42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// DC Cacheing - header file
|
||
|
|
//
|
||
|
|
// Support for misbehaved apps - which continue to use a DC that has been
|
||
|
|
// Released. Well the problem is WIN30 allows it, so we need to be
|
||
|
|
// compatible.
|
||
|
|
//
|
||
|
|
//
|
||
|
|
// 03-Feb-92 NanduriR Created.
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _DCCACHE{
|
||
|
|
struct _DCCACHE FAR *lpNext;
|
||
|
|
BYTE flState;
|
||
|
|
HAND16 htask16;
|
||
|
|
HAND16 hwnd16;
|
||
|
|
HDC16 hdc16;
|
||
|
|
HWND hwnd32;
|
||
|
|
} DCCACHE, FAR *LPDCCACHE;
|
||
|
|
|
||
|
|
|
||
|
|
extern INT iReleasedDCs;
|
||
|
|
|
||
|
|
#define CACHENOTEMPTY() (BOOL)(iReleasedDCs)
|
||
|
|
|
||
|
|
#define DCCACHE_STATE_INUSE 0x0001
|
||
|
|
#define DCCACHE_STATE_RELPENDING 0x0002
|
||
|
|
|
||
|
|
#define SRCHDC_TASK16_HWND16 0x0001
|
||
|
|
#define SRCHDC_TASK16_HWND32 0x0002
|
||
|
|
#define SRCHDC_TASK16 0x0004
|
||
|
|
|
||
|
|
BOOL ReleaseCachedDCs(HAND16 htask16, HAND16 hwnd16, HAND16 hdc16,
|
||
|
|
HWND hwnd32, UINT flSearch);
|
||
|
|
BOOL StoreDC(HAND16 htask16, HAND16 hwnd16, HAND16 hdc16);
|
||
|
|
BOOL CacheReleasedDC(HAND16 htask16, HAND16 hwnd16, HAND16 hdc16);
|
||
|
|
BOOL FreeCachedDCs(HAND16 htask16);
|
||
|
|
|