L_GlassEffectBitmap
#include "l_bitmap.h"
L_LTIMGSFX_API L_INT L_GlassEffectBitmap(pBitmap, uCellWidth, uCellHeight, uFlags)
pBITMAPHANDLE pBitmap; |
/* pointer to the bitmap handle */ |
L_UINT uCellWidth; |
/* cell width */ |
L_UINT uCellHeight; |
/* cell height */ |
L_UINT uFlags; |
/* flags */ |
Divides the bitmap into rectangular cells and makes it look as if it is being viewed through glass blocks.
Parameter |
Description |
|
pBitmap |
Pointer to the bitmap handle referencing the bitmap to be changed. |
|
uCellWidth |
Value that represents the width of a cell in pixels or the number of cells present across the width of the bitmap, based on the flags set in uFlags. The valid range is between 2 and half the bitmap width. |
|
uCellHeight |
Value that represents the height of a cell in pixels or the number of cells present across the height of the bitmap, based on the flags set in uFlags. The valid range is between 2 and half the bitmap height. |
|
uFlags |
Flags that indicate what type of data is in the uCellWidth and uCellHeight parameters. You can use a bitwise OR (|) to specify one flag from each group. |
|
|
The following are the flags that indicate the type of data in the uCellWidth parameter: |
|
|
Value |
Meaning |
|
GLASS_WFRQ |
[0x0001] The parameter uCellWidth is the number of cells along the width of the bitmap. |
|
GLASS_WPER |
[0x0002] The parameter uCellWidth is the width of the cell in pixels. |
|
The following are the flags that indicate the type of data in the uCellHeight parameter: |
|
|
Value |
Meaning |
|
GLASS_HFRQ |
[0x0010] The parameter uCellHeight is the number of cells along the height of the bitmap. |
|
GLASS_HPER |
[0x0020] The parameter uCellWidth is the height of the cell in pixels. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
If the bitmap has a region, the effect will be applied on the region only.
This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Required DLLs and Libraries
LTIMGSFX For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Platforms
Windows 2000 / XP/Vista.
See Also
Example
The following example loads a bitmap and applies a glass effect to it:
L_INT GlassEffectBitmapExample(L_VOID) { L_INT nRet; BITMAPHANDLE LeadBitmap; /* Bitmap handle to hold the loaded image. */ /* Load the bitmap, keeping the bits per pixel of the file */ nRet = L_LoadBitmap(TEXT("C:\\Program Files\\LEAD Technologies\\LEADTOOLS 15\\Images\\IMAGE1.CMP"), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); if(nRet !=SUCCESS) return nRet; /* apply glass effect */ nRet = L_GlassEffectBitmap(&LeadBitmap, 20,10, GLASS_WFRQ | GLASS_HPER ); if(nRet !=SUCCESS) return nRet; nRet = L_SaveBitmap(TEXT("C:\\Program Files\\LEAD Technologies\\LEADTOOLS 15\\Images\\Result.BMP"), &LeadBitmap, FILE_BMP, 24, 0, NULL); if(nRet !=SUCCESS) return nRet; //free bitmap if(LeadBitmap.Flags.Allocated) L_FreeBitmap(&LeadBitmap); return SUCCESS; }