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: 1 z( M" w0 [0 x4 t% O5 u& L. TName = (WCHAR *) L"Poke";: G) i" a' @. a+ h
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hr = m_pDisp->GetIDsOfNames (0 D9 a, i7 D$ A
IID_NULL, // reserved / u; w( r, e* I: f0 a, p+ w &Name, // Array of names to get IDs for % a/ D. r7 U& G1 M' Q 1, // # of names in the array) @0 N% J) C! O8 a" r+ O @* Y( |8 P5 N% j
LOCALE_SYSTEM_DEFAULT, // System locale ( \" V. E6 ~/ h% O: ` &pokeID); // Array of IDs to fill on output 0 K" E; y) e1 U6 `; V8 g. Z6 D1 [ - F d2 G/ X( p0 k8 Q& e/ {4 J if (hr) 1 z0 K( C+ J* d) t' W2 s( I8 P { ' |* [8 X5 O! x. G4 M( S/ w" L MessageBox ("Get Poke Unsuccessful"); 5 O" ]+ w2 `: U* @( i# z8 g return; 0 n& {2 K4 @3 O$ y3 N+ \ }& z- `2 s7 s% Y
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/**************************传递数据给extend**************************************/( [6 F; M& }/ v' W) j, q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 S3 `/ _: C+ J% c0 \: \ 3 S3 r2 q. p8 D# c ^ valueStr = SysAllocString((WCHAR *) L"1232"); # c- Z9 I( C% L3 g6 u VariantInit(&pokeVariant[0]); 6 d% H$ _8 g* v6 F
pokeVariant[0].vt = VT_BSTR;# i* H6 K, P! a
pokeVariant[0].bstrVal = valueStr;& F7 G1 h# W, F: ^4 I
+ |) ]5 x+ R% j8 h8 d8 V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% x/ n* B p7 U% P$ g6 ?! \) Q
VariantInit(&pokeVariant[1]); 3 L, m- E0 W, ]
pokeVariant[1].vt = VT_BSTR;5 @8 q V0 k0 ^+ s4 A
pokeVariant[1].bstrVal = itemStr; ' [, w( Y, |3 P" x3 E8 Z* v / b: k0 s4 C! u! M) B! ` topicStr = SysAllocString((WCHAR *) L"system"); * e0 k. g3 G0 K7 S1 Y/ k VariantInit(&pokeVariant[2]); 6 v6 U# l v& y, r3 K9 s
pokeVariant[2].vt = VT_BSTR; , u2 C! f1 u/ | pokeVariant[2].bstrVal = topicStr; ; d# @; D5 u$ e9 c7 _4 k/ r E2 X+ [5 d# v$ P1 ]0 h// Set the DISPPARAMS structure that holds the variant. 9 c$ R5 S- o) R; {; N @) Q$ R/ z: q& o4 g7 v dp.rgvarg = pokeVariant;* x- p9 _) U5 w9 o0 l7 T
dp.cArgs = 3; $ M2 D' G7 U. J6 [* v$ U: b+ @: a dp.rgdispidNamedArgs = NULL; 6 @) L1 Q6 H0 \3 b dp.cNamedArgs = 0;4 d/ M+ Q8 s. z9 B; x7 h1 r w
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// Call IDispatch::Invoke() ( h6 f9 T/ M3 K1 e* @$ Z# L" n% A2 A! H5 |7 ?: a* k" U* n& F# S
hr = m_pDisp->Invoke(7 D) D* o2 B0 [9 A( N2 e; Q- y% r1 B
pokeID,' G3 L5 P+ P) q& D1 n# k
IID_NULL,) f0 ^$ P0 |, w- M4 y' C
LOCALE_SYSTEM_DEFAULT,/ M$ V+ J# A+ |3 w* D' Y
DISPATCH_METHOD,: F0 Z5 G% y6 f( Q; q: g9 P1 [4 J
&dp, 8 D% I% _" p. i! c( Y NULL,& ~/ k( G l$ Q9 I& j6 s& d. w
