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:
|# J" j6 \- }6 D9 @/ ] Name = (WCHAR *) L"Poke";( y" W% @! K( i
# ]/ G5 b6 \9 U* L hr = m_pDisp->GetIDsOfNames (
2 [; H) ~" t, S) l& V: z/ p- v IID_NULL, // reserved
$ U: e' \3 T' a# [ &Name, // Array of names to get IDs for, `/ K# H; I( F& C
1, // # of names in the array
) H7 ~1 E" B4 |) w1 J8 W. { p1 t LOCALE_SYSTEM_DEFAULT, // System locale; n; F2 ^, w u X0 ~
&pokeID); // Array of IDs to fill on output+ |3 v4 M7 o. d8 C2 v' d
- K; R3 ~8 C' C if (hr)
# v, H) @% p: l/ {- e6 {/ k& e6 o {
. m/ B/ G3 e( P/ o/ y& Y9 d8 l0 o MessageBox ("Get Poke Unsuccessful");
& |5 O Z5 |9 j, s0 I! x, @" e return;
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* ~4 f1 V1 O0 `% _9 L7 e% A& P /**************************传递数据给extend**************************************/
r1 y5 l. V* f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
: ]9 T0 R. _# e4 x
1 N* u2 v0 |' z1 o valueStr = SysAllocString((WCHAR *) L"1232");7 u$ r5 }# m/ b1 s4 o6 i
VariantInit(&pokeVariant[0]);
% ]) U" }; Q8 ^8 G pokeVariant[0].vt = VT_BSTR;+ ]/ @8 u2 x" k) I
pokeVariant[0].bstrVal = valueStr;. f y0 ^- w% G5 S5 Z3 w
9 Q2 e6 f$ J8 ~- o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( L+ r+ E) ?4 P0 e VariantInit(&pokeVariant[1]); . H! t4 B# C0 |4 P+ J
pokeVariant[1].vt = VT_BSTR;
$ e6 r0 n; p7 G, e4 J: h pokeVariant[1].bstrVal = itemStr;0 P6 m9 D+ j9 t
: e9 @% F; p7 X: E/ R6 ~0 F, a6 i topicStr = SysAllocString((WCHAR *) L"system");
4 f' h8 \4 f- [* M. o VariantInit(&pokeVariant[2]); 5 F, P) r2 k7 k( V
pokeVariant[2].vt = VT_BSTR;
5 e& M. ~4 o) U8 W3 ?, S1 g pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
- s4 ?* N$ f2 a d# R2 r
7 M0 K9 p8 k( c% W dp.rgvarg = pokeVariant;: k0 y& B" f9 v
dp.cArgs = 3;
! `& [( b" T }$ i. b dp.rgdispidNamedArgs = NULL;
4 a* q4 z) s' W& G/ { dp.cNamedArgs = 0;
. ^1 y1 z$ J3 U S* s
" a) m) i- q% y3 t: @5 K // Call IDispatch::Invoke()+ P! ^. B3 @6 t2 l: g! ]: Z
: b5 @+ z2 p4 ]. y
hr = m_pDisp->Invoke(
$ B# b7 \9 n# A: A( a" I pokeID,
# S& L+ F8 o! ? j, b4 @ IID_NULL,
2 V" c% p( H: v" z+ l# F" | LOCALE_SYSTEM_DEFAULT,
) A* [, ~( w' l2 o4 l) e* p9 ^ DISPATCH_METHOD,6 C/ |3 l4 g/ x
&dp,) b, g% b, ~' ^( ?3 _4 V
NULL,! n' Q1 M8 |% q
&ei,
* Q. K6 Q0 P8 y$ z+ E% u7 s &uiErr);
3 Z* ^1 t* Q" H: X 5 u$ \/ h3 y) s; u& c" D6 ]
SysFreeString(topicStr);. U6 b- z6 T2 @/ b1 [* n7 l8 ?
SysFreeString(itemStr);! q' `+ P3 R( w e- [* @
SysFreeString(valueStr);
* o2 \% T! t' m( M2 b8 R. s ! V9 S2 Z# w. ~5 e S0 W( R
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???
! I) L* |* W6 r* 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????
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' d( ~$ ]5 z4 W% s
8 K0 A% Z7 [+ k, z) ]+ p 2.这是request的程序. b% d' n# R! H7 C9 ]( N
// Request a value from Extend
" g+ D( L$ r, C. X9 k9 L // d; c8 \2 j- u ~! \: x. m9 D) j( ?
// Initialize the variant that will hold the BSTR. Set the variant's2 v% o0 a% j: G" S$ q2 L4 |
// type flag to indicate the fact that this variant holds a BSTR. Place the& b X+ ^" p8 q' Z: x
// BSTR into the variant structure.
/ r6 b; Q0 K7 ^5 z / B- {$ |6 c# T# h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% W& p+ o: K9 c1 q+ P8 ]$ e9 w- H
5 d% h( V k( l& [0 u' L; G) Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' {8 ~# x% [' N
VariantInit(&requestVariant[0]); 3 q6 V3 T: a" a( A# u
requestVariant[0].vt = VT_BSTR;) `0 y6 Z& t" r6 P( i2 X6 _+ r
requestVariant[0].bstrVal = itemStr;
* e2 ?1 C9 `6 U# W0 {
- W- V/ o* W! Q' c0 g, p7 `3 {3 s topicStr = SysAllocString((WCHAR *) L"system");
4 P# f; k) {4 a* B9 l VariantInit(&requestVariant[1]); , a7 }+ {0 s, W& M0 d
requestVariant[1].vt = VT_BSTR;4 `: _% J) t/ ]7 V
requestVariant[1].bstrVal = topicStr;" @+ ?' M8 S9 M8 x$ v' U
, A( ~( j/ ]" |0 P4 X // Set the DISPPARAMS structure that holds the variant.0 C) g) ]3 W _2 e. _* `2 _0 u
1 R ~1 P# L& c! O
dp2.rgvarg = requestVariant;
8 x, H" N4 l$ [+ w dp2.cArgs = 2;
# K) e$ J; H7 @, t$ _2 a/ `3 } dp2.rgdispidNamedArgs = NULL;
% h6 m) U4 \1 U* _0 J dp2.cNamedArgs = 0;$ C. s2 `4 P9 F; G
) L: j, s4 S5 @: I var.vt = VT_EMPTY;# ^) a( m& k5 T5 g
5 E( r; {, I5 L0 w( ? // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke() t/ N1 E p- G& _4 Q2 W5 M
requestID,
8 l1 W6 _6 q0 F8 [& k! X% Z IID_NULL,
1 T+ K: ]! N1 z4 M9 I LOCALE_SYSTEM_DEFAULT,
# v% g# U' \9 _8 e ~ DISPATCH_METHOD,& m8 j$ I1 h' z7 ?# A" n
&dp2,
! r+ C. r$ ?/ v; h+ B. P &var,
( u4 L+ g: ^! c2 [7 T &ei," ^0 Z! w6 z( u4 e. c
&uiErr);7 A3 D7 K* \- l$ E+ X" \
( | W- P# d2 F" \, x7 O7 s
SysFreeString(topicStr);% M3 F& `; e# R9 r( Y
SysFreeString(itemStr);4 o' J( G: U$ {, j
请问该程序是获得extend里面的哪个值?3 N: k1 ?0 d/ q' l3 {
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