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:- `/ n% u5 z3 n
Name = (WCHAR *) L"Poke";9 s' o3 @) t9 N; d( Y' e% R: _
9 J( K3 j9 `' [ e; C; e hr = m_pDisp->GetIDsOfNames (( p9 m3 d- O0 v( ]
IID_NULL, // reserved& [$ ~2 p" s) a( L2 O4 p
&Name, // Array of names to get IDs for ! f2 w* m& i& ^' P. ^! u" p D. t 1, // # of names in the array8 B. u6 x' d8 B ?* _# K8 x
LOCALE_SYSTEM_DEFAULT, // System locale, D' F, P c$ g0 G* ]
&pokeID); // Array of IDs to fill on output # o. c/ F9 c, z" N: x + i, V) N5 L8 w0 {
if (hr) 6 R$ [# H# `- H6 l* e {" T" N5 i- ~8 `* R* d4 {
MessageBox ("Get Poke Unsuccessful");, X. K% x# h# r8 V
return; ) a4 g: ^4 n X, S, F+ k! _" F, L }& t) L6 b8 K/ x* }. {2 W. L
* L6 h# b6 p; L. M$ C- r/**************************传递数据给extend**************************************/5 }- P1 l7 W4 ]# i5 {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 Z a8 \& q! @5 w4 p" n
$ N C; u( |: `& d valueStr = SysAllocString((WCHAR *) L"1232");2 c _/ T j6 Q8 M4 v: p- B
VariantInit(&pokeVariant[0]); . h, k8 j5 f# H% G( X; _; d9 O' L pokeVariant[0].vt = VT_BSTR;& l {; j5 P: V4 _' |& s" `5 B p* L
pokeVariant[0].bstrVal = valueStr; * t/ l* G5 a. A( M; A! l( | C4 y$ _ R# K8 J( x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ H- a V/ n2 g1 q: R VariantInit(&pokeVariant[1]); 4 g z+ |+ s+ M1 a. T/ }# ? pokeVariant[1].vt = VT_BSTR;( M; l* G/ G9 q! u
pokeVariant[1].bstrVal = itemStr;, F' I) h; d4 }* X
! G- x( N& B9 g) [ topicStr = SysAllocString((WCHAR *) L"system");+ ^# X' p: H: s# A* e& U
VariantInit(&pokeVariant[2]); 4 o0 d7 a- w" _' J) a% b
pokeVariant[2].vt = VT_BSTR;% o/ U9 ?+ C5 t: m+ e( D0 J: H
pokeVariant[2].bstrVal = topicStr;& s- x; w; o5 ~4 T$ T
' z ^9 E4 }% ^, I
// Set the DISPPARAMS structure that holds the variant./ o5 x; O9 t8 b# T$ K3 l; h
. @, }/ t& u# n2 n7 U" @% M dp.rgvarg = pokeVariant;% N; m5 L; _% C6 g: f
dp.cArgs = 3;) [8 M- H& W' c- o
dp.rgdispidNamedArgs = NULL; % b) a. K# k- X+ o7 r5 ]6 b8 Y$ o dp.cNamedArgs = 0;- ~0 J* p( e2 u3 z+ H
; q6 O Q, R v# h2 H// Call IDispatch::Invoke()3 {0 E3 K: ]$ n, c) t
- ], ~2 }. O& d0 {
hr = m_pDisp->Invoke( $ C; l" T6 i) N0 W% t pokeID,1 d/ [, q% G- ?2 ?2 _
IID_NULL, ' g5 L, {% z5 t$ Z" t LOCALE_SYSTEM_DEFAULT, 1 R0 Y5 A, @0 S2 G3 c DISPATCH_METHOD,$ n% _1 y; U4 Q9 C
&dp,7 u, W: L( q8 P6 T* x ~
NULL,: S3 {4 o" ]: L0 K4 c% v( |7 J
&ei, 0 D! {9 k+ r) {, t. r, [ &uiErr);4 l, Z; \: {# b! ]
/ b B) ^ X9 i/ W* D; i, \5 ?5 v
SysFreeString(topicStr); : j; W2 s0 T: _5 e+ `2 D3 \ SysFreeString(itemStr);+ f5 e. F# g: B+ w$ _% L
SysFreeString(valueStr); . H0 D n* p% M8 Y; O % R; e, R6 |+ p# G6 E1 ]2 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???8 Y/ t+ J/ b! C# z7 ^4 p8 m; k+ b4 n
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???? * G! J) x6 P+ S& [( a8 `9 o+ G2 T2 u ?
