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