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:; X3 V# y' {: [7 Z0 w( N l
Name = (WCHAR *) L"Poke"; . U& R: k- ]7 a% N- K " k t& _: Z1 }0 x' d, J P2 J! x
hr = m_pDisp->GetIDsOfNames (, e ^' Q9 P: F* w, F, @% q
IID_NULL, // reserved & }. N% k. R+ i! Z. G: e &Name, // Array of names to get IDs for2 l2 j6 o( |; m8 O7 `3 G7 e* k
1, // # of names in the array , o# R) i$ m% d; m" y- ~ LOCALE_SYSTEM_DEFAULT, // System locale0 P& J4 x, k' L3 Y: h
&pokeID); // Array of IDs to fill on output: \. [. `9 B1 Q( m7 `6 H j/ ?
& `8 A. Z+ Z6 P- g% W3 u2 ^ if (hr)9 O6 h; x& G" k+ u3 [! \) H
{" Q }9 S* ?" V! f) t8 t" J4 m
MessageBox ("Get Poke Unsuccessful"); . [' }1 C6 W3 C- z return;8 l- t+ R; t& Z- }; ^
} : G* `; N! a8 K% l; h' { 4 c4 D7 n4 l. N6 ?, f i6 `/**************************传递数据给extend**************************************/ 6 l; H1 _% C" G' j) x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 D- g( P; X6 Y/ ~ + m6 A; F- h4 u3 B3 t0 C
valueStr = SysAllocString((WCHAR *) L"1232"); : r8 D2 z" p8 T6 s VariantInit(&pokeVariant[0]); 4 ]( Q0 j5 }( l W" T
pokeVariant[0].vt = VT_BSTR;( x! v4 q6 L4 W, _' C- Q: z) ~$ c
pokeVariant[0].bstrVal = valueStr;0 M3 ~8 f( X: C: \. B
4 S4 H6 m; C9 G# o: ]8 C& Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& g% n% ~2 P. M
VariantInit(&pokeVariant[1]); / {/ Z9 Q: C0 |7 @. Z- U
pokeVariant[1].vt = VT_BSTR; k* x. v! F" l8 j6 E1 b pokeVariant[1].bstrVal = itemStr;5 Q4 h: O8 f" P9 B
9 m5 B8 v+ u4 y7 c2 V" t* ?- ~8 J
topicStr = SysAllocString((WCHAR *) L"system");, `( D& m k, B5 o/ N! A. z
VariantInit(&pokeVariant[2]); 7 d# I" q' {5 F' ? pokeVariant[2].vt = VT_BSTR;8 G! O9 W3 {1 h$ `: p
pokeVariant[2].bstrVal = topicStr;* m# s0 I3 P5 Y U& T) H
/ ~2 q# f6 d, l! H! g+ ~8 |// Set the DISPPARAMS structure that holds the variant. . ^$ Z0 ]5 X# m" [ ' g: D0 E3 o' Z1 ? dp.rgvarg = pokeVariant; ! l, a5 M1 Y0 T/ q! l0 G9 {* ]/ i' u dp.cArgs = 3;2 Z c3 n1 C4 e( j- ?
dp.rgdispidNamedArgs = NULL;+ v$ {2 i7 ]4 N/ h/ I& W
dp.cNamedArgs = 0;9 ]! q* ~/ c6 j8 i1 v- r
3 w' H7 `, f& \! f3 B
// Call IDispatch::Invoke() % | ~0 U1 ]% } H$ ~/ |7 M2 M* E* E* H
hr = m_pDisp->Invoke( ; L& E: X) r+ ~( R% q# T pokeID,9 S' d3 K+ J, t6 e- j
IID_NULL, 2 I3 F. j; I2 C7 e+ l# h; Y; A: s LOCALE_SYSTEM_DEFAULT,. O* N% i9 e& k- V1 V; t3 l3 g4 o
DISPATCH_METHOD, ! }' L& x1 q0 R1 s$ _0 i1 a &dp,6 n: J% i( q. \
NULL,, }8 x/ [$ b2 h
&ei, 3 j9 B( S& Z, L$ v, g( e( g &uiErr);3 E* s. }0 |5 G
$ k0 K& F7 Y: P; t6 A+ a7 p SysFreeString(topicStr);1 u, H4 N C/ j+ T
SysFreeString(itemStr);2 o# ^+ H1 X! ~" I" ]) R* T5 Y- e
SysFreeString(valueStr);5 b: K# F( i! A; c
* s- `1 ?3 d: f Z
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???- J! c+ S3 _5 F6 R6 U" i! R, c9 U
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???? ! e' b; y7 |+ }! B: r, N- C* e2 ~/ M& S4 w: b/ L7 o
L8 T* \& R2 f: Q8 n3 E
2.这是request的程序 - p. e7 m" h5 C! J) Q |& W// Request a value from Extend9 m+ q! a. V1 L9 ?
