the 7 F! `% |" W7 n/ k$ R2 W4 g$ e0 F4 K// BSTR into the variant structure., S X$ v3 C$ l# D2 l e) R