L_BM_DESPECKLE
(Document/Medical only) Send this message to remove speckles from an L_BITMAPCLASS window's bitmap. Typically, this function is used to clean up scanned images (such as FAX images).
This function removes 1-pixel speckles, and shrinks some larger speckles. Therefore, in some cases, larger speckles can be completely removed by running it more than once.
Parameter |
Meaning |
wParam |
Specifies whether the window should be redrawn to reflect the image changes. Use 1 to redraw the window, or 0 not to redraw it. |
lParam |
Reserved. Set to NULL. |
Returns
SUCCESS |
Function was successful. |
< 0 |
An error occurred. Refer to Return Codes. |