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, _+ q7 d) N4 R9 s ~
Name = (WCHAR *) L"Poke";2 `+ g% f. L& `( P2 ], @
; v* L3 X4 x& U) Y; ^( o+ ] hr = m_pDisp->GetIDsOfNames ( , L. a R8 p3 H; A! N3 P IID_NULL, // reserved5 A+ ]! C( s' \1 q0 |
&Name, // Array of names to get IDs for# `# `4 l0 |. h4 T
1, // # of names in the array, ~1 t- }! ^, a& a
LOCALE_SYSTEM_DEFAULT, // System locale2 S$ g$ L8 y9 {
&pokeID); // Array of IDs to fill on output: G6 U& k! c8 W ~! u6 y( q
" _5 i) E* g- j0 _ o if (hr): G/ c: o. G$ T/ L! l
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MessageBox ("Get Poke Unsuccessful");4 N, j0 V2 ^' u6 \* p) v9 d2 Q* m3 I
return;% ~' M) k5 D. q8 u6 J" r6 p
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/**************************传递数据给extend**************************************/, O( d$ C" w6 `" V7 e) A" D8 }8 q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 f7 S9 Z$ D; `2 Q9 Q 0 ?4 u% s* y l e+ I+ n
valueStr = SysAllocString((WCHAR *) L"1232");. T; a% ]" g+ p6 _/ [
VariantInit(&pokeVariant[0]); - Y/ I# w2 j& K! M' M/ U( w: B pokeVariant[0].vt = VT_BSTR;8 k7 j8 j/ e. {/ D6 U% W/ |
pokeVariant[0].bstrVal = valueStr;) p( _: P- f+ H; E. m( c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 u; A1 o# j3 `5 M- a2 h VariantInit(&pokeVariant[1]); + u* l. X0 S$ Z+ P
pokeVariant[1].vt = VT_BSTR; 8 x/ l' [2 T1 ]' b" n pokeVariant[1].bstrVal = itemStr;$ M$ a( `8 z, H1 D
4 t( t3 \1 J/ X topicStr = SysAllocString((WCHAR *) L"system");* [& l$ z" R& @* f, t" k: K
VariantInit(&pokeVariant[2]); # C; { O) Q z& t% x4 Z4 w
pokeVariant[2].vt = VT_BSTR;# ?6 R- r8 ~, s, ^( J
pokeVariant[2].bstrVal = topicStr;& V- M4 o' B! u t0 \1 r) ^2 v
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// Set the DISPPARAMS structure that holds the variant. 6 R0 G0 \1 Y$ u3 u% f# n. _* R$ T' k# j5 \& h. H6 m' Q( Z
dp.rgvarg = pokeVariant;: m% @1 ]; Y. a- i! w
dp.cArgs = 3;# W; p8 x1 l" Y5 V# R& h* Z
dp.rgdispidNamedArgs = NULL; 8 L; i- w+ [' q$ _1 \ dp.cNamedArgs = 0; 3 @" ~! `" }$ y( E% H9 }# O ( i9 u5 ~" z& Y$ N+ |; L// Call IDispatch::Invoke() $ }. s1 u7 x8 J) R9 r 1 j2 E5 p; l2 P a+ s hr = m_pDisp->Invoke( 6 M- Y0 y: E, w/ u+ F( S pokeID, * B7 [# t0 R" }( g- F. p' a IID_NULL,/ g* o& W5 b0 V+ q% C$ J( P5 t: p7 p
LOCALE_SYSTEM_DEFAULT, 4 @/ q' @3 [: {% A DISPATCH_METHOD, 5 j5 ^( p& I- H8 n" h1 I! u &dp,. ]: h9 f$ d# }) s
NULL,$ R* V$ L7 R* e% M8 Q; o4 X# R
&ei,# x3 E5 U2 X$ N. B; z1 n
&uiErr); 0 j4 I X, w" U$ |+ b) m& s0 r' h# X7 r4 D' }. u