&ei,6 |" e: j2 ?2 L/ v2 `; ~0 \
&uiErr);$ u3 ]8 N; K# P4 O6 w4 w
8 h Y; ]% T& G* E1 z2 C6 K. c SysFreeString(topicStr);% k9 c+ k$ H3 l& P f7 v( z
SysFreeString(itemStr);* G) i% k. i$ l1 [' J7 k
SysFreeString(valueStr); $ `: j2 A8 B V* q7 D, u: K& b0 W# 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??? / E2 F" _9 d- ^# Q; v ]# F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????; R: W- q2 [+ u6 \' ~, P+ [
5 X0 p9 }/ u! N. }1 p 9 D" @. x' k3 a8 u7 Y/ |* ~2.这是request的程序( K. B2 Z" L3 ?$ i) i1 N I: l
// Request a value from Extend+ j! g; |% N/ X
// / a' y$ A( M* o0 D' y// Initialize the variant that will hold the BSTR. Set the variant's5 C+ a+ `6 n' ? [
// type flag to indicate the fact that this variant holds a BSTR. Place the& X5 u! d# Q7 g( L
// BSTR into the variant structure. ; l' v4 S$ x/ m( V6 k# a+ Y$ J ) b! @# E: q$ ]: l$ F: _ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 S$ Y! w! c- X2 ]$ C* S3 G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " f2 I( E- ]' w VariantInit(&requestVariant[0]); ' ?0 F4 ]9 w( ]( \) @- W
requestVariant[0].vt = VT_BSTR;$ @$ u$ \" K& E# b, e
requestVariant[0].bstrVal = itemStr;2 [- ^* A1 r1 u: e5 l. k
) m7 d4 `) E) w& @. B topicStr = SysAllocString((WCHAR *) L"system");% M' Z, [+ j& T' s
VariantInit(&requestVariant[1]); + h. h4 Z2 K7 e2 w
requestVariant[1].vt = VT_BSTR; 6 b% h& b. g" r* K5 n. t4 a requestVariant[1].bstrVal = topicStr;2 b& w; m- a( t9 A
+ W7 m) `, |- x$ c; E9 f! q// Set the DISPPARAMS structure that holds the variant./ i2 }, L7 R, ]5 N
7 m$ f5 p# X$ P$ t dp2.rgvarg = requestVariant;6 o: T' m0 K2 M
dp2.cArgs = 2;9 r# [7 s) R% @. A# g
dp2.rgdispidNamedArgs = NULL; # ^, o z* t8 A: u/ q" T4 @& ] dp2.cNamedArgs = 0; ; W1 x7 m1 {- e" ]; J8 t8 {. F, l d& z* E: y, M) F
var.vt = VT_EMPTY; ! n c9 W. C, P$ s- T8 C, |4 ^4 l' x: z/ m
// Call IDispatch::Invoke()' ]: @# f3 J0 G
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hr = m_pDisp->Invoke(( H l# C3 Q6 k& `# z
requestID, " k9 D% P- d1 x) c6 H" v7 w* m IID_NULL, & V3 B9 W0 {$ F" R- e2 m4 q LOCALE_SYSTEM_DEFAULT,* ^3 F7 g; h$ @+ ~+ H3 O
DISPATCH_METHOD,/ K8 q+ t6 G/ c% t$ m# l1 {8 V
&dp2,4 `8 X6 b& j9 _' d2 F. h) E/ K, R
&var, 4 x% P0 J6 e, o- B$ K) r &ei,+ v" _0 {+ S* u2 k9 V" K
&uiErr); ' M1 O! V5 N T& F+ Z 5 y- k" L) K4 y' I- { SysFreeString(topicStr); 6 R% y0 z, Z9 b2 y( h SysFreeString(itemStr); 8 _& r9 \/ @) P* Y* x q. }请问该程序是获得extend里面的哪个值?) I$ a2 G, F* @: k& V
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????