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+ e3 D6 K% j; G; k$ J$ Y$ f
Name = (WCHAR *) L"Poke"; ?* {$ |' D. p! [, F) G
1 {! J" x% k" T& b" O
hr = m_pDisp->GetIDsOfNames ( ; v" n0 y* K0 f IID_NULL, // reserved ; m! g3 D5 j9 ], A' ?4 H &Name, // Array of names to get IDs for: `. H- ? W* Z v
1, // # of names in the array2 ^3 x0 I+ h! d# R( T/ m% v( O7 v, T, s
LOCALE_SYSTEM_DEFAULT, // System locale: C+ N. {0 q3 G
&pokeID); // Array of IDs to fill on output - ~0 _: r; M5 p3 D. z ! L3 S+ S! o) k* }# p
if (hr) & p6 t# d. s9 {/ K! f% ` { " u. v1 ~- }& l0 V* U! K" ~ MessageBox ("Get Poke Unsuccessful");) p+ D' ^$ D* J' \
return; 8 H3 Y$ h$ }& t- j } 4 L' V0 S8 I1 d: q# c- D' L' d8 r7 [' f/ ~! [ i, L4 T; `* \
/**************************传递数据给extend**************************************/ ! D) K% _" s5 g {8 e, _1 e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! [. w4 ]8 Y2 N5 q * v- M. V& y. `/ i% V, i( J
valueStr = SysAllocString((WCHAR *) L"1232");) R# x6 L0 g9 X7 ?3 G
VariantInit(&pokeVariant[0]); " z5 |" \; G. a: V
pokeVariant[0].vt = VT_BSTR;* @. j% v, _, Z. x" l
pokeVariant[0].bstrVal = valueStr; ' Q6 p! n1 n- X- m/ D0 D& | c5 L 7 \/ N8 A$ W5 Y7 z% _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( C% F9 C# ^5 ^" O
VariantInit(&pokeVariant[1]); 9 _; \4 V& ~; m- R) ^. n3 y pokeVariant[1].vt = VT_BSTR;' i( v8 \: m7 [3 o1 X+ @
pokeVariant[1].bstrVal = itemStr;& j* z% n) o; ^; i# }$ ?5 Q+ d, V6 F
2 F! \4 T7 V! W: S* a; J6 ?- R, o( r
topicStr = SysAllocString((WCHAR *) L"system");0 q- L R5 a8 R* v; `: e- i/ ^
VariantInit(&pokeVariant[2]); $ N$ a" G8 m ]* @% h2 {) Q pokeVariant[2].vt = VT_BSTR;' G# s7 l4 B/ X" n+ J' `: b
pokeVariant[2].bstrVal = topicStr;# h6 E# }/ k% v D4 ]* P
& s( @7 C+ D6 O% [* N
// Set the DISPPARAMS structure that holds the variant./ n8 {7 l" {8 J2 F: w8 G7 @4 _
7 z9 k. v9 e3 z
dp.rgvarg = pokeVariant;* x0 {0 p& H, [6 u2 j
dp.cArgs = 3; 6 R- J4 Q5 ^6 R& I dp.rgdispidNamedArgs = NULL;8 g8 ^; y) `& R) R, R# Y
dp.cNamedArgs = 0;; ?5 v6 S3 }. W, Q* T: S
+ ?+ Q* ?: t S+ a# W5 e
// Call IDispatch::Invoke() $ {7 X1 Z9 Y; X. Q1 V1 X5 { j4 ?* Y$ S+ \$ g2 a
hr = m_pDisp->Invoke( : K1 `+ @$ A% F, C9 j7 z/ y- k pokeID, 0 i+ P/ C* x/ q# |8 Z IID_NULL,' \3 i& E5 c1 r, D
LOCALE_SYSTEM_DEFAULT,0 \0 b. V. C* Q, s/ O c
DISPATCH_METHOD,: a, o, s) r$ t
&dp, 8 g8 o7 n2 Z9 ^, } NULL,, a) p/ n1 N" O& ?$ @8 p
&ei, w' a7 ~1 M8 X2 _
&uiErr);: n3 ]$ F, A l( d
% x2 M& h% c4 u4 a0 g SysFreeString(topicStr);. N; m+ }! p5 g5 ^ J2 l1 b3 `8 l( w" t6 h
SysFreeString(itemStr); . n. L, ^( E% n9 L! v+ X* d2 Q SysFreeString(valueStr); * k) A0 x2 z* G4 j$ T2 O$ r+ `$ r2 y* W7 C5 T
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??? 0 ]) E2 S N# P' m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???? ; W7 D( L6 Z0 m# c" F$ O. W! N" H! D E+ p* X1 U8 x2 v
, b+ R2 a7 R4 R, P
2.这是request的程序9 e3 r2 V) b6 x
// Request a value from Extend , h$ K6 g6 B9 a3 z( c2 D//4 e7 [3 M+ A$ C5 y
// Initialize the variant that will hold the BSTR. Set the variant's6 H% n, L1 v4 R
// type flag to indicate the fact that this variant holds a BSTR. Place the % P( W) I1 l8 ]// BSTR into the variant structure. : |4 |" M4 Q+ x* Z2 Y& s! v: \; a
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: R( a1 U ^( z6 s& M
3 J6 `& `5 X9 P) m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - v8 C6 I$ t% }# [- Z* e; e VariantInit(&requestVariant[0]); # U# k! o3 u( x9 B: M" Q: z
requestVariant[0].vt = VT_BSTR; 4 \0 y/ v1 x' I } requestVariant[0].bstrVal = itemStr; 7 w% h9 |1 q: Z; m1 m6 K- X$ u, g, r$ r
topicStr = SysAllocString((WCHAR *) L"system"); . [1 i# K4 s' c VariantInit(&requestVariant[1]); ) N! d" r. J8 F9 @
requestVariant[1].vt = VT_BSTR; & R5 _& c4 G3 @3 a requestVariant[1].bstrVal = topicStr; + @5 i- G7 j/ L; `8 w' d ( Q: `7 L6 c2 i$ ^8 U( j// Set the DISPPARAMS structure that holds the variant.7 ^2 ^8 O2 K+ A6 I# b; p
! e. D# ?2 d! [ dp2.rgvarg = requestVariant; h: {9 ~& R3 Y& y* I
dp2.cArgs = 2;5 u x- V: n0 n, F7 g
dp2.rgdispidNamedArgs = NULL;5 L% g3 Y3 j6 h! q2 G# z: N
dp2.cNamedArgs = 0;9 ^" c- S$ |4 h! s/ Q6 Q6 O, ~
, H, E9 @& q3 F, K6 P8 d var.vt = VT_EMPTY;: ]0 M# X' M2 @, J9 L" c
3 ?. G* E3 c" M. b# Q// Call IDispatch::Invoke()( c4 J) _4 r# w6 P5 Q3 n
' a) F+ H% ?$ [ v; Y! ^( @ hr = m_pDisp->Invoke( % D0 `) f2 a$ }6 }) d( d requestID,6 J% n: l$ e- g
IID_NULL, 3 {& D3 M$ w+ S2 o LOCALE_SYSTEM_DEFAULT, 8 \/ D" f# c' o' V$ w- D- r DISPATCH_METHOD, 0 Y+ u9 v0 a1 Q1 O6 n &dp2,7 l7 J+ v' Q. }- o% C
&var,8 W( i4 A4 U( H; O6 ]! g
&ei,5 e) K& s/ m$ L4 V* @) W
&uiErr);" B. D* I- R- g5 A' G" D/ U$ b