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: ; C2 i( U0 N& _$ \" GName = (WCHAR *) L"Poke"; ( v% q* v7 C/ p0 J2 r9 X0 D % J: f9 ?6 ?* p
hr = m_pDisp->GetIDsOfNames ( . H ?7 E9 r7 o IID_NULL, // reserved " P0 J/ o7 d2 `- S+ ?. r &Name, // Array of names to get IDs for 4 [* f4 ]4 C, Z. z+ p9 G 1, // # of names in the array # F: o# P H: i9 d LOCALE_SYSTEM_DEFAULT, // System locale) t6 h7 g: q; o. Z
&pokeID); // Array of IDs to fill on output 6 I' B/ t) |: G ~ & u. k1 g5 T* O" Q& p% P: N if (hr)" R8 v$ C3 i, Z' O( F6 t
{/ e# Q$ j6 y( |4 j
MessageBox ("Get Poke Unsuccessful"); 7 v$ J& F ~% o6 ^* ^$ j return;7 i d: u; r, S, e7 g& y
}% \: P: H/ d( r8 n' F+ a6 [0 C, d
( [5 ]1 o* m4 D' [0 R
/**************************传递数据给extend**************************************/, }1 K$ Z( A) k; z# \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( G5 n4 T0 W) P- g+ { ; D3 `6 A8 F; s0 C/ d, i valueStr = SysAllocString((WCHAR *) L"1232"); * e8 J1 N% M5 [; ] VariantInit(&pokeVariant[0]); J M' ?" }$ z9 t$ p
pokeVariant[0].vt = VT_BSTR; 8 J W! v$ V" J3 `; D pokeVariant[0].bstrVal = valueStr;" l/ a" O+ I; d( D7 _( \& u* S
" j1 w1 M; R9 }& Q7 n) K7 z2 f9 t F8 K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' u4 _! B2 O3 Q% m0 K& f# n VariantInit(&pokeVariant[1]); ) A3 p) p. g2 k( @ pokeVariant[1].vt = VT_BSTR; 9 l* t3 @8 y8 h$ ]" M' e0 m pokeVariant[1].bstrVal = itemStr; 0 }3 ]7 D/ p. Y5 l ) ^6 g; w$ Y1 G( D* c5 \* ~ topicStr = SysAllocString((WCHAR *) L"system");2 U, b+ b; \& h/ |0 E- f5 M7 O% j
VariantInit(&pokeVariant[2]); 4 `: F% @ t% u* T
pokeVariant[2].vt = VT_BSTR; . G, W' d5 ^$ C1 }% Z% J1 d pokeVariant[2].bstrVal = topicStr; . y9 S/ J; t% ]! u1 B9 y # E; Y \) j& s* D# ]% U// Set the DISPPARAMS structure that holds the variant.5 i W7 ]) Z8 V' A) b, R$ g
p+ e7 X/ L6 N5 i+ Q7 L
dp.rgvarg = pokeVariant;8 R( |' _8 Z/ x' P# o/ f
dp.cArgs = 3; + g: E5 [: r& N% f' N4 ~6 @( K dp.rgdispidNamedArgs = NULL; O9 \- v7 n: p. n6 R/ H
dp.cNamedArgs = 0; ) n% h) l/ ?3 E) ~& @6 d( s& s, t5 o2 q6 _7 f9 e
// Call IDispatch::Invoke()" `! l0 c# D: d, X8 V
0 d8 P* T, X, v3 L hr = m_pDisp->Invoke(5 G/ F- Y0 r9 m+ S
pokeID,5 ^- V. l/ b" m" g
IID_NULL, % o. K* H! S0 N LOCALE_SYSTEM_DEFAULT, 8 ~, U; `4 D. C9 v* l9 X DISPATCH_METHOD,. K% C( ?4 W5 S; X1 m1 [7 |
&dp,0 Y' N# _1 Q/ G' K& h$ k3 h$ p
NULL,0 T9 p8 i0 D: ?9 v" H L5 z
&ei,3 d+ @1 y( h; u" @" D) h
&uiErr); 2 z( C: i- g2 d; R* S- @- b6 ~* x. M% Y' _
