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5仿真币
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 y( m0 e! c3 S. X" C) j0 I3 NName = (WCHAR *) L"Poke";8 x9 \3 ~/ g+ {1 k
8 W+ }2 s0 s# X6 P; H7 I
hr = m_pDisp->GetIDsOfNames (
9 g3 ?. A/ z& @5 R4 n# w5 i IID_NULL, // reserved+ z+ Y: g5 Z4 N$ P0 n7 I0 T: G! X
&Name, // Array of names to get IDs for
8 H1 L6 t1 ]& V+ m# U6 {1 u 1, // # of names in the array! u3 ] z( H/ Y% Y! F5 A
LOCALE_SYSTEM_DEFAULT, // System locale
" x' e( q+ w& r f8 k &pokeID); // Array of IDs to fill on output B* }! A, O# T: B3 F4 u, [6 B
5 x2 I* m: k8 i, h5 H
if (hr)
% @6 Y( R8 [1 r, g2 M7 @ {& Y2 J( W6 s1 s8 L u$ }4 z Q
MessageBox ("Get Poke Unsuccessful");
; ]( i0 g+ N0 w4 Z7 m return;
# J9 ^9 {! @6 n/ D }# _0 d7 b! y( Y
8 w6 A& [+ s" x x
/**************************传递数据给extend**************************************/
5 s1 D/ O9 F, t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. ]: l2 m. X( B+ e7 j1 s1 g$ {) W& y
8 ?) b) K: Q6 k valueStr = SysAllocString((WCHAR *) L"1232");
, `9 @( u' x3 p4 a VariantInit(&pokeVariant[0]); ' R3 @& g( U3 P( F' h. e
pokeVariant[0].vt = VT_BSTR;. p1 R0 u5 v8 v4 v
pokeVariant[0].bstrVal = valueStr;) E$ {, q% M5 E
7 f+ I. L* ~: h) {1 x& c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 p2 w# d1 G$ m
VariantInit(&pokeVariant[1]); 8 P/ S9 f; `9 t$ \1 l
pokeVariant[1].vt = VT_BSTR;
: P, F; e- g+ F+ K% T, U1 S pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
+ F$ {, b# y) k9 c1 Y VariantInit(&pokeVariant[2]); % t! k- @6 i n3 X( S+ j7 M8 H- L
pokeVariant[2].vt = VT_BSTR;
* H0 y p3 u2 W ] pokeVariant[2].bstrVal = topicStr;
7 q( I$ M! B' F/ I3 I' |! g
% l& g) W5 T! p& f// Set the DISPPARAMS structure that holds the variant.
3 }( W. |" d v+ y& Y; w+ i9 X7 M0 a' R! W) E2 [2 g+ [
dp.rgvarg = pokeVariant;/ `; U( e6 n. w- U1 N/ F* u
dp.cArgs = 3;/ i% U3 G9 N! Q. w6 V2 k" k% i
dp.rgdispidNamedArgs = NULL;; U( u; H9 b4 G0 ?
dp.cNamedArgs = 0;0 G' U4 h9 L' ~; n1 f+ b8 v
9 z0 J) t; j. i; _9 k4 K: [// Call IDispatch::Invoke()
& X# ]( y, \' z2 g7 Y$ i" k5 y: r2 k6 p; S/ X% O1 U) V8 N
hr = m_pDisp->Invoke(
+ ?: C E+ Z/ f8 e" |8 e, W7 M! c, g pokeID,( z* g$ X* j8 d3 l
IID_NULL,3 @/ E" b1 @1 n# A* t% z- `
LOCALE_SYSTEM_DEFAULT,) J" A' h+ A7 g, H
DISPATCH_METHOD,
& u6 p) \8 I! S3 q" E) B" P' _* D5 i &dp," A4 n8 a G0 T; z0 X" `1 y2 C
NULL,8 y/ T# h! a; M
&ei,/ W% f1 \. W: k' J1 O6 v
&uiErr);
g. S9 N* L/ }$ R
) c, w# l) Q/ | SysFreeString(topicStr);9 x `0 J. m$ y+ @/ m V
SysFreeString(itemStr);
* L2 F7 t) F6 H! ^# P. d3 z SysFreeString(valueStr);* T0 Y# {& N; X: f/ M& n3 `
" \ ]2 w+ T% V* Q" R c. 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???
