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 J* e; C% B9 b2 s) Y& WName = (WCHAR *) L"Poke";1 m0 w$ S+ S$ k% T+ D0 K
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hr = m_pDisp->GetIDsOfNames (1 K2 T3 E, @! k" D8 u6 o5 z) t
IID_NULL, // reserved @* v0 H2 D2 b- V; V% \* C &Name, // Array of names to get IDs for, G; S& `" U" Y
1, // # of names in the array 1 ?# o/ K% M9 y( n LOCALE_SYSTEM_DEFAULT, // System locale. P* v& S g( b/ f( E" B4 |" X0 b; M
&pokeID); // Array of IDs to fill on output% X; f$ N; E q" ]) n6 q3 a- x
/ F3 Q7 G# o( \ if (hr) # x1 B( k. N' d p6 ? { ) x( e: M/ A1 C. L MessageBox ("Get Poke Unsuccessful");. a) d& R, d9 \/ ^0 F. w
return; m. W, c) S( N+ F& ~- c } 7 G; ]) ^8 @; ^# E$ s , a' Q( {( g) F- O F/**************************传递数据给extend**************************************/2 M4 `9 m: i9 o, V* q: j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " d3 |& g1 E6 a: \0 N1 n' { - d( _. j+ s) Y( R. Q, l! Z
valueStr = SysAllocString((WCHAR *) L"1232"); / [/ y. j3 ~5 N7 V' a) G3 e6 s! W0 U VariantInit(&pokeVariant[0]); 7 `) |9 X8 D- h! [. v0 c: n pokeVariant[0].vt = VT_BSTR;" b2 V/ [+ c5 H' n
pokeVariant[0].bstrVal = valueStr;& T! l4 ?. Z) Q9 }# O. S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . y- S1 n8 @- _% | VariantInit(&pokeVariant[1]); : ~% Q/ Z X' R: t- B% i pokeVariant[1].vt = VT_BSTR; # u( s! |7 a4 z pokeVariant[1].bstrVal = itemStr; : T# e. h R3 `3 B0 h/ d% P3 |; {' Z S0 `; L
topicStr = SysAllocString((WCHAR *) L"system");6 L7 E+ A9 y0 \) g# ?
VariantInit(&pokeVariant[2]); % O* Z M1 Y3 J
pokeVariant[2].vt = VT_BSTR; & R7 p6 _' [) `/ K5 w- }' D( x pokeVariant[2].bstrVal = topicStr; ) E" R& x( q$ h. g) I# ~1 S$ @& J9 Y% p) C1 c
// Set the DISPPARAMS structure that holds the variant.' i. \0 C; @% V# I0 ?5 i! N, H
* C9 {! G- o1 _( O0 |9 g dp.rgvarg = pokeVariant;! Q4 P% n% t3 ^" Z& P* ~% R
dp.cArgs = 3;4 R0 v. |. Z3 T( C+ l
dp.rgdispidNamedArgs = NULL; ; w- H. l( R3 `& q. w: ?# f dp.cNamedArgs = 0; . `: S$ g% _0 c9 _: `' Y : b; R: P6 y/ ] Y2 j// Call IDispatch::Invoke()! {/ A: r* M- n9 Z( `
0 H, ^! h$ W& t, i% C; U9 ^6 Z2 ~ hr = m_pDisp->Invoke( ! {5 m+ h! L3 H9 B pokeID,7 {( M- E a* {1 D A! s( s
IID_NULL, 6 {. d: I) w3 w LOCALE_SYSTEM_DEFAULT,: e% x% ^5 ` C. R1 ^; c2 R7 P
DISPATCH_METHOD,5 \9 ?% ~& H/ Q1 P" ]
&dp, ( {1 |' N' n* {+ m* w3 J* R) X) G NULL,) {7 n9 N0 @4 s5 D
&ei,1 G0 j. N: Y/ O$ r& g
&uiErr); 4 a2 r- G1 E- {& ]8 j7 \! k% r8 F4 u/ ^* h8 T
SysFreeString(topicStr); ! ]6 M2 V4 o& S' s P. ~9 S SysFreeString(itemStr);/ J" t6 r* @9 q, e* u% O/ V& X' |* {
SysFreeString(valueStr); # H0 S; C6 ?& x . y; H' o h5 `3 w' N) Z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???' s- K* U' C; E
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???? ) h/ S( z% Z0 I6 R % c1 ?2 J2 F; \$ G1 G5 u A/ W P: i( i
2.这是request的程序$ V2 m% t+ c1 J9 M
// Request a value from Extend V& r- z/ r" s2 G0 C" f2 Y9 A! f
//& {* e% E4 O. e- q8 a7 q& e) S
// Initialize the variant that will hold the BSTR. Set the variant's 7 S* q& W3 q8 F8 {. ]// type flag to indicate the fact that this variant holds a BSTR. Place the* V" w- F: O6 j/ [
// BSTR into the variant structure.( S+ b$ o3 W5 ^+ g8 T$ X+ v9 I3 F: K
/ W" U a, F7 ~; J- [ s& l4 ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! J! p5 ~* ~2 c 1 n: A: C% u# {7 m4 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; u3 W0 A, I- o. R$ X! S/ t
VariantInit(&requestVariant[0]); / \. q/ v- T0 G! r% k5 E: j
requestVariant[0].vt = VT_BSTR;1 o( d8 k8 G8 E
requestVariant[0].bstrVal = itemStr;5 @4 S; ` _$ `% H) W- i3 x
/ {7 D' Z$ @. n1 _8 o+ x topicStr = SysAllocString((WCHAR *) L"system");5 x9 K% h" X; v; b! B' R0 w/ y
VariantInit(&requestVariant[1]); " F: \+ Y4 R% A& } requestVariant[1].vt = VT_BSTR;( F+ K2 f8 d1 u1 G @5 }
requestVariant[1].bstrVal = topicStr; & r% Q: I! |# T( w6 `3 C e0 L, W# J g3 s" m% W A& p
// Set the DISPPARAMS structure that holds the variant.. ]% e+ e4 F4 s
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dp2.rgvarg = requestVariant; ; x* R% O2 q3 W- H% A7 | A dp2.cArgs = 2;6 B6 v4 M! g+ m
dp2.rgdispidNamedArgs = NULL; _6 p* q3 U9 @% n7 }3 V! U dp2.cNamedArgs = 0; - ]5 q; e. P/ @0 E5 p+ L8 I% R
var.vt = VT_EMPTY;1 E* G) {1 B8 B) z! U$ Y) S' Q
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// Call IDispatch::Invoke() ( N7 e g0 W* O' ^; D" H) Y# E8 a
hr = m_pDisp->Invoke(3 Y4 A! k$ u! P
requestID,) n# c, j0 x8 r! ^1 F
IID_NULL,5 s) w# k: u4 A; C2 V( G
LOCALE_SYSTEM_DEFAULT,8 B; G" A2 ^0 X, ?4 y
DISPATCH_METHOD,' j6 a" d4 L0 M
&dp2, ' N( i. s% p& s &var, " t$ b9 }9 b; H) o" H [ &ei, 9 ~4 Q' l J( {# T0 J &uiErr);$ E# q3 E. D3 m0 \; u# w; r
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SysFreeString(topicStr);2 H/ K( {+ g5 f: ?9 B. i
SysFreeString(itemStr);% D9 e# ~( h3 d' M, H
请问该程序是获得extend里面的哪个值?2 ~2 ^) E7 v( O9 \9 u7 ~, B( 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????