L_INT LBitmapWindow::UpdateMagGlassShape(uMagGlassShape, hMagGlassRgn)
Updates the Magnifying Glass shape.
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. |
Handle to a Windows region that defines the Magnifying Glass shape. This parameter is used only if the uMagGlassShape parameter is MAGGLASS_SHAPE_HRGN.
Value | Meaning |
---|---|
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:
If the value passed in the uMagGlassShape parameter was outside the defined values.
If the value passed in the uMagGlassShape parameter was MAGGLASS_SHAPE_HRGN and the value passed to the hMagGlassRgn parameter was NULL.
Win32, x64.
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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