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:6 g: ^9 b' z4 X' ?, o8 ?, X) h0 n
Name = (WCHAR *) L"Poke"; * z: d) _! E F8 U7 t7 h. Y $ |6 m+ ^0 t* [: X4 g5 p* W( V hr = m_pDisp->GetIDsOfNames ( * x1 b/ h( `2 N i" ?; p8 \* K IID_NULL, // reserved ! t5 e( b" X; s &Name, // Array of names to get IDs for+ w+ H& W6 t. L1 g
1, // # of names in the array 9 d+ N/ y& [# Z; C8 U LOCALE_SYSTEM_DEFAULT, // System locale " }" b, X3 u- K* _" q# j &pokeID); // Array of IDs to fill on output ; }. g4 g$ M8 Q3 a L6 R7 y, ]( I: C( F4 i" X if (hr)3 l3 W5 u* O# a- r% O9 y3 v
{ ' i+ h F) @1 r. o2 Q: V MessageBox ("Get Poke Unsuccessful");8 g( |/ ]$ U4 u- x& t+ K
return;! k) r& }$ Z' S) E4 {/ j# L
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/**************************传递数据给extend**************************************/ ! R' Z# Y! y4 x+ f% \: X1 { pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ c8 j3 W) a- l
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valueStr = SysAllocString((WCHAR *) L"1232");( E/ T/ i" d) l
VariantInit(&pokeVariant[0]); * Q0 o4 i! z G* ^- Q; G
pokeVariant[0].vt = VT_BSTR; - I0 ?' b9 k n: x1 {+ y! L& J" P pokeVariant[0].bstrVal = valueStr;+ f; \. g9 s v/ b* [/ X! g
8 w. P! q+ P: X/ Q2 S3 M6 p2 O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 s! T4 ~& _- H0 {8 |
VariantInit(&pokeVariant[1]); % J$ w/ O! P/ M1 d pokeVariant[1].vt = VT_BSTR;# S7 v: N% c" T9 f* f
pokeVariant[1].bstrVal = itemStr; ) P; f" t4 a" H! }% s2 a0 O2 b" _2 v3 s! @3 e
topicStr = SysAllocString((WCHAR *) L"system");2 D# M, \1 q5 ^7 S0 K+ J. k' v
VariantInit(&pokeVariant[2]); . g$ {7 D' z. c8 z: i8 z& u pokeVariant[2].vt = VT_BSTR; 3 {- j$ K- i" z5 q7 H5 w pokeVariant[2].bstrVal = topicStr; 9 ?5 J+ ^- H2 i" m4 T! G; N" A 1 c8 d" l* x; V1 {0 ?// Set the DISPPARAMS structure that holds the variant." [) D, f: J2 x% m+ ]% @* j' X
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dp.rgvarg = pokeVariant; - ~% G0 b0 r7 y/ u0 G dp.cArgs = 3; : _; d/ g6 B4 O dp.rgdispidNamedArgs = NULL;: l: d" I7 N7 }7 i( v
dp.cNamedArgs = 0;. _0 a9 T; l. A& a+ y7 M
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// Call IDispatch::Invoke(). K9 e2 _7 U; H3 e* y$ r
" ^" ?8 C; C# r( x( @/ ^" X; p: X hr = m_pDisp->Invoke( $ x4 w% q. I7 U+ [. } pokeID, * L G' ^; [4 m* W! t IID_NULL, ! q8 V! W9 D" Q% J S LOCALE_SYSTEM_DEFAULT, : |" x2 a }8 @& _ DISPATCH_METHOD,: r, W. y) z2 e
&dp,, _, B+ T7 p9 T; J9 n
NULL, 9 Y5 l7 I1 Z, B; m2 M# K; D$ b &ei,8 F( s: }2 v7 u# Q# E
&uiErr); 9 M9 I5 B7 b5 I- e( U6 j: S4 s' ?
SysFreeString(topicStr);, a5 g% T8 F$ w0 b f4 d# K8 l
SysFreeString(itemStr);- V# B8 B; m$ Y/ o. J, L V
SysFreeString(valueStr); . ^ ~# y X2 N" ~5 [3 h8 w. r" 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??? q: g6 A3 }5 Y R. o" w% w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????0 J3 V, T6 Q% l( U y$ e$ h* t
2 A* j8 @4 i9 B" o* u9 e 0 i5 r- X" r9 ~, p. b* F- a2.这是request的程序 2 O: T) p# j* A2 i6 B// Request a value from Extend . D! V. T! F7 Q* N//1 `9 v$ b- Q7 t
// Initialize the variant that will hold the BSTR. Set the variant's " f% }- d. _& R) }% k: D$ I// type flag to indicate the fact that this variant holds a BSTR. Place the 0 l6 f2 ?; {% b/ N3 H0 [2 ^( |& A// BSTR into the variant structure.4 P6 k+ l; V% y# Z6 Q; K
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! o' K1 L: O& v" z" T9 Z' _4 n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / Y, @! T" f3 i0 M VariantInit(&requestVariant[0]); |* |6 h9 P! j4 x4 Y t8 N: M8 w requestVariant[0].vt = VT_BSTR; : f; I$ j* U, {$ W& j requestVariant[0].bstrVal = itemStr;) i1 ]& L' ~$ D8 J Z& P
: k- N6 a6 q) C topicStr = SysAllocString((WCHAR *) L"system");% `. B' a. Z0 D# v- J# |2 T
VariantInit(&requestVariant[1]); ~$ n5 e$ N' Q1 Z n" F
requestVariant[1].vt = VT_BSTR; 3 o8 C: N( U. g1 w" H requestVariant[1].bstrVal = topicStr; 3 X. \2 y: }& ?" B! T7 X- y. G4 B. f( K
// Set the DISPPARAMS structure that holds the variant.6 y8 h8 T$ Y t3 ?9 R h7 I5 `
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dp2.rgvarg = requestVariant; 1 \; Y6 k) p+ m dp2.cArgs = 2;+ Q3 E& [; i, p
dp2.rgdispidNamedArgs = NULL;8 b& B& a7 N2 K% O) E1 [8 M
dp2.cNamedArgs = 0; * q8 |) v$ z; e @2 e f( i0 y% N& g# h" g) A var.vt = VT_EMPTY; + n+ O: V' f- S# K- I; p! j" h 8 Q; Z T# H3 b// Call IDispatch::Invoke() 5 Z0 j) E2 z* z |4 ~4 z( u# L* g2 ]; e* d" B! [- d
hr = m_pDisp->Invoke( 5 t, u/ o5 V& Y/ i1 d/ t# F requestID, + W. H/ W: ^$ U7 [& I- @ IID_NULL, ' n7 m3 R1 B1 @, K: v5 s) P2 f LOCALE_SYSTEM_DEFAULT, # q$ e1 Q1 C) _- J$ [6 r DISPATCH_METHOD, . `) P8 }. }' s( @1 @9 l' C &dp2, 4 a5 U7 `, \8 O0 H* u! O! W &var,% j$ O) V# w: w6 |. e4 O
&ei, ' f: G, z0 ?8 H- b4 [ &uiErr);5 {3 H- B$ z0 X
! p5 R- U# {, v; x1 j9 N SysFreeString(topicStr);5 `5 p$ L) w4 S# I- Z
SysFreeString(itemStr);: L( j+ T* t& l. Y0 N- m, o: L: f
请问该程序是获得extend里面的哪个值? ! d% D; w. n* d) G$ Z/ c% z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????