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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：
$ }" V0 b; [2 {8 G) B! WName = (WCHAR *) L"Poke";) v2 O* ]& ^ U* Y+ o7 {. ?! o8 A; x
, W& r: S% G9 u* m hr = m_pDisp->GetIDsOfNames (
) T N. W R U! i3 o. a- S IID_NULL, // reserved
* ]. A3 Q& h# c6 D+ Z &Name, // Array of names to get IDs for
! _$ C) R! [6 \4 ?/ `" q3 p& I! M 1, // # of names in the array6 s, e; O6 P) F' O, `1 a
LOCALE_SYSTEM_DEFAULT, // System locale
3 u. G9 H/ d# ]. A! h &pokeID); // Array of IDs to fill on output
! S, B9 S8 f, J1 j# c
: U' x! M# y- _& J- x/ Z if (hr)
. F6 M# L3 z- u- Q {! ~+ N( J; `8 g0 k. L) {
MessageBox ("Get Poke Unsuccessful");6 X9 Q& |2 v9 I" d4 I Z
return;
, v* j0 J3 n, l, U, ?& c) y% t" E0 J }
3 j" F8 K V5 z1 T( A2 i
u- G. o( r% E8 e7 m' o/**************************传递数据给extend**************************************/
6 m4 A5 i% C8 H) C# l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
# \$ b4 Y0 b: R* Y
8 C# y% f( J4 v valueStr = SysAllocString((WCHAR *) L"1232");1 W4 L. f7 k5 V* c) _
VariantInit(&pokeVariant[0]); * h: O. J) [5 a7 R+ L7 J' W
pokeVariant[0].vt = VT_BSTR;9 w9 ?$ H+ O9 C) a- ^) w9 p$ h
pokeVariant[0].bstrVal = valueStr;
. h$ E& ^3 ^' l( ?7 b' @# T' ]) k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); @0 u* @6 z. W/ F }; L/ O
VariantInit(&pokeVariant[1]); ' c$ U$ B5 d4 \' `6 l& v1 Q3 ?
pokeVariant[1].vt = VT_BSTR;
8 d: x. o* U3 _% L2 Q pokeVariant[1].bstrVal = itemStr;
% _" M: h4 H0 k
7 S2 b% e' f; L7 \& A6 g7 E topicStr = SysAllocString((WCHAR *) L"system");
/ t, C0 U# a/ z* q VariantInit(&pokeVariant[2]); 9 m0 k) \+ {: L4 U" {1 J
pokeVariant[2].vt = VT_BSTR;
0 H: P+ q& X8 x0 Y' {, I# [3 F pokeVariant[2].bstrVal = topicStr;
* F& [# [9 G2 J3 p9 F6 T7 P6 N: _2 i$ y. U9 i/ ?
// Set the DISPPARAMS structure that holds the variant.8 R0 P+ m: z% N/ d& S* x
% p- a. g: K; t: w$ V, C dp.rgvarg = pokeVariant;/ N4 F X. m) I& W8 {* h
dp.cArgs = 3;
4 I) Y( p, c5 i; R4 C dp.rgdispidNamedArgs = NULL;
# v! L: H' ?: N& g+ Q dp.cNamedArgs = 0;9 f0 A$ c. ~: z8 R
Y. k* a( h7 @// Call IDispatch::Invoke()3 n# ^! j4 K4 S" N0 Q- p
- F# u1 g, K% Y
hr = m_pDisp->Invoke(
9 f& W) J) C. x( l, p- { pokeID,8 B2 r2 J4 G; t/ ^, a6 B* M
IID_NULL,: @5 K6 P8 A& u/ s
LOCALE_SYSTEM_DEFAULT,
7 V$ Z Z: i5 l! l* W: o- a6 I DISPATCH_METHOD,1 m, [4 k) B2 \' W! h- _
&dp,. s: l8 x7 F& w/ K
NULL,' a( _0 m3 ?9 d A0 o1 c
&ei,
1 G4 s' A- h/ p" x7 C1 a9 |& y &uiErr);: O% \$ O9 g% I+ }( A
3 x9 k/ T$ r- Y; e SysFreeString(topicStr);# M; q; I5 y, K3 [& `0 L
SysFreeString(itemStr);
9 W0 n6 ]: D7 `8 ] SysFreeString(valueStr);0 d b9 P6 n# q
0 y/ Q. A* G; a9 ~& f
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？？？
( K" @& Q3 S$ b# j4 b' m6 [% ?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？？？？
) O6 ~+ G( d( [( F P' e2 U0 O2 T3 V3 F2 @! ]: [
, z) f; u4 M) {& A2.这是request的程序
- X5 b8 I! w( M* a9 A// Request a value from Extend
# @$ p2 n' k2 A1 B! h//0 i2 g: l' y! R2 K' X
// Initialize the variant that will hold the BSTR. Set the variant's
/ E" n" [* i( s& o$ u// type flag to indicate the fact that this variant holds a BSTR. Place the
8 u* _0 W+ j' ?( ~$ X" }1 B// BSTR into the variant structure.