% }7 T5 w E* x& E( L% N4 [2.这是request的程序 + R9 l7 s& N7 F) t3 E$ @// Request a value from Extend; k) F% W; Z, W' w* v( n
//# O* U" K% m3 S+ z1 f
// Initialize the variant that will hold the BSTR. Set the variant's 9 `# N; @' I2 y0 S// type flag to indicate the fact that this variant holds a BSTR. Place the/ c7 `/ [- M- f E3 m0 a
// BSTR into the variant structure.3 K0 j3 D. c: _8 m* z
' g4 `; J) J) ~3 A0 T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % a% g: Y) {% c2 Y: m$ Y. S2 g & N# J. Y5 U" k/ }- o3 h! a0 a6 t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! a8 ]0 c. {. x5 H5 v6 n+ [ VariantInit(&requestVariant[0]); ( {2 b/ B% S0 ~; `5 B5 r: t requestVariant[0].vt = VT_BSTR;: k9 q. }: i0 M. Y1 f
requestVariant[0].bstrVal = itemStr; 4 u" l+ w! D! u( k9 ]0 m ) ^* R. O: a, L/ G3 I topicStr = SysAllocString((WCHAR *) L"system");0 R, N6 J5 d, n2 E& J7 c4 U( ?
VariantInit(&requestVariant[1]); 7 Q6 D3 l3 X0 ]+ c5 \0 f" Y
requestVariant[1].vt = VT_BSTR; + l4 E ^; i3 f/ J- R' w requestVariant[1].bstrVal = topicStr;3 i: c+ Q& R" ?9 E
7 Y/ g6 d: o- q1 t// Set the DISPPARAMS structure that holds the variant. 4 C) p' [+ ^, Q3 J * o6 ~1 `% ~. q+ {% \6 { dp2.rgvarg = requestVariant;8 \* {/ a: I2 U; N# w; J1 v. l: ^4 s; H
dp2.cArgs = 2; $ B2 i$ o$ `( \8 z/ T dp2.rgdispidNamedArgs = NULL;) F. u) O3 o3 v/ M+ X
dp2.cNamedArgs = 0; 5 G: ?4 ?' ^2 Y. y, n4 k0 D9 Q: k! m( C G. t
var.vt = VT_EMPTY; 5 R4 D( N$ l1 u; d' @* g' G% @* F C8 m
// Call IDispatch::Invoke() % Z2 I; u+ n1 m, z, [# L0 k `+ p9 m& v, c8 h
hr = m_pDisp->Invoke( $ K& `5 C1 k! t! g requestID,& `6 P8 r' v1 c0 _
IID_NULL, & d! o% E+ f5 |* i" w2 E LOCALE_SYSTEM_DEFAULT, 4 P5 C5 \: _2 f: r& n* p2 N DISPATCH_METHOD, & Z* E' Q! \& l' {. O. S3 N &dp2,7 ?. ^% q h5 y. W5 t3 a
&var, ( S( @& d/ _, P( B3 }) G$ o/ p &ei,' g5 r$ A3 k: c6 p" M4 b
&uiErr);: b4 z; `' [0 \# n/ x! j, C
% Y9 w5 t; [2 |& ^8 w( E* y
SysFreeString(topicStr); a8 d! P# q/ e7 n, Z
SysFreeString(itemStr); + d* k+ j- V4 q0 X/ j5 j请问该程序是获得extend里面的哪个值? 0 t: v4 \4 e& A4 L* D( H& h5 H2 Z& p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????