#include "l_bitmap.h"
L_LTEFX_API L_INT L_EfxPatternFillRect(hDC, pRect, uStyle, crBack, crFore)
Draws a rectangle into the target device context, and then fills the rectangle with the specified pattern and color.
Handle to the target device context.
Pointer to the display destination rectangle.
Filling style. The following are possible values. (Values cannot be combined.)
Value | Meaning |
---|---|
EFX_PATTERN_SOLID | Solid ◼ |
EFX_PATTERN_HORZ_LINE | Horizontal lines ▤ |
EFX_PATTERN_VERT_LINE | Vertical lines ▥ |
EFX_PATTERN_DOWNWARD_DIAG | Downward diagonal lines ▨ |
EFX_PATTERN_UPWARD_DIAG | Upward diagonal lines ▧ |
EFX_PATTERN_CROSS | Cross line ▦ |
EFX_PATTERN_DIAG_CROSS | Diagonal cross lines ▩ |
EFX_PATTERN_MAX | Diagonal cross lines ▩ |
COLORREF value that specifies the background color.
COLORREF value that specifies the foreground color.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
For general information, refer to Implementing Special Effects.
Required DLLs and Libraries
Win32, x64.
This example shows the minimum requirements for using the L_EfxPatternFillRect
function to draw and fill a rectangle with a pattern and color.
L_INT EfxPatternFillRectExample(HWND hWnd,RECT* pDest)
{
L_INT nRet;
HDC hdc; /* Device context for the current window */
HPALETTE hSavedPalette = NULL; /* Temporary copy of the current system palette */
HPALETTE hOurPalette = NULL; /* The palette that we will use to paint */
L_INT nBitsPerPixel;
/* Get the device context */
hdc = GetDC (hWnd);
/* Check the device to see if we need a palette */
nBitsPerPixel = GetDeviceCaps( hdc, BITSPIXEL ) * GetDeviceCaps ( hdc, PLANES );
if ( nBitsPerPixel <=8 )
{
hOurPalette = (HPALETTE)GetStockObject (DEFAULT_PALETTE);
hSavedPalette = SelectPalette (hdc, hOurPalette, FALSE);
/* Realize our palette */
RealizePalette (hdc);
}
/* Draw the pattern filled rectangle */
nRet = L_EfxPatternFillRect (hdc, /* device context */
pDest, /* destination rectangle */
EFX_PATTERN_DIAG_CROSS, /* diagonal cross pattern */
RGB ( 0,0,0 ), /* background color, black */
RGB ( 0,0,255 ) ); /* foreground color, blue */
if(nRet != SUCCESS)
return nRet;
/* Restore the old palette */
if ( hOurPalette )
SelectPalette (hdc, hSavedPalette, FALSE);
/* Release the device context */
ReleaseDC(hWnd, hdc);
return SUCCESS;
}
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