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:+ Y T( w: G- a3 v1 d/ w/ e8 n
Name = (WCHAR *) L"Poke";+ R! v- o$ E3 u# j7 U
+ @9 m% H! z! H& n; m$ S hr = m_pDisp->GetIDsOfNames ( , {+ o4 _1 e. d* c8 q IID_NULL, // reserved; Y! a a P9 g1 O+ U- Z/ \) o% Z- D
&Name, // Array of names to get IDs for ! C9 }' W. W5 X 1, // # of names in the array5 S# W/ p8 i; u- o3 H: n( o: F" \
LOCALE_SYSTEM_DEFAULT, // System locale4 O! n) | I, K
&pokeID); // Array of IDs to fill on output " L1 W6 p1 u8 } / l/ R" A, m8 g7 p( I' { if (hr) 3 M0 Q- V1 u* _: F9 }, {7 k; V { * N: |0 {1 _. h4 k7 {# ^" _; d MessageBox ("Get Poke Unsuccessful");7 y5 m; l" N W3 J) Z/ Q3 q
return; % R6 s; P9 t3 n( h( _ } 4 K* m% D6 P2 L4 Y- M/ n& d , b$ _" e y# z9 J5 `/**************************传递数据给extend**************************************/. ^# {, S) Q+ V; s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . J$ c' Y. B& z) H3 a / @7 x4 ]; g6 n valueStr = SysAllocString((WCHAR *) L"1232"); ! }& r1 q2 ^2 }. `' q- `! I; t4 ] VariantInit(&pokeVariant[0]); # [3 Q/ j, B. D- } pokeVariant[0].vt = VT_BSTR;- }4 c' y0 s: x0 @( l8 P
pokeVariant[0].bstrVal = valueStr; + Z% ]1 n6 P$ D7 d3 H, G$ t' B 1 Q6 n. a/ f r- a8 I+ e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); S" |9 O- F% J& `" ?
VariantInit(&pokeVariant[1]); 6 T5 t) O% W5 }# i. d
pokeVariant[1].vt = VT_BSTR; , x1 ]& w `, _, ]" ^0 V pokeVariant[1].bstrVal = itemStr; % A6 J0 N- E2 ]3 `( I* ^1 Y4 h [* S4 U5 P1 B
topicStr = SysAllocString((WCHAR *) L"system");" |1 A, T+ y. r
VariantInit(&pokeVariant[2]); 0 O! ^9 C! a6 P. J \0 [ pokeVariant[2].vt = VT_BSTR; 8 t. B) r2 W. w: ]& b pokeVariant[2].bstrVal = topicStr;/ E) W: Q. }( q4 h+ l" t
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// Set the DISPPARAMS structure that holds the variant." |: b* d+ J8 T! B: u- ?$ }
2 {4 Z* K1 r. i" d9 { dp.rgvarg = pokeVariant; |, P$ t. T0 M: m, @1 B Q5 y dp.cArgs = 3;# x7 r+ j: O+ x- m, Y, @
dp.rgdispidNamedArgs = NULL; 0 M. i% d; \5 [5 s dp.cNamedArgs = 0; . K& Q( F, m) V7 b8 _. q4 H! @* f, N
// Call IDispatch::Invoke() . U$ L* [' m$ e8 \ 2 R {, b* t' t( M# A hr = m_pDisp->Invoke( ' ^1 i7 `. a8 ?" y5 Y pokeID, 9 |8 d5 @2 d6 u( e! d IID_NULL,0 b& i* |7 R0 d0 \1 D
LOCALE_SYSTEM_DEFAULT,. t# Y0 K, L e) v* a4 g7 ]0 U% @
DISPATCH_METHOD, * s; r( K) x/ [0 b6 b &dp, 4 u# A$ _, U: m$ [- p; S NULL, - Y) z+ m! d- k. h; g, a3 M &ei,; O4 ]& G% @2 \+ i& I
&uiErr);1 g' ^4 S: z* c$ V1 `& Q: r d
