// TODO: Use VisualStyles stuff in .NET 2.0 instead
/// <summary>
/// Draws a button in the appropriate system theme (Aero vs. Luna vs. Classic).
/// </summary>
/// <remarks>
/// Note to implementors: This may be implemented as a simple thunk to ControlPaint.DrawButton().
/// </remarks>
public static void DrawThemedButton(
Control hostControl,
Graphics g,
int x,
int y,
int width,
int height,
UI.ButtonState state)
{
IntPtr hTheme = OpenTheme(hostControl);
if (hTheme != IntPtr.Zero)
{
NativeStructs.RECT rect = new NativeStructs.RECT();
rect.left = x;
rect.top = y;
rect.right = x + width;
rect.bottom = y + height;
int iState;
switch (state)
{
case UI.ButtonState.Disabled:
iState = NativeConstants.PBS_DISABLED;
break;
case UI.ButtonState.Hot:
iState = NativeConstants.PBS_HOT;
break;
default:
case UI.ButtonState.Normal:
iState = NativeConstants.PBS_NORMAL;
break;
case UI.ButtonState.Pressed:
iState = NativeConstants.PBS_PRESSED;
break;
}
IntPtr hdc = g.GetHdc();
SafeNativeMethods.DrawThemeBackground(
hTheme,
hdc,
NativeConstants.BP_PUSHBUTTON,
iState,
ref rect,
ref rect);
g.ReleaseHdc(hdc);
SafeNativeMethods.CloseThemeData(hTheme);
hTheme = IntPtr.Zero;
}
else
{
System.Windows.Forms.ButtonState swfState;
switch (state)
{
case UI.ButtonState.Disabled:
swfState = System.Windows.Forms.ButtonState.Inactive;
break;
default:
case UI.ButtonState.Hot:
case UI.ButtonState.Normal:
swfState = System.Windows.Forms.ButtonState.Normal;
break;
case UI.ButtonState.Pressed:
swfState = System.Windows.Forms.ButtonState.Pushed;
break;
}
ControlPaint.DrawButton(g, x, y, width, height, swfState);
}
GC.KeepAlive(hostControl);
}
