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яю1 . 0: CAB0=02;8205BAO A2O7L <564C <8@>2K<8 8 M:@0==K<8 :>>@48=0B0<8.
>>@48=0BK <8@>2>9 A8AB5<K :>>@48=0B >?8AK20NB 8AB8==>5 ?>;>65=85 >1J5:B0 2 ?@>AB@0=AB25.
B>@0O A8AB5<0 :>>@48=0B M:@0==0O ( 8;8 D878G5A:0O) A8AB5<0 :>>@48=0B. -B0 A8AB5<0 :>>@48=0B A2O70=0 A CAB@>9AB2>< 2K2>40 - M:@0=>< <>=8B>@0, ?@8=B5@><, 8 B. 4. ( =0G0;> :>>@48=0B 2 25@E=5< ;52>< C3;C 8 548=8F0 87<5@5=8O - ?8:A5;8) .
5>1E>48<> A>?>AB028BL :064>9 B>G:5 A 2 <8@>2KE :>>@48=0B0E ( x , y ) A>>B25BAB2CNICN B>G:C A 2 M:@0==KE :>>@48=0B0E ( n , m ) . ;O ?5@5E>40 >B <8@>2>9 A8AB5<K :>>@48=0B : M:@0==>9 A8AB5<5 :>>@48=0B, >1KG=> 2K18@0NB ;8=59=K9 70:>= ?@5>1@07>20=8O :>>@48=0B. -B> ;8=59=>5 ?@5>1@07>20=85 4>;6=> C4>2;5B2>@OBL 548=AB25==><C B@51>20=8N, GB>1K C3;K ?>;O 2K2>40 2 <8@>2>9 A8AB5<5 :>>@48=0B, A>>B25BAB2>20;8 C3;0< ?>;O 2K2>40 2 M:@0==>9 A8AB5<5 :>>@48=0B.
2 . A>15==>AB8 ?@8<5=5=8O i n l i n e - DC=:F89.
I n l i n e - DC=:F8O MB> B0:0O DC=:F8O, GL5 B5;> ?>4AB02;O5BAO 2 :064CN B>G :C 2K7>20, 2<5AB> B>3>, GB>1K 35=5@8@>20BL :>4 2K7>20. A?>;L7>20=85 i n l i n e - DC=:F89 MB> 206=0O >A>15==>ABL O7K:0 !+ + , :>B>@CN =5;L7O =09B8 2 !.
n = ( x - x L e f t ) / ( x R i g h t - x L e f t ) * ( n R i g h t - n L e f t ) + n L e f t ;
m = ( y - y B o t t o m ) / ( y T o p - y B o t t o m ) * ( m T o p - m B o t t o m ) + m B o t t o m ;
0 !@@:
/ / ?5@5E>4 >B x : ?8:A5;N n
i n l i n e i n t x n ( d o u b l e x )
{
r e t u r n ( i n t ) ( ( x - x L e f t ) / ( x R i g h t - x L e f t ) * ( n R i g h t - n L e f t ) ) + n L e f t ;
}
/ / ?5@5E>4 >B y : ?8:A5;N m
i n l i n e i n t y m ( d o u b l e y )
{
r e t u r n ( i n t ) ( ( y - y B o t t o m ) / ( y T o p - y B o t t o m ) * ( m T o p - m B o t t o m ) ) + m B o t t o m ;
}
3 . 0:85 3@0D8G5A:85 181;8>B5:8 8A?>;L7CNBAO 2 W i n d o w s .
A;8 ?@>3@0<<0 @01>B05B ?>4 W i n d o w s , B> :><?8;OB>@ 8A?>;L7C5B DC=:F88 3@0D8G5A:>3> 8=B5@D59A0 G D I ( G r a p h i c D e v i c e I n t e r f a c e 8=B5@D59A 3@0D8G5A:8E CAB@>9AB2) , :>B>@K5 ?@54>AB02;O5B 5<C A8AB5<0 W i n d o w s . ?@>3@0<<0E W i n 3 2 <>6=> 8A?>;L7>20BL B0:65 3@0D8G5A:85 DC=:F88 A?5F80;878@>20==KE 3@0D8G5A:8E 181;8>B5:, B0:8E :0: O p e n G L .
