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:8 [) X; B- n' ~0 m
Name = (WCHAR *) L"Poke"; " f x$ e: ]: U & C% ^/ M" ]( g5 |
hr = m_pDisp->GetIDsOfNames (2 o% n4 m; _5 |
IID_NULL, // reserved% m" `" N* X( d" O% x
&Name, // Array of names to get IDs for Y5 P8 F8 u* Q+ _& i% j/ {
1, // # of names in the array " V0 K5 Z0 Z& ~9 S3 f LOCALE_SYSTEM_DEFAULT, // System locale) ~# Z; X0 D) I4 u3 K
&pokeID); // Array of IDs to fill on output & Z" |1 B3 B0 G6 s0 _& j4 y 8 w/ d; w# R. L( N# V
if (hr)( F1 o0 T$ _6 G2 F
{ ( Q) n; o) y L0 n: a9 Y3 H MessageBox ("Get Poke Unsuccessful"); & N4 L5 r% @3 p7 ] return; 2 `+ R1 A0 C4 T7 e5 M }! G3 a9 ?% b5 L* \" g6 G4 ~* ?
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/**************************传递数据给extend**************************************/ 5 e* b! h4 a8 D% C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , G8 ?- T( @* k! z0 c% x& \0 \8 z7 Y : ^; `9 j& ^* f0 k; p
valueStr = SysAllocString((WCHAR *) L"1232");5 W b: B$ R, {% k
VariantInit(&pokeVariant[0]); 1 E% S7 d6 q" \9 g+ m: q pokeVariant[0].vt = VT_BSTR; ; B( o- z- _7 w, S) p/ j pokeVariant[0].bstrVal = valueStr; & @8 C" Y( S- X# c3 y+ o5 [4 k% t. t( {5 i7 a5 `" X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 a* q" r( [* R! ~5 Y9 x8 _: H- | VariantInit(&pokeVariant[1]); . j3 t, A$ p& P8 K pokeVariant[1].vt = VT_BSTR; 3 [. ?" Q% Q# o& f( D( O pokeVariant[1].bstrVal = itemStr; 5 Y, Z' }1 U% p$ K4 [. e; I7 A9 B% Y0 |
topicStr = SysAllocString((WCHAR *) L"system");, D/ H: H# R4 q
VariantInit(&pokeVariant[2]); - B! C7 Q- F/ _
pokeVariant[2].vt = VT_BSTR;! z. q* W8 V2 `; W
pokeVariant[2].bstrVal = topicStr; / c: ^4 D9 j8 F/ n6 {( J " X, A( x# v8 Z2 C d6 \( s( A7 E// Set the DISPPARAMS structure that holds the variant. 0 R5 n- H- \% ^. t+ s( G- u% h: k( [: B% f) h
dp.rgvarg = pokeVariant;3 E" S2 f. S! N: F, j* `! b
dp.cArgs = 3;2 _8 F! K& B" F/ K# Q/ w! l
dp.rgdispidNamedArgs = NULL; ; q# A. z1 G% o dp.cNamedArgs = 0; - i$ z, Q* f# T) O* m1 X 0 X+ U& w* y* O+ S, l6 O& \) G+ k// Call IDispatch::Invoke(); T6 l/ K8 W$ q1 l" ^8 L
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hr = m_pDisp->Invoke( / w/ I) o R! x) \ pokeID,- W/ n& m$ E4 B7 b6 m1 s
IID_NULL, ; t" }# K7 T: n1 k! A1 G b! ] LOCALE_SYSTEM_DEFAULT,# G# J% S" L- M! q; n' m
DISPATCH_METHOD, + R2 p( v) ?+ P& ~# p: L8 ]. Q &dp,. i" E3 x. O6 B( q/ X% o7 a, I
NULL, 9 \$ ^, B/ e/ L &ei, 9 S' \- Z& ^* `: |, x" e- _ &uiErr); 2 y; A5 b, ?2 |- X: Q0 y% m- ~" \7 i& f1 f! I! y3 E& R
SysFreeString(topicStr);, L$ g: y- P4 G T" M% t; p: i0 N; e
SysFreeString(itemStr); I# x- |9 {$ y' v/ i SysFreeString(valueStr);$ R3 D$ N. k9 d$ M
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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???3 W+ f, b: x* F" A% w3 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????. o) M1 X. ]/ H/ ^' g
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# H' h( K' {/ Z r* W- O2.这是request的程序 8 m9 Z) u8 m: o. Q, t7 Z/ x* o// Request a value from Extend 5 o9 P# R z1 g ]+ }//+ k7 v. }& W. C4 o
// Initialize the variant that will hold the BSTR. Set the variant's 8 C: [- P: G( w+ w$ b: Y// type flag to indicate the fact that this variant holds a BSTR. Place the ) y6 G' g4 Q( U7 b// BSTR into the variant structure." s, X3 ?4 k) z. {0 ?
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: S) t0 F. r, w& p/ s
- J" P7 l$ ^+ O5 Y6 A# @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 g) I$ y. Q" S9 I& S9 a VariantInit(&requestVariant[0]); 5 E1 ]5 p/ K+ E: M+ c6 D2 v& a- m' W
requestVariant[0].vt = VT_BSTR; . y. i! ?# e. }+ E/ l requestVariant[0].bstrVal = itemStr; 5 i+ K7 a+ U7 q: X* `( f/ c ) D0 M3 x+ A6 @7 \0 ~* a% [9 s+ { topicStr = SysAllocString((WCHAR *) L"system"); - ~- Y' C2 W$ }3 I VariantInit(&requestVariant[1]); 1 Y6 Z- |" D5 Q8 F0 a4 e* K requestVariant[1].vt = VT_BSTR; ) w: p( L, V1 l9 O requestVariant[1].bstrVal = topicStr;& `* d5 b! k' J& D) ~3 m2 R
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// Set the DISPPARAMS structure that holds the variant. ! y+ R+ _' ~- w0 \ 2 Z p2 N @; p: }& \ dp2.rgvarg = requestVariant;4 f/ U% g& I7 G6 [" y& F
dp2.cArgs = 2;7 P2 j, }8 p" ?* s
dp2.rgdispidNamedArgs = NULL; 7 F/ s y$ Y1 x0 S( a dp2.cNamedArgs = 0; 8 ~6 F- K, x: I) v& E0 E, E$ t& `+ q
var.vt = VT_EMPTY;7 ~ Y2 ^$ I- A( v7 @
6 G. ?9 v+ \4 `$ {// Call IDispatch::Invoke() # _; ?- u+ c2 c4 e6 Y- Q- D, P% O* r' `2 N$ I7 ^
hr = m_pDisp->Invoke( ' W( R# v& a1 |7 [7 | requestID,0 v' y; y4 W4 P) `2 u2 h6 R; z
IID_NULL,+ h9 b' i& U# h1 b1 S- K' n
LOCALE_SYSTEM_DEFAULT, # ^3 e$ ]$ Q1 T( Z/ l. i$ K4 W A6 | DISPATCH_METHOD,' W* j* j% S" e6 J, H
&dp2, * i% f; x2 O6 Z( F' _ &var, ! g9 D% U8 E3 Y* E &ei,) ^8 o1 x; _+ S7 k) y
&uiErr); " T3 o7 _2 j" b' g4 m2 V- T 0 k2 R2 G2 n) g( B! I& C9 A SysFreeString(topicStr); 8 \7 x( b; P6 C; m SysFreeString(itemStr);0 B: a* ], z; D" H b( ]
请问该程序是获得extend里面的哪个值? 4 K4 K6 }9 n3 [8 F3 [# ~7 }9 g4 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????