SysFreeString(topicStr); 3 j& j5 T' w+ y+ H, t; [5 W9 W& U SysFreeString(itemStr);6 F0 w: u% O; T" b( `
SysFreeString(valueStr);1 D' k0 q" }% E: s) n! m0 d
+ d: z& W* B6 J' O& f* e* A
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???9 o4 [) j0 B0 n1 H X
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???? J" k/ b T7 ^. Q4 J4 c
" u) e' z X! A, A* M B$ s2 F5 y, A, d& j2.这是request的程序+ N# V. v! f9 g [
// Request a value from Extend! @+ _8 H. [& ? x" g# b
//9 C( E' L& ^5 P. }" U9 I
// Initialize the variant that will hold the BSTR. Set the variant's+ } _+ O! O, T& b- z
// type flag to indicate the fact that this variant holds a BSTR. Place the ' _: `8 e" E! y( D" @" \+ `// BSTR into the variant structure. ( ?$ c5 i1 o2 u6 b! c2 f9 n 6 j4 L1 b! S4 M ~5 B5 _ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: g/ X) z0 n) m
" Y: i% ~6 v4 G3 `# | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - E# T9 p' H i6 |* p0 E VariantInit(&requestVariant[0]); 0 m+ |. X8 V& g/ c
requestVariant[0].vt = VT_BSTR;8 \1 p+ m7 e) {# |9 `( x& \
requestVariant[0].bstrVal = itemStr;: T! X# i8 s/ T( N# F3 Q% @# P+ T
) n/ v1 [, S; l+ c
topicStr = SysAllocString((WCHAR *) L"system");( _/ C8 {! P r7 X* m
VariantInit(&requestVariant[1]); : v, M! A7 b4 d requestVariant[1].vt = VT_BSTR;! C( T* Y" |1 m9 T" y" A
requestVariant[1].bstrVal = topicStr; $ I9 l; s/ |; k, l% O. E# J% u2 s0 A" W" d0 o! h/ e& a
// Set the DISPPARAMS structure that holds the variant.7 n* }. D O) ]7 q' \0 j
8 t0 c3 r( A& q& q/ o dp2.rgvarg = requestVariant;' Q9 ^1 o, m) ?' @2 d
dp2.cArgs = 2; $ \4 }% a) L+ R# b. g$ y0 y9 j dp2.rgdispidNamedArgs = NULL;" M! a4 o. {0 [! E/ W% V; c3 t
dp2.cNamedArgs = 0; 1 W) m$ S; I& v# J4 G& c7 Z2 e0 I6 p2 t" y6 H; p' A; d9 v
var.vt = VT_EMPTY;) x3 g: T; }& H( @/ h& S- H' d
4 _% c5 v2 T% H6 r& r; e
// Call IDispatch::Invoke() ! h; B. S4 Z( l3 N$ L, \, `! s$ Q8 {/ D8 _4 V$ a) @
hr = m_pDisp->Invoke( " }, a% K" u: v8 L" j requestID," o# Z. T( p( r
IID_NULL,' v- e( y4 N0 v
LOCALE_SYSTEM_DEFAULT, 0 A- Q, j, p+ B* {& j DISPATCH_METHOD,2 K* c# ?! q% J' ]" d
&dp2, , q$ J+ _( ]+ {% \9 e6 ?3 J &var,( f7 m7 ~% ]8 N2 {
&ei, # M0 T l$ z! {' j$ C: w &uiErr); X8 ^0 O: q, O- _% c: j, R" d; w7 K1 b6 F
SysFreeString(topicStr); " p1 Q. ~, }7 x! O SysFreeString(itemStr);0 [+ C7 Y% b- p# D1 ^$ a
请问该程序是获得extend里面的哪个值?, _+ t" v" n; H1 l! l7 H2 d
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????