9 ~$ x( D4 G* r+ r# U' k$ z: c" I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
0 ] X% F% ]2 i, E2 L! n 4 d: M0 F9 v% V' |9 J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ M6 d& l2 w P/ G! ]# P2 |
VariantInit(&requestVariant[0]);
H! O! I9 q9 B: s requestVariant[0].vt = VT_BSTR;: q$ |* D, t; }
requestVariant[0].bstrVal = itemStr;1 W6 C) u6 [8 _
9 @+ ], Y c/ [; W. W+ i
topicStr = SysAllocString((WCHAR *) L"system");
* h$ p, z- }9 m0 M2 Y VariantInit(&requestVariant[1]);
$ N& r3 X/ H, M3 x( } requestVariant[1].vt = VT_BSTR;# Y8 C: L3 t7 b$ L4 y- L
requestVariant[1].bstrVal = topicStr;7 B( t, t3 \; }5 K
) W& R: l+ }2 M( Z0 _0 _$ G
// Set the DISPPARAMS structure that holds the variant.
; ^3 n6 v3 D8 `" G6 H
1 m6 O+ m4 g. s+ I$ `9 E dp2.rgvarg = requestVariant;
+ f) c, f: M, B* }2 |: r dp2.cArgs = 2;
4 x9 c/ I, m; S+ A5 K' `7 | dp2.rgdispidNamedArgs = NULL;0 R9 z4 F7 q" N
dp2.cNamedArgs = 0;: y r' S |9 Z+ _0 @) z
- _; B% ?" U, s
var.vt = VT_EMPTY;
* }, K4 I% y0 s( ^
S: t* C4 a6 b" S! i' z// Call IDispatch::Invoke()2 f/ D! M, C5 M
9 I" L6 w, }. K. B hr = m_pDisp->Invoke(
+ t5 Y$ w; [& }2 C& I requestID,
( K1 S( _4 v. r% g! S) f/ [ IID_NULL,
3 y, Y# Q3 }, c+ R LOCALE_SYSTEM_DEFAULT,
8 I- x8 o* r. P) \) I DISPATCH_METHOD,' J, ~. h" F4 {& g5 d6 Y+ G
&dp2,2 Y" C5 H1 H& C& c. H
&var,. w! E6 q, R) z2 a/ M1 H9 c7 d% {2 K( j2 _
&ei,
4 {5 I! X% p, S0 F &uiErr);
% P% J4 n3 K- c9 g; b+ p) X _- Q- U6 n( T9 P" G0 i
SysFreeString(topicStr);0 W, X9 g( }, ^, ]
SysFreeString(itemStr);
3 c0 K5 r, }! Q' m1 @: n+ V请问该程序是获得extend里面的哪个值？
% }7 @ h4 R- D2 N5 Q/ C: S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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发表于 2008-11-25 19:37:03
