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: 6 n% t7 l( l" T4 ^ o( g" f% UName = (WCHAR *) L"Poke"; * E7 ?" H' h: t$ ?4 l , C8 W5 t9 e) @1 @1 l
hr = m_pDisp->GetIDsOfNames (7 q* q6 l x+ u/ T5 e5 [
IID_NULL, // reserved: g$ O. i/ U- a: [ i% M$ u8 z
&Name, // Array of names to get IDs for! A; U3 @0 x; l: r2 ~! {
1, // # of names in the array! L9 r0 N a) V- d3 {5 f
LOCALE_SYSTEM_DEFAULT, // System locale9 ^3 i( G( G' A
&pokeID); // Array of IDs to fill on output / B2 Z( m9 M- `# c* h 9 n: y% i9 k: y if (hr)' w2 t; [! ]/ [& G8 G
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MessageBox ("Get Poke Unsuccessful"); 5 ~3 B( b+ j5 i, T% E& q% n return;3 I# W+ F N- `0 h* _9 |+ o7 M
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/**************************传递数据给extend**************************************/ # X7 r8 r0 L* ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : m9 R$ V' \- e- G# Z( n 4 t8 N" @$ D9 x- I2 w
valueStr = SysAllocString((WCHAR *) L"1232");8 f3 d& I' q+ s: l+ `
VariantInit(&pokeVariant[0]); 3 L( e! J" ^" c* |8 j pokeVariant[0].vt = VT_BSTR; 1 c: Y. A* Z' I0 Q6 g! D pokeVariant[0].bstrVal = valueStr; ; V2 M3 m2 m0 d4 F # V5 F8 m1 l5 N" p1 }4 Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % K2 Q3 _ g$ c+ y. I VariantInit(&pokeVariant[1]); $ p* t \3 V4 r/ {+ C
pokeVariant[1].vt = VT_BSTR; ) Z+ H \, Q+ V8 r5 ?; C pokeVariant[1].bstrVal = itemStr; ' ~9 a' v8 T$ A' i ; O+ Q; M2 y3 g7 N' ]' z( c4 B topicStr = SysAllocString((WCHAR *) L"system");' w. {( K b- N* w* A. }) p
VariantInit(&pokeVariant[2]); 3 Y* k3 k1 G2 H pokeVariant[2].vt = VT_BSTR;$ c' G; L2 K& o+ {2 B; m( T( e4 Y w
pokeVariant[2].bstrVal = topicStr; 6 S; B8 @5 F/ w2 W; O9 h " a& t( u7 ^8 X1 ^. L// Set the DISPPARAMS structure that holds the variant., P6 o0 m! w' W, y9 f: K7 a6 l
/ {8 V( u. N1 @! V# C) M- k0 m dp.rgvarg = pokeVariant; 9 Q% E4 C- D: [8 o- R% w( X: m! U dp.cArgs = 3; $ b7 K; i8 i+ g dp.rgdispidNamedArgs = NULL;- X2 v0 s. `: E
dp.cNamedArgs = 0; . R9 a4 ^/ ] P' W+ R0 d- t6 Y0 B+ d* f4 b+ u1 i4 @% Y4 c
// Call IDispatch::Invoke(). A$ B5 c3 V; \+ \
, [" U* q3 r. c0 ^( K, J- Z hr = m_pDisp->Invoke( ( d N1 a1 h$ k0 V, b y' p pokeID,4 \2 J" {8 V+ i
IID_NULL, - T' z. y1 H* C m/ { LOCALE_SYSTEM_DEFAULT,; \( g8 i6 ]' f& a* V5 e
DISPATCH_METHOD,: K1 p9 q6 f2 s9 M. }
&dp, 3 D) \) o' g5 {0 {* { NULL, 5 q' S" @% d: ] &ei, 6 }% z9 r1 U: u4 [$ ? &uiErr);- `7 Q% L7 n1 ^2 l+ H$ J
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SysFreeString(topicStr); / I' H* A" y0 n: b0 D/ | SysFreeString(itemStr);" x$ O: z: b N
SysFreeString(valueStr); 2 p& ^7 t: p( t! m: F+ w4 B ( A/ h2 U& u, j& A1 d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???2 F( n' \! p* @0 x% s4 d( O3 ?5 D# F
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????/ _4 t5 H& S5 E; g
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2.这是request的程序5 I* w1 @0 Z g4 g" f
// Request a value from Extend6 d I7 C6 ~1 P- }
// ! I- j# L2 c4 Y& z// Initialize the variant that will hold the BSTR. Set the variant's) h7 G# \9 Z; B s" ?, C
// type flag to indicate the fact that this variant holds a BSTR. Place the0 [& @6 q! h8 e# t( }. [
// BSTR into the variant structure. 5 U" G& w4 p3 a2 W N2 k- x+ T0 e 1 y) h5 ~# J8 h1 \$ r; H% ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; K5 d! G3 o1 |% j$ F