L_EfxPatternFillRect

#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.

Parameters

HDC hDC

Handle to the target device context.

RECT *pRect

Pointer to the display destination rectangle.

L_UINT uStyle

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 crBack

COLORREF value that specifies the background color.

COLORREF crFore

COLORREF value that specifies the foreground color.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

For general information, refer to Implementing Special Effects.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

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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