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:0 J& B, e! Z1 m' ?
Name = (WCHAR *) L"Poke";6 i, t E! k9 l
- E' n# n4 j7 U0 N hr = m_pDisp->GetIDsOfNames (( @7 T/ w- ?+ }7 w! c9 f: }* P
IID_NULL, // reserved/ x7 d p( g# @1 c. I) |% {' ?. ^
&Name, // Array of names to get IDs for 3 i9 n( e5 m9 q0 p7 s 1, // # of names in the array( o; ?+ \4 E# p3 E& k4 | Z
LOCALE_SYSTEM_DEFAULT, // System locale & h: @6 `0 q' X% @1 w% f &pokeID); // Array of IDs to fill on output ( e+ H3 b7 B% Q$ h' L, C : ~9 |% i }6 K6 w5 c1 h' U2 x if (hr)0 K4 C( W8 O, z" m" M% J
{ - y8 |* g* j; l3 `/ i6 T2 {' z MessageBox ("Get Poke Unsuccessful"); 1 R: {) }( b8 Q/ v7 X return;9 B4 W5 r# ]0 Q) G
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/**************************传递数据给extend**************************************/ q1 R6 C/ f+ i' ]8 C& I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 v& x/ n( C" E ( O& j* f% I* @1 _# }( ] valueStr = SysAllocString((WCHAR *) L"1232"); - w+ N p- Z1 f& n" O$ r VariantInit(&pokeVariant[0]); & g. G/ q; a- G# p4 j9 i/ U pokeVariant[0].vt = VT_BSTR;5 G" c# T$ o' n' A! W* H) L
pokeVariant[0].bstrVal = valueStr;+ |2 [7 D g5 d* C: V5 X
/ }: T5 N4 N0 I5 T! h7 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ m, t" P* V5 l( ]7 q
VariantInit(&pokeVariant[1]); 2 D" }$ ^; {( l; q! I pokeVariant[1].vt = VT_BSTR; 2 f) r1 s/ F9 @9 Z; ~, R$ U pokeVariant[1].bstrVal = itemStr; ! ]% w" o W9 H * f8 `; q* k) a0 Q% d5 D topicStr = SysAllocString((WCHAR *) L"system");( T M$ w' P- V0 V: Z( p( y, s
VariantInit(&pokeVariant[2]); % J2 m: J' J, W; ] pokeVariant[2].vt = VT_BSTR; / A; w \3 C; g# Z5 M3 Z7 [( D pokeVariant[2].bstrVal = topicStr; ) B1 \7 T9 F& z* C \, [. A" _ ) m! H Y1 @) ]4 q7 e5 e8 p* E+ ?& Z// Set the DISPPARAMS structure that holds the variant. 6 X$ Z# \' V9 q o0 B; e. ]/ }; Q G+ g- Z; |
dp.rgvarg = pokeVariant;5 C6 J9 D5 V# G# z5 `
dp.cArgs = 3;( P4 {% q( r" B4 c
dp.rgdispidNamedArgs = NULL;5 X+ n* J. _/ u$ b
dp.cNamedArgs = 0; ~9 z9 Q, ?. y, j + k4 y% x* O6 q: n// Call IDispatch::Invoke() % l6 [6 C/ e1 [) z+ ^% q : m" e" I! } p8 P hr = m_pDisp->Invoke( $ z7 Q& Q4 R" ?7 x pokeID,4 C. O) j# U/ l* i. |
IID_NULL,3 v% _" m) O! j" c
LOCALE_SYSTEM_DEFAULT, 1 [$ w4 ~2 p/ a1 @, R DISPATCH_METHOD, # t) F7 j5 i, c1 e8 p &dp,2 t$ w/ X: T9 |: m# J! b( h
NULL, / r. N. Y8 [. W0 M &ei,) z7 Z3 |) u: q/ e
&uiErr); - R; C( k1 [7 x/ j, }7 q8 `1 Z( D3 V6 S
SysFreeString(topicStr); ( {* Q' E3 X; E- g. E SysFreeString(itemStr); ; @1 W5 x5 C+ Q; l% D SysFreeString(valueStr);, s0 `& X2 R. R, c m
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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??? : b7 ]! J3 P3 E" T+ x4 o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???? ; T& v: G7 P+ b. e: s- A" _% A; E5 S e5 Y
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2.这是request的程序 5 ]/ D5 g* q7 ~# c) I# j% S// Request a value from Extend & S3 x2 D H! i5 R- ], \8 r5 q// 7 b* u% E* G, }3 W5 {// Initialize the variant that will hold the BSTR. Set the variant's6 g! L5 l# ?2 t$ d8 P2 ^
// type flag to indicate the fact that this variant holds a BSTR. Place the ( V" d7 W- J2 }7 ]/ `. A+ e X, l4 O// BSTR into the variant structure.9 o$ }% R3 U& t( t0 N
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . {- O7 {# M1 d' w& R6 T1 E }) ~( L. }7 {( t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* W( Y+ |# V; i3 w2 K; ~$ J" `
VariantInit(&requestVariant[0]); ( g# u% h/ p2 q3 U
requestVariant[0].vt = VT_BSTR; 6 B; f1 l+ \1 N7 x A6 V requestVariant[0].bstrVal = itemStr;' p' f( a x/ w3 L/ ~' e. R( U
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topicStr = SysAllocString((WCHAR *) L"system");! v$ t% t+ q2 W4 H5 z, q; @' K
VariantInit(&requestVariant[1]); + ?. Q4 Y, o) z1 W
requestVariant[1].vt = VT_BSTR; " v) o q6 ?4 B requestVariant[1].bstrVal = topicStr;+ {+ A5 L- O$ x6 @
, n2 Z/ E" f0 P& G1 i// Set the DISPPARAMS structure that holds the variant.2 Z( R2 G& A' N; E" `, I
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dp2.rgvarg = requestVariant;" U* e- s# V) G: M
dp2.cArgs = 2; : [& B( Y# `. e" J5 t- Z0 K dp2.rgdispidNamedArgs = NULL; 8 x" B5 _, G" G* o5 u$ R6 f dp2.cNamedArgs = 0;& Q: d& v7 _" ]! G, r+ V m
. I: J, o. N2 s% I6 a: o: m0 P var.vt = VT_EMPTY;* i# l) U5 S$ |- i5 b
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// Call IDispatch::Invoke() % z$ _7 ^9 L+ T, s+ E1 k ) ^% X7 a5 D8 J/ [9 { hr = m_pDisp->Invoke(5 E; s/ l) w! F. C! d: j. }( h! @/ |8 Z
requestID,# {) n' Y' J. f+ w* a9 {
IID_NULL, " _* q% |6 x4 D" ^8 u9 N, r LOCALE_SYSTEM_DEFAULT, $ S) o( t/ k/ B: S9 \ DISPATCH_METHOD,* R) q! {: B i0 ?. b
&dp2, + _& G' O0 _1 Y. R6 O+ \/ I& B) u &var,) E/ J! f4 r$ d# C& L% l7 T } a
&ei,- e/ o, {$ ^0 c2 K
&uiErr);. U/ Q6 `4 V c: V! C" X
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SysFreeString(topicStr); 7 A1 t: P A, }* \4 X SysFreeString(itemStr); : z: M" A, H4 `5 N `. k8 [! r7 V请问该程序是获得extend里面的哪个值?! c; H3 g' u# L+ W5 C5 R5 l1 }1 s1 ^
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????