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:' r) A1 u4 _: ]9 o3 A
Name = (WCHAR *) L"Poke";$ D5 x7 f# b' h3 Y6 k
! O- W) ]1 q1 O) T* O hr = m_pDisp->GetIDsOfNames (
3 F9 i# S' v' I2 ~& k$ s7 u8 Q IID_NULL, // reserved1 j: ^+ x$ h* C
&Name, // Array of names to get IDs for
C K$ R* q- x 1, // # of names in the array3 _3 T) q, ?4 f9 M
LOCALE_SYSTEM_DEFAULT, // System locale( |4 |. `0 @: x5 k# U
&pokeID); // Array of IDs to fill on output, A8 Q9 h7 R0 W9 ], C. P) ~& H; D
9 m5 z6 h" b! V, |# c if (hr)
8 ^" d$ x" v, @$ b: _, { {
7 @. b+ C( k7 B* h' v- ] MessageBox ("Get Poke Unsuccessful");9 p) b7 n* t3 i- E, X
return;
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- p' X3 o: t0 b /**************************传递数据给extend**************************************/) S% E; Y4 G8 r- C& l* S1 K( x& \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& J" Q% e( b( R! [" N+ H
: j: U2 c/ I* P! v% } valueStr = SysAllocString((WCHAR *) L"1232");6 }1 k5 _* i) }% v# M5 c& {/ k
VariantInit(&pokeVariant[0]);
! \2 L( }- `8 i) u. G/ X pokeVariant[0].vt = VT_BSTR;
+ @! J7 L# @8 ?; ]# {. @ pokeVariant[0].bstrVal = valueStr;9 [" k6 C4 p( V6 E' ~" f
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 c0 l4 z6 G/ [) b4 \9 T1 O) v+ X
VariantInit(&pokeVariant[1]); 2 I) A+ N) ~' r0 J& d2 k
pokeVariant[1].vt = VT_BSTR;
8 z) V. @ r# S3 c; H U5 q pokeVariant[1].bstrVal = itemStr;7 `* T1 N. l, j; i* n5 U/ F
( g+ ~' c2 u5 W3 }
topicStr = SysAllocString((WCHAR *) L"system");5 q a8 [# U7 f* G" [
VariantInit(&pokeVariant[2]); , O% m5 l2 r6 E2 Z6 R6 r
pokeVariant[2].vt = VT_BSTR;6 j; E7 `. L, m
pokeVariant[2].bstrVal = topicStr;; w2 U% I" n) b+ w e& B% V
/ K- X) O9 ]# h) b2 ?9 i$ B, k // Set the DISPPARAMS structure that holds the variant.
8 h4 ~2 C, } |! q & c D8 p1 d) {" p, R3 e+ }- I
dp.rgvarg = pokeVariant;" S% m$ G& C5 U
dp.cArgs = 3;% X- G, J/ M& I
dp.rgdispidNamedArgs = NULL;; L! m: O" Q: Z' T' G
dp.cNamedArgs = 0;5 x+ V7 \6 q: Z' ^3 b, L0 s6 p
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(& q+ m# O* q/ L3 v9 i2 D7 `
pokeID,
- a& B2 w. L0 V* `0 Y& F IID_NULL," |- Z( t9 T/ Q- @
LOCALE_SYSTEM_DEFAULT,0 R- b; i- e4 o$ l
DISPATCH_METHOD," o# R" ^7 C! k
&dp,- L5 l' l' d$ m' V
NULL,
. @' d. Z4 ~8 S0 g# V! T, s &ei,
; m, K6 }" u' O P4 | &uiErr);
; X& ^% B1 u7 b# D& K" G
# l+ h% p( V7 f! A SysFreeString(topicStr);: [7 F5 q9 i/ N' o) \
SysFreeString(itemStr);( B& Z- ], y2 V9 A
SysFreeString(valueStr);
5 U( i3 Q% `5 ?% y9 y9 G0 R
4 k; _" d! ^- G 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???. i1 E( [" H0 ^: 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????
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# Z' A |. L# ?( [4 T1 ~; l7 W& N z 2.这是request的程序3 D& W1 z% M9 H' a; T& o
// Request a value from Extend
2 }" }8 K9 S/ W //, w# {" q, w* l: R
// Initialize the variant that will hold the BSTR. Set the variant's
# ]; R! Y; l$ d' @7 g // type flag to indicate the fact that this variant holds a BSTR. Place the
/ `! T) x0 v# x+ b h. e7 U* r // BSTR into the variant structure.! P/ y2 x, @$ a9 K0 r
2 e* g- Z+ [! U# T3 l/ h* N+ w- V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
2 k# L: s, u; f/ ]4 m ! \. W0 K, k3 }4 y5 n$ X; v2 R' n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; h+ C) ?' P ^& n" c VariantInit(&requestVariant[0]); 3 u* D0 I, x' X; m8 S$ j' Y
requestVariant[0].vt = VT_BSTR;! G4 }6 Y8 H$ W1 [; H* U
requestVariant[0].bstrVal = itemStr;( @) d B7 Y/ y" @# Z
6 }% y7 t1 S( r5 P. n9 V5 v
topicStr = SysAllocString((WCHAR *) L"system");7 e, _. l' }" a- T
VariantInit(&requestVariant[1]); 0 v* R! j6 h; T- b4 r$ M9 X
requestVariant[1].vt = VT_BSTR;: b k: V" Q U+ M7 q
requestVariant[1].bstrVal = topicStr;6 D" h8 _5 z+ c4 J
! W- i- V- W* T* t8 r3 C // Set the DISPPARAMS structure that holds the variant.! ^* t0 A, ]; ]+ q- w. Y
* A4 b1 X3 h! D, g. F dp2.rgvarg = requestVariant;
0 ~; e2 f: I0 i: b dp2.cArgs = 2;
- a/ _# L/ R8 F dp2.rgdispidNamedArgs = NULL;
a( F3 S: _+ w$ Y$ _, H dp2.cNamedArgs = 0;
" P- g7 H* {/ g$ L' D2 } - }+ ~% z* ^: I- H% Z2 [ v# Q
var.vt = VT_EMPTY;! P9 ?. ^" V$ `* Q2 j
: @2 U( _& g* m0 } // Call IDispatch::Invoke()
4 k2 @3 {& k% z; [# E. ^- W
! S+ ]8 Y5 d6 N8 C" `/ X8 L' m hr = m_pDisp->Invoke(
6 J, i7 [0 W1 {! X! P requestID,$ E" e' N" `8 b5 g/ _) I
IID_NULL,
- e0 c3 B o0 b( g: { LOCALE_SYSTEM_DEFAULT,/ U+ I) x8 ~% V) f4 [5 \. b
DISPATCH_METHOD,! r% S$ h" }/ n
&dp2,
& G; c' S+ x4 d6 G' C. w1 P &var,( w/ ^3 C v) i% o6 _
&ei," c( d& t0 a9 u# T( D
&uiErr);
* k0 ~% J% ]) S
+ q. j7 N, Z* D' r! K8 R1 i" z' t SysFreeString(topicStr);
$ s4 n1 v6 o; F SysFreeString(itemStr);
) n, G. p$ c: Q# b 请问该程序是获得extend里面的哪个值?" o$ P& E& b+ X. m
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