L_BM_SETZOOM
Send this message to zoom in or zoom out by setting the display scalar for an L_BITMAPCLASS window's bitmap.
|
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 |
The low order of the lParam parameter should contain the percentage scale factor. A value of 100 means no zooming. |
Returns
|
L_UINT |
The previous zoom factor. |
|
< 0 |
An error occurred. Refer to Return Codes. |