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:/ b0 }& _ R8 R( Y! c
Name = (WCHAR *) L"Poke";4 X1 B" D3 [) \" [3 j+ e) S
' p+ Y% @% m( w4 T hr = m_pDisp->GetIDsOfNames ( ' ^: Y% j/ K" b8 B5 a2 O& l% h+ v IID_NULL, // reserved 7 x4 `- d( b6 Q0 i% L5 ~. ?; e0 | &Name, // Array of names to get IDs for 7 g7 V6 }! e( o2 E& _' X. R0 E! R2 C 1, // # of names in the array 8 _5 Q7 b7 F/ u; G/ t. s LOCALE_SYSTEM_DEFAULT, // System locale# V# \" ^. C2 C/ O$ K# I$ [
&pokeID); // Array of IDs to fill on output& E2 S4 W3 J" x4 f2 Y
, C K& ]& A' \# I/ e- U# D if (hr)7 S/ y2 V7 p; s7 S3 g4 B, E. X
{ 6 M' L/ P! l. N7 R* Z MessageBox ("Get Poke Unsuccessful");/ H, x0 P |$ U6 J: e7 w
return; ! e6 z; a3 m: E9 d4 N }3 Q8 Q; K; J6 {. B4 R: b; s# k, |( p
! l7 Q V, V: s) u1 F/**************************传递数据给extend**************************************/ " O$ V' D6 I: c8 V6 S5 H3 c" t2 t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 z6 V% Y# |$ J" Z & f. G# A4 U A" C7 b: Y. R
valueStr = SysAllocString((WCHAR *) L"1232"); / v" N2 ]4 F" l" b+ ?! p1 b* y VariantInit(&pokeVariant[0]); u; d" H% c7 K5 i
pokeVariant[0].vt = VT_BSTR;+ ?: s+ ^6 J) G% y9 k
pokeVariant[0].bstrVal = valueStr;6 f4 e2 X5 o+ k4 p7 E; M
, a8 ]2 C* K& m; y. Y6 w# w4 S/ ~: n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - Z6 I. P4 N, K: x; e VariantInit(&pokeVariant[1]); }/ N6 K$ u: \
pokeVariant[1].vt = VT_BSTR;$ D$ R5 `: ?3 `: L7 N- a" F
pokeVariant[1].bstrVal = itemStr;* i. x# x/ S. U( ?! a* a- J
+ p7 K* C& U, @0 N/ ~
topicStr = SysAllocString((WCHAR *) L"system"); " t* ^( T- A |! ^9 G* w/ ^ VariantInit(&pokeVariant[2]); 4 z6 u8 J- c3 P1 { x. a pokeVariant[2].vt = VT_BSTR; 6 I- C8 ~ s7 J- j pokeVariant[2].bstrVal = topicStr; 2 Q. Y% {# }7 u" ]* X2 w 1 f; D% D; u& A$ l' y8 _8 r' {// Set the DISPPARAMS structure that holds the variant.' T1 @2 q b( k5 {' }( ]! U
& R8 P: `* O6 k dp.rgvarg = pokeVariant; 6 T9 w7 C; ~8 d8 O4 l2 O dp.cArgs = 3;, j' u$ w' F9 ~6 i$ g. B- s
dp.rgdispidNamedArgs = NULL;. J% K+ b [' C+ U6 X
dp.cNamedArgs = 0;% c9 A# b1 j C" `5 L
) I" d2 M! S# N) T4 A
// Call IDispatch::Invoke()- K/ ^/ t6 l7 p& D7 a8 w b4 _! Q
0 i& n$ I; p% W( I' w9 ^4 p6 w* R$ u hr = m_pDisp->Invoke(. p, W% M0 B) b" A W
pokeID,# c1 _. q) W! _2 g5 M. ^9 F
IID_NULL, " d# y( b4 B6 a9 h LOCALE_SYSTEM_DEFAULT, ( v! B- a. q9 ~ P DISPATCH_METHOD, b$ m; F0 w: \4 _) K( {" }0 }: J
&dp,# h/ t' V ~4 G" V+ c- R; z8 l
NULL, 7 Z, w% T# |- Q' e& n6 x &ei,! u' p- T& S" x) u
&uiErr); 7 i* O* S. c! G: E$ A : o1 p) z! w- h9 S3 C# Q SysFreeString(topicStr); 9 ]* ?( |# E1 [9 B1 q- z6 o$ w4 Y M7 ^ SysFreeString(itemStr);9 a& X( E+ ]; `# L- X! v
SysFreeString(valueStr);! j+ C2 T5 B6 {: |8 P, p
4 C, ?* C8 @ i7 ?3 l+ G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???* A0 t* V; F5 B3 X7 N7 a7 u: ^
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???? 7 K) K, X6 |- r5 f1 ~& m1 z * h& |% u# l2 A" Y8 k ) Q( u+ {$ a2 m: V* I* G3 i/ Z- w2.这是request的程序, u5 p7 z: i, u
// Request a value from Extend - r6 }* t5 C! h: M+ ?) U7 G @//" o7 c {0 ~4 n( x0 v; G( r
// Initialize the variant that will hold the BSTR. Set the variant's + T2 ]- Z+ P0 A4 j* \$ G// type flag to indicate the fact that this variant holds a BSTR. Place the . g3 K% l' M6 N: `% c// BSTR into the variant structure.9 H1 X4 G2 l7 {' v6 |