public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode)
{
if (((hRgnDest.Wrapper != null) && (hRgnSrc1.Wrapper != null)) && (hRgnSrc2.Wrapper != null))
{
return IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode);
}
return IntNativeMethods.RegionFlags.ERROR;
}
/// <summary>
/// Combines region1 & region2 into this region. The regions cannot be null. The three regions need not be
/// distinct. For example, the sourceRgn1 can equal this region.
/// </summary>
public IntNativeMethods.RegionFlags CombineRegion(WindowsRegion region1, WindowsRegion region2, RegionCombineMode mode)
{
return(IntUnsafeNativeMethods.CombineRgn(new HandleRef(this, HRegion), new HandleRef(region1, region1.HRegion), new HandleRef(region2, region2.HRegion), mode));
}
public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode)
{
Debug.Assert(hRgnDest.Wrapper != null && hRgnDest.Handle != IntPtr.Zero, "Destination region is invalid");
Debug.Assert(hRgnSrc1.Wrapper != null && hRgnSrc1.Handle != IntPtr.Zero, "Source region 1 is invalid");
Debug.Assert(hRgnSrc2.Wrapper != null && hRgnSrc2.Handle != IntPtr.Zero, "Source region 2 is invalid");
if (hRgnDest.Wrapper == null || hRgnSrc1.Wrapper == null || hRgnSrc2.Wrapper == null)
{
return(IntNativeMethods.RegionFlags.ERROR);
}
// Note: CombineRgn can return Error when no regions are combined, this is not an error condition.
return(IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode));
}
public static extern IntNativeMethods.RegionFlags IntCombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode);
public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode) {
Debug.Assert(hRgnDest.Wrapper != null && hRgnDest.Handle != IntPtr.Zero, "Destination region is invalid");
Debug.Assert(hRgnSrc1.Wrapper != null && hRgnSrc1.Handle != IntPtr.Zero, "Source region 1 is invalid");
Debug.Assert(hRgnSrc2.Wrapper != null && hRgnSrc2.Handle != IntPtr.Zero, "Source region 2 is invalid");
if (hRgnDest.Wrapper == null || hRgnSrc1.Wrapper == null || hRgnSrc2.Wrapper == null) {
return IntNativeMethods.RegionFlags.ERROR;
}
// Note: CombineRgn can return Error when no regions are combined, this is not an error condition.
return IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode);
}
public static extern IntNativeMethods.RegionFlags IntCombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode);
public static extern int ExtSelectClipRgn( IntPtr hdc, IntPtr hrgn, RegionCombineMode fnMode );
public static extern int CombineRgn( IntPtr hrgnDest, IntPtr hrgnSrc1, IntPtr hrgnSrc2, RegionCombineMode fnCombineMode);
/// <devdoc>
/// Combines region1 & region2 into this region. The regions cannot be null.
/// The three regions need not be distinct. For example, the sourceRgn1 can equal this region.
/// </devdoc>
public IntNativeMethods.RegionFlags CombineRegion(WindowsRegion region1, WindowsRegion region2, RegionCombineMode mode) {
return IntUnsafeNativeMethods.CombineRgn(new HandleRef(this, this.HRegion), new HandleRef(region1, region1.HRegion), new HandleRef(region2, region2.HRegion), mode);
}
public static IntNativeMethods.RegionFlags CombineRgn(HandleRef hRgnDest, HandleRef hRgnSrc1, HandleRef hRgnSrc2, RegionCombineMode combineMode)
{
if (((hRgnDest.Wrapper != null) && (hRgnSrc1.Wrapper != null)) && (hRgnSrc2.Wrapper != null))
{
return(IntCombineRgn(hRgnDest, hRgnSrc1, hRgnSrc2, combineMode));
}
return(IntNativeMethods.RegionFlags.ERROR);
}
public static extern int ExtSelectClipRgn(System.IntPtr hdc, int hrgn, RegionCombineMode fnMode);
public static extern int CombineRgn(int hrgnDest, int hrgnSrc1, int hrgnSrc2, RegionCombineMode fnCombineMode);
public RegionFlags CombineRegion(WindowsRegion region1, WindowsRegion region2, RegionCombineMode mode)
{
return(CombineRgn(HRegion, region1.HRegion, region2.HRegion, mode));
}
extern public static RegionTypes CombineRgn(IntPtr hrgnDest, IntPtr hrgnSrc1, IntPtr hrgnSrc2, RegionCombineMode fnCombineMode);
