#include "ltwrappr.h"
L_INT LBitmapWindow::UpdateMagGlassShape(uMagGlassShape, hMagGlassRgn)
L_UINT uMagGlassShape; |
flags that indicate the magnifying glass shape |
L_HRGN hMagGlassRgn; |
handle to the Windows region |
Updates the Magnifying Glass shape.
Parameter | Description | |
uMagGlassShape | Flags that indicate the magnifying glass shape. Possible values are: | |
Value | Meaning | |
MAGGLASS_SHAPE_RECT | [0] Rectangle shape of Magnifying Glass. | |
MAGGLASS_SHAPE_ELLIPSE | [1] Ellipse shape of Magnifying Glass. | |
MAGGLASS_SHAPE_HRGN | [2] User-defined shape of Magnifying Glass. | |
hMagGlassRgn | Handle to a Windows region that defines the Magnifying Glass shape. This parameter is used only if the uMagGlassShape parameter is MAGGLASS_SHAPE_HRGN. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
The width and height of the Magnifying Glass will be changed according to the width and height of the passed hMagGlassRgn parameter if the uMagGlassShape parameter was set to MAGGLASS_SHAPE_HRGN.
The Magnifying Glass will stop and this function will return an error value in two cases:
1. |
If the value passed in the uMagGlassShape parameter was outside the defined values. |
2. |
If the value passed in the uMagGlassShape parameter was MAGGLASS_SHAPE_HRGN and the value passed to the hMagGlassRgn parameter was NULL. |
Required DLLs and Libraries
LTDIS |
Win32, x64.
Functions: |
LBitmapWindow::GetMagGlassOptions, LBitmapWindow::MagGlassCallBack, Class Members |
Topics: |
|
|
L_INT LBitmapWindow__UpdateMagGlassShapeExample(LBitmapWindow &LeadBWnd,HWND hWnd)
{
L_INT nRet;
HRGN hRoundRectRgn;
hRoundRectRgn = CreateRoundRectRgn(0, 0, 100, 100, 25, 25);
nRet = LeadBWnd.SetWndHandle(hWnd);
if(nRet != SUCCESS)
return nRet;
LeadBWnd.SetToolType(TOOL_MAGGLASS);
if(nRet != SUCCESS)
return nRet;
nRet = LeadBWnd.UpdateMagGlassShape(MAGGLASS_SHAPE_HRGN, hRoundRectRgn);
if(nRet != SUCCESS)
return nRet;
DeleteRgn(hRoundRectRgn);
LeadBWnd.SetWndHandle(NULL);
return SUCCESS;
}
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