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:
; m8 J2 ?4 h8 x Name = (WCHAR *) L"Poke";- {0 o5 Q+ B/ {: V- e8 q! Y
+ b1 D; o1 x- o- T2 I hr = m_pDisp->GetIDsOfNames (
) y- o. A5 o6 [- B! U IID_NULL, // reserved# Q8 `0 ~- u7 a, h' P
&Name, // Array of names to get IDs for
$ ~: r# A0 B* X+ {* ` 1, // # of names in the array+ ?. a+ {. k. f
LOCALE_SYSTEM_DEFAULT, // System locale% F# c; t) ?5 J- F" I
&pokeID); // Array of IDs to fill on output, j5 u3 v' ^3 Q* b! ~
9 B+ y9 a5 s) g/ g: a6 w7 P if (hr)# A. i5 p9 W; {0 z3 L4 M" M: N/ M
{
) D2 Q V1 p) E9 W( f( m9 k2 |: f MessageBox ("Get Poke Unsuccessful");9 T V9 Q% X L- e
return;/ t) V6 k. y& v- G
}
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! F7 \0 t/ ~/ Y. H) t /**************************传递数据给extend**************************************/
+ q. w+ i9 ?9 Q" R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 c5 Q9 y4 V" m# k/ D; m! u
. \2 \# X6 |* G6 m* X: e) A valueStr = SysAllocString((WCHAR *) L"1232");
* n$ V0 u+ [: Q2 l VariantInit(&pokeVariant[0]); 9 `: m; O: d: B' m6 {
pokeVariant[0].vt = VT_BSTR;4 o0 }( f* r( \4 w' W' q; \
pokeVariant[0].bstrVal = valueStr;. [% H8 o# ?1 ^/ q
& l+ V) Y# \4 _# ^# @7 ?' ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% ?' \3 }2 @ Y; A
VariantInit(&pokeVariant[1]);
, r8 g/ i9 R3 h7 ~6 `- k8 m pokeVariant[1].vt = VT_BSTR;
. M3 K, t M! p' @ pokeVariant[1].bstrVal = itemStr;
! o6 z" Z8 s7 h0 ]" R : q6 Y) ?1 l: E) [( M& i
topicStr = SysAllocString((WCHAR *) L"system");; _0 S6 X) I9 R, H
VariantInit(&pokeVariant[2]);
- ?$ p: o& ?9 @) ?" y& z. C pokeVariant[2].vt = VT_BSTR;* [/ `& K! X$ W* k* @! ?
pokeVariant[2].bstrVal = topicStr;: L" J0 s8 O% n2 }* O* Q
+ Z) W; _8 d: P' A
// Set the DISPPARAMS structure that holds the variant./ c c" `+ M4 a$ ~4 N7 |
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dp.rgvarg = pokeVariant;" E. s6 g+ ^. b; W1 q
dp.cArgs = 3;
6 s2 P8 c' E5 n dp.rgdispidNamedArgs = NULL;
% H3 X$ s9 V1 ?1 ? dp.cNamedArgs = 0;
1 w9 m Q6 i, L- t, \+ ]" `# n
0 ~( c7 ^( a& v) V% [ // Call IDispatch::Invoke()( c- j0 u5 z( C, N
& w/ S4 \' T/ v1 \9 Z" E% k+ J: m" @ hr = m_pDisp->Invoke(
" B- n, W! @1 a5 h7 V pokeID,9 _3 P/ @) P1 ~7 V0 w! _
IID_NULL,
% k" Z9 Z& C# `3 O LOCALE_SYSTEM_DEFAULT,
# E$ V+ U8 H$ e$ r2 h9 U DISPATCH_METHOD,( H2 E# Z" M2 X9 W$ @# U) u
&dp,( J4 i+ O+ ]* P8 Q! l) h) U# }
NULL,
I) B# ^4 v& {5 `8 Z: I8 l &ei,$ L9 x8 o. |; L* V4 X1 b7 u6 W
&uiErr);
! ?; k+ n6 |( f' V- h8 G/ W
- G2 M4 @& N4 u0 ]9 Y( t8 F SysFreeString(topicStr);& K3 B+ R2 v4 p
SysFreeString(itemStr);( g# q9 w' z6 ?5 {6 R3 m' S0 ~
SysFreeString(valueStr);( y1 \4 g3 s1 u4 d8 P$ C$ R
. R0 `) n$ t6 [' V# z4 A
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???
