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: g( V% r' r6 N7 J+ N
Name = (WCHAR *) L"Poke";! B( A( k- o% h3 L( C
% M- q9 f! r+ J) r3 @9 [8 G* O; x' g hr = m_pDisp->GetIDsOfNames (" b2 v+ G$ f9 b! k
IID_NULL, // reserved8 R! m8 F# V0 ~- W9 _) G3 j5 j s
&Name, // Array of names to get IDs for% W7 l f7 h2 j4 I9 n0 a* Q2 \! p6 r8 Y
1, // # of names in the array" r0 h4 P3 O( d2 B' q5 y x: O
LOCALE_SYSTEM_DEFAULT, // System locale0 a/ F' A. e7 ^
&pokeID); // Array of IDs to fill on output0 a$ s% s( V& |" e" T& C* F1 t
; v4 ~. b8 Z3 f9 h) v5 N if (hr)* c2 d( R0 Q6 q) K3 e: o5 ?
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MessageBox ("Get Poke Unsuccessful"); # Y& T" N# |! e$ \# y return;0 I9 k; h5 n7 }7 Y- d
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/**************************传递数据给extend**************************************/ 6 @- x8 [6 k* ]& P, Q8 k7 A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, x" L2 `% j( I }0 V7 X @
& u+ `. _) ^2 O' \" u) `' U" ?$ f valueStr = SysAllocString((WCHAR *) L"1232"); % |9 C3 j$ S3 W5 `) a9 { VariantInit(&pokeVariant[0]); T+ _4 @ Y$ b' P
pokeVariant[0].vt = VT_BSTR; ( @% g- S: k1 W4 q! f! u pokeVariant[0].bstrVal = valueStr;0 u; {; y" d5 l, G4 ]& ]2 a
f8 j; O& K, ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: T2 T) C n4 J! o$ N1 t$ A" |
VariantInit(&pokeVariant[1]); |7 V( ~ X; n+ }) m. o
pokeVariant[1].vt = VT_BSTR;# k3 h+ q* ?) v: R) H4 F
pokeVariant[1].bstrVal = itemStr; 7 _& ~+ S5 Q6 e 3 x7 |, i# k' ?( Q8 Z topicStr = SysAllocString((WCHAR *) L"system"); ; a7 C! |% Y5 k; Q VariantInit(&pokeVariant[2]); & t9 C& v7 O$ f* b, U
pokeVariant[2].vt = VT_BSTR; - S7 T$ h/ t- r# O8 Q pokeVariant[2].bstrVal = topicStr; 7 I* S% V/ v0 E, o& _ % t* U+ }, k1 n+ m+ J// Set the DISPPARAMS structure that holds the variant.% N! c& X* B% _7 ]7 d) t
* v" H/ X- ~1 \6 R/ X1 b, `' @ dp.rgvarg = pokeVariant;( a) _6 [( F, |# D; `7 a
dp.cArgs = 3; # T( V8 u6 a, b- c+ i dp.rgdispidNamedArgs = NULL; ' a6 S! b! x0 i, Q" Z Q8 w; z r, _ dp.cNamedArgs = 0;3 \4 Y9 q& ~0 O
b: ? I" Q) u7 |/ p// Call IDispatch::Invoke() 2 `# s2 x! `! l7 m% ?& v$ k" [4 i! h) N2 L: F4 V. X
hr = m_pDisp->Invoke( - v: L; M4 i9 r8 ?) b7 w pokeID, # p! i% i7 x, r6 n IID_NULL,0 s5 O( `7 a+ ]. I4 c+ C
LOCALE_SYSTEM_DEFAULT, 9 G: W/ p# C. q& X: g% h2 A DISPATCH_METHOD,' l% W3 w1 [: D
&dp,; z" S# X' y# p% H
NULL,8 c7 T/ V/ V |
&ei,# Q. o4 f2 E% \$ R _% V
&uiErr); # h- K" x4 D2 I5 Z5 T1 N' S- \; [, O6 U
