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: ) |% s3 _1 K$ Q0 k) n0 \6 ?Name = (WCHAR *) L"Poke";2 ?, h3 r4 S- N. F. K. R2 P/ u2 C
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hr = m_pDisp->GetIDsOfNames (/ P# l. i8 A( C& ^4 V
IID_NULL, // reserved5 G+ J1 X* d4 y
&Name, // Array of names to get IDs for) v3 W( [5 G1 O7 m% h
1, // # of names in the array6 Q y: q, b/ _( K- Q
LOCALE_SYSTEM_DEFAULT, // System locale : B3 K" B5 M8 q" Q3 v6 i' s &pokeID); // Array of IDs to fill on output+ Y0 w4 e6 p& t6 w: J/ u
$ D0 U& i+ B; d7 @' W if (hr)+ o' p7 \. \; B% W) R
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MessageBox ("Get Poke Unsuccessful"); 5 `, Q0 O$ N* | return;5 ?0 c: \9 }* V: J* s7 P h
} * j( q* J9 l- w. | 0 B) g& ~2 @8 i W5 D/ ~( A. y/ Z/**************************传递数据给extend**************************************/ 1 @4 W _8 t* X |. @$ _6 i' F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 v4 q( T+ W: N/ L7 w6 s: D 0 @8 d8 Z/ z v0 Z% R4 M* @; Q valueStr = SysAllocString((WCHAR *) L"1232"); , @! { G0 X# ^. J; U% U VariantInit(&pokeVariant[0]); : v$ [8 {- `& E3 }; G9 c4 N+ T pokeVariant[0].vt = VT_BSTR; 3 k: R$ C/ w4 K6 J( d- f1 p* J pokeVariant[0].bstrVal = valueStr; - d+ o% F) F% T/ L/ L' _( C. H, T# D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# R7 W7 k7 m! F+ G; U0 q! _
VariantInit(&pokeVariant[1]); $ `; _' z/ z% y% E( w, o# z( k
pokeVariant[1].vt = VT_BSTR; 4 G" y. x8 s% `1 B pokeVariant[1].bstrVal = itemStr; ( p: f9 b( Q/ n$ P . i4 i, C" l; D. }- V topicStr = SysAllocString((WCHAR *) L"system");+ ^' v* m5 U* ~# x5 d0 Y
VariantInit(&pokeVariant[2]); 9 e9 F3 ~( _$ \0 g' T pokeVariant[2].vt = VT_BSTR;0 p4 u& L( z6 v. A
pokeVariant[2].bstrVal = topicStr;3 J, \5 L& p# I: g% g
; D. G2 ~/ u0 | B D0 p. a// Set the DISPPARAMS structure that holds the variant.' f5 ^2 U5 K5 @
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dp.rgvarg = pokeVariant; ! c: q O* f4 ]0 B" z! |! F3 w/ N dp.cArgs = 3;! g. w5 Q- p( {2 _. j: r& ?$ S) m
dp.rgdispidNamedArgs = NULL; D+ p) B2 [+ T
dp.cNamedArgs = 0;$ g( W+ S- ?3 H% U0 @
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// Call IDispatch::Invoke() , A* O1 G2 E' N& [) Z2 I0 N) W3 k - M' T% S4 e; \& j3 k1 ? hr = m_pDisp->Invoke(9 ?% b3 [0 ~' h2 ^7 D( l) p! n
pokeID,( x: s% T3 E8 C- L! t* C; I; N
IID_NULL, 1 m* h ?9 s) {( c) _ LOCALE_SYSTEM_DEFAULT,' \1 V O6 C! o
DISPATCH_METHOD, , P: L; D5 o4 Y' a( d2 @ ] &dp,/ W$ s1 e( @' ^- N7 m; H+ l: j
NULL,) l/ {0 V) L s2 E
&ei,) a) n* ^2 f% o, W" l8 f& e# ?% Y
&uiErr);5 _; b; z3 A7 A% _2 n" n W$ F
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SysFreeString(topicStr); ' l/ V& y1 N D! N SysFreeString(itemStr); 0 J% y ]" b7 O) x- f) U SysFreeString(valueStr); y0 f& W6 f. p p! l% }/ H9 O2 q1 b; U; n% R- ^# U/ N2 y+ { w' h
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??? 8 @8 ?4 z9 d) _, ` ~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???? , C/ j4 H l& Q& |1 V* | 2 e, M: s }9 T, a) H3 W+ t' W/ n+ P) j) }( y$ G! C2 I
2.这是request的程序 V0 P# |! ]/ Y6 T8 G/ }// Request a value from Extend4 ^4 A) m! F6 J5 W% n8 |* f
// 8 F a" M {6 H' h// Initialize the variant that will hold the BSTR. Set the variant's ; r8 s: K, ?1 q4 l1 a j// type flag to indicate the fact that this variant holds a BSTR. Place the ) x7 F5 C# [% b// BSTR into the variant structure.) W n! @( u$ Z ?3 Q* I8 c, `
; C9 i/ R: i. `* x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " \4 F& j1 D- Z " w+ Q# I- m" E* q" E6 H; }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 |& `) {. X* U1 p9 ~% s1 N
VariantInit(&requestVariant[0]); 3 g. R1 h: Y! h( a7 b requestVariant[0].vt = VT_BSTR;8 M& v2 U1 p0 J, j
requestVariant[0].bstrVal = itemStr;: q& G; }* z8 z: p: i5 U1 ^( Q* G; V
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topicStr = SysAllocString((WCHAR *) L"system"); 4 u- B; @8 ^ @- W8 O$ D VariantInit(&requestVariant[1]); ) L+ j( V2 S+ P8 [' e; ?2 q4 e& E
requestVariant[1].vt = VT_BSTR;9 [& K. N& v# K
requestVariant[1].bstrVal = topicStr;' ]! J/ g9 i3 o L- d
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// Set the DISPPARAMS structure that holds the variant.$ y2 {) f. D" G! d
# L- i a% w( G+ I& J dp2.rgvarg = requestVariant; * Y0 @6 b* y+ ~; _/ W dp2.cArgs = 2;8 Q% E9 \, U% y6 x7 a
dp2.rgdispidNamedArgs = NULL; 4 m! ~7 b) I0 T: F A9 a5 n dp2.cNamedArgs = 0; Z1 `: Q+ r: D5 w
6 Z1 x& S g7 {
var.vt = VT_EMPTY;8 I1 F4 @+ e1 L4 [
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// Call IDispatch::Invoke()1 h3 L5 {& g6 U7 O' M, g
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hr = m_pDisp->Invoke(# f9 n0 N6 p3 C. M5 y# G
requestID,& e8 W- t3 f) F+ u
IID_NULL, + G0 p7 r- i4 w. D LOCALE_SYSTEM_DEFAULT, , M) w6 ~; K7 G8 c: {3 a DISPATCH_METHOD, " O$ o% J Z9 o" G1 a. Y &dp2," x" n9 Q$ o2 f* p0 k9 \- c
&var, T2 I( p! R6 r
&ei,/ }6 v5 G4 ~8 p) X3 h8 R
&uiErr); " V9 A& P$ j% |& N. i5 g- u/ G) R+ i4 |7 c2 e r6 _
SysFreeString(topicStr);* J+ z5 e4 F5 R; S9 F& ?
SysFreeString(itemStr); 6 o3 X7 s; }/ n3 l& L, b8 [请问该程序是获得extend里面的哪个值? / b& ~+ d3 I! O; ]' i2 X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????