//( `2 {7 S7 T4 h. k4 s) ~) E
// Initialize the variant that will hold the BSTR. Set the variant's* ~9 X# J7 f; d/ Q% }3 E, C. `7 Q8 L
// type flag to indicate the fact that this variant holds a BSTR. Place the # g; b4 O# x" v+ J! i& f& g: a/ m// BSTR into the variant structure. " p% f6 ]* W3 M r- g2 c) [8 t# L' {( k" N5 l9 W1 ^& l5 K- m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 ?1 V# {6 ?6 w- u9 ]+ T ) k9 E! ]. n3 V: N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 {+ M/ W( V( g VariantInit(&requestVariant[0]); - q4 z+ K3 \* p/ W0 |
requestVariant[0].vt = VT_BSTR; 7 {$ P- t/ w u* m requestVariant[0].bstrVal = itemStr; n. c. W$ X' }0 d. U ( \8 w& o8 y. R* ?- } q topicStr = SysAllocString((WCHAR *) L"system"); , j, j& Q3 j0 i; I VariantInit(&requestVariant[1]); ; F7 v8 n+ D; P5 S; q requestVariant[1].vt = VT_BSTR; - s K- }4 [0 F& i8 D5 ]6 Z requestVariant[1].bstrVal = topicStr;% X' B4 q h- F5 G- Z# D. j
2 P3 }8 E# ]9 X7 A; x5 i Y// Set the DISPPARAMS structure that holds the variant.. p' G8 h, j6 s& `# @; }+ r
- s0 p1 Y' e4 k+ E, ^! @% c dp2.rgvarg = requestVariant; u! ]- M# a# I; u
dp2.cArgs = 2; 9 R" P5 T4 p' Q! H" ~ dp2.rgdispidNamedArgs = NULL; ; I& a+ I' i t q x' c dp2.cNamedArgs = 0;7 O" r6 m6 W W
. ~. h1 e' v z) o0 ~% m
var.vt = VT_EMPTY; U; ?1 U. M& V. u% p) y
+ A; m |" I% H7 v, w// Call IDispatch::Invoke() , m8 Z& J5 B5 I5 p$ p! K1 a ! j, T9 r! M" u" E+ m+ V ` hr = m_pDisp->Invoke( . f# G5 u6 N/ r4 |; Q requestID,# P' R# e0 P/ O8 Q7 P
IID_NULL,7 K5 A* g, S4 G ?$ \( @) W
LOCALE_SYSTEM_DEFAULT, " c8 M" I1 r: V0 e% }% e DISPATCH_METHOD, : L% u5 c% c ]- _: _ &dp2,. U2 T9 o) N9 }7 u4 Z8 f
&var,* U4 d7 C* B9 J5 q1 n
&ei,' T. k+ E5 ]# i# H
&uiErr);4 C) s' ^5 W- c& L8 R7 _. n
% r; w0 u+ O4 s, \; e
SysFreeString(topicStr);6 c5 ~) z7 \+ M. G
SysFreeString(itemStr);6 h' W0 p( O0 z- i: I
请问该程序是获得extend里面的哪个值? - k4 [% s- v' D3 V6 l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????