SysFreeString(topicStr); ; ]* _( [% @( k- a/ ? SysFreeString(itemStr);2 [0 f$ d7 o. D
SysFreeString(valueStr);; [$ B( e3 v! y8 b( o% \
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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???9 {# o8 R% Z- h
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???? 2 U5 S- K3 D# b0 J4 }- f7 u0 ?/ }3 K% ~2 z( {
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2.这是request的程序6 R- J* U+ e4 W" W$ M8 \3 D- J L4 q
// Request a value from Extend! Y i" O4 F0 h% E5 l1 Y
//( F9 h1 L2 y n! _; j+ r
// Initialize the variant that will hold the BSTR. Set the variant's% k$ c6 w+ M+ K: D4 Y# F8 t
// type flag to indicate the fact that this variant holds a BSTR. Place the 9 G$ R5 f, ^) n `, E2 F// BSTR into the variant structure. 9 C5 E9 |; B8 m) `- e- ^* C* ]- V( f/ V
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! {7 n; W* o$ H( V; R5 Z: ^ 0 c/ Z& F8 v! C5 @1 y4 E; T+ q# g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! _& n U$ J+ A2 {( J; |6 ]8 m) @
VariantInit(&requestVariant[0]); 3 x8 K$ E* d3 n
requestVariant[0].vt = VT_BSTR; 0 m" E( ?: U" B$ W9 B$ a( y requestVariant[0].bstrVal = itemStr; ' i" F8 z# O. N& h$ v( u) H4 o# |0 V7 c- D+ Q2 ?
topicStr = SysAllocString((WCHAR *) L"system"); - k0 K, E4 O2 z c( P+ |9 i! i VariantInit(&requestVariant[1]); & W# M1 ^% B- v" y5 ~! b* B# D requestVariant[1].vt = VT_BSTR;0 A: k# g9 o: k% I+ h \' p( e7 S
requestVariant[1].bstrVal = topicStr; Z0 Y: W# K7 a- ~
$ U8 g' X7 N2 p// Set the DISPPARAMS structure that holds the variant.$ R; ^* s& n7 K5 Z& A
$ O1 \2 m, u) k dp2.rgvarg = requestVariant;% T9 \& ]7 n! u# U9 `
dp2.cArgs = 2;. ^( C9 G* A, ^
dp2.rgdispidNamedArgs = NULL; $ x3 {- h2 w. J; C- a4 ?1 z# G dp2.cNamedArgs = 0; * {! {$ w6 w1 C6 w4 h# C 4 D8 o! N5 M6 n8 } o var.vt = VT_EMPTY;4 k5 f2 Y& N' i+ `( u
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// Call IDispatch::Invoke() $ [( V9 z' r( m. L. D: P$ k4 ?" ?( X% T1 p& s# A
hr = m_pDisp->Invoke( 3 R1 n8 m( `6 i& L( o* O, J. g% Y requestID, * _# }" {/ E, L; ?. u& R$ F8 c IID_NULL,% m! X& ? i# D' B
LOCALE_SYSTEM_DEFAULT, * R+ X: B. n- x% W7 Y, Q1 _ DISPATCH_METHOD,+ x, R! R, ?$ `4 b/ [
&dp2, ! R3 d/ F J5 E9 _. I &var,# U) b8 }+ F/ Y6 Z0 O3 i% E
&ei,, }" N( }9 W7 Y" K8 U9 F7 ?
&uiErr); , H7 n4 c, o' m' F( f" }) B- V. T- q- g( z2 f) E8 H# e
SysFreeString(topicStr); 5 Y8 b0 K$ _7 x- q* A" T) _* r SysFreeString(itemStr); ) |6 w3 ^8 Q3 `* K6 Q' P/ D2 q请问该程序是获得extend里面的哪个值? ! L j# W* Y) \: ^. q7 a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????