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- Description
The TDx_Draw::WaitForVerticalBlank method will help synchronize an application with the VBI.
If the method call fails, the OnError event will be triggered with one of the following values:
DDERR_INVALIDOBJECT
DDERR_INVALIDPARAMS
DDERR_UNSUPPORTED
DDERR_WASSTILLDRAWING
- Parameters
Flags
The Flags parameter defines flags indicating which portion of the vertical blank to wait for.
The described effect applies when the flag is set.
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DDWAITVB_BLOCKBEGIN
The method will return at the start of the VBI.
DDWAITVB_BLOCKBEGINEVENT
The event referenced by the Event parameter of this method will be triggered at the start of the VBI.
Support for this flag is not currently available.
DDWAITVB_BLOCKEND
The method will return at the end of the VBI.
- See Also
- Top
TDx_Draw_Library v2.00 Component Reference
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[ TDx_Draw::WaitForVerticalBlank() ] [ prev: TestCooperativeLevel() ] public:
virtual bool __fastcall WaitForVerticalBlank( dword pFlags );
TDX_DRAW::WAITFORVERTICALBLANK()
[ component method ]
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