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: % a- \" {; ^1 l4 R) qName = (WCHAR *) L"Poke"; & o" w# k9 K; x6 V5 \* D ' H0 D2 Z: c, j4 f! m hr = m_pDisp->GetIDsOfNames ( " P, i3 {: ?" A% J( |0 `: r0 H f IID_NULL, // reserved1 r7 c+ ^1 l8 j' }
&Name, // Array of names to get IDs for+ B! D7 R- k# _" L% K
1, // # of names in the array ) ~# S/ Z! u1 z- i; v( e LOCALE_SYSTEM_DEFAULT, // System locale. E# E2 ~ O" p% }% M6 U
&pokeID); // Array of IDs to fill on output) K u" ]% O# ?8 r9 `# o7 Q
+ [4 [. u5 b# ^9 c: X if (hr): D7 n+ [, z5 J3 n, v% e% n' q" W4 W
{ Z7 O* S1 r7 S! u2 @! x; L; G7 a MessageBox ("Get Poke Unsuccessful"); $ A8 i+ t0 f3 h' Z return; $ K7 s( }9 I9 S' } } ( b' \3 \& B( A1 z8 ]# T) W: m * Q. L- b& O M! V; `/**************************传递数据给extend**************************************/ ( N+ N8 U* \. I5 ]) ~# ?- N; j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 o+ b" j+ P4 e! E' \" J3 j , v- k. g) C- \3 b
valueStr = SysAllocString((WCHAR *) L"1232"); / ^' h1 o# Z5 l+ W: o VariantInit(&pokeVariant[0]); ) v3 d5 R$ z6 d
pokeVariant[0].vt = VT_BSTR; # m) s% V& y% h8 q0 f pokeVariant[0].bstrVal = valueStr; ( z, p, w/ f( Z5 G1 V* M2 w; L1 t3 @5 ^: w |! f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , c. H: r6 _: m2 b! S VariantInit(&pokeVariant[1]); # t$ U/ I6 v1 B. M9 K1 E+ i pokeVariant[1].vt = VT_BSTR; ! N4 h' f2 u6 a" a% Y1 h. Y' W pokeVariant[1].bstrVal = itemStr; 6 Z4 V* i# z' j' \* _6 V% w5 G: R2 g% E/ V
topicStr = SysAllocString((WCHAR *) L"system");0 z: S/ a+ u6 j3 K2 {
VariantInit(&pokeVariant[2]); 3 {1 y3 W$ j. X- q4 x* U0 F
pokeVariant[2].vt = VT_BSTR;* ?" O# b# R. q% M
pokeVariant[2].bstrVal = topicStr; : B1 I. t& I' J3 }: M+ p7 k. g7 T6 s$ U
// Set the DISPPARAMS structure that holds the variant.5 r& ~4 X' L* u( i2 j' Y% J& S
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dp.rgvarg = pokeVariant; ! d4 s% _3 l2 V7 P dp.cArgs = 3;# W2 [' s% G$ Z7 X$ ?7 Y
dp.rgdispidNamedArgs = NULL; 7 ]1 ]: m( [. c, Z dp.cNamedArgs = 0;' z7 T8 ^. q0 a& d8 @
' ^. _( `9 z4 R6 b6 D, a// Call IDispatch::Invoke() , o8 f( N- i/ }+ x- g5 j" s 1 v& N! T! b0 d hr = m_pDisp->Invoke( ; @/ {6 d( G" {/ X5 u8 W pokeID,/ j; i7 m; p5 g/ H: w9 u/ \
IID_NULL, 3 Q" r; ~/ {0 M0 z5 r LOCALE_SYSTEM_DEFAULT,- g* J% z+ k' E$ u
DISPATCH_METHOD, 8 S: m3 ^! k8 c &dp,$ I6 q$ Z& f& i, [+ r& L$ ]0 [
NULL, + v2 S8 v5 y! {2 Y# L &ei, ) m5 O. U1 Q3 i2 g &uiErr);/ k* O# F$ _: }+ N1 S3 k