4 . 'B> >1>7=0G05B A>1>9 A8AB5<0 A P I DC=:F89, 8 A8AB5<0 G D I DC=:F89.
?5@0F8>==0O A8AB5<0 W i n d o w s 8<55B =01>@ 181;8>B5G=KE DC=:F89 4;O @07@01>B:8 ?@8;>65=89. -B8 DC=:F88 >15A?5G820NB H8@>:CN ?>445@6:C ?@>3@0<<8@>20=8O ?@8;>65=89 W i n d o w s 8 2 A>2>:C?=>AB8 =07K20NBAO 8=B5@D59A A P I ( A p p l i c a t i o n P r o g r a m I n t e r f a c e 8=B5@D59A ?@8:;04=>3> ?@>3@0<<8@>20 =8O) . @0D8G5A:85 DC=:F88 87 A>AB020 A P I W i n d o w s >1J548=5=K 2 >B45;L=CN 3@C??C ?>4A8AB5<C G D I ( G r a p h i c D e v i c e I n t e r f a c e 8=B5@D59A 3@0D8G5A:8E CAB@>9AB2) .
5 . G5< A>AB>8B <5E0=87< >1@01>B:8 A>>1I5=89 ?@8 @01>B5 ?@8;>65=8O.
A5 A2>8 459AB28O ?@>3@0<<0 ?@>872>48B 2 >B25B =0 ?>A;54>20B5;L=>ABL A>>1I5=89. A5 2@5<O ?>:0 ?@>3@0<<0 @01>B05B, W i n d o w s ?>AK;05B 59 A>>1I5=8O. !>>1I5=85 2>7=8:05B, 5A;8 GB>- B> ?@>8AE>48B 2 A8AB5<5, =0?@8<5@ =060B85 :;028H8, 42865=85 <KH8 8 B. 4. -B8 A>>1I5=8O ?><5I0NBAO 2 >G5@54L. G5@54L <>65B E@0=8BL =5A:>;L:> A>>1I5=89. @>3@0<<0 >1@0I05BAO : >G5@548 8 872;5:05B ?5@2>5 87 A>>1I5=89. 0B5< ?@>3@0<<0 8;8 >1@010BK205B MB> A>>1I5=85 8;8 ?5@5E>48B : A;54CNI5<C A>>1I5=8N.
6 . 0:85 B@8 >A=>2=KE 1;>:0 A>45@68B 3;02=0O DC=:F8O ?@>3@0<<K W i n M a i n ( ) .
1 ) 538AB@0F8O :;0AA0 >:=0.
2 ) !>740=85 >:=0 8 2K2>4 53> =0 M:@0=.
3 ) 0?CA: F8:;0 >1@01>B:8 A>>1I5=89.
7 . 0:0O A P I DC=:F8O 2K?>;=O5B @538AB@0F8N :;0AA0 >:=0 ?@>3@0<<K.
R e g i s t e r C l a s s ( ) .
8 . 0:0O A P I DC=:F8O A>7405B >:=> ?@>3@0<<K.
C r e a t e W i n d o w ( ) A >48==04F0BLN ?0@0<5B@0<8
9 . 0:0O A P I DC=:F8O 45;05B 2848<K< >:=> ?@>3@0<<K.
S h o w W i n d o w ( ) .
1 0 . ;O G53> =C6=0 DC=:F8O >:=0 ?@>3@0<<K W n d P r o c ( ) .
W n d P r o c , 2 :>B>@CN 1C4CB ?@8E>48BL A>>1I5=8O, 45A:@8?B>@ ?@8;>65=8O h I n s t a n c e , 8<O :;0AA0 >:=0 c n a m e , 8 =5:>B>@K5 4@C385 ?0@0<5B@K.
