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:5 m2 q& ~! {7 ?. S
Name = (WCHAR *) L"Poke"; , w) y& k0 \% h0 y 2 k$ V& V* J& i8 E! u5 W
hr = m_pDisp->GetIDsOfNames (: @: n+ P1 _6 l9 c, S
IID_NULL, // reserved , N8 q5 O4 W! I7 Y/ j. ^; Z- ^ &Name, // Array of names to get IDs for" S ?; K, X! Y$ |
1, // # of names in the array 3 C5 o/ n* p$ a7 n( a5 Q LOCALE_SYSTEM_DEFAULT, // System locale. q# [# e6 x# ~& ~( _
&pokeID); // Array of IDs to fill on output - q% @# B$ u4 V! L" @' P: i9 z0 Y . u8 Y2 X6 k* a7 N if (hr) 9 n+ J6 M2 M% ~& u4 { { 9 C0 K0 I$ x6 X4 e0 U2 e O9 ~ MessageBox ("Get Poke Unsuccessful"); 8 w- }: S0 t! B% g return; + c3 z' I7 O7 R2 [8 z/ U3 T1 c% k8 w } ( ^4 @% i5 P- W! f: p0 d: ^1 o/ P % [. H% I$ `5 f. K: }7 c1 a/**************************传递数据给extend**************************************/8 `) k0 Q" m' ~2 @1 {' M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & ~$ x2 Z' w( f' l+ w$ v # H- h5 ]0 U7 N/ Z" l valueStr = SysAllocString((WCHAR *) L"1232"); , ?5 z C. k/ j( s2 i& Z1 ]" u VariantInit(&pokeVariant[0]); ! H+ x! I L) m# M" F7 H
pokeVariant[0].vt = VT_BSTR; 8 ^! a3 Y2 J6 R3 D) s6 ~7 O pokeVariant[0].bstrVal = valueStr; 4 P# U( J$ q4 ^2 S0 J$ m- H; O: Z, W" W. C$ a4 x M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , s+ N- A* z1 a/ v% H+ l$ [* j VariantInit(&pokeVariant[1]); % K- X. f( M( T; g) W3 I
pokeVariant[1].vt = VT_BSTR; 4 ]' A" J. k1 Z7 P& X& Y; d. W& M pokeVariant[1].bstrVal = itemStr; L: G8 `% L2 C, ?2 w) |! s- j' a# j" \ p0 @9 k$ Q+ W
topicStr = SysAllocString((WCHAR *) L"system"); & i# J1 b: |6 |; m* e: }( {) y+ v) [ VariantInit(&pokeVariant[2]); 2 n* L" B9 U9 g- l; ^0 p8 x
pokeVariant[2].vt = VT_BSTR;* ?% K3 r$ ?+ X( ?
pokeVariant[2].bstrVal = topicStr; 9 [$ i& M) P J" K9 m , P" Z& B8 X, J6 F) D1 j: w// Set the DISPPARAMS structure that holds the variant.# o& C! z1 { N
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dp.rgvarg = pokeVariant;- ]! m, ?" R& ]8 L! O$ s! S
dp.cArgs = 3;* E" V$ ^ t. W: N
dp.rgdispidNamedArgs = NULL; 4 p# D1 O! A7 A, ?8 X x& r dp.cNamedArgs = 0; 2 o8 d( u4 w+ B D: x* R, q ! |: t3 J2 h Y) f) l# B, i// Call IDispatch::Invoke() ) l' }5 |# p) V& a * Z& J6 E( n7 p- D hr = m_pDisp->Invoke(; y; r! d8 P- G8 t# h
pokeID,$ a* z+ U+ A6 S4 d
IID_NULL, 4 Y% y$ b ^: N+ S- I! E4 R7 G; | LOCALE_SYSTEM_DEFAULT,2 ?. H( }5 b! c5 K
DISPATCH_METHOD, : M& a0 W" P- C &dp, . Z+ w, g0 m5 _8 k- l NULL,7 \4 j L* Z& k1 L) ^
&ei, 2 ~, b" Z0 U \% F! @7 f- { &uiErr); 2 S4 Z8 M# z( W' j, q 6 X- W9 u9 ?6 x3 T7 @" e- `( z SysFreeString(topicStr);9 k A+ E8 o+ M! ~9 P
