L_EfxDrawRotated3dText

#include "l_bitmap.h"

L_LTEFX_API L_INT L_EfxDrawRotated3dText(hDC, pszText, pRect, nAngle, uFlags, nXDepth, nYDepth, crText, crShadow, crHilite, hFont, hdcFore)

Draws three-dimensional text which is rotated by the amount specified into the target device context using the specified font, color, and style.

Parameters

HDC hDC

Handle to the target device context.

L_TCHAR * pszText

Text string.

RECT *pRect

Pointer to the display destination rectangle.

L_INT nAngle

Text angle, in tenths of degrees.

L_UINT uFlags

Text style. Use this parameter to control the style and justification of the three-dimensional text. For valid values, refer to Effect Text Style Flags and Effect Text Alignment Flags.

L_INT nXDepth

Horizontal shadow position.

L_INT nYDepth

Vertical shadow position.

COLORREF crText

COLORREF value that specifies the text color.

COLORREF crShadow

COLORREF value that specifies the shadow color.

COLORREF crHilite

COLORREF value that specifies the border color.

HFONT hFont

Handle to the selected font. The font must be TrueType in order to rotate.

HDC hdcFore

Handle to the source device context for the foreground. Use this parameter to place an image (such as a gradient) on the surface of the three-dimensional text. Use NULL to paint the color specified in crText.

Returns

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

Comments

The font must be TrueType in order to rotate. The rotation point will be calculated from (X, 0).

Drop shadows are available only for the following uFlags values:

The crShadow color is used for three-dimensional effects for the following uFlags values:

The crHilite color is used only for the following uFlags values:

For general information, refer to Implementing Special Effects.

Required DLLs and Libraries

Platforms

Windows 2000 / XP/Vista.

See Also

Functions

Topics

Example

This example shows the minimum requirements for using L_EfxDrawRotated3dText.

L_INT EfxDrawRotated3dTextExample(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; 
  HFONT     hFont;                  /* Font to use for the text, must be TrueType */ 
  HDC       hdcMem;                 /* HDC for foreground image */ 
  HBITMAP   hbmMem;                 /* Bitmap for foreground image */ 
  RECT      rcbm; 
 
  /* Get the device context */ 
  hdc = GetDC (hWnd); 
  /* Create the gradient for the foreground of the 3D text */   
  rcbm.top     = pDest->top; 
  rcbm.left    = pDest->left; 
  rcbm.bottom  = pDest->bottom; 
  rcbm.right   = pDest->right; 
 
  OffsetRect(&rcbm, -pDest->left, -pDest->top); 
  hdcMem = CreateCompatibleDC(hdc); 
  hbmMem = CreateCompatibleBitmap(hdc, rcbm.right, rcbm.bottom); 
  hbmMem = (HBITMAP)SelectObject(hdcMem, hbmMem); 
  /* Place a gradient in the foreground of the 3D text */ 
  nRet = L_EfxGradientFillRect(hdcMem, 
                        &rcbm, 
                        EFX_GRADIENT_LINE_L_TO_R, 
                        RGB(255, 0, 0), 
                        RGB(0, 0, 255), 
                        16 ); 
  if(nRet != SUCCESS) 
     return nRet; 
 
  /* Create the font */ 
  hFont = CreateFont(-MulDiv(32, GetDeviceCaps(hdc, LOGPIXELSY), 72), 
                     0, 0, 0, 
                     FW_BOLD, FALSE, FALSE, FALSE, 
                     DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, 
                     CLIP_DEFAULT_PRECIS, 
                     DEFAULT_QUALITY, 
                     DEFAULT_PITCH, 
                     TEXT("Arial")); 
 
  /* 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 Rotated  3D text */ 
  nRet = L_EfxDrawRotated3dText(hdc,                   /* device context */ 
                         TEXT("Rotated 3D Text - LEADTOOLS"), 
                         pDest,                 /* destination rectangle */ 
                         300,                   /* rotate 30 degrees*/ 
                         /* style flags for 3D text */ 
                         EFX_TEXT_DROPSHADOW | EFX_TEXT_HCENTER | EFX_TEXT_VCENTER, 
                         2,                     /* horizontal  shadow position */ 
                         2,                     /* vertical shadow position */ 
                         RGB ( 0,0,255 ),       /* text color, blue */ 
                         RGB ( 0,0,0 ),         /* shadow color, black */ 
                         RGB ( 255,255,255 ),   /* border color, white */ 
                         hFont, 
                         hdcMem );              /* use this to put an image in the font */ 
  if(nRet != SUCCESS) 
     return nRet; 
 
  /* Restore the old palette */ 
  if  ( hOurPalette ) 
    SelectPalette (hdc, hSavedPalette, FALSE); 
  /* Release the device context */ 
  ReleaseDC(hWnd, hdc); 
  DeleteObject (hFont); 
  DeleteObject(SelectObject(hdcMem, hbmMem)); 
  DeleteDC(hdcMem);  
   return SUCCESS; 
} 

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