$C=:F8O W n d P r o c MB> >A>15==0O DC=:F8O, >=0 2K7K205BAO A0<>9 A8AB5<>9, :>340 >:=C ?@8E>48B A>>1I5=85. $C=:F8O >:=0 W n d P r o c 8<55B G5BK@5 ?0@0<5B@0, A>2?040NI85 A ?5@2K<8 G5BK@L<O ?>;O<8 AB@C:BC@K M S G .
1 1 . G5< >A>15==>ABL A>>1I5=8O W M _ P A I N T .
!>>1I5=85 W M _ P A I N T ?@8E>48B 2A5340, :>340 >:=> @8AC5BAO ?5@2K9 @07, 8;8 ?5@5@8A>2K205BAO 2 @57C;LB0B5 87<5=5=8O @07<5@>2, @0725@BK20=8O, 8;8 G0AB8G=>3> ?5@5:@KB8O 4@C38<8 >:=0<8. >MB><C DC=:F8N L i n e _ P a i n t ( ) 4;O @8A>20=8O A8=CA>84K <>6=> 2K720BL 2 >B25B =0 A>>1I5=85 W M _ P A I N T .
1 2 . >340 ?>AK;05BAO A>>1I5=85 W M _ D E S T R O Y , 8 ?>G5<C MB> A>>1I5=85 =5>1E>48<> >1@01>B0BL.
!>>1I5=85 W M _ D E S T R O Y ?@8E>48B ?@8 70:@KB88 >:=0 ?@8;>65=8O, =0?@8<5@, ?@8 =060B88 =0 :@5AB8: 2 ?@02>< 25@E=5< C3;C. $C=:F8O P o s t Q u i t M e s s a g e ( ) 7025@H05B @01>BC ?@>3@0<<K. A;8 =5 2K720BL MBC DC=:F8N, B> <>65B A;>68BLAO A8BC0F8O, :>340 >:=> ?@8;>65=8O 8AG5705B A M:@0=0, 0 ?@>3@0<<0 ?@>4>;605B @01>B0BL.
1 3 . 0:85 459AB28O 2K?>;=O5B DC=:F8O D e f W i n d o w P r o c ( ) .
$C=:F8O D e f W i n d o w P r o c ( ) <>65B >1@010BK20BL ;N1>5 A>>1I5=85, ?@8E>4OI55 : >:=C.
1 4 . 0:85 DC=:F88 8A?>;L7CNBAO 4;O ?>;CG5=8O 8 >A2>1>645=8O :>=B5:AB0 M:@0=0 2 >B25B =0 A>>1I5=85 W M _ P A I N T .
?0@0 DC=:F89 B e g i n P a i n t ( ) 8 E n d P a i n t ( ) 4>;6=0 8A?>;L7>20BLAO B>;L:> 2> 2@5<O >1@01>B:8 A>>1I5=8O W M _ P A I N T .
1 5 . 0:85 DC=:F88 A>740NB ?5@LO 8 :8AB8.
C r e a t e S o l i d B r u s h ( )
1 6 . ! ?><>ILN, :0:8E DC=:F89, A>740==K5 0B@81CBK @8AC=:0, <>6=> ?><5AB8BL 2 :>=B5:AB M:@0=0.
1 7 . :0:8E A;CG0OE 4;O ?>;CG5=8O 8 >A2>1>645=8O :>=B5:AB0 M:@0=0, 8A?>;L7CNBAO DC=:F88 G e t D C ( ) 8 R e l e a s e D C ( ) .
1 8 . 0:0O DC=:F8O 8A?>;L7C5BAO 4;O C=8GB>65=8O ?5@0 8 :8AB8.
1 9 . 'B> B0:>5 3@0D8G5A:85 ?@8<8B82K =0 C@>2=5 G D I - DC=:F89.
2 0 . 0:85 DC=:F88 @8ACNB ?8:A5;L, >B@57>: ;8=88.
2 1 . 0:0O DC=:F8O @8AC5B ;><0=CN ;8=8N.
2 2 . 0:0O DC=:F8O @8AC5B ?>;83>=.
2 3 . 0:85 3@0D8G5A:85 >1J5:BK @8ACNB DC=:F88 A r c ( ) , R e c t a n g l e ( ) , E l l i p s e ( ) , C h o r d ( ) .