4 {9 J0 `$ q3 l: G6 u SysFreeString(topicStr); 8 V3 [4 J" J! Z, l$ S SysFreeString(itemStr); % M0 ~# y ~$ C SysFreeString(valueStr); . R H7 f& m) u2 x, i$ N% v4 X: i/ S3 n) K
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???5 } ? ?4 R6 t
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( m5 c# Z7 K; E# o7 J0 z; Z5 u& D( \) h9 K# U4 F
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2.这是request的程序 7 ?0 o m; _3 p9 `% E: ]// Request a value from Extend ; _1 ]% c, |! I" t, f1 A//0 P3 j- G6 p' L& w4 `$ }) s* J+ t- S
// Initialize the variant that will hold the BSTR. Set the variant's# y7 S+ v" r- b2 k* M
// type flag to indicate the fact that this variant holds a BSTR. Place the / u$ d( U& N( H3 |// BSTR into the variant structure. 9 A/ S7 y& c7 r5 ?) D7 Y6 I# j+ J2 d F. Z8 s; ^3 v: H$ u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 F7 _3 W) K3 m/ A2 C
$ {& q. K0 L9 y9 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % I7 R. N! L- T( o8 @+ K1 P4 J VariantInit(&requestVariant[0]); # L7 w+ l; |! Q1 R8 h6 Q
requestVariant[0].vt = VT_BSTR;( v% S" P. H6 }( I3 b) n" d
requestVariant[0].bstrVal = itemStr;" Z4 u% q- f5 X* ^ l6 F9 t6 L) ]
/ Q8 L8 U* T1 _# I k) b7 Y
topicStr = SysAllocString((WCHAR *) L"system"); ( f! N( I. E2 F0 N7 l VariantInit(&requestVariant[1]); ; e- A0 ~% E. H6 _5 O8 x( P* l+ _& q requestVariant[1].vt = VT_BSTR;: N+ n3 q! x" f: m
requestVariant[1].bstrVal = topicStr; + q: ^: U7 p/ o$ E1 N- Q8 o0 w 5 x D* c2 d8 L: y C% p. M o// Set the DISPPARAMS structure that holds the variant.7 m3 R1 Z# r0 x5 y: c+ m
/ {- o( B) J- x
dp2.rgvarg = requestVariant; 0 }/ e# ]: g1 T1 R' R$ J* O dp2.cArgs = 2;0 A5 v# [8 M) w) `: K9 F
dp2.rgdispidNamedArgs = NULL;% d+ m. z4 j" R; e4 j' l
dp2.cNamedArgs = 0; 5 V+ i) D& c4 [6 c7 R' u2 E S" C/ ~1 P
var.vt = VT_EMPTY;/ }+ b S( h# p* h/ M1 k1 F
7 n) F- }$ ?7 L+ n1 ]// Call IDispatch::Invoke(), q7 F9 \- E; L6 m# y/ B
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hr = m_pDisp->Invoke(7 N1 I$ G2 c! X! W, @9 m4 z
requestID,7 G$ r. Y- ?: z+ r$ ~# T
IID_NULL,2 R7 a' I* r3 t5 Q7 L& O
LOCALE_SYSTEM_DEFAULT,3 h; }0 Z. {; L
DISPATCH_METHOD,1 K( g* L% X- l. e1 u7 n
&dp2, 5 f% m% G# U* O N. l &var,7 L9 @( [3 Q: p1 G, { h s
&ei,! ^" X8 M# R& D8 ]% T( W
&uiErr); 8 i. h2 K$ z5 X h ; D: k7 h0 G% ]; ~; T SysFreeString(topicStr);% y8 `/ C: E5 C# K2 ]
SysFreeString(itemStr); 2 ~3 Z2 F8 h2 k( B2 ~$ |% @请问该程序是获得extend里面的哪个值? 0 s' \, }" H. `) F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????