Displaystruct

typedef struct tagDISPLAYSTRUCT

{

RECT rOrigo;

UINT wDisplayFormat;

RECT rcScrollRange;

POINT pScrollPos;

RECT rcScale;

POINT pOffset;

POINT pBitmapSize;

int biBitCount;

RECT rcClient;

POINT ptOrg;

POINT pDPIDC;

POINT pDPIBitmap;

HPALETTE hPal;

HDIB hDIBBitmap;

HBITMAP hBitmap;

WORD wInternal;

void *StretchFunc;

long StretchData;

BOOL bIsBgTransparent;

COLORREF cBgColor;

} DISPLAYSTRUCT , FAR * LPDISPLAYSTRUCT;

Description

The DisplayWmCreate() function will set all of the parameters automatically.

Members of the structure

RECT	rOrigo	DC Origin
UINT	wDisplayFormat	Display Format Bitfield
	wDisplayFormat can be set to:
	DISP_NEWDIB		- Regenerate a new BITMAP internally.
	DISP_NORMAL		- Display image pixel by pixel.
	DISP_PREVIEW		- Forces the image to fit into the window client area using DPI information and unique scaling factors in both the vertical and horizontal direction.
	DISP_INVERT		- Displays the image as an inverted image.
	DISP_SCALED		- Use DPI information for displaying image.
	DISP_CENTER		- Forces the image to be aligned in the center of the window.
	DISP_FITSCREEN		- Forces the image to fit into the window client area using unique scaling factors in both the vertical and horizontal direction.
	DISP_NOVERTSCROLL		- Prevents the vertical scroll bar from being shown.
	DISP_NOHORZSCROLL		- Prevents the horizontal scroll bar from being shown.
	DISP_FITTOWIDTH		- Forces the image to fit to width of the window client area using unique scaling factors.
	DISP_FITTOHEIGHT		- Forces the image to fit to the height of the window client area using unique scaling factors.
	DISP_ZOOMED		- This macro hasn’t been used in the SDK functions. For DISP_ZOOMED user has to set rcScale factor.
RECT	rcScrollRange	Scroll Ranges Min Max
POINT	pScrollPos	Scroll Position
RECT	rcScale	Scaling factor
POINT	pOffset	Display Offset in Client coordinates
POINT	pBitmapSize	Bitmap Size in Pixels
int	biBitCount	Bits per Pixel
RECT	rcClient	Viewport Client Rectangle
POINT	ptOrg	Window Origin
POINT	pDPIDC	ViewPort Resolution
POINT	pDPIBitmap	Bitmap Resolution
HPALETTE	hPal	DIB Palette
HDIB	hDIBBitmap	DIB Handle
HBITMAP	hBitmap	Bitmap Handle
WORD	wInternal	Internal Flags
void	*StretchFunc	Future use
Long BOOL COLORREF	StretchData blsBgTransparent cBgColor	Future use If TRUE the background is transparent. If FALSE the cBgColor is used as background color Background color

Requirements

Header : Declared in BiDisp.h.