2 4 . 0:0O 8=D>@<0F8O A>45@68BAO 2 D09;0E @5AC@A>2 r e s o u r c e . h 8 P r o g r a m . r c .
2 5 . 0:>5 ?>;5 AB@C:BC@K W N D C L A S S =04> 70?>;=8BL, GB>1K ?>4:;NG8BL <5=N : ?@>3@0<<5.
2 6 . 0:85 87<5=5=8O =04> 2=5AB8 2 DC=:F8N >:=0 W n d P r o c ( ) , GB> 1K 0:B82878@>20BL ?C=:BK <5=N.
2 7 . :0:>< >:=5 @540:B>@0 @5AC@A>2, <>6=> 87<5=8BL 845=B8D8:0B>@ ?C=:B0 <5=N.
2 8 . 0: <>6=> 8A?>;L7>20BL DC=:F8N I n v a l i d a t e R e c t ( ) 4;O >1=>2;5=8O >:=0 ?@8;>65=8O.
2 9 . 0:0O DC=:F8O 8A?>;L7C5BAO 4;O A>740=8O =>2>3> H@8DB0.
3 0 . 0:85 ?>;O 8<55B AB@C:BC@0 L O G F O N T .
>>@48=0BK <8@>2>9 A8AB5<K :>>@48=0B >?8AK20NB 8AB8==>5 ?>;>65=85 >1J5:B0 2 ?@>AB@0=AB25.
B>@0O A8AB5<0 :>>@48=0B M:@0==0O ( 8;8 D878G5A:0O) A8AB5<0 :>>@48=0B. -B0 A8AB5<0 :>>@48=0B A2O70=0 A CAB@>9AB2>< 2K2>40 - M:@0=>< <>=8B>@0, ?@8=B5@><, 8 B. 4. ( =0G0;> :>>@48=0B 2 25@E=5< ;52>< C3;C 8 548=8F0 87<5@5=8O - ?8:A5;8) .
5>1E>48<> A>?>AB028BL :064>9 B>G:5 A 2 <8@>2KE :>>@48=0B0E ( x , y ) A>>B25BAB2CNICN B>G:C A 2 M:@0==KE :>>@48=0B0E ( n , m ) . ;O ?5@5E>40 >B <8@>2>9 A8AB5<K :>>@48=0B : M:@0==>9 A8AB5<5 :>>@48=0B, >1KG=> 2K18@0NB ;8=59=K9 70:>= ?@5>1@07>20=8O :>>@48=0B. -B> ;8=59=>5 ?@5>1@07>20=85 4>;6=> C4>2;5B2>@OBL 548=AB25==><C B@51>20=8N, GB>1K C3;K ?>;O 2K2>40 2 <8@>2>9 A8AB5<5 :>>@48=0B, A>>B25BAB2>20;8 C3;0< ?>;O 2K2>40 2 M:@0==>9 A8AB5<5 :>>@48=0B.
2 . A>15==>AB8 ?@8<5=5=8O i n l i n e - DC=:F89.
I n l i n e - DC=:F8O MB> B0:0O DC=:F8O, GL5 B5;> ?>4AB02;O5BAO 2 :064CN B>G :C 2K7>20, 2<5AB> B>3>, GB>1K 35=5@8@>20BL :>4 2K7>20. A?>;L7>20=85 i n l i n e - DC=:F89 MB> 206=0O >A>15==>ABL O7K:0 !+ + , :>B>@CN =5;L7O =09B8 2 !.
n = ( x - x L e f t ) / ( x R i g h t - x L e f t ) * ( n R i g h t - n L e f t ) + n L e f t ;
m = ( y - y B o t t o m ) / ( y T o p - y B o t t o m ) * ( m T o p - m B o t t o m ) + m B o t t o m ;
0 !@@:
/ / ?5@5E>4 >B x : ?8:A5;N n
i n l i n e i n t x n ( d o u b l e x )
{
r e t u r n ( i n t ) ( ( x - x L e f t ) / ( x R i g h t - x L e f t ) * ( n R i g h t - n L e f t ) ) + n L e f t ;
}
/ / ?5@5E>4 >B y : ?8:A5;N m
i n l i n e i n t y m ( d o u b l e y )
{
r e t u r n ( i n t ) ( ( y - y B o t t o m ) / ( y T o p - y B o t t o m ) * ( m T o p - m B o t t o m ) ) + m B o t t o m ;
}
3 . 0:85 3@0D8G5A:85 181;8>B5:8 8A?>;L7CNBAO 2 W i n d o w s .