0 N, D8 x" N, Y! i5 a/ k g9 K 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????) }/ r1 _# h/ L- @
: H- L9 f6 T1 W6 ~. d
# ~2 F7 R V. W9 H
2.这是request的程序
0 ~ p- x+ F& l9 u // Request a value from Extend
, O2 ]9 V- a! s [# m4 F( o: [9 r //
) J9 c3 L4 k$ C# W0 F- \/ S // Initialize the variant that will hold the BSTR. Set the variant's% _6 E- ~$ @8 |4 ?8 n
// type flag to indicate the fact that this variant holds a BSTR. Place the
; H; M4 F( c ~, Z& Z // BSTR into the variant structure.
! }( K8 u: N, S; T& I- @ ( u. f: m9 v K8 f1 U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) C% k( P/ g5 f- p6 r! P
* t q, E$ `3 |) |' d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
6 D$ T6 ^( @, \: X/ ^ VariantInit(&requestVariant[0]);
( g0 z- x+ I, \: B% _ requestVariant[0].vt = VT_BSTR;
3 x& p- Q) w* ]( B0 H$ M, y) n requestVariant[0].bstrVal = itemStr;2 \, }2 u2 h# m; A% t# H* h! p
# w. @; A+ [" M2 U+ L# i/ ?1 b topicStr = SysAllocString((WCHAR *) L"system");
, Q9 _( L: r% C- M7 G, N VariantInit(&requestVariant[1]); + q* A% Y0 k" k7 z1 G2 `
requestVariant[1].vt = VT_BSTR;
% k ^/ V0 [$ I6 A" w requestVariant[1].bstrVal = topicStr;
, {, M2 z% f+ z- H6 Y
2 x1 Q- H1 x5 c6 z* k! q // Set the DISPPARAMS structure that holds the variant.
- b+ C, ^- {3 F1 i8 O$ P8 S* C5 I
6 q6 x& K* [* K dp2.rgvarg = requestVariant;/ o0 O$ |2 n, b! B5 q k
dp2.cArgs = 2;
0 R- ^# ?0 E; ~* l# @- i H+ \ dp2.rgdispidNamedArgs = NULL;
! p5 {4 h/ v/ y* y4 H dp2.cNamedArgs = 0;& c. B/ q. D# x; _+ R% @" F& |
1 s# _/ V0 y$ G% e
var.vt = VT_EMPTY;
4 Y8 Z& `4 V1 Q5 H9 q2 g$ }; W & Z: x# s- N% o G, k
// Call IDispatch::Invoke()
' }; v! G/ R8 w! u7 W' ^2 H
7 H1 `) v! `' O! }$ @- [ | hr = m_pDisp->Invoke(
3 Z! w% T; ]5 W, t) q0 D" p requestID,* E2 R# u- I4 \1 W
IID_NULL,, A4 k# M1 T2 G$ b2 u* z( R2 v
LOCALE_SYSTEM_DEFAULT, O: ^9 v1 M6 G S$ e6 h
DISPATCH_METHOD, W5 `" W$ X, _2 A
&dp2,: D/ B; p+ T4 Z, }4 x; H: h8 I& i
&var,, P& h, A4 k( X+ C: k4 O4 g
&ei,9 S0 u$ _5 r6 d5 |+ b
&uiErr);
/ o8 x* f8 z7 v% C
3 u3 Y z- s7 N- j2 ? SysFreeString(topicStr);
! L) ^4 A, j/ g. J7 } SysFreeString(itemStr);4 }& R/ b0 z ~- h: o
请问该程序是获得extend里面的哪个值?
5 G8 X! ~3 N# S% y 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