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: ! t( D; q: @$ ]5 m; T0 m$ O' |0 [Name = (WCHAR *) L"Poke"; # k; {7 G5 C' a5 H4 V" h# X& L ) W5 Y2 A/ ]( A6 H4 X' m
hr = m_pDisp->GetIDsOfNames ( % o# b/ n& s3 H; Z& o IID_NULL, // reserved/ X9 \& p$ I9 L8 i8 s6 q* X' x
&Name, // Array of names to get IDs for8 y( V6 e9 Q7 T1 G6 r
1, // # of names in the array % O) V# H% X8 g LOCALE_SYSTEM_DEFAULT, // System locale ; k% `, Y6 W3 ?1 C &pokeID); // Array of IDs to fill on output. Y0 z) E9 u( D
! d, \' A3 o w; Y, }: a
if (hr) 9 K+ F E: G' t, i8 v2 u { ; o: x8 z! u' z; Q MessageBox ("Get Poke Unsuccessful");7 S2 W) G2 Y# [% q1 b+ O' o0 [
return; " c4 Y9 |+ o$ k/ Y. h- H }- i! h4 I! s$ @0 \ k7 P
0 x' n* J. \& |2 f0 C7 o/**************************传递数据给extend**************************************/1 e( D4 ^! U/ M8 Y- x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' [; u) j3 K5 L3 a
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valueStr = SysAllocString((WCHAR *) L"1232"); . o' V) \6 `6 G& j) W0 s8 T VariantInit(&pokeVariant[0]); 9 w* ^2 }/ b9 x: I9 p pokeVariant[0].vt = VT_BSTR;. H8 w3 o7 N6 X: A# W1 E! s1 K; y
pokeVariant[0].bstrVal = valueStr;! _; O# d! Y4 K$ s
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! \* b6 T# T6 I* C K. w VariantInit(&pokeVariant[1]); 8 ]4 N& R1 W1 \# R
pokeVariant[1].vt = VT_BSTR; : e# d n- q* u2 p% ~$ I: G pokeVariant[1].bstrVal = itemStr; X, ?4 @# f/ u; e9 |' v5 V
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topicStr = SysAllocString((WCHAR *) L"system"); $ P. _" F& |3 S VariantInit(&pokeVariant[2]); ; E3 k# L7 }. G7 j pokeVariant[2].vt = VT_BSTR;! \% s# D; `" M. \
pokeVariant[2].bstrVal = topicStr; 5 `* W4 P- j* n. ] # o) J2 x% Y/ _- z1 X6 N8 d; n// Set the DISPPARAMS structure that holds the variant. $ z- v7 w, W# c/ C + [! a' _6 V* K5 L! ] dp.rgvarg = pokeVariant;3 K5 Z0 g# a) n* Z2 U! w9 S
dp.cArgs = 3;0 s9 |) v, B8 y/ ^ j
dp.rgdispidNamedArgs = NULL;- z) q9 F# O3 `% @6 k# v0 d
dp.cNamedArgs = 0; C& q9 n/ g& ~
+ u- I2 M& u6 j ]. L9 J
// Call IDispatch::Invoke(), F. ^0 c! ]1 b" D r! u
$ [) J9 V& L0 G9 ~( |* I hr = m_pDisp->Invoke( S. S- ~3 }" I* {3 `" G pokeID, 7 U g9 g! O" h; P IID_NULL,5 K/ x) |; C+ P( c7 z7 m
LOCALE_SYSTEM_DEFAULT,( _( }3 I0 B& L4 X. w
DISPATCH_METHOD,3 u8 Y1 ~; [- n: l! n
&dp,. ?1 q) R" _9 g% {( B
NULL, 0 T) ~% @+ S7 q& G: A. j &ei,( f [7 n! x5 ?5 }) F7 {
&uiErr);2 S/ S& {+ }5 k" U ]
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SysFreeString(topicStr); . U* H9 ^4 }1 Q8 D$ b. R* K SysFreeString(itemStr);3 I9 M& l$ f: E) |8 m/ [
SysFreeString(valueStr);; x2 C# t2 Q+ R3 B3 C3 K6 |
7 c# F; A1 y9 X8 P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??? / d( D1 E4 V# q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???? # i; [/ T3 a/ j$ S! H* {, m 3 b' }5 u. X# ~. C; h) d F0 F% g. F- W2 h; J, Y
2.这是request的程序 , V2 ^$ T& T# s& H& m$ b/ y// Request a value from Extend K# ^7 n4 [- G//5 a. H! o( A, o$ v9 z3 w. I
// Initialize the variant that will hold the BSTR. Set the variant's 3 S$ u8 r# Y0 s8 g. Q1 f6 j8 U8 h// type flag to indicate the fact that this variant holds a BSTR. Place the! \( @" h: n# i( o9 _
// BSTR into the variant structure./ E& |+ D/ a) [% p. v! u
$ h7 {5 W1 T+ S/ L) N6 y' o8 b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% B' x( ^/ [3 y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 y2 H% ~* L* x5 c7 X VariantInit(&requestVariant[0]); ! B3 k! f. J; `" l
requestVariant[0].vt = VT_BSTR; $ W8 w, |1 a: }4 I1 _ B requestVariant[0].bstrVal = itemStr;" ]1 h% \% q& N7 s$ `
9 t" I* X' F2 B8 h5 g+ h. l topicStr = SysAllocString((WCHAR *) L"system"); $ w: v0 j \3 j* L' v" P VariantInit(&requestVariant[1]); & I% G6 S' ?7 P# r/ s( W' |1 t, S
requestVariant[1].vt = VT_BSTR; - d, i& k$ f( P. Y ~& y requestVariant[1].bstrVal = topicStr; & ]5 ^7 P. ?! s5 Y% ?7 p$ m7 u- I0 r
// Set the DISPPARAMS structure that holds the variant. * H) ~3 s) r1 v - N4 ~- ^8 c, Y8 T dp2.rgvarg = requestVariant;; p( ]0 p: Q) n6 e
dp2.cArgs = 2; , d4 M2 @4 K$ n+ ~( | dp2.rgdispidNamedArgs = NULL; 4 t0 E1 R7 P) x4 @8 P. R+ e- _# ^$ O dp2.cNamedArgs = 0; ( {4 G/ I$ `0 O0 c, F; }" _6 s" i5 }; n% q5 Q
var.vt = VT_EMPTY;; ?0 v) a) n' u5 c" p' h) T! |# ?
( ]4 i, j* B; ^0 K/ g+ \( G5 F9 @// Call IDispatch::Invoke()6 m4 ]* p5 o }8 R, h2 Y
+ o8 N& N* W: e4 t+ f/ D- n: q% O hr = m_pDisp->Invoke( m. n7 G8 W5 P4 n% Z" A7 z
requestID, # `$ `' c& j+ o( G IID_NULL,* V: I! T7 O( m: k
LOCALE_SYSTEM_DEFAULT, ) x) g/ c' P& p; B6 c$ O DISPATCH_METHOD,6 q. O* v" C; m S: L2 _
&dp2,2 y3 {% U, }$ z, [
&var,4 ^# C: }- G4 @9 w) ?
&ei, \1 b# F: ?7 F- K7 Q( F &uiErr); ^" \3 e% q& y E3 w$ R5 z+ u! C A9 E. y4 ^" p2 u9 S' E
SysFreeString(topicStr); : s! r' U. L# m3 Z# W) d* N" } SysFreeString(itemStr);- ^+ y3 k, g, @: X$ W7 M
请问该程序是获得extend里面的哪个值?8 d( x7 E" j8 Y/ z) I: l( y$ 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????