" @8 R0 c, c, J8 ~% [# j+ l% [: C& 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????
9 s3 \& ]8 i: W4 L/ g+ x& @' z& t* i9 F8 N1 n: s
1 @; g) f+ D+ q2.这是request的程序
* D5 k& p: E. g* z// Request a value from Extend7 [- f+ v9 K8 A6 H L! E+ G
//. v* Q6 u. `( B+ L8 D
// Initialize the variant that will hold the BSTR. Set the variant's
7 }- ?3 k& j- E6 }& `& [// type flag to indicate the fact that this variant holds a BSTR. Place the4 W/ l8 A4 C2 s
// BSTR into the variant structure.
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% ~; U7 W6 p6 n& n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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7 ^* }5 w3 z3 P q# L2 @9 Z* U$ p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- [. b4 a" G/ d$ u0 [
VariantInit(&requestVariant[0]);
3 x8 N+ Y0 Y7 h% j* ` requestVariant[0].vt = VT_BSTR;
. f5 z' f2 x" p: X( U requestVariant[0].bstrVal = itemStr;
/ p% y v4 j! q/ V5 T' u8 l# C3 q; s$ h) x& [9 O8 E& i" s
topicStr = SysAllocString((WCHAR *) L"system");* W/ m6 s1 k" Y4 F6 {+ c+ L
VariantInit(&requestVariant[1]); 9 l! `$ }4 g0 z9 o# I, e
requestVariant[1].vt = VT_BSTR;+ O0 X; U( }; a+ P2 t* q
requestVariant[1].bstrVal = topicStr;
T5 @3 k9 \4 k" ~: A; G7 m3 a
, M/ O2 N) u$ \5 a' o) z- p// Set the DISPPARAMS structure that holds the variant.
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# L9 o; {- V, ]2 ?( N# n dp2.rgvarg = requestVariant;1 }) w" @9 U! s6 c8 e! N" j9 b, Y- L
dp2.cArgs = 2;6 Q# d Z+ q/ [% y( f
dp2.rgdispidNamedArgs = NULL;/ O& U0 ]7 G) y3 [4 k7 s
dp2.cNamedArgs = 0;6 \. v3 f! v5 C" A* t- m
6 c: X6 t, g# s) J1 S1 R var.vt = VT_EMPTY;
" U, v' F+ o! `8 w
+ C c1 L) h: P' y( J// Call IDispatch::Invoke()
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2 U+ p1 V3 Z. ^5 ?# T0 r7 { hr = m_pDisp->Invoke(
* r* F" u E; B4 _ requestID,
0 l. ], I( A! a, q( z5 ~& g4 @# F IID_NULL,! m- F& f& L9 b4 s* o& B0 c" t1 `
LOCALE_SYSTEM_DEFAULT,' `4 ~" ^; H0 B, E3 l( i9 r- V. l) A
DISPATCH_METHOD,
% f1 q5 J* z6 Q4 N5 j0 X &dp2,; s6 P) ~- A6 c. C- y' _
&var,
1 ~2 ~% @: k* x( g &ei,
6 O" r% W* d: ] &uiErr);* e# T; W) f, t! P. T$ p( i. @7 W7 E
' A, n- }4 u$ U! _" _ SysFreeString(topicStr);8 x' H8 [8 M q. y
SysFreeString(itemStr);: W8 l/ Q: t1 X+ C \( ~4 N
请问该程序是获得extend里面的哪个值?
5 p1 E% J$ E! X2 |% G: h" E: H! ]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???? |
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