+ D, j6 `( j# L SysFreeString(topicStr);: ?1 T. l0 |+ Z: a
SysFreeString(itemStr); , ^9 V% `8 a6 T; G* x B SysFreeString(valueStr);/ }4 L3 J n, c( p% w% m1 V8 C
/ n+ S9 X$ y Z# S+ J
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???! d4 J& D! ^" Z/ s
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???? # u, ]) T: Z1 y9 B' M( ~! B( V7 t' M3 e" z8 B. g$ I9 u
" J! Y2 @' `! [2.这是request的程序6 Q4 ]* z; X( q' ^ w' a& M- B
// Request a value from Extend ( [% v( z) w) [+ D// 2 f! _$ e7 i5 N// Initialize the variant that will hold the BSTR. Set the variant's * r) G' V! S9 ], A7 R, M7 q// type flag to indicate the fact that this variant holds a BSTR. Place the ; ^* S, t, D9 N// BSTR into the variant structure.; ?' o% v! |$ K, [+ c s3 G8 F
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: O$ t+ k. _2 Q# }( p1 k. Y
' v# o& o. W0 v/ k* A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 q% m& m6 j6 {3 Z; {& {8 g VariantInit(&requestVariant[0]); ( h0 u% z3 l( ?2 U
requestVariant[0].vt = VT_BSTR; ) I7 W1 q6 f9 Q# r, F" ^ requestVariant[0].bstrVal = itemStr; ; B1 d* o4 q! A; D- P7 ] ( {& j9 o( L+ k topicStr = SysAllocString((WCHAR *) L"system"); ; I4 |/ u- c+ K5 O+ _4 t VariantInit(&requestVariant[1]); 1 `. s6 H3 Z( O9 S/ F$ {* ] requestVariant[1].vt = VT_BSTR;; ^0 t I( y$ E2 c: q g# C+ R- B
requestVariant[1].bstrVal = topicStr; 8 J; F- p' B6 x2 K* \6 x % m6 s9 P% ~ l( r// Set the DISPPARAMS structure that holds the variant.7 j. E8 @: D$ J8 l& A! | K
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dp2.rgvarg = requestVariant;8 T! B7 e6 O4 J( r6 t, d1 q
dp2.cArgs = 2;6 P/ ?9 Q. j8 d6 l4 i7 e
dp2.rgdispidNamedArgs = NULL; ( x/ G# v" \) L$ o dp2.cNamedArgs = 0; 6 y- @3 H4 U5 w2 [; G) o ( f8 }3 h3 A- j1 O: p4 A var.vt = VT_EMPTY;: b* M3 k/ ^0 P/ R* F
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// Call IDispatch::Invoke()/ o/ ?# [1 Q/ P8 Q( i" {# b G
6 A& u& C: @7 [4 H0 g* J K' M2 N hr = m_pDisp->Invoke(; B W) Q; ]+ B0 ]+ s
requestID,0 \! b+ j9 H0 N' o: ~
IID_NULL, $ _; a+ ^% r p. L LOCALE_SYSTEM_DEFAULT, $ _' E1 c, u1 s6 @' f DISPATCH_METHOD,; I/ Z% V+ J v4 S D
&dp2,- z2 \' L& d. R) d6 z5 T/ m$ C" B
&var,2 V( S% c8 ^ }* U
&ei,' N$ ^3 K7 O! e9 n# c& ~" C* d, w/ I
&uiErr); , E0 s1 t! y/ M7 o& I& S7 t! G) e0 h5 L+ q+ _& ~/ w
SysFreeString(topicStr); % `* g8 H3 u, ^5 o1 D SysFreeString(itemStr);6 z }1 r- t4 s3 l
请问该程序是获得extend里面的哪个值? 5 h. |- u+ `+ L$ \* Q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????