A;8 ?@>3@0<<0 @01>B05B ?>4 W i n d o w s , B> :><?8;OB>@ 8A?>;L7C5B DC=:F88 3@0D8G5A:>3> 8=B5@D59A0 G D I ( G r a p h i c D e v i c e I n t e r f a c e 8=B5@D59A 3@0D8G5A:8E CAB@>9AB2) , :>B>@K5 ?@54>AB02;O5B 5<C A8AB5<0 W i n d o w s . ?@>3@0<<0E W i n 3 2 <>6=> 8A?>;L7>20BL B0:65 3@0D8G5A:85 DC=:F88 A?5F80;878@>20==KE 3@0D8G5A:8E 181;8>B5:, B0:8E :0: O p e n G L .
4 . 'B> >1>7=0G05B A>1>9 A8AB5<0 A P I DC=:F89, 8 A8AB5<0 G D I DC=:F89.
?5@0F8>==0O A8AB5<0 W i n d o w s 8<55B =01>@ 181;8>B5G=KE DC=:F89 4;O @07@01>B:8 ?@8;>65=89. -B8 DC=:F88 >15A?5G820NB H8@>:CN ?>445@6:C ?@>3@0<<8@>20=8O ?@8;>65=89 W i n d o w s 8 2 A>2>:C?=>AB8 =07K20NBAO 8=B5@D59A A P I ( A p p l i c a t i o n P r o g r a m I n t e r f a c e 8=B5@D59A ?@8:;04=>3> ?@>3@0<<8@>20 =8O) . @0D8G5A:85 DC=:F88 87 A>AB020 A P I W i n d o w s >1J548=5=K 2 >B45;L=CN 3@C??C ?>4A8AB5<C G D I ( G r a p h i c D e v i c e I n t e r f a c e 8=B5@D59A 3@0D8G5A:8E CAB@>9AB2) .
5 . G5< A>AB>8B <5E0=87< >1@01>B:8 A>>1I5=89 ?@8 @01>B5 ?@8;>65=8O.
A5 A2>8 459AB28O ?@>3@0<<0 ?@>872>48B 2 >B25B =0 ?>A;54>20B5;L=>ABL A>>1I5=89. A5 2@5<O ?>:0 ?@>3@0<<0 @01>B05B, W i n d o w s ?>AK;05B 59 A>>1I5=8O. !>>1I5=85 2>7=8:05B, 5A;8 GB>- B> ?@>8AE>48B 2 A8AB5<5, =0?@8<5@ =060B85 :;028H8, 42865=85 <KH8 8 B. 4. -B8 A>>1I5=8O ?><5I0NBAO 2 >G5@54L. G5@54L <>65B E@0=8BL =5A:>;L:> A>>1I5=89. @>3@0<<0 >1@0I05BAO : >G5@548 8 872;5:05B ?5@2>5 87 A>>1I5=89. 0B5< ?@>3@0<<0 8;8 >1@010BK205B MB> A>>1I5=85 8;8 ?5@5E>48B : A;54CNI5<C A>>1I5=8N.
6 . 0:85 B@8 >A=>2=KE 1;>:0 A>45@68B 3;02=0O DC=:F8O ?@>3@0<<K W i n M a i n ( ) .
1 ) 538AB@0F8O :;0AA0 >:=0.
2 ) !>740=85 >:=0 8 2K2>4 53> =0 M:@0=.
3 ) 0?CA: F8:;0 >1@01>B:8 A>>1I5=89.
7 . 0:0O A P I DC=:F8O 2K?>;=O5B @538AB@0F8N :;0AA0 >:=0 ?@>3@0<<K.
