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:9 T+ R. {) V+ A* p% @8 g
Name = (WCHAR *) L"Poke";' i( y& k0 z ]$ M
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hr = m_pDisp->GetIDsOfNames ( & z3 s8 Q: ^6 s IID_NULL, // reserved/ b8 b* Y! m8 A$ b
&Name, // Array of names to get IDs for2 [3 h6 i( S. m3 S. S
1, // # of names in the array ) O% W! _- M' o) E! @ LOCALE_SYSTEM_DEFAULT, // System locale % C' z3 P( ^- a( [6 i &pokeID); // Array of IDs to fill on output/ Y! N! v6 X0 O) W! [6 O* j( ~
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if (hr) ' d. X6 t, i3 ]! t& S9 g# W { . g7 g, l( z% s& d& z( i MessageBox ("Get Poke Unsuccessful"); R# V' U; [ p/ J return;& P, i2 d6 P$ s: _9 n5 E3 S
} , ~1 e9 y" O' X- g) f" R$ T$ ^ ; s ~" E! V! C! n4 P' [+ H- x8 u/**************************传递数据给extend**************************************/7 ^) l' T+ i! d# G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ n; k/ `' m' x' [3 `& L
1 U( Q* X* M4 \ valueStr = SysAllocString((WCHAR *) L"1232"); . {) G6 w s L9 z1 U# f VariantInit(&pokeVariant[0]); 5 A8 ?! Z% L3 [% R
pokeVariant[0].vt = VT_BSTR;; H1 Q4 i1 H9 Z4 _; e8 ]4 |
pokeVariant[0].bstrVal = valueStr;* M. t L3 J0 N8 O3 X& i8 Y
7 C/ R! L3 f7 t' ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 Z, z8 @+ `. r& m! l- z! d
VariantInit(&pokeVariant[1]); ' |9 s* S3 X/ P3 I' K8 w pokeVariant[1].vt = VT_BSTR; 0 |1 e: Q) U# M8 a& l6 p9 ?" E pokeVariant[1].bstrVal = itemStr;. S) s+ h. R8 G, K/ y1 k6 q
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topicStr = SysAllocString((WCHAR *) L"system");; @& Z3 `5 `4 t$ G. l3 g
VariantInit(&pokeVariant[2]); # ^' ? o! {; I# j) b \ pokeVariant[2].vt = VT_BSTR;$ D+ U) ]. J0 t
pokeVariant[2].bstrVal = topicStr; 0 I% I2 \# }8 |2 p5 Y1 q " I1 a- w& S5 Q// Set the DISPPARAMS structure that holds the variant./ n; A1 k$ k' s$ Y
! D& B# Z* H4 V. z$ P( j7 l dp.rgvarg = pokeVariant;4 T* p4 i9 T/ {5 T
dp.cArgs = 3;. u4 z. q5 q! \, D5 f1 J% R
dp.rgdispidNamedArgs = NULL; + A6 X' v* @1 R, n: @ dp.cNamedArgs = 0;# _9 [8 {3 s9 ]: X
: E7 j8 d8 T; q+ \ S// Call IDispatch::Invoke() \$ Q* o% F2 Y! X1 u
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hr = m_pDisp->Invoke( 2 x7 I( v" [5 q* L9 s0 V! ^! B pokeID, + i4 M e+ d( s% m IID_NULL,- x) c: u8 `$ D+ t; U7 z, i
LOCALE_SYSTEM_DEFAULT,9 J4 u$ L. x! l6 Q
DISPATCH_METHOD,8 W2 G" L6 n8 C# C
&dp," l7 H0 ]3 ?! q9 b. ~! d
NULL, 2 e2 G/ d8 r: y/ V( l* W4 x &ei, ; L a7 A5 D# V" B! n! I$ \0 n &uiErr);, |/ |" M3 s: G: {) H' a! `
" G+ x( l% E, W% R SysFreeString(topicStr); W& I: F! T6 _3 v
SysFreeString(itemStr);( L% @6 g! U) ?6 f6 M
SysFreeString(valueStr); ( G, n0 C* ]8 O7 [' K! e" F m. k5 Y& }, `$ X( ^
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???) o' ^" M/ |1 ]
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????; E1 J) L% S# x0 x8 T8 L2 Q
$ Y0 u2 w$ T1 O8 I1 r# W $ t+ Q/ R5 R8 v7 ~- E$ n$ s2.这是request的程序 : f+ M+ j; v* P5 C* u// Request a value from Extend) L" E/ S) z* @
//, }6 A2 e% Q* R( ^3 k6 W8 ^
// Initialize the variant that will hold the BSTR. Set the variant's! k% o$ d. c) k7 `* j! w, w( f; ~1 {
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 r/ U# t; G W0 ^, h& w4 W// BSTR into the variant structure.: P7 ^3 g: I! d- f2 v; f; o7 x+ e
) A7 a4 V- G# s# ~0 f L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: Y; a# C h8 ^( q0 b* a: T. P
' a* s. B9 z( ]$ ^! I2 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' L3 m0 o/ s" p# [- i+ k VariantInit(&requestVariant[0]); # f4 H: G; n! }" v% k S requestVariant[0].vt = VT_BSTR; & D+ g# `" F. S, V! B requestVariant[0].bstrVal = itemStr; ' G6 s) r% r: |' w$ e# @& j3 g5 C: s* U+ e
topicStr = SysAllocString((WCHAR *) L"system"); 1 c( } D$ s" d8 X1 T1 t* g VariantInit(&requestVariant[1]); ; V) c# @4 T) G6 w% U) K4 ~ requestVariant[1].vt = VT_BSTR; # h) o8 Q4 F! Q: }1 U requestVariant[1].bstrVal = topicStr;' `- h+ \* d0 }2 N* J( O
( j% l1 s, @8 p: u: R: J9 z// Set the DISPPARAMS structure that holds the variant. & h3 T: s4 l. D: W6 E5 V9 e% Q# z) }5 {+ K1 _4 R! |
dp2.rgvarg = requestVariant; " D/ B- h2 q2 ?9 O dp2.cArgs = 2;- i- y% }! D" M+ {8 a6 Y2 n: ^9 M' O
dp2.rgdispidNamedArgs = NULL;9 v7 |$ G7 U2 s: s' [
dp2.cNamedArgs = 0; - X3 R: ^$ r) ]- A6 i / m" u3 n/ T K8 u9 S1 H var.vt = VT_EMPTY; 5 [4 D) p4 J. p: l; D* k6 W( n( ]4 |: s; M
// Call IDispatch::Invoke(): A" u: A* {5 z. k
2 V3 M m U3 s) U1 ? hr = m_pDisp->Invoke( 0 e6 x3 O6 w* y requestID,8 D5 Q9 h s$ w* O. o' @
IID_NULL,, a2 V" y) g/ v
LOCALE_SYSTEM_DEFAULT, # n; V5 Q6 A" d DISPATCH_METHOD, ; k* C4 h% V; ?0 ? &dp2,2 ^. a* l# Y( q* |' n; k
&var,) I; _, {' a8 t5 ~( J& |9 r8 ]
&ei, q+ A+ m4 U, a1 z" E8 v &uiErr); 4 L3 N) H: m3 f( w- ^( Q, z3 ~4 t0 P0 F' g2 ~8 O9 Y- N
SysFreeString(topicStr);+ C# g5 g1 x+ M# J9 t) O" |
SysFreeString(itemStr); " B2 O8 P) Q" ]' R# u5 m请问该程序是获得extend里面的哪个值? 4 Q! U. S; r* E# h0 \7 ^如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????