SysFreeString(itemStr);) t8 ^2 R8 l4 R2 O. [4 S# Y" A" R5 t
SysFreeString(valueStr);- h1 y6 E) j9 |& M, W
' G, f) `0 z+ g& I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 N8 r, ^: e1 ^* @9 u
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' i0 m4 S7 h
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2.这是request的程序1 Z/ p' H4 @6 [9 _$ | k
// Request a value from Extend ?+ h( \7 C( X3 L7 Y
// 3 b% ^2 A8 e8 O2 u& f1 A; R* p8 h6 {// Initialize the variant that will hold the BSTR. Set the variant's/ \! t$ Q6 ~+ g9 Q9 d- y. i
// type flag to indicate the fact that this variant holds a BSTR. Place the ) \5 c. f) P1 v* M, J% f// BSTR into the variant structure. ) F# u: [: M8 G! d% b0 x; l- B) M: Y' N. V5 G" J7 E
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 |3 y5 a9 S J" v- F, O) e, v ; ]& X {( Z9 n$ j. p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 Q' {) e: w, D8 @. f+ P$ C
VariantInit(&requestVariant[0]); & m5 k0 R% C# N* i requestVariant[0].vt = VT_BSTR;" _" J' w9 a& f% I/ K1 J* k4 S
requestVariant[0].bstrVal = itemStr;! t8 s3 \/ g9 ~3 f2 E0 @
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topicStr = SysAllocString((WCHAR *) L"system"); - k. S4 N6 o( k- ] VariantInit(&requestVariant[1]); & K, ^1 g% D/ h+ X9 q' j$ p requestVariant[1].vt = VT_BSTR;( Z+ m; }( }) G5 k$ R
requestVariant[1].bstrVal = topicStr;" W8 u& j' G9 w- z; O# U, R3 u
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// Set the DISPPARAMS structure that holds the variant.- S* Y* X3 N( q0 O
' ^6 A1 A% `" V# y3 `7 ] dp2.rgvarg = requestVariant; $ C# D h* ^8 K9 u ?" n dp2.cArgs = 2; 4 J9 j$ k8 k5 c! ?9 t& V0 _/ E4 I dp2.rgdispidNamedArgs = NULL;' H' n" ^" E4 N, R
dp2.cNamedArgs = 0;7 p/ `7 ?& K# K
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var.vt = VT_EMPTY; . ~! Y+ f. V- A h: C1 J+ B2 N( J/ E9 C9 C* n
// Call IDispatch::Invoke() , J. I6 G3 D9 K4 V 6 F6 Q5 r A+ Y \7 X1 Z7 u: J1 y hr = m_pDisp->Invoke(3 C7 O. C& ?* M& Y" q; D$ t
requestID,- h; f3 G* x" _ Z
IID_NULL, - k2 R9 }% g( F% t! ^6 ~2 A LOCALE_SYSTEM_DEFAULT,0 T% Q5 l7 H! L1 d5 G1 p$ P; s1 Z+ U
DISPATCH_METHOD,( z) R+ V- h% r2 x2 v
&dp2, . [% E% y2 R6 {. M8 T &var,( E" i0 c& s9 Q( L, M
&ei,/ d8 K8 t. C6 o+ q; T! [4 V; U$ G
&uiErr);- f/ _7 t7 w- p. W/ k0 u6 a
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SysFreeString(topicStr);" S% ]( r% H- g O/ K _/ V- j# G
SysFreeString(itemStr);2 b9 H* M9 V8 N% k' Q/ @! _7 r. G/ x
请问该程序是获得extend里面的哪个值?8 r7 W1 R/ `- I }: L
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????