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:* z- y/ @* d: ]' p# l
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (7 y6 U% ?7 o0 F9 Y0 u$ b3 t1 I
IID_NULL, // reserved0 ` W- A Y G }
&Name, // Array of names to get IDs for' u3 C% G9 D* x: I, j' V
1, // # of names in the array! y% ]( A& u/ }0 Y2 e. Q% y" D
LOCALE_SYSTEM_DEFAULT, // System locale
* Q2 @& l! I$ g' \' j) a &pokeID); // Array of IDs to fill on output/ I# c# I1 Y! u/ t& W' c) c5 i
+ E1 U/ q, g' U, Y% Y
if (hr)1 _ H2 ^8 J$ F
{
: Y) M9 f5 x% e' ?$ G MessageBox ("Get Poke Unsuccessful");
l% l7 |. z6 p+ a# x( S2 Y: p return;
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" Q3 z5 U3 o5 @/ c; c" x( x /**************************传递数据给extend**************************************/
, C& T8 {1 ^0 P" I- P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 v) q" ]$ u& t+ ]: I
8 G# V% T2 f) x7 D9 Z3 | valueStr = SysAllocString((WCHAR *) L"1232");
8 ~. o% h' L% T4 S) d, n6 x- H( P# K VariantInit(&pokeVariant[0]);
L" k" K4 @% @/ @, N& P" D& J pokeVariant[0].vt = VT_BSTR;
7 G+ N3 I) V: O6 c1 R0 n- z pokeVariant[0].bstrVal = valueStr;
" }) H$ p( R' _( d! b R7 p$ ^ / c- T8 k( R% r; q# l+ ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: ~* K( I& M6 P7 @: Q6 M2 I6 v
VariantInit(&pokeVariant[1]);
5 b0 v7 H! _9 D; [, M0 v pokeVariant[1].vt = VT_BSTR;. w- Q3 a5 {% `' L& `0 q
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
- W9 V3 h! i5 A6 m% k VariantInit(&pokeVariant[2]);
; J8 C" H0 a3 O: H pokeVariant[2].vt = VT_BSTR;
: R3 Q# J* v0 t8 j4 H! C% n9 } pokeVariant[2].bstrVal = topicStr;
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2 M C7 x! N( r- v% T+ W // Set the DISPPARAMS structure that holds the variant.3 [/ m/ R) Q2 J/ X
- ^4 A* D9 ~, N) C' R: z2 G dp.rgvarg = pokeVariant;
0 w& n I! t5 {9 [0 Y dp.cArgs = 3;" o" @4 T+ A+ S6 k+ Y
dp.rgdispidNamedArgs = NULL;% J& M8 v: u) q- I+ q) l4 X
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
- R8 o2 w. v1 m pokeID,
& m3 ^6 W$ }0 y. O2 e) X IID_NULL,8 P0 S4 e9 l$ ~& y5 W/ K
LOCALE_SYSTEM_DEFAULT,# c3 P( [7 ^; O J) Q/ A+ x
DISPATCH_METHOD,
/ \/ T" _/ U4 j; `' A) z3 f &dp,
+ B; g7 u- f" }/ N1 I0 m2 I NULL,
: ^$ [" z7 c3 @0 l &ei,! x3 V+ ]7 G6 Z+ K
&uiErr);
$ X/ q) M1 p' f, W& `3 @& r8 _
2 Z0 T" Y7 W }4 D# i- X( n SysFreeString(topicStr);1 o$ ?( t. n* ]; I: \
SysFreeString(itemStr);
( K# |( R/ f2 X% U* H SysFreeString(valueStr);' G0 e, Z& J, M/ v( H9 x
3 @, {0 I1 T8 V7 Q3 H7 Z) o v 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???
8 b6 K9 z4 v5 X 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????3 A/ @3 X; T: z' a: u+ d# P+ z
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2.这是request的程序
7 t1 ?* p$ ^- e1 W // Request a value from Extend
/ ]4 b: \: i$ B: Q" r( j) | //5 L% P7 y0 \5 w+ |8 R7 s8 R, c
// Initialize the variant that will hold the BSTR. Set the variant's
" o2 d' d# Q4 f0 I7 g: D8 X" K // type flag to indicate the fact that this variant holds a BSTR. Place the' b4 _! u: ~3 n3 @0 j
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
0 B6 n& i v! n3 _
6 g+ h; [1 M/ l/ ?$ ^1 Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 U" z3 ]6 B g1 V3 i( f VariantInit(&requestVariant[0]);
2 t/ o p( F8 a0 z3 Y n2 Z0 x requestVariant[0].vt = VT_BSTR;
; X6 [4 F# [, [, J p& c requestVariant[0].bstrVal = itemStr;; m3 g3 N- ~. ~+ w& q; D) V; S
4 K) J6 z; L) b5 O0 o: T" R9 V topicStr = SysAllocString((WCHAR *) L"system");$ Q8 j4 \0 K4 ^) Q2 {. U
VariantInit(&requestVariant[1]);
( _2 E- S: ?7 [ requestVariant[1].vt = VT_BSTR;5 ]3 z; M+ j- o) e. R
requestVariant[1].bstrVal = topicStr;9 e: n& d- l2 K4 `) J4 b
4 b% p% F5 O) K: [6 d& t- N5 F% d // Set the DISPPARAMS structure that holds the variant.
3 G( Z% x2 [, O( ?! j; k" L + U \* u& R, C2 }
dp2.rgvarg = requestVariant;
2 o8 B) g8 \5 f- K dp2.cArgs = 2;* m s6 c7 C: B9 ]
dp2.rgdispidNamedArgs = NULL;
2 |4 N$ L9 B! j I: b+ b dp2.cNamedArgs = 0;
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; n# Q( u+ W! [% m( P; x) z- h4 g var.vt = VT_EMPTY;( ~$ _7 B7 [2 ]
$ Q, ]5 T$ n# m // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke() y( _5 j$ A( y9 K
requestID,9 |4 R4 B# U; Y+ q. D9 C0 U! q
IID_NULL,4 e7 X6 y% l5 I! t. e' D; `
LOCALE_SYSTEM_DEFAULT,
3 `1 j7 Q) }: p5 l DISPATCH_METHOD,
) v& J2 ~+ k9 |* f: q &dp2,
2 }' X( ~: ~! t9 S& J2 e2 t5 d &var, L- E6 R& {8 Q, O/ l& r9 v
&ei,3 |' F# v- U1 `: d2 l
&uiErr);
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; c" v+ j4 f# @( R. V SysFreeString(topicStr);5 S5 c* i+ ~: Y
SysFreeString(itemStr);. Q! _$ l$ V5 U2 b m) E
请问该程序是获得extend里面的哪个值?1 |- ~1 F) }: C6 q# [' Q
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