#include "BIDISP.H"
VOID CALLBACK Zoom( HWND hWnd,
LONG lPoint,
LPRECT lpRect)
Description
This function computes Zoom scaling factor for a display function. The lPoint is Mouse position. This function should be called in response to WM_LBUTTONDOWN or WM_RBUTTONDOWN. The lpRect will return the new scaling factor. It should be used with DisplayImage or DisplayDIBImage().
This function is OBSOLETE. Use the Zoom functions listed under Group C.
Parameters
|
HWND |
hWnd |
The client window handle. |
|
LONG |
lPoint |
The mouse position. |
|
LPRECT |
lpRect |
The returned scaling factor. |
Return values
None.
Requirements
Header : Declared in BIDisp.h; include BIDisp.h.
Library : Use BIDisp.lib.
DLLs : BIDisp.dll.