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:1 F, H& _+ h: }" O, }
Name = (WCHAR *) L"Poke"; _; h$ u* k% H2 q 9 M% D- P- k9 K; @) o p% M8 ~ hr = m_pDisp->GetIDsOfNames (& _$ ]' J) _$ j- Y% c% N3 l
IID_NULL, // reserved 2 p, ]5 r' X1 X" G1 R# y; W &Name, // Array of names to get IDs for , s6 G6 h( ^; [. E* A 1, // # of names in the array+ |- W! d' a$ \6 K5 {- x4 \ }
LOCALE_SYSTEM_DEFAULT, // System locale. B7 i( ?& A. @1 Z2 o
&pokeID); // Array of IDs to fill on output ' D* |* d9 a2 H ( ^8 p% I& Q- m6 n! k2 V( A
if (hr)% {1 f. k4 ?* _
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MessageBox ("Get Poke Unsuccessful");* F4 j; c! D" y7 ]( ^2 t
return; / O) }; e- I0 I8 b* v3 a } 0 `* c* Z2 o9 n3 w% j% V( H+ n! `0 }( U2 V2 A# } G
/**************************传递数据给extend**************************************/' C! y) s& Q6 j) D9 w, H, l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 [! M! [! |; x6 i# w% x( F
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valueStr = SysAllocString((WCHAR *) L"1232");5 A: B, y: B( c0 s' u& P. {3 ^
VariantInit(&pokeVariant[0]); " y$ y$ Q+ k3 j% ` pokeVariant[0].vt = VT_BSTR;; b' {' O( O( k# J! I1 a3 c4 G2 U
pokeVariant[0].bstrVal = valueStr; r3 _- S, H2 J) z. N7 o
$ s% F. a4 N! \0 }# O3 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # @9 k* ^9 E- n& Z. W' k) M7 Y8 T VariantInit(&pokeVariant[1]); - o1 {; A; d# N pokeVariant[1].vt = VT_BSTR;. I B" n$ O7 R/ T1 ]
pokeVariant[1].bstrVal = itemStr; 9 E: Z+ R% D+ l2 x, o* y' Y; f$ C5 P+ q* Y, \- A- `+ }, l
topicStr = SysAllocString((WCHAR *) L"system");& c8 O7 v, a3 ^) ~: D
VariantInit(&pokeVariant[2]); ' {( b" B7 u- C
pokeVariant[2].vt = VT_BSTR;& g$ g6 {7 v; p9 w
pokeVariant[2].bstrVal = topicStr; e% G+ h2 k3 \* f# c
# {% ? b7 i8 C, u" t0 C" E// Set the DISPPARAMS structure that holds the variant. ! r0 ?2 ], z+ A' } F, _9 r6 W0 J0 v7 S& M2 Z$ C
dp.rgvarg = pokeVariant; / ?$ s! x: `8 c2 h dp.cArgs = 3;, o* C& ]4 j: y! l
dp.rgdispidNamedArgs = NULL; `5 N7 M! ~4 Q0 ~# o dp.cNamedArgs = 0;/ N% [! C" |6 {3 a
. w7 X/ H/ P* Q' A// Call IDispatch::Invoke() * G. m% A! A* z 3 d4 j; m& |- R! Z) T hr = m_pDisp->Invoke(: c) ~6 c9 s1 h! U, E/ s" n$ k
pokeID, 4 g2 {+ Q+ U8 ` IID_NULL, * J8 E! r: X, O. |, L. C, P8 P j) w LOCALE_SYSTEM_DEFAULT, ( ^) r, ~% q8 C, I% Y/ o, {# h DISPATCH_METHOD,* T. ]8 \% @4 {
&dp, 6 ]1 W$ v) }; X: V& L0 J NULL,! e" w v: u9 Q& ^$ l X1 C
&ei, 2 m$ U3 T. V7 ` &uiErr); ! N6 T+ [. ~, g% F- D+ c 8 }+ Z9 S9 }2 E8 L9 S# D SysFreeString(topicStr);5 c$ ^. t( F% f1 e+ }. r8 m
SysFreeString(itemStr);7 i; h7 f1 S* p2 q+ ~3 B
SysFreeString(valueStr); ) C. y6 g8 V" k# v- i " K ^. Z" K" J8 U* `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??? " M& X) I! K# s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????8 _* ~. i2 @4 {- l0 O4 [+ g* W
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2.这是request的程序 ; c' U4 A2 k0 [5 K1 E// Request a value from Extend6 |6 J5 @; I& m1 W
//+ t# Z5 [) @, n6 Q- K
// Initialize the variant that will hold the BSTR. Set the variant's 0 Z) V8 r3 k, \+ D// type flag to indicate the fact that this variant holds a BSTR. Place the 1 I! P0 p$ b# J// BSTR into the variant structure. ) C' B; x; E. `7 q8 J, ~4 F4 ^! s7 z7 {% d1 a$ n5 e' ]% c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 P3 D% _$ [0 S7 f3 u 2 g8 d! i* D6 a: G7 P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 g q) y! [3 U9 I) X% @
VariantInit(&requestVariant[0]); 8 S2 d" A9 E/ M requestVariant[0].vt = VT_BSTR;: `- ], d& y4 ~9 X, q
requestVariant[0].bstrVal = itemStr;7 _7 [% R- ^# z# Y( g: k/ B1 b) s
+ N7 x( A) l' j7 Q( m topicStr = SysAllocString((WCHAR *) L"system");; }2 ~% E/ f" T- g; l! @; l3 a
VariantInit(&requestVariant[1]); & R5 r2 t7 q' ^1 H requestVariant[1].vt = VT_BSTR;9 s Y! V& r# t1 p6 B- S
requestVariant[1].bstrVal = topicStr; ) g* q. ~5 a, f: \, ]6 @# r- w; @* ]; c9 B. C. D% e
// Set the DISPPARAMS structure that holds the variant.' a& x" R; Y( B/ a# H) I8 r8 T
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dp2.rgvarg = requestVariant;( ^# A( e$ I. D8 w' j
dp2.cArgs = 2;3 P7 ]6 Y% p2 }
dp2.rgdispidNamedArgs = NULL; " a& l v/ z2 h" y/ I1 n+ ~6 B dp2.cNamedArgs = 0; j' ^: M( v7 [8 E- b7 { o8 T! M 4 O8 y+ ]$ ]6 ?7 L* }+ b7 t var.vt = VT_EMPTY;# o* _6 R! o2 f4 [4 r- P0 \
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// Call IDispatch::Invoke() / t0 R9 G/ Y+ s% @2 G o$ P: A$ h& R; _: C$ x) b
hr = m_pDisp->Invoke( 5 r- Y0 P5 b/ U! X0 L& e9 K requestID, ) n8 q) V2 F1 w7 @8 U2 ^% G1 _ IID_NULL, 9 x# O1 \- t2 c0 Y. W; K$ i LOCALE_SYSTEM_DEFAULT, 2 a) m( z# N0 U/ k5 n0 D( G DISPATCH_METHOD,* M- C i5 T% b/ J L: A" m
&dp2,4 f& O% \3 m% a) P
&var, 1 Z- J8 F y; L) {6 f &ei, ( c! E$ k+ C; z9 ~8 b &uiErr); " k0 K H# M2 C5 J) Q: V! S & \! L7 o8 B8 {8 G SysFreeString(topicStr);6 z5 i. t U" \% u9 v) l- F
SysFreeString(itemStr); 0 X, x2 x4 [; H {; C# Z请问该程序是获得extend里面的哪个值? ! {- L1 W% p' c$ R' r) 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????