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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:
" g5 X" z' ~ c. c" L% }Name = (WCHAR *) L"Poke";
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$ h5 Y" y' K" L! Y/ f hr = m_pDisp->GetIDsOfNames (
' E* P: B: S9 _# J0 J5 l2 ^ IID_NULL, // reserved4 I1 X) O8 ]4 V- j% M
&Name, // Array of names to get IDs for
7 d ?+ y! R+ Y0 x 1, // # of names in the array
3 Y- E! s( G; ^& P8 _6 R LOCALE_SYSTEM_DEFAULT, // System locale
9 j- S7 O- f i$ Q; q &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");0 Y0 @( w2 x6 g7 `' `6 `( Z
return;4 f: d+ f. e. {4 l; f- |7 K$ S
}
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, k% s. l- M& y! H8 a/ ~, j0 K7 o5 n, [/**************************传递数据给extend**************************************/9 z0 h% P4 Y! ~) @$ k4 n7 ?: L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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& j+ l* A! B5 x1 ]- _" S0 B6 \ valueStr = SysAllocString((WCHAR *) L"1232");4 q+ Q: @9 G* E* s
VariantInit(&pokeVariant[0]); , ~- Z8 s: t2 N* ~ a
pokeVariant[0].vt = VT_BSTR;
6 C, G6 l8 f2 ~; B8 c8 R3 { pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 S1 T7 N* i6 N/ g: p VariantInit(&pokeVariant[1]); 1 m' t2 J) |, `5 T
pokeVariant[1].vt = VT_BSTR;
) w' v$ G" Z7 i) E. `, _ pokeVariant[1].bstrVal = itemStr;) W8 r c$ ~2 F3 l. P) f$ i
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topicStr = SysAllocString((WCHAR *) L"system");1 P; ?1 L1 e/ s; g8 P+ c) I
VariantInit(&pokeVariant[2]); 7 P3 U/ P' {4 E: d6 \9 v5 m
pokeVariant[2].vt = VT_BSTR;
, }/ B9 W( f# U7 ^7 ] pokeVariant[2].bstrVal = topicStr;" ~# G) |* e H6 ]4 g' g
4 f. ~3 j" n! ~3 N! F// Set the DISPPARAMS structure that holds the variant.
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1 e7 @1 w& @. |3 ]' w dp.rgvarg = pokeVariant;0 x$ }' [6 Q0 f& x" T/ h' `" R
dp.cArgs = 3;3 r+ S" {) q2 I
dp.rgdispidNamedArgs = NULL;
' S9 |" |* Q6 p6 J/ n dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()' q8 A, d; D4 D- n
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hr = m_pDisp->Invoke(
9 ~* a- l9 V8 ^( ?0 z0 N# k pokeID,( Y, @; x+ n d5 G5 A9 V& S4 p# Y
IID_NULL,
2 V: A3 S, v1 E' O0 j4 V LOCALE_SYSTEM_DEFAULT,
4 ~# K" M' G- w u1 \+ \8 Z. _" M M DISPATCH_METHOD,, k- v) [% J+ s5 n5 T+ g' c
&dp,4 E6 A* u; F5 D/ W" f$ p% X' j
NULL,
9 ?7 d' _- }# |7 k! j" i &ei,& r* k ?! e7 T, j
&uiErr);* y( @+ x* l' s* ]" n0 m; w; I
+ r' `; r8 D: i' a SysFreeString(topicStr);/ |% t2 D3 B3 M4 b: W
SysFreeString(itemStr);7 N+ f0 c; V# R( J
SysFreeString(valueStr);
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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???
, G' ^5 w y) b) k4 F- n7 Z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????
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% M% E; H, `+ F9 Z' M2.这是request的程序- ^# y& P4 o0 r
// Request a value from Extend4 }- W, o7 `: T+ G
//
' B+ B* V/ w- N2 `3 m4 ~, {# v0 y// Initialize the variant that will hold the BSTR. Set the variant's( f" k( b; b- k' N$ Q! g1 V
// type flag to indicate the fact that this variant holds a BSTR. Place the
/ H8 j! b* r7 i0 L// BSTR into the variant structure.& S( V3 \0 N, J- `
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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+ w6 e, U( x( Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( X& Z* d! T; ~* Z1 ]6 C; i
VariantInit(&requestVariant[0]); : s! M( m2 k5 H
requestVariant[0].vt = VT_BSTR;& Y; P- ~( ^4 y ], M5 Q
requestVariant[0].bstrVal = itemStr;4 l# f1 Y% d0 p6 p' M
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topicStr = SysAllocString((WCHAR *) L"system");! C# |/ e) X+ b, Q% Z! b# E
VariantInit(&requestVariant[1]); + g' f/ d# I0 v4 r8 n! M
requestVariant[1].vt = VT_BSTR; {' p4 S- g5 x* B; v9 B! Q- K* i1 |
requestVariant[1].bstrVal = topicStr;" _$ K! R+ r1 J# _
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// Set the DISPPARAMS structure that holds the variant.2 X6 R$ m8 y0 S* f5 }
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dp2.rgvarg = requestVariant;6 b" E3 y* W; K' H, s, {
dp2.cArgs = 2;7 ^( ]% s6 q* p* @/ S v
dp2.rgdispidNamedArgs = NULL;- j/ F, E+ \3 a* \% w- \
dp2.cNamedArgs = 0;2 ?9 i0 a" |" {* N* G
- q8 t' P; E, i2 M var.vt = VT_EMPTY;- R W( S) N3 s" b6 k g, E
6 P- r- K7 O/ e6 M4 m// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
' U: @* Q. Y. t: z0 k% s# b requestID,/ N' t# t1 J$ ^- b
IID_NULL,: A: x3 i9 L" t. }: X; Y, [
LOCALE_SYSTEM_DEFAULT,3 {8 [5 x, P/ s: w. G. z1 E
DISPATCH_METHOD,4 O U- i- B5 }/ d
&dp2,
* B5 @7 Z1 P& v% ]* q5 g &var,
/ P/ ?6 y. E0 `" X+ I2 z, x &ei,
}, y- B( q0 E5 ]9 u0 [4 H &uiErr);
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SysFreeString(topicStr);* [& Q8 h' m, h8 P8 q x
SysFreeString(itemStr);
( W5 n$ `1 `9 q' C4 d请问该程序是获得extend里面的哪个值?
5 ` T6 |+ N" {# j4 G; 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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