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:7 l7 Y- I" b: [* ~5 v) w
Name = (WCHAR *) L"Poke"; % }7 h) \/ R2 }2 |) Y" X , o/ X8 B5 {" a2 [* B( v `- f hr = m_pDisp->GetIDsOfNames (" M2 \) a4 {" L0 V( N! P
IID_NULL, // reserved$ a: j' s& f& Y4 U/ B" r
&Name, // Array of names to get IDs for 2 Q& n4 u5 O' r, F1 [1 Q 1, // # of names in the array 7 e$ V3 t; p/ {- W4 j& v6 | LOCALE_SYSTEM_DEFAULT, // System locale8 ]9 b- F9 N( c: @4 h
&pokeID); // Array of IDs to fill on output- f& y5 k0 @' y) c0 [
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if (hr)) E3 J9 t; X# A" t- n
{ 6 R/ N0 R7 ^6 P: l) q7 s3 n MessageBox ("Get Poke Unsuccessful"); + H, p. p8 g/ b% H- n9 u8 l return;5 C7 j0 U2 }8 Z* Y# i# j0 |
} % S% Z8 D7 ^, T! r7 U: L3 Q8 p% w' u* L5 z& Y3 H( b# t
/**************************传递数据给extend**************************************/ M6 U6 A9 ^4 {% t5 n6 C7 L8 x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! o. l/ T% ?! k! |0 I j/ `3 C/ N9 d' q4 @, Z
valueStr = SysAllocString((WCHAR *) L"1232");$ O; ~: a' {4 s- m& U1 G. ^- i
VariantInit(&pokeVariant[0]); 2 K6 _- Q6 f$ v/ D- E* W pokeVariant[0].vt = VT_BSTR; - |* Y- P+ F$ ^0 P. e) L; u, X, y pokeVariant[0].bstrVal = valueStr;8 b4 [5 Y" \3 p. I5 m0 G
7 F% v6 c5 z5 g" L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 v" ?. P! f6 E: z
VariantInit(&pokeVariant[1]); 1 R W1 Q6 @; y5 ~2 P pokeVariant[1].vt = VT_BSTR; 9 x, n5 M2 b& T8 O( g pokeVariant[1].bstrVal = itemStr; % ?* ]1 q S& A2 N+ v+ z7 O! |* N
topicStr = SysAllocString((WCHAR *) L"system"); 5 i( {+ v; M1 }: D VariantInit(&pokeVariant[2]); . C' J5 f/ k8 k0 q7 z; C
pokeVariant[2].vt = VT_BSTR; 8 P& ~2 ^$ j$ Q& M, g6 | I% O pokeVariant[2].bstrVal = topicStr;- o: W0 l! k- S# k
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// Set the DISPPARAMS structure that holds the variant. 0 p! b; s6 f( } ! x6 Q+ C0 u ?" u2 k dp.rgvarg = pokeVariant; # b0 x4 Z& R, m O dp.cArgs = 3; : N* y8 k3 q8 q, _0 |2 T) { dp.rgdispidNamedArgs = NULL; i$ d0 s. {" ^( h% ]. q- { dp.cNamedArgs = 0; y+ ]( r9 W3 S5 [, B1 ]5 r2 _! W 3 X. V5 h, R& I G// Call IDispatch::Invoke()6 S, i+ w, r* ^4 v
4 j8 G/ X8 w; S+ j/ z$ i% L hr = m_pDisp->Invoke( # T+ [ H8 s; {! R# g pokeID, - _; R" c i6 W$ D6 [/ w4 p IID_NULL, ! }7 q' L& i+ m9 c9 q- J LOCALE_SYSTEM_DEFAULT,% X& @. a' C# Y; Z/ p- o) M0 M- m/ Z
DISPATCH_METHOD, 1 m [& \& b* n &dp,2 ?0 E! }+ f( f: z( x3 n; G9 d
NULL,0 ]$ f- l% V. I, @; \# y+ k
&ei, : L/ n* ]% q* m) V &uiErr); % d' A* f) c& \) J- E$ m' D, F- H* s( ]0 @5 o h4 ~
SysFreeString(topicStr); / S$ e2 s+ F6 W8 v" S4 B' O SysFreeString(itemStr);- V: p7 S5 L4 c7 j3 A
SysFreeString(valueStr);) N2 [8 ]! M: c; l
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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??? # ~' ~ E# J- v* |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???? " X+ c/ r8 z9 p4 h # a3 k. K" a- S" A : |( K, |* L9 R; ^2 |% C6 g6 ]2.这是request的程序 4 @5 f( J0 u# I// Request a value from Extend $ W' m. w8 h f `//8 \. d5 z* l4 Y+ B
// Initialize the variant that will hold the BSTR. Set the variant's+ d) b; o6 m" h
// type flag to indicate the fact that this variant holds a BSTR. Place the : p' e0 F- O' E& ?% J( Q// BSTR into the variant structure.0 E; w* P. |6 ?
% A. n: i) m) Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, {& r7 v" z' m) }' b" V
0 G0 `' r5 j' M) g5 M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" y. a/ ?6 Y+ P* C4 b% V7 z
VariantInit(&requestVariant[0]); 4 q J% k: X$ ^$ J
requestVariant[0].vt = VT_BSTR;8 B+ L, z7 |% N( i3 w# V
requestVariant[0].bstrVal = itemStr; 9 e9 D2 |& ^! M5 n% E. U4 g' m' T# z) d
topicStr = SysAllocString((WCHAR *) L"system");8 _4 q$ }# k5 K ~
VariantInit(&requestVariant[1]); 6 p; @' j" _1 H requestVariant[1].vt = VT_BSTR; 4 z4 I5 _3 z" _& Q6 t3 Q requestVariant[1].bstrVal = topicStr;" h* |7 ]* x' [+ K. R
+ Z3 x& E: U$ f; Y; W7 F// Set the DISPPARAMS structure that holds the variant.0 E/ z# N- ^ `) P! J4 I7 d3 X
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dp2.rgvarg = requestVariant; - i8 g: Y3 |5 O dp2.cArgs = 2; & Q3 r/ \3 n. M$ H6 h l. Q dp2.rgdispidNamedArgs = NULL;) o- \" L( K. E1 s q8 t3 ~
dp2.cNamedArgs = 0; 4 C* H6 a8 `3 E: z( Q8 n' m, j, ?: V: k1 i+ |' w( c5 [( Y q# X
var.vt = VT_EMPTY;4 Y6 y0 n) O+ L
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// Call IDispatch::Invoke()4 o& M+ i" M! `
. `; G& D1 i; T$ g hr = m_pDisp->Invoke(% c/ c* _; d2 e* Q9 t* q( E
requestID, * i& q N5 `9 J IID_NULL,8 L+ w2 I: o% s. U
LOCALE_SYSTEM_DEFAULT, & T( F+ L. ~% M7 w) | DISPATCH_METHOD, ; W" v+ K7 o7 ?' } &dp2, 0 E* A" d4 }2 X( T2 p/ K3 x &var, & H0 G. U, o. h9 ]& C7 h, l &ei,6 a4 y2 x6 v6 P# i8 P% v
&uiErr);0 }$ E+ m7 E' x3 S5 i3 H
6 S( N0 n. q8 }7 i( L SysFreeString(topicStr); * J. u1 @7 O- M8 [. g3 F/ K4 d) [ SysFreeString(itemStr);+ w" Z$ n. B& w
请问该程序是获得extend里面的哪个值? 2 l8 l" q# E: 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????