Epson S1D13706 Technical Manual page 248

Page 88
void seVirtPanScroll(DWORD x, DWORD y)
void seMainWinVirtPanScroll(DWORD x, DWORD y)
void seSubWinVirtPanScroll(DWORD x, DWORD y)
void seMainAndSubWinVirtPanScroll(DWORD x, DWORD y)
Description:
Parameters:
Return Value:
S1D13706
X31B-G-003-03
ERR_NOT_ENOUGH_MEMORY There is insufficient free display memory to set the
When displaying a virtual image the physical display is smaller than the virtual image
contained in display memory. In order to view the entire image, the display is treated as a
window into the virtual image.
These functions allow an application to pan (right and left) and scroll (up and down) the
display over the virtual image.
seVirtPanScroll() will pan and scroll the current active surface.
seMainWinVirtPanScroll() and seSubWinVirtPanScroll() will pan and scroll the surface
indicated in the function name.
seMainAndSubWinVirtPanScroll() will pan and scroll the surface which is used by both
the main and sub-windows.
Note
Panning operations are limited to 32-bit boundaries; x must be a multiple of 32 ÷ bits-
per-pixel.
x The new x offset, in pixels, of the upper left corner of the display.
x must be a multiple of 32 ÷ bits-per-pixel.
y The new y offset, in pixels, of the upper left corner of the display.
None.
Epson Research and Development
requested virtual display size.
Vancouver Design Center
Programming Notes and Examples
Issue Date: 01/02/23