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5仿真币
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：
. I- r; n- s' x. S: I. l! i+ aName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (# N" E9 P: E6 U) K2 A# b
IID_NULL, // reserved& h$ X$ { C( P- K- [; Z) u
&Name, // Array of names to get IDs for9 L+ ~8 i+ V4 C
1, // # of names in the array8 |. P" |$ D- Q" Q% l
LOCALE_SYSTEM_DEFAULT, // System locale, S/ u& [# o' p/ `
&pokeID); // Array of IDs to fill on output% f( |, ~' }" j3 v' _3 q
3 Y7 f$ X; G1 h- u# s0 ^
if (hr)9 P0 q& S* a" G& x/ k
{
% @" z9 ~2 k: y9 o* r6 e4 J. u% [ MessageBox ("Get Poke Unsuccessful");- u) T! K }, S4 @ L/ G
return;. ?6 Z$ W% [& T
}
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/**************************传递数据给extend**************************************/
! y) l/ M2 H5 D: A0 w, I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");" T% `7 e+ o) z* j8 r. W6 I
VariantInit(&pokeVariant[0]);
# x3 E% Q3 }% W+ `& d7 g! f0 p" x. B pokeVariant[0].vt = VT_BSTR;
1 Y- }3 o C( N pokeVariant[0].bstrVal = valueStr;' T( |/ P/ F6 n/ w$ R% _& `
' T! ~5 ^, d B; Q/ G3 O8 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% k5 T, f& }3 q+ |7 ^$ M! K- s VariantInit(&pokeVariant[1]); , U7 G0 f: n' h" N% G( a2 q8 W
pokeVariant[1].vt = VT_BSTR;
( b2 E F6 e' U# d7 I pokeVariant[1].bstrVal = itemStr;5 Z* c+ B/ e: {- I3 c
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topicStr = SysAllocString((WCHAR *) L"system");
/ y( l( m0 ~ v9 f VariantInit(&pokeVariant[2]);
, a* e9 y& c9 u5 p9 j# H pokeVariant[2].vt = VT_BSTR;% p' e/ n+ X, C" N
pokeVariant[2].bstrVal = topicStr;6 ]5 F' w! ?; P! t
2 \7 e2 N' n# F) L; U6 L( h// Set the DISPPARAMS structure that holds the variant.5 ?: y: J, l$ Q q' `6 K
" ~: }9 V+ n3 e4 I) R$ \ dp.rgvarg = pokeVariant;. k4 m9 G! a6 ?3 `
dp.cArgs = 3;
" Z. b! V) [$ E+ D5 m+ V) o; O2 n dp.rgdispidNamedArgs = NULL;1 K# O4 }+ b( Z: j6 S
dp.cNamedArgs = 0;
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( _ u. P- E U* F) Q d5 e// Call IDispatch::Invoke()8 t" G. F; k. _# M( p& e
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hr = m_pDisp->Invoke(0 f2 [. a4 \& w
pokeID,
8 g! k5 D# X+ h/ N8 ` n8 o1 G; m4 h IID_NULL,6 A; d9 m- E) @: G: Z, d" D( x, ~
LOCALE_SYSTEM_DEFAULT,9 s+ ]) Z- V4 R% p: q5 u
DISPATCH_METHOD," d0 g5 o5 i6 |2 m2 L
&dp,+ X+ u9 V0 l, c3 l5 }1 c
NULL,+ o+ x6 @9 Z( E
&ei,4 }# m0 f; ], R+ t, K# Z
&uiErr);
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SysFreeString(topicStr); u- _+ [: b$ J; Q/ h
SysFreeString(itemStr);5 Z. K$ a# @* |, S
SysFreeString(valueStr);+ f! F/ S8 h9 R" I' [9 w
! Z' n, S d) V+ l
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？？？
9 g5 i/ h) H& e/ i3 y/ [% D# E2 J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 z# H; c c) J* ]5 C$ R- X6 P
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! c7 N4 K! \1 F) O2.这是request的程序' u0 ^; q$ b8 }0 B4 R$ V
// Request a value from Extend* h( z7 x' O1 @ o
//
* K& q1 ^& @) J1 H# o$ T7 V// Initialize the variant that will hold the BSTR. Set the variant's- @! K6 a: q! ?0 C0 v
// type flag to indicate the fact that this variant holds a BSTR. Place the/ T5 K- e/ }; c H; w$ [) @6 N- }
// BSTR into the variant structure.2 F- X) M/ ^0 {7 ^/ I4 ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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/ j) u- |" e9 K' f$ { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# J3 z: _6 v5 v8 ^7 q
VariantInit(&requestVariant[0]); . ?7 {2 D: o G Z/ Q) ?/ T* F: e
requestVariant[0].vt = VT_BSTR;
z/ `( u% H; A requestVariant[0].bstrVal = itemStr;) S/ o2 s! k/ }" v
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topicStr = SysAllocString((WCHAR *) L"system");" W9 Z( k: `9 S, d
VariantInit(&requestVariant[1]); $ Z4 k' z# \' ~
requestVariant[1].vt = VT_BSTR;, x& n! g6 c6 E C
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.: m8 J; m+ ^; Q) R8 E
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dp2.rgvarg = requestVariant;
7 e0 {9 b0 Y9 @* r9 X dp2.cArgs = 2;* r- [% ?7 @( a# d3 m
dp2.rgdispidNamedArgs = NULL;) n! T( p6 u0 A' u; @( z5 U, }6 G
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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0 o9 K* r# a0 r0 u: E4 o// Call IDispatch::Invoke()
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) {1 R k1 z- U- ~9 T0 ]) T3 I hr = m_pDisp->Invoke(
6 ^* u5 V! w0 x8 c requestID,# ?+ Y3 n& \) ~8 K' x% l
IID_NULL,: x' X( z2 s+ n6 T0 r8 e9 }
LOCALE_SYSTEM_DEFAULT,) j, |8 e0 B2 G9 h. Q+ r
DISPATCH_METHOD,
2 G2 X+ a& N' N3 i &dp2,) o3 f, x2 ~! H0 j$ _# V O; A
&var,, y3 d1 d U# V+ Z) o- y
&ei,% g5 J6 r; N: }1 T/ d5 U
&uiErr);
) `# x1 x }" X6 j f3 @
6 x, P; A; Z, ]3 n SysFreeString(topicStr);3 U, m. U& l. L; U
SysFreeString(itemStr);
( X& ~5 A6 _$ x; \# A4 E请问该程序是获得extend里面的哪个值？) O x/ R2 q# U5 i" w
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？？？？ |
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发表于 2008-11-25 19:37:03
