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windows.gdiplus: start-gdi+/stop-gdi+/check-gdi+-status helper words

db4
Joe Groff 2010-07-06 22:36:24 -07:00
parent 5a3b6960e0
commit 099607bfdd
1 changed files with 24 additions and 1 deletions
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25
basis/windows/gdiplus/gdiplus.factor
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@ -1,5 +1,5 @@
! (c)2010 Joe Groff bsd license
USING: alien.c-types alien.destructors alien.syntax
USING: alien.c-types alien.data alien.destructors alien.syntax
classes.struct kernel math windows.com windows.com.syntax
windows.kernel32 windows.ole32 windows.types ;
FROM: alien.c-types => float ;
@ -1624,3 +1624,26 @@ FUNCTION: GpStatus GdipCreateStreamOnFile ( WCHAR* x, UINT x, IStream** x ) ;
FUNCTION: GpStatus GdipGetImageEncodersSize ( UINT* numEncoders, UINT* size ) ;
FUNCTION: GpStatus GdipGetImageEncoders ( UINT numEncoders, UINT size, ImageCodecInfo* encoders ) ;
FUNCTION: GpStatus GdipTestControl ( GpTestControlEnum x, void* x ) ;
ERROR: gdi+-error status ;
: check-gdi+-status ( GpStatus -- )
dup Ok = [ drop ] [ gdi+-error ] if ;
CONSTANT: standard-gdi+-startup-input
S{ GdiplusStartupInput
{ GdiplusVersion 1 }
{ DebugEventCallback f }
{ SuppressBackgroundThread 0 }
{ SuppressExternalCodecs 0 }
}
: (start-gdi+) ( startup-input -- token startup-output )
{ ULONG_PTR GdiplusStartupOutput }
[ swapd GdiplusStartup check-gdi+-status ] [ ] with-out-parameters ;
: start-gdi+ ( -- token )
standard-gdi+-startup-input (start-gdi+) drop ; inline
: stop-gdi+ ( token -- )
GdiplusShutdown ;
DESTRUCTOR: stop-gdi+