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:
1 ~7 U& v2 n, j8 T5 P2 h( S @4 o Name = (WCHAR *) L"Poke";# z! M3 c4 g8 R7 | r, S
9 \4 M8 C- t5 N! I) S. j* N hr = m_pDisp->GetIDsOfNames (- b' F1 q4 B0 D0 D! R1 t* ~4 ~
IID_NULL, // reserved. u1 Y3 ] V0 U
&Name, // Array of names to get IDs for
* ^# s2 U# I- p" |3 J0 H8 o3 h `9 V 1, // # of names in the array/ m" u3 u- `2 U& ~4 K; g
LOCALE_SYSTEM_DEFAULT, // System locale: V% c" [& j" a
&pokeID); // Array of IDs to fill on output7 f, N; C! I8 z" [3 L. O
0 G, I, s: A+ \7 M if (hr)
2 {+ N) ?& ~3 E' [2 c$ G {
9 g0 E; q1 q. R2 D2 s MessageBox ("Get Poke Unsuccessful");* z" @. R! a2 E; @# _* Z# x0 N
return;2 I' r8 ?) V6 D
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1 q8 y! d6 q& q# c) @9 {' b /**************************传递数据给extend**************************************/
: r$ a% h: L) R8 L; [/ K2 J) G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ w8 I' W; |/ @
; [9 W! L. X0 C; m \; }! g2 t; u valueStr = SysAllocString((WCHAR *) L"1232");
) ^: G4 H( ^) w9 G i VariantInit(&pokeVariant[0]); 8 l7 d4 Z& t9 I8 l7 N! D/ K# @2 m. `
pokeVariant[0].vt = VT_BSTR;$ ^ Y/ p2 D# u) g
pokeVariant[0].bstrVal = valueStr;- }# }3 A, `7 |2 L! Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
5 ~* {! @( t7 E# A3 l: A VariantInit(&pokeVariant[1]);
9 W8 W/ o6 @8 M- j) x& n pokeVariant[1].vt = VT_BSTR;
, p) F/ R! C- x. y0 a) G pokeVariant[1].bstrVal = itemStr;
5 h: T, |" K0 X2 v : e0 i1 `& }2 f+ G) M) f
topicStr = SysAllocString((WCHAR *) L"system");
; J8 b3 n# I& W) S VariantInit(&pokeVariant[2]); 7 f. L% i0 D; y8 L. b
pokeVariant[2].vt = VT_BSTR;
4 n( g- _, O6 z8 T pokeVariant[2].bstrVal = topicStr;" _( \* W" B8 z0 K7 G
' P& v/ u4 `5 ^, n // Set the DISPPARAMS structure that holds the variant." e# J; i* z" |/ u
S: t6 U/ K, m% Q% B! ?7 I
dp.rgvarg = pokeVariant;: c y( b9 z3 c3 y
dp.cArgs = 3;
7 M# T7 Z; Q, g* j dp.rgdispidNamedArgs = NULL;, c* J* G& M. {+ r$ Y% r
dp.cNamedArgs = 0;% {0 I H2 w$ g9 v
" n4 U, S# w0 F" g // Call IDispatch::Invoke()
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3 h7 H8 c* Y- l* S8 H3 {$ T hr = m_pDisp->Invoke() A) D$ \) P# d& p: i2 i7 a
pokeID,/ x) V0 Z y+ O: h: p7 i( G" d* z
IID_NULL,9 w: F& Q& R# d9 X' V" S+ }
LOCALE_SYSTEM_DEFAULT,% W2 G3 z; f3 X# w% g- h
DISPATCH_METHOD,
" H0 z. E7 g/ _, ] &dp,7 L9 s+ a* J9 ~9 Y$ S! `) i6 B
NULL,# y; Y- n9 C4 P% z z0 ?- k
&ei,
& Q" o2 v' N) U5 g &uiErr);
$ z- c. N) Q7 g( {$ b
! Z/ F" H2 h/ h4 C SysFreeString(topicStr);
! G6 J9 u& ^3 c. t- W SysFreeString(itemStr);
! l x. F# u3 }: W }! ?9 c SysFreeString(valueStr);
1 l4 s& O& r: @' b S+ A' o @
& ]% X. Z, R, B 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???' n7 R4 [- x; K/ o
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????
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2.这是request的程序9 ` v+ C6 D* |8 ]& u8 S
// Request a value from Extend) N# N$ e8 v7 v. U) S! Y
//+ p6 l- {2 b7 k. c( U$ ~/ l
// Initialize the variant that will hold the BSTR. Set the variant's
5 p8 w3 \2 V1 E' L+ p // type flag to indicate the fact that this variant holds a BSTR. Place the$ R$ X% f& l4 C0 J" ?; X: J
// BSTR into the variant structure.% |3 R% b2 m/ _" L* r
) l; g! ~, J2 I, R9 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
2 T: S8 e% m. M
6 m# u% y! Q5 h% o6 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ d( }0 _ p2 L5 ~: M4 E7 \ VariantInit(&requestVariant[0]);
' V) F8 z9 [ P0 R: W requestVariant[0].vt = VT_BSTR;
6 p8 g1 Z0 I( o requestVariant[0].bstrVal = itemStr;0 t* e5 \% H3 f5 {- q
" v$ s2 n0 ]6 A$ { topicStr = SysAllocString((WCHAR *) L"system");: n7 x: C# L" F! R
VariantInit(&requestVariant[1]); : {2 J6 l; A- Q7 J A5 m
requestVariant[1].vt = VT_BSTR;5 J+ N/ p% D7 m8 U$ F D, X1 M
requestVariant[1].bstrVal = topicStr;
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$ O/ K) g/ o7 f; \4 ]0 w/ E9 l // Set the DISPPARAMS structure that holds the variant.
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9 x* ?1 z; [4 k8 C4 f6 ^/ O9 D8 b4 j dp2.rgvarg = requestVariant;
1 a% d! z/ V9 W: J dp2.cArgs = 2;
/ M8 G% V+ {3 ^( j5 | dp2.rgdispidNamedArgs = NULL;# w9 _5 J( x+ S4 c0 }
dp2.cNamedArgs = 0;0 ~& C# t' D8 }( Q/ V
: Y+ ]3 V, h* s. x+ u# r0 P- @ var.vt = VT_EMPTY;
# q% P5 @8 o$ i. y% M; K( h 3 T9 R0 m; B2 M* K$ ?
// Call IDispatch::Invoke()& M2 l5 Y2 g+ G6 K# ^
+ D6 p$ W7 z$ j6 M hr = m_pDisp->Invoke( |8 B- T( L+ z/ M
requestID,7 L" u# Y) d* {- K6 E6 o6 I
IID_NULL,
- w5 I" |1 \9 l LOCALE_SYSTEM_DEFAULT,; i w' _" K4 Q* _5 U+ k/ P# b) D2 C' u
DISPATCH_METHOD,
1 ^* R8 h+ H! e/ I# p &dp2,
) H$ i: d8 X* Z; w1 E4 m2 P6 b &var,+ n: q# K; v I: J
&ei,
! L8 u* L, [! }- v# d8 K: S) l &uiErr);
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* M) b" ~; t* G# R) D. z/ a SysFreeString(topicStr);& y4 }! k: j' Z
SysFreeString(itemStr);
* w, U: O$ I# B7 u2 G! ` 请问该程序是获得extend里面的哪个值?
( ]' @, M6 H- i" ` 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????
我来回答