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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:3 u5 q, N7 D9 c
Name = (WCHAR *) L"Poke";0 S( k+ r2 M" Z
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hr = m_pDisp->GetIDsOfNames (9 u: |! M6 ?/ c3 k- O! y6 e
IID_NULL, // reserved& G0 C- H% d/ N' B" ?
&Name, // Array of names to get IDs for
& g/ ^! A# C* M! x# d 1, // # of names in the array
/ D+ ^" g" a9 n, y% X) a* w" G5 h2 }1 Q LOCALE_SYSTEM_DEFAULT, // System locale
6 a, E) ^" i% l; o &pokeID); // Array of IDs to fill on output8 J2 V+ ]. F) y% u9 v4 T3 K
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if (hr)
6 k1 C: S8 _ n {
& @( j% D3 h7 |, j8 k4 K% r MessageBox ("Get Poke Unsuccessful");/ V: P3 K q7 b& k
return;
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9 s1 L6 I7 A. |+ D! w f# w$ f/**************************传递数据给extend**************************************/6 T$ G) q# m$ r( m B* E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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; D$ c; g) L* t+ M+ x valueStr = SysAllocString((WCHAR *) L"1232");& O( K( \: y( l8 z) S3 I" W
VariantInit(&pokeVariant[0]); " n# z9 X8 M/ \( i; B, z: W, q
pokeVariant[0].vt = VT_BSTR;9 c0 ~# {' g$ C- R* R
pokeVariant[0].bstrVal = valueStr;% W3 m/ @' G) b
! Q# h; t4 }3 e3 Z# W( W8 [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: v# B- |- b2 E. w0 ?( r7 l VariantInit(&pokeVariant[1]);
3 k, G2 V/ u9 a0 O7 I pokeVariant[1].vt = VT_BSTR;6 Y0 \7 f1 r3 o4 F! L% P" R
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");, v# w6 i5 _, v3 p B
VariantInit(&pokeVariant[2]); ( ] E/ l* `" c- O& r1 K: }( ~) f& Y
pokeVariant[2].vt = VT_BSTR;; x' [* b) h3 T
pokeVariant[2].bstrVal = topicStr;
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3 t) A$ c+ h( B/ {/ v+ |6 x// Set the DISPPARAMS structure that holds the variant.
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- X8 `6 B* w' |' |2 g5 O dp.rgvarg = pokeVariant;, n) N# Y# ]- B
dp.cArgs = 3;2 o( {# T* N" C
dp.rgdispidNamedArgs = NULL;) b- S1 l# e4 n6 S7 l
dp.cNamedArgs = 0;
# \3 p# v6 }* O# d: A h
7 N9 {1 a- a: T7 I. R: l# p* j( _// Call IDispatch::Invoke()1 J7 Y; L7 d) p% ^9 j" K9 s" G
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hr = m_pDisp->Invoke(
- r) i, ]9 G6 R/ F8 D8 Y9 c7 w% O pokeID,
: g! e8 D3 [; X IID_NULL, g* z; C' a) W5 u: {
LOCALE_SYSTEM_DEFAULT,5 Z# g2 W& u: T2 H
DISPATCH_METHOD,
. t# b9 S& i$ V& m* O &dp,! y2 Y. D% H0 q. E
NULL,
1 S/ S( A0 ]4 |& H' m, u2 E3 u( e &ei,
1 S7 V7 b E* I7 i! D &uiErr);+ R( I5 G4 m2 Q0 R
' z$ m+ X0 c! b7 W* f+ b6 C SysFreeString(topicStr);4 d, r& `( Y3 G, w/ X! R+ Z+ g
SysFreeString(itemStr);
$ I% T( R; h" U$ x# \; t SysFreeString(valueStr);1 {! ?, K/ i& R2 |% ^3 b& [
4 g+ k: v4 A! T& Z2 ]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 {# E9 r: ^8 _$ P" [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????+ l/ L) {) U' \7 g8 `: @
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$ ]$ k* [- D; ~2.这是request的程序4 |' _ Z' f/ A- N! k
// Request a value from Extend
5 K: c2 H1 R9 h8 T5 U1 Z: M" }//, M( A. R! e4 M# r4 [
// Initialize the variant that will hold the BSTR. Set the variant's" @- r) v+ J3 H) c) u7 X0 c4 A0 }; e
// type flag to indicate the fact that this variant holds a BSTR. Place the/ N$ h. ~5 i. N" L- z6 o+ m
// BSTR into the variant structure.
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7 ^* s: e% d6 b( o( h: p% _ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, |3 Y8 y, Z) O7 O6 Q% t+ R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 e5 n. z9 p% x
VariantInit(&requestVariant[0]);
" M% z6 h% E3 r2 { requestVariant[0].vt = VT_BSTR;+ `# p/ e S# [2 `. ^- i
requestVariant[0].bstrVal = itemStr;: q0 }0 x/ A. ~5 S2 n6 p
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topicStr = SysAllocString((WCHAR *) L"system");
; D# n$ r# Y9 j7 U$ @8 O6 _ VariantInit(&requestVariant[1]);
5 Z0 m) T) n/ M4 l3 o requestVariant[1].vt = VT_BSTR;, f( B8 q% _" d6 t2 b- z6 U2 U
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;2 ]. a$ p9 H& \3 H8 z
dp2.cArgs = 2;% D- U G" Q2 e' l8 y1 p0 L
dp2.rgdispidNamedArgs = NULL;# o5 L+ I' Q0 r7 K8 _8 _5 \
dp2.cNamedArgs = 0;$ Y$ g) o) k7 Y! O$ G
: l( S0 ]: A2 i1 b! o5 o var.vt = VT_EMPTY;$ `- _* w0 d5 z8 o
3 h7 \* E0 |& c% E/ s8 n8 D+ T// Call IDispatch::Invoke()% H/ n! R8 A: b3 X; v; @+ o0 ?+ J
0 B c4 O# g( C5 b6 Z/ Z' ^ hr = m_pDisp->Invoke(
( \, i: L! |4 t; e6 j' f' {. N" m requestID,
2 C5 r9 F% ?) \# K IID_NULL,- F+ F7 t9 F4 e" G; O1 y& {
LOCALE_SYSTEM_DEFAULT,
: m1 z" i5 Y6 B: M+ x; Q DISPATCH_METHOD,$ [6 A: L9 p9 |$ ^( R, W
&dp2,
- t( |- ], m* r* m! @. W) g &var,( X3 ?( E' f& F X+ X
&ei,
, U7 r& F7 c7 k &uiErr);+ z0 j6 i2 l b" w3 {8 t7 [8 E2 M
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SysFreeString(topicStr);2 m* t, q$ a, z% D( [3 Q
SysFreeString(itemStr);0 V5 I0 q- E: [$ W2 E+ h, i; d% g3 ?
请问该程序是获得extend里面的哪个值?
5 i$ F1 `9 Q8 e( J: p" A. M' t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???? |
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