R e g i s t e r C l a s s ( ) .
8 . 0:0O A P I DC=:F8O A>7405B >:=> ?@>3@0<<K.
C r e a t e W i n d o w ( ) A >48==04F0BLN ?0@0<5B@0<8
9 . 0:0O A P I DC=:F8O 45;05B 2848<K< >:=> ?@>3@0<<K.
S h o w W i n d o w ( ) .
1 0 . ;O G53> =C6=0 DC=:F8O >:=0 ?@>3@0<<K W n d P r o c ( ) .
W n d P r o c , 2 :>B>@CN 1C4CB ?@8E>48BL A>>1I5=8O, 45A:@8?B>@ ?@8;>65=8O h I n s t a n c e , 8<O :;0AA0 >:=0 c n a m e , 8 =5:>B>@K5 4@C385 ?0@0<5B@K.
$C=:F8O W n d P r o c MB> >A>15==0O DC=:F8O, >=0 2K7K205BAO A0<>9 A8AB5<>9, :>340 >:=C ?@8E>48B A>>1I5=85. $C=:F8O >:=0 W n d P r o c 8<55B G5BK@5 ?0@0<5B@0, A>2?040NI85 A ?5@2K<8 G5BK@L<O ?>;O<8 AB@C:BC@K M S G .
1 1 . G5< >A>15==>ABL A>>1I5=8O W M _ P A I N T .
!>>1I5=85 W M _ P A I N T ?@8E>48B 2A5340, :>340 >:=> @8AC5BAO ?5@2K9 @07, 8;8 ?5@5@8A>2K205BAO 2 @57C;LB0B5 87<5=5=8O @07<5@>2, @0725@BK20=8O, 8;8 G0AB8G=>3> ?5@5:@KB8O 4@C38<8 >:=0<8. >MB><C DC=:F8N L i n e _ P a i n t ( ) 4;O @8A>20=8O A8=CA>84K <>6=> 2K720BL 2 >B25B =0 A>>1I5=85 W M _ P A I N T .
1 2 . >340 ?>AK;05BAO A>>1I5=85 W M _ D E S T R O Y , 8 ?>G5<C MB> A>>1I5=85 =5>1E>48<> >1@01>B0BL.
!>>1I5=85 W M _ D E S T R O Y ?@8E>48B ?@8 70:@KB88 >:=0 ?@8;>65=8O, =0?@8<5@, ?@8 =060B88 =0 :@5AB8: 2 ?@02>< 25@E=5< C3;C. $C=:F8O P o s t Q u i t M e s s a g e ( ) 7025@H05B @01>BC ?@>3@0<<K. A;8 =5 2K720BL MBC DC=:F8N, B> <>65B A;>68BLAO A8BC0F8O, :>340 >:=> ?@8;>65=8O 8AG5705B A M:@0=0, 0 ?@>3@0<<0 ?@>4>;605B @01>B0BL.
1 3 . 0:85 459AB28O 2K?>;=O5B DC=:F8O D e f W i n d o w P r o c ( ) .
$C=:F8O D e f W i n d o w P r o c ( ) <>65B >1@010BK20BL ;N1>5 A>>1I5=85, ?@8E>4OI55 : >:=C.
1 4 . 0:85 DC=:F88 8A?>;L7CNBAO 4;O ?>;CG5=8O 8 >A2>1>645=8O :>=B5:AB0 M:@0=0 2 >B25B =0 A>>1I5=85 W M _ P A I N T .
?0@0 DC=:F89 B e g i n P a i n t ( ) 8 E n d P a i n t ( ) 4>;6=0 8A?>;L7>20BLAO B>;L:> 2> 2@5<O >1@01>B:8 A>>1I5=8O W M _ P A I N T .
1 5 . 0:85 DC=:F88 A>740NB ?5@LO 8 :8AB8.
C r e a t e S o l i d B r u s h ( )
1 6 . ! ?><>ILN, :0:8E DC=:F89, A>740==K5 0B@81CBK @8AC=:0, <>6=> ?><5AB8BL 2 :>=B5:AB M:@0=0.
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