DDHAL_GETSCANLINEDATA (Windows CE 5.0)
This structure returns the scan line. This structure passes the information to the DirectDraw hardware abstraction layer (DDHAL) GetScanLine callback function.
typedef struct _DDHAL_GETSCANLINEDATA {LPDDRAWI_DIRECTDRAW_GBLlpDD;DWORDdwScanLine;HRESULTddRVal;LPDDHAL_GETSCANLINEGetScanLine;} DDHAL_GETSCANLINEDATA;
Members
- lpDD**
Pointer to the DDRAWI_DIRECTDRAW_GBL structure that represents the DirectDraw object. - dwScanLine**
Indicates the number of the scan line. - ddRVal**
Passes the DirectDraw return values. - GetScanLine**
Used by DirectDraw and should not be filled in by the driver.
Remarks
The returned scan line value in dwScanLine must be between 0 and <n>, where scan line 0 is the first visible scan line on the screen and <n> is the last visible scan line, plus any scan lines that occur during vblank. For example, in a case where you are running at a screen resolution of 640x480, and you have 12 scan lines during vertical blank, the values returned to GetScanLine range from 0 to 491.
Requirements
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Ddrawi.h.
See Also
GetScanLine | DDRAWI_DIRECTDRAW_GBL | DirectDraw Structures
Send Feedback on this topic to the authors