SysFreeString(topicStr); 4 L6 j% [ Z3 m5 Q' i+ Q SysFreeString(itemStr);* K4 `3 t: a) R, x7 _$ R. a
SysFreeString(valueStr);/ ^8 u2 \' L7 C; Y. [/ k
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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???0 i/ G# F P- h! ~
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????8 I3 a" z" d/ G1 p3 Z8 E
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2.这是request的程序, k. F0 J& _9 Z- ]
// Request a value from Extend $ M. A" v; L/ I+ o, B6 q// : T1 `+ o. `& q9 {0 i; y4 C/ k// Initialize the variant that will hold the BSTR. Set the variant's % U+ o" T0 S1 g* y4 U: J// type flag to indicate the fact that this variant holds a BSTR. Place the$ J- K1 q- C M3 R7 G$ |) s
// BSTR into the variant structure. * \ ]" A/ ^- x8 I$ V5 e# U+ `& n6 M 2 U7 u8 j8 T0 t) j. }# z1 Q2 _% t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 r9 [# q1 `+ I9 y0 [5 J5 m- h, Z ( _& C+ K0 v3 Q. a& S( t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 k7 ]* M) j( e g- ^ VariantInit(&requestVariant[0]); * u- [) L* P- z$ B) L requestVariant[0].vt = VT_BSTR; 4 W3 v( p- C( n requestVariant[0].bstrVal = itemStr; 2 q8 N4 x8 @; M- _2 t$ e4 d& @: m( x5 t( w! u0 V! _6 ?5 {7 U
topicStr = SysAllocString((WCHAR *) L"system"); 7 }( E" {. m! b* p9 o ]; w. j VariantInit(&requestVariant[1]); $ Q# E" x4 A! }& J/ \9 {
requestVariant[1].vt = VT_BSTR; ) n6 i% d4 y x; @) [ requestVariant[1].bstrVal = topicStr; * O$ i; F7 V& ], Y" h: _! Y! S" u- H' E% m: e+ P. e5 c1 f
// Set the DISPPARAMS structure that holds the variant. . C. Z% I& i) O' d : I8 e. G: A* X$ |. @% b dp2.rgvarg = requestVariant; ; H: Z% n+ l/ \( i7 M4 j dp2.cArgs = 2;, d% H4 T! w$ D% S
dp2.rgdispidNamedArgs = NULL; " t2 M5 v& g9 T x9 P0 n dp2.cNamedArgs = 0; + S+ ]4 i8 o; J8 T. v U2 K8 w7 u4 L5 ~6 }4 f5 b: r6 v
var.vt = VT_EMPTY;+ z1 _- w. X }5 j$ ]
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// Call IDispatch::Invoke() ) [. f, q7 {( V0 C: B; t6 W # X2 ?0 J0 b$ W1 E4 G hr = m_pDisp->Invoke(& ^* D8 T/ }, }" j" [$ ~
requestID,; F. m1 |* i- y1 v x! T
IID_NULL, ! _& _% ?7 d5 R/ l+ w& r' d9 Z LOCALE_SYSTEM_DEFAULT, " `, H+ F# m3 {/ z9 k$ i4 f DISPATCH_METHOD,2 \) t% b3 a: `- T- P& Y9 k; L; r
&dp2,! C3 j# y2 X) y% g0 d: n m
&var, , d2 u. R" Z% c# B5 Y! E2 L9 q &ei,) H# @! Y$ P Z- s5 t. C; W. F
&uiErr); 7 s& Q7 D: S" I* m) @4 y& I) P; f! X6 G5 P% _
SysFreeString(topicStr); 4 f) P6 V( J1 s0 C P& u1 N SysFreeString(itemStr);. X$ f- P% \6 j# ?3 G: v" l
请问该程序是获得extend里面的哪个值? 2 P* G g0 k9 u8 \- `- }1 e( G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????