private void CreatePen()
{
if (width > 1) // Geometric pen.
{
// From MSDN: if width > 1, the style must be PS_NULL, PS_SOLID, or PS_INSIDEFRAME.
style |= WindowsPenStyle.Geometric | WindowsPenStyle.Solid;
}
if (wndBrush == null)
{
nativeHandle = IntSafeNativeMethods.CreatePen((int)style, width, ColorTranslator.ToWin32(color));
}
else
{
IntNativeMethods.LOGBRUSH lb = new IntNativeMethods.LOGBRUSH
{
lbColor = ColorTranslator.ToWin32(wndBrush.Color),
lbStyle = IntNativeMethods.BS_SOLID,
lbHatch = 0
};
// Note: We currently don't support custom styles, that's why 0 and null for last two params.
nativeHandle = IntSafeNativeMethods.ExtCreatePen((int)style, width, lb, 0, null);
}
}
public static int GetObject(HandleRef hBrush, IntNativeMethods.LOGBRUSH lb)
{
int retVal = IntGetObject(hBrush, System.Runtime.InteropServices.Marshal.SizeOf(typeof(IntNativeMethods.LOGBRUSH)), lb);
DbgUtil.AssertWin32(retVal != 0, "GetObject(hObj=[0x{0:X8}], [LOGBRUSH]) failed.", hBrush.Handle);
return(retVal);
}
public static IntPtr ExtCreatePen(int fnStyle, int dwWidth, IntNativeMethods.LOGBRUSH lplb, int dwStyleCount, int[] lpStyle)
{
IntPtr hPen = System.Internal.HandleCollector.Add(IntExtCreatePen(fnStyle, dwWidth, lplb, dwStyleCount, lpStyle), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hPen != IntPtr.Zero, "IntExtCreatePen(style={0}, width={1}, brush={2}, styleCount={3}, styles={4}) failed.", fnStyle, dwWidth, lplb, dwStyleCount, lpStyle);
return(hPen);
}
public static WindowsBrush FromDC(DeviceContext dc)
{
IntPtr hBrush = IntUnsafeNativeMethods.GetCurrentObject(new HandleRef(null, dc.Hdc), IntNativeMethods.OBJ_BRUSH);
IntNativeMethods.LOGBRUSH logBrush = new IntNativeMethods.LOGBRUSH();
IntUnsafeNativeMethods.GetObject(new HandleRef(null, hBrush), logBrush);
// don't call DeleteObject on handle from GetCurrentObject, it is the one selected in the hdc.
return(WindowsBrush.FromLogBrush(dc, logBrush));
}
public static WindowsBrush FromLogBrush(DeviceContext dc, IntNativeMethods.LOGBRUSH logBrush)
{
Debug.Assert(logBrush != null, "logBrush is null");
switch (logBrush.lbStyle)
{
// currently supported brushes:
case IntNativeMethods.BS_HATCHED:
return(new WindowsHatchBrush(dc, (WindowsHatchStyle)logBrush.lbHatch));
case IntNativeMethods.BS_SOLID:
return(new WindowsSolidBrush(dc, Color.FromArgb(logBrush.lbColor)));
default:
Debug.Fail("Don't know how to create WindowsBrush from specified logBrush");
return(null);
}
}
private void CreatePen()
{
if (this.width > 1)
{
this.style |= WindowsPenStyle.Geometric;
}
if (this.wndBrush == null)
{
this.nativeHandle = IntSafeNativeMethods.CreatePen((int) this.style, this.width, ColorTranslator.ToWin32(this.color));
}
else
{
IntNativeMethods.LOGBRUSH lplb = new IntNativeMethods.LOGBRUSH {
lbColor = ColorTranslator.ToWin32(this.wndBrush.Color),
lbStyle = 0,
lbHatch = 0
};
this.nativeHandle = IntSafeNativeMethods.ExtCreatePen((int) this.style, this.width, lplb, 0, null);
}
}
private void CreatePen()
{
if (this.width > 1) // Geometric pen.
{
// From MSDN: if width > 1, the style must be PS_NULL, PS_SOLID, or PS_INSIDEFRAME.
this.style |= WindowsPenStyle.Geometric | WindowsPenStyle.Solid;
}
if (this.wndBrush == null)
{
this.nativeHandle = IntSafeNativeMethods.CreatePen((int)this.style, this.width, ColorTranslator.ToWin32(this.color));
}
else
{
IntNativeMethods.LOGBRUSH lb = new IntNativeMethods.LOGBRUSH();
lb.lbColor = ColorTranslator.ToWin32(this.wndBrush.Color);
lb.lbStyle = IntNativeMethods.BS_SOLID;
lb.lbHatch = 0; // CONSIDER: Check if HatchBrush and get the style if so (If needed in the future).
// Note: We currently don't support custom styles, that's why 0 and null for last two params.
this.nativeHandle = IntSafeNativeMethods.ExtCreatePen((int)this.style, this.width, lb, 0, null);
}
}
public static extern int IntGetObject(HandleRef hBrush, int nSize, [In, Out] IntNativeMethods.LOGBRUSH lb);
private static extern IntPtr IntExtCreatePen(int fnStyle, int dwWidth, IntNativeMethods.LOGBRUSH lplb, int dwStyleCount, [MarshalAs(UnmanagedType.LPArray)] int[] lpStyle);
public static WindowsBrush FromDC(DeviceContext dc)
{
IntPtr hBrush = IntUnsafeNativeMethods.GetCurrentObject(new HandleRef(null, dc.Hdc), IntNativeMethods.OBJ_BRUSH);
IntNativeMethods.LOGBRUSH logBrush = new IntNativeMethods.LOGBRUSH();
IntUnsafeNativeMethods.GetObject(new HandleRef(null, hBrush), logBrush);
// don't call DeleteObject on handle from GetCurrentObject, it is the one selected in the hdc.
return WindowsBrush.FromLogBrush(dc, logBrush );
}
private void CreatePen()
{
if (this.width > 1) // Geometric pen.
{
// From MSDN: if width > 1, the style must be PS_NULL, PS_SOLID, or PS_INSIDEFRAME.
this.style |= WindowsPenStyle.Geometric | WindowsPenStyle.Solid;
}
if (this.wndBrush == null)
{
this.nativeHandle = IntSafeNativeMethods.CreatePen((int) this.style, this.width, ColorTranslator.ToWin32(this.color) );
}
else
{
IntNativeMethods.LOGBRUSH lb = new IntNativeMethods.LOGBRUSH();
lb.lbColor = ColorTranslator.ToWin32( this.wndBrush.Color );
lb.lbStyle = IntNativeMethods.BS_SOLID;
lb.lbHatch = 0; // CONSIDER: Check if HatchBrush and get the style if so (If needed in the future).
// Note: We currently don't support custom styles, that's why 0 and null for last two params.
this.nativeHandle = IntSafeNativeMethods.ExtCreatePen((int)this.style, this.width, lb, 0, null );
}
}
