diff options
Diffstat (limited to 'GdiTest/Win32GDI.cs')
| -rw-r--r-- | GdiTest/Win32GDI.cs | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/GdiTest/Win32GDI.cs b/GdiTest/Win32GDI.cs index be620eb..0fd19c4 100644 --- a/GdiTest/Win32GDI.cs +++ b/GdiTest/Win32GDI.cs @@ -24,10 +24,10 @@ namespace GdiTest public static extern bool DeleteObject(IntPtr hObject); [DllImport("gdi32.dll")] - public static extern int GetPixel(IntPtr hdc, int X, int Y); + public static extern uint GetPixel(IntPtr hdc, int X, int Y); [DllImport("gdi32.dll")] - public static extern int SetPixel(IntPtr hdc, int X, int Y, int crColor); + public static extern uint SetPixel(IntPtr hdc, int X, int Y, int crColor); [DllImport("gdi32")] public static extern bool MoveToEx(IntPtr hdc, int X, int Y, IntPtr lpPoint); @@ -116,7 +116,7 @@ namespace GdiTest return false; } - public override int GetPixel(IntPtr hdc, int X, int Y) + public override uint GetPixel(IntPtr hdc, int X, int Y) { if (available) return Callbacks.GetPixel(hdc, X, Y); @@ -124,7 +124,7 @@ namespace GdiTest return 0; } - public override int SetPixel(IntPtr hdc, int X, int Y, int crColor) + public override uint SetPixel(IntPtr hdc, int X, int Y, int crColor) { if (available) return Callbacks.SetPixel(hdc, X, Y, crColor); @@ -132,6 +132,17 @@ namespace GdiTest return 0; } + public System.Drawing.Color GetPixelColor(int x, int y) + { + IntPtr hdc = GetDC(IntPtr.Zero); + uint pixel = Callbacks.GetPixel(hdc, x, y); + ReleaseDC(IntPtr.Zero, hdc); + System.Drawing.Color color = System.Drawing.Color.FromArgb((int)(pixel & 0x000000FF), + (int)(pixel & 0x0000FF00) >> 8, + (int)(pixel & 0x00FF0000) >> 16); + return color; + } + public override bool MoveToEx(IntPtr hdc, int X, int Y, IntPtr lpPoint) { if (available) |