Using the LBitmapBase::CreateFadedMask function:

Using the LBitmapBase::CreateFadedMask function:

When using the LBitmapBase::CreateFadedMask function, the general process is as follows:

1.	Create an LBitmapBase object and use it to load an image.
2.	Set a region in the image using an LBitmapRgn object.
3.	Create another LBitmapBase object to hold the fade mask and call the function on the image�s object. The images below show various fade masks resulting from the use of various flags. For these images, the following values were also used:

Region type: rounded rectangle.

nLength = 50;
nFadeRate = 15;
nStepSize = 3;
nMaxGray = 255;
crTransparent = RGB(255, 0, 0);

First: without using FADE_OUTER

1) No Flag

transparency

$image\Noflag.gif$

2) FADE_WHITETOBLACK

$image\WhtToBlk.gif$

3) FADE_DUMPFILL

$image\Dump.gif$

4) FADE_DUMPFILL | FADE_WHITETOBLACK

$image\Dump_WTB.gif$

5) FADE_DUMPFILL | FADE_FILLCOLOR_START

$image\Dump_FillColor.gif$

6) FADE_DUMPFILL | FADE_FILLCOLOR_START | FADE_WHITETOBLACK

$image\Dump_FillColor_WTB.gif$

7) FADE_DUMPFILL | FADE_NOTRANSPARENCY

$image\Dump_Notrans.gif$

8) FADE_DUMPFILL | FADE_NOTRANSPARENCY | FADE_TRANSPARENCY_ DUMPCOLOR

$image\Dump_Notrans_DumpColor.gif$

plus many other possibilities.

Second: using FADE_OUTER:

Region type:

rounded rectangle smaller than the above region, nInflate = 60

1) FADE_OUTER

$image\Notrans_outer.gif$

2) FADE_OUTER | FADE_WHITETOBLACK

$image\WTB_outer.gif$

3) FADE_OUTER | FADE_DUMPFILL

$image\Dump_outer.gif$

4) FADE_OUTER | FADE_DUMPFILL | FADE_WHITETOBLACK

$image\Dump_WTB_outer.gif$

5) FADE_OUTER | FADE_DUMPFILL | FADE_WHITETOBLACK| FADE_NOTRANSPARENCY

$image\Dump_WTB_Notrans_outer.gif$

and so on��..