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:) r2 L! B! J& A; N; D
Name = (WCHAR *) L"Poke";; c7 ]9 j* t2 K* Q9 u$ H& u7 X" ^; f
$ L5 J! J( ~- k" A0 a/ y hr = m_pDisp->GetIDsOfNames ( 9 W3 Q% r N- k! A1 f. t IID_NULL, // reserved9 {( m0 \1 s! q* D$ W7 c
&Name, // Array of names to get IDs for 1 C4 ^5 \5 V6 H+ ~ 1, // # of names in the array- Z' H: A* Y& Q" P2 |. ]9 i
LOCALE_SYSTEM_DEFAULT, // System locale5 k/ Q. R& L3 k+ }0 y
&pokeID); // Array of IDs to fill on output ( c6 y' r! }+ `( a) t0 Q& | 6 J+ m! K( F- E. J
if (hr): m. R4 F; O0 Q
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MessageBox ("Get Poke Unsuccessful"); 8 `: a# b& ]$ l& @( P return;6 |4 `% H) P5 z3 n/ _2 ~+ q- `3 i
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) o( { p, b* d. ?- [! o; N d/**************************传递数据给extend**************************************/( D$ g0 Z" `* P' i- G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% f) i. Z( T; P8 N( H
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valueStr = SysAllocString((WCHAR *) L"1232"); V7 m+ L6 |) g4 ~
VariantInit(&pokeVariant[0]); 7 X9 ^$ H% |, U; [+ k+ U
pokeVariant[0].vt = VT_BSTR; 0 }- j- T& C4 c# a' V0 W7 ] pokeVariant[0].bstrVal = valueStr;/ k% {3 }' X r( K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. s8 F' R+ J& v: F
VariantInit(&pokeVariant[1]); ; F; i f) s9 u" M. l% T4 m pokeVariant[1].vt = VT_BSTR; , J& y+ M8 b0 l- N# M: k pokeVariant[1].bstrVal = itemStr;0 M8 g( w& ?0 X, i/ ]- {' O
6 `! e0 v4 |, m5 F( X5 q topicStr = SysAllocString((WCHAR *) L"system"); 1 [3 v2 ?$ S- `. v- k VariantInit(&pokeVariant[2]); $ x+ T& w# v9 g8 V
pokeVariant[2].vt = VT_BSTR; 5 c. P5 t# X8 L" T: _! \ pokeVariant[2].bstrVal = topicStr;% E% Y! s+ Y: Z) H
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// Set the DISPPARAMS structure that holds the variant. 7 I. h! l% H! V. ?- l) W * N/ R! C* r6 P$ s) d; f* n dp.rgvarg = pokeVariant;/ E% P; `) j2 t+ l/ z w
dp.cArgs = 3; 4 q' ]9 W; E% \) O* L dp.rgdispidNamedArgs = NULL; & o' D" Q0 u# O dp.cNamedArgs = 0;& [( M9 g- d9 }$ z! \
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// Call IDispatch::Invoke()! @9 y3 U0 K* s1 Y- T& X0 k8 f' u7 F
! V9 {$ b) I& n2 U1 S# C4 D+ J hr = m_pDisp->Invoke( . @6 R1 j. Q3 Y& ^. P' l" T8 m5 M pokeID, 0 M1 `& w' B2 z/ p: y IID_NULL,- t) i, ^. R+ y( E
LOCALE_SYSTEM_DEFAULT, 4 B* b+ B4 [, H0 W) Z: N4 \ DISPATCH_METHOD, , N& f, F- t* q* A; `( L- m M &dp, 0 Z6 M% C9 e% |: _ NULL, : m3 B: e4 W4 I$ A4 }/ i &ei, 2 c# I0 r. m9 ]! j6 K# F &uiErr);0 d5 f- h. D. V( I7 m! f7 h
1 B; V4 z% w0 h; q/ k+ P' B SysFreeString(topicStr); 9 t/ Y. i% [0 x2 T3 N2 p SysFreeString(itemStr);: W- K. ?) T. m' v0 W- s) ^; d
SysFreeString(valueStr); * z o/ v) p+ R- \# {# b. ]2 i . q5 @6 Z' Q4 n( F8 q8 b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??? + |4 B, ^, k' g# L: ~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????* d1 _$ v) _4 v4 N9 S. [
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2.这是request的程序* b! ?9 a, K6 P' @1 }
// Request a value from Extend E7 ?1 q" ^3 {( O; B
//8 |) s g, X6 j) d0 \% W9 `( X
// Initialize the variant that will hold the BSTR. Set the variant's1 j- p5 |8 P8 N6 M4 a* [5 R
// type flag to indicate the fact that this variant holds a BSTR. Place the. l/ A! I6 J; a* ^- R G% F3 P4 p- _: c
// BSTR into the variant structure.8 z: _' B! B# p0 s5 s) F1 C- f: J$ [
C; ]" Z& r5 m7 h4 ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ ]! [- I d9 B0 K n ( ~( F- @4 P- Q8 z: @$ V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' b) Z3 Z8 _; A$ n7 u. T
VariantInit(&requestVariant[0]); 2 g7 G! C. |* Y+ ~+ H
requestVariant[0].vt = VT_BSTR; 3 Y2 {- v/ a) M% S requestVariant[0].bstrVal = itemStr;4 M8 l0 v* ^7 z
! a4 X$ _3 l/ I/ N! A2 V+ e topicStr = SysAllocString((WCHAR *) L"system"); ; F+ K& V# V7 u8 y* \7 E VariantInit(&requestVariant[1]); X; ]' q) c4 m- f: d/ e$ y requestVariant[1].vt = VT_BSTR; 1 G' p& L# c) g! j0 c( Z requestVariant[1].bstrVal = topicStr;# t4 f' z- N! ?( _, f% Q
$ s1 S- y4 |' i+ j0 R8 S) I) K, v// Set the DISPPARAMS structure that holds the variant. , N0 u4 W1 }8 k) L/ i2 t$ P* `3 a0 p$ `9 r: w/ ]0 |
dp2.rgvarg = requestVariant; & M- ? p+ l/ t dp2.cArgs = 2;8 j( W% y% f# Y
dp2.rgdispidNamedArgs = NULL; ! D$ J1 e- }" z# k) y! @2 I dp2.cNamedArgs = 0; 5 H F' O4 X; A" _8 i( }8 F! X3 [4 m. o r. s" n M, o
var.vt = VT_EMPTY;: M# G; z! v- k- u/ T
( b- H) @' |, I- U: M/ r) H: z// Call IDispatch::Invoke() * X* t% N" w( j8 [* x$ E. i# C6 S/ G2 \
hr = m_pDisp->Invoke( 1 J# k x4 z! r! d requestID,) ]: P2 p; E. d$ I! N) u! B
IID_NULL, 4 a! s, g2 ]( h' d& y) C3 J LOCALE_SYSTEM_DEFAULT," t( c V$ E1 P/ p
DISPATCH_METHOD, & f0 f* h6 l$ H5 x &dp2, / W2 `& G- A& n! V8 n7 E- x/ g) n &var, ; S" I* ^5 T1 n- S &ei, 2 r$ @7 k+ r7 l3 ]- x &uiErr);* [" K$ [. [6 z% O
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SysFreeString(topicStr);9 F. K4 V. H; \2 F
SysFreeString(itemStr); $ A7 j! U2 y, P: g0 E1 Q: `请问该程序是获得extend里面的哪个值?# O4 l* I7 U3 